ALBERT

Description: This paper presents a formula for the failing pressure of curvilinear pipeline components. The formula is used to determine the wall thickness of curvilinear components (bends, elbows, double bends, double elbows). Content Type Journal Article Pages 666-667 DOI 10.1007/s10556-012-9528-0 Authors P. G. Pimshtein, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia O. E. Kabanova, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: With the aim of determining the possible use of dismountable assembled pipes after prolonged storage for the construction of a pipeline between industries under extreme north conditions, studies are made of their engineering condition and full-scale tests. Content Type Journal Article Pages 674-678 DOI 10.1007/s10556-012-9530-6 Authors V. V. Klimov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia A. P. Korchagin, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia K. A. Kuznetsov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Ya. Yu. Shlenskii, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia G. Yu. Rozhemberskaya, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia V. V. Antipin, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Trends of development of technical diagnosis methods are discussed, and experience of use and development of new technologies of acoustic monitoring of pipelines based on the use of waveguide properties of the monitored object is described. Content Type Journal Article Category Technical Diagnostics and Innovative Solutions in Technical Diagnostics Field Pages 687-695 DOI 10.1007/s10556-012-9533-3 Authors S. P. Bykov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia K. A. Kuznetsov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia D. V. Inshakov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia V. P. Kolmakov, Angarsk Petrochemical Company, Angarsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: This paper gives a brief review of existing methods of measuring the resistivity of a layer of dust collected in electric filters and indicates their drawbacks. Content Type Journal Article Pages 619-623 DOI 10.1007/s10556-012-9520-8 Authors Yu. I. Sanaev, Kondor-Eko Company, Semibratovo, Yaroslavl Oblast, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Results are provided for corrosion tests of steel specimens with coatings of different compositions, prepared by surfacing under the action of a laser beam. Data are provided for weight loss of specimens coated with highly alloyed corrosion-resistant and tool steels, tin bronze, and alloys based on nickel and cobalt. The pH of working solutions is 3.1–9.0. the nature of corrosion damage and specimen transverse section structure are described. Research shows that use of protective coatings based on steel and on nonferrous metals may considerably reduce breakdown of objects manufactured from structural steels. The most marked reduction in weight loss due to corrosion develops for a coating based on cobalt (up to 82 %). Alloys based on nickel and highly alloyed steels SS316L and SS410L showed an increase in corrosion resistance from 38 to 43 %. Content Type Journal Article Pages 380-383 DOI 10.1007/s10556-012-9627-y Authors A. N. Mazurkevich, VNIIavtogenmash, Moscow, Russia I. N. Shiganov, Bauman Moscow State Technical University, Moscow, Russia R. S. Tretyakov, Bauman Moscow State Technical University, Moscow, Russia O. Yu. Elagina, Gubkin Russian State University of Oil and Gas, Moscow, Russia A. K. Prygaev, Gubkin Russian State University of Oil and Gas, Moscow, Russia A. V. Buryakin, Gubkin Russian State University of Oil and Gas, Moscow, Russia Yu. V. Baklanova, Gubkin Russian State University of Oil and Gas, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355 Journal Volume Volume 48 Journal Issue Volume 48, Numbers 5-6

Description: Self-oscillations of an intra-pipe inspection pig are investigated. A dynamic model of the machine is formulated, and its motion regimes are analyzed qualitatively. The law governing the motion of the inspection pig and the law governing the velocity variation corresponding to it are derived. Content Type Journal Article Category SAFETY, DIAGNOSIS, AND REPAIR Pages 364-371 DOI 10.1007/s10556-012-9625-0 Authors D. V. Aksenov, Moscow State Technical University (MAMI), Moscow, Russia V. I. Shcherbakov, Moscow State Technical University (MAMI), Moscow, Russia V. V. Leshchenko, Neftgasdiagnostika Scientific and Technical Center, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355 Journal Volume Volume 48 Journal Issue Volume 48, Numbers 5-6

Description: Effectiveness of particle fractionation in a continuous-flow centrifuge is analyzed quantitatively on the basis of the grain-size distribution of the powder, and integral relationships with respect to computational distribution functions. Content Type Journal Article Category Research, Design, Calculations, and Operating Experience Pages 1-8 DOI 10.1007/s10556-012-9620-5 Authors E. V. Semenov, Plekhanov Russian Economics University, Moscow, Russia A. V. Karamzin, Mir-Prodmash Research Institute, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The problem of adaptive determination of the optimal frequency of sensor interrogation for calculation of the work performed by a dc motor in a control system is examined on the basis of evaluation of the relative error of the calculation. Content Type Journal Article Pages 1-5 DOI 10.1007/s10556-012-9614-3 Authors N. I. Gdanskii, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia A. V. Karpov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia A. A. Bugaenko, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Experimental data on radon entrapment in the adsorbers of the thorough-purification unit of the krypton– xenon mixture producing plant KhROM-3 are reported. The possibility of monitoring radon content in the atmospheric air in the region of operation of this plant is shown. The radon concentration at two facilities in Ukraine is found to differ significantly. Calculations show that it is possible to remove radon from the primary krypton concentrate (PKC) at the stage of its purification from the combustion products, which will allow one to enhance the effectiveness of radiation safety at the krypton–xenon mixture producing plant. The data derived can be applied to other plants of this type that have an adsorption purification unit. Content Type Journal Article Category Cryogenic Engineering, Production and Use of Industrial Gases, Vacuum Engineering Pages 1-7 DOI 10.1007/s10556-012-9624-1 Authors V. L. Bondarenko, Bauman Moscow State Technical University, Moscow, Russia N. P. Losyakov, Aisblik Company, Odessa, Ukraine V. B. Vorotyntsev, Aisblik Company, Odessa, Ukraine I. A. Losyakov, Aisblik Company, Odessa, Ukraine V. A. Mamrenko, Odessa Academy of Refrigeration, Odessa, Ukraine Ya. V. Dzyuzyura, Odessa Academy of Refrigeration, Odessa, Ukraine A. A. Vinnik, Odessa Academy of Refrigeration, Odessa, Ukraine Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: During crevice corrosion of steel 12Kh18N10T, local activation may arise as a result of pitting formation close to the mouth of a crevice by the action of ion-activators or as a result of depassivation of individual areas (spotting) within the depth of a crevice due to acidification of crevice solution by hydrolysis products. Activation of steel within a crevice by a chloride pitting mechanisms is most probable at normal temperature in aerated solutions, and by a spotting depassivation mechanism at elevated temperature in deaerated solutions. Content Type Journal Article Category MATERIALS SCIENCE AND CORROSION PROTECTION Pages 1-8 DOI 10.1007/s10556-012-9626-z Authors V. S. Pakhomov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia R. Videnbek, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Results of numerical and experimental investigations of pneumatic piston engines with self-acting valves and various air-distributing systems are reported. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9616-1 Authors A. P. Zagorodnikov, Omsk State Technical University, Omsk, Russia A. N. Kabakov, Omsk State Technical University, Omsk, Russia V. S. Kalekin, Omsk State Technical University, Omsk, Russia D. V. Kalekin, Omsk State Technical University, Omsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: This paper reports the results of investigations of an adsorption cassette consisting of a compact capacious element with a developed adsorption layer in the form of a packet of eight layers of carbon cloth of the trademark KUT-M pressed between box-shaped perforated aluminum substrates. The evacuation parameters of the cassette are determined. It is found that the operating absorption capacity is 1.7–2 times higher than the adsorption capacity of the cassette determined under isothermal conditions. It is experimentally demonstrated that the adsorbent in the cassette is effectively protected by a cylindrical shield with one-way entry which cools the elements and a face disk-like shield. Content Type Journal Article Category Cryogenic Engineering, Production and Use of Industrial Gases, Vacuum Engineering Pages 1-4 DOI 10.1007/s10556-012-9613-4 Authors O. E. Chubarov, Balashikha Cryogenic Machine Building Plant (Kriomash BZKM), Balashikha, Moscow Region, Russia E. V. Chubarov, Balashikha Cryogenic Machine Building Plant (Kriomash BZKM), Balashikha, Moscow Region, Russia V. V. Semenov, Balashikha Cryogenic Machine Building Plant (Kriomash BZKM), Balashikha, Moscow Region, Russia I. M. Zagiev, Balashikha Cryogenic Machine Building Plant (Kriomash BZKM), Balashikha, Moscow Region, Russia S. V. Semenov, Balashikha Cryogenic Machine Building Plant (Kriomash BZKM), Balashikha, Moscow Region, Russia A. V. Semenov, Balashikha Cryogenic Machine Building Plant (Kriomash BZKM), Balashikha, Moscow Region, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Formulas are presented for calculation of residual post-bending stresses that develop in pipe fittings. The formulas are derived as a result of solution of the elasto-plastic problem of the bending of a straight pipe. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9621-4 Authors P. G. Pimshtein, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia O. E. Kabanova, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The basic aspects of use of magnetic clutches and magnetic systems in sealed machine designs are examined. The investigation results are reported and recommendations are offered for their application. Content Type Journal Article Pages 1-5 DOI 10.1007/s10556-012-9615-2 Authors A. Ya. Krasilnikov, Yeltsin Ural Federal University (UrFU), Ekaterinburg, Russia A. A. Krasilnikov, Sverdlovskii Research and Design Institute of Chemical Machine Building (SverdNIIkhimmash), Ekaterinburg, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Technology is developed and introduced for preparing a highly efficient corrosion inhibitor based on regenerated plant raw material for protecting gas and oil industry equipment, and supply lines from internal surface corrosion, hydrogenation, and sulfide corrosion cracking, caused by the action of hydrogen sulfide-containing mineralized aqueous media. Content Type Journal Article Pages 1-5 DOI 10.1007/s10556-012-9619-y Authors R. N. Zagidullin, Applied Research Institute, Sterlitamak, Bashkortostan Republic, Russian Federation T. G. Dmitrieva, Applied Research Institute, Sterlitamak, Bashkortostan Republic, Russian Federation R. F. Yamaleev, Applied Research Institute, Sterlitamak, Bashkortostan Republic, Russian Federation S. N. Zagidullin, Applied Research Institute, Sterlitamak, Bashkortostan Republic, Russian Federation Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Causes of the difference in the coefficients of equations of the surface of a revolving-liquid eddy, which are derived by different methods, are explained. Content Type Journal Article Pages 1-2 DOI 10.1007/s10556-012-9622-3 Authors A. D. Murskii, Technological Institute, Branch of the Ulyanovsk State Agricultural Academy, Dimitrovgrad, Russia D. V. Zhabin, Technological Institute, Branch of the Ulyanovsk State Agricultural Academy, Dimitrovgrad, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Results of analyses of the profile shaping of a corrugated pipe are presented. Cases of the shaping of a low-profile corrugation, and the shaping of a high-profile corrugation with vertical and inclined walls and a plane and circular arch are examined. Content Type Journal Article Category MANUFACTURING TECHNOLOGY Pages 1-7 DOI 10.1007/s10556-012-9628-x Authors D. E. Sidorov, National Technical University of Ukraine – Kiev Polytechnic Institute, Kiev, Ukraine V. I. Sivetskii, National Technical University of Ukraine – Kiev Polytechnic Institute, Kiev, Ukraine A. E. Kolosov, National Technical University of Ukraine – Kiev Polytechnic Institute, Kiev, Ukraine A. S. Sakharov, National Technical University of Ukraine – Kiev Polytechnic Institute, Kiev, Ukraine Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Possibilities are considered for an engineering approach to evaluating steel brittle failure resistance under the action of low climatic temperatures. Information is provided about critical brittleness temperatures for a number of carbon, silicon-manganese, and chromium-molybdenum steels applied to different forms of billets (rolled product, pipes, forgings) and objects made from them. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9618-z Authors A. P. Korchagin, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia K. A. Kuznetsov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia S. V. Demkin, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia A. A. Antipenko, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Mass transfer from the volume of medium within a crevice and conversely is of considerable importance for crevice corrosion. A device is used based on a system of two horizontal coaxial disks, one of which (specimen with an annular crevice) is stationary, and the second (counter disk) rotates. This makes it possible to control hydrodynamic conditions around the stationary disk surface and evaluate quantitatively the rate of convective-diffusion mass transfer towards its surface. Data are obtained for the distribution of liquid flow rate over the depth of a crevice with a prescribed counter disk rotation frequency. It is shown that with an increase in crevice width the more critical value of cathodic process rate at a surface within a crevice remains constant, in spite of an increase in solution convective restoration intensity within a crevice. Under natural convection condition within the volume of solution oxygen distribution over the depth of a crevice is very uneven, and this may lead to occurrence of differential aeration pairs. With induced convection within solution around the mouth of a crevice, the cathodic process of oxygen renewal penetrates into the depth of a crevice and is distributed more uniformly over the surface within a crevice. Content Type Journal Article Category MATERIALS SCIENCE AND CORROSION PROTECTION Pages 1-9 DOI 10.1007/s10556-012-9617-0 Authors V. S. Pakhomov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia R. Videnbek, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Problem situations are analyzed for the basic production cycle of preparing reinforced objects of composite epoxy polymers. The expedience of using ultrasonic modification in order to achieve energy saving and improve object quality is substantiated. Content Type Journal Article Pages 1-7 DOI 10.1007/s10556-012-9629-9 Authors A. E. Kolosov, National Technical University of Ukraine – Kiev Polytechnic Institute, Kiev, Ukraine A. S. Sakharov, National Technical University of Ukraine – Kiev Polytechnic Institute, Kiev, Ukraine V. I. Sivetskii, National Technical University of Ukraine – Kiev Polytechnic Institute, Kiev, Ukraine D. E. Sidorov, National Technical University of Ukraine – Kiev Polytechnic Institute, Kiev, Ukraine A. L. Sokolskii, National Technical University of Ukraine – Kiev Polytechnic Institute, Kiev, Ukraine Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Designs and conditions of operation of various types of equipment employable in compound fertilizer plants are proposed. Tube reactors which preclude crust formation on their inner surface, drum granulators-driers with simultaneous delivery of pulp varying in acidity, jalousie-type apparatus with a fluidized-bed for cooling, separation, and conditioning of granules under vacuum, and scheme for separating commercial fraction of the product with minimization of screening surface have been developed. These developments are used under industrial conditions. Content Type Journal Article Pages 1-7 DOI 10.1007/s10556-012-9610-7 Authors I. G. Grishaev, Samoilov Research Institute for Fertilizers and Insectofungicides (NIUIF), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A method is proposed, and local thermal fluxes around the circumference of water-wall tubes in tube furnaces are analyzed. The method is based on the zonal approach to description of radiational and complex heat exchange and statistical modeling of radiation for the purpose of determining local generalized slopes. The method of calculation and results of analysis of the local heat-release rate of tubes in reaction furnaces with double-daylight one- and two-tier tube water walls assume scientific and practical significance for design of this type of equipment. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9611-6 Authors O. Yu. Kuleshov, Engels Technological Institute, Branch of the Saratov State Techncial University, Engels, Russia V. M. Sedyolkin, Engels Technological Institute, Branch of the Saratov State Techncial University, Engels, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Equipment modules for multi-assortment production of reagent-quality aliphatic hydrocarbons and petroleum ethers are developed on the basis of information CALS-technologies. CALS circuits are created for rules governing production of adsorption-treatment, chemical-treatment, preliminary-distillation, precise-distillation, and finish-distillation modules. Content Type Journal Article Pages 1-7 DOI 10.1007/s10556-012-9609-0 Authors V. E. Trokhin, Scientific Center of Low-Tonnage Chemistry, Moscow, Russia A. G. Vendilo, Scientific Center of Low-Tonnage Chemistry, Moscow, Russia A. M. Bessarabov, Scientific Center of Low-Tonnage Chemistry, Moscow, Russia A. A. Kazakov, Scientific Center of Low-Tonnage Chemistry, Moscow, Russia T. I. Stepanova, Scientific Center of Low-Tonnage Chemistry, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Conventional technologies of synthetic liquid fuels (SLF) production from gaseous hydrocarbons by producing synthesis gas and synthesizing synthetic liquid hydrocarbons are examined. A high-efficiency SLF production technology that allows creation of high-efficiency autonomous units of specific capacities, including small ones, eliminates use of oxygen for producing synthesis gas and reduces energy consumption by thorough utilization of the heat of process and energy flows, including low-potential, is described. In this technology, the hydrocarbon feedstock conversion processes and synthesis of liquid hydrocarbons are carried out with highly effective fine-grained catalysts under optimal temperature conditions in compact reactors of a new design. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9623-2 Authors D. L. Astanovskii, FAST ENGINEERING Company, Moscow, Russia L. Z. Astanovskii, FAST ENGINEERING Company, Moscow, Russia A. L. Lapidus, Gubkin Russian State University of Oil and Gas, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Formulas are presented for calculation of stresses in elastic and plastic regions of convoluted piping elements existing in an elasto-plastic state under internal pressure. Content Type Journal Article Category Research, Design, Calculations, and Operating Experience Pages 1-4 DOI 10.1007/s10556-012-9608-1 Authors P. G. Pimshtein, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia O. E. Kabanova, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A solution is presented for the problem of thermoelasticity of a thick-wall hollow cylindrical structure fashioned from foam polyurethane with an outer layer of basalt plastic. A method is proposed for determination of the temperature field across the section, which is based on solution of a nonlinear heat-conduction equation. The influence exerted by temperature on the magnitude of the specific heat conduction and elastic modulus, which takes into account the material’s heterogeneity, is indicated. A partial-linearization scheme using Kirchhoff transforms is proposed on the basis of solution of a linear equation with variable coefficients, and a successive-approximation scheme based on the finite-element method is employed. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9612-5 Authors G. P. Ponomareva, Engels Technical University, Branch of the Saratov State Technical University, Engels, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The effect of the degree of deformation and operating temperature on the change in fatigue properties of steels of different strength categories is considered. Content Type Journal Article Category Materials Science and Corrosion Protection Pages 1-4 DOI 10.1007/s10556-012-9586-3 Authors Yu. D. Shapovalova, Kursk State Agricultural Academy, Kursk, Russia T. I. Romanova, Kursk State Agricultural Academy, Kursk, Russia L. A. Efimenko, Gubkin Russian State University of Oil and Gas, Moscow, Russia O. Yu. Elagina, Gubkin Russian State University of Oil and Gas, Moscow, Russia D. E. Vyshemirskii, Gubkin Russian State University of Oil and Gas, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A method is described for microplasma coating of metal components, advantages and disadvantages are given, and physical properties of these coatings are provided. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9587-2 Authors D. V. Inshakov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia M. V. Teplyakov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Experimental data are provided for preparation of nanodispersed powders of aqueous salt solutions with additions of carbon nanotubes (CNT). The effect of CNT on dimensional properties of the products obtained, specific surface, and particle size distribution are studied. Data are provided for the significant increase in powder specific surface with a small addition of CNT to a system. Particle nanosize distribution in granules of end product is established. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9585-4 Authors M. B. Generalov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia K. D. Onopko, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia L. V. Seryakova, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: This study is devoted to numerical investigation of a spring insert used to intensify heat exchange in a tube for various Reynolds numbers. Results of flow visualization are presented. Computed results are compared with experimental data. Conclusions concerning the range of application of regimes for the vortex generator in question are drawn. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9581-8 Authors V. V. Volodin, Joint Institute of High Temperatures, Russian Academy of Sciences (OIVT RAN), Moscow, Russia I. N. Laskin, Joint Institute of High Temperatures, Russian Academy of Sciences (OIVT RAN), Moscow, Russia V. V. Golub, Joint Institute of High Temperatures, Russian Academy of Sciences (OIVT RAN), Moscow, Russia G. V. Kasharailo, Joint Institute of High Temperatures, Russian Academy of Sciences (OIVT RAN), Moscow, Russia V. L. Golovachev, All-Russia Research and Design Institute for Petroleum Machine Building (VNIINEFTEMASh), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Today, a large number of direct-flow gate valves with a single slide plate are used in the petroleum industry, and, in particular, for oil and gas recovery. Moreover, the service life of well-head equipment in Russia may attain many tens of years. In this respect, modernization of these gate valves for the purpose of extending their service life and lengthen their inter-repair period is urgent. The tendency currently exists to broaden use of gate valves with a stationary spindle; however, the assigned running time to loss of serviceability of the sliding couple is not always realized. The following modernized gate valve has been designed: with an extensible spindle, and with no opposing rod; and, a special mechanical drive is developed. The gate valve developed permits a significant increase in running time to failure of the gate and packing gland; an appreciable reduction in the control force; and, retention of ease of use at the series-production level. Modernization of the gate valve makes it possible to extend the inter-repair interval and running time to failure, and reduce the control force. Content Type Journal Article Pages 1-5 DOI 10.1007/s10556-012-9570-y Authors R. Kh. Arifulin, Gubkin Russian State University of Oil and Gas, Moscow, Russia I. M. Kashtanov, Gubkin Russian State University of Oil and Gas, Moscow, Russia N. A. Antonov, Gubkin Russian State University of Oil and Gas, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: In this article, recommendations are offered regarding selection of basic design components and a description is given of a test bench for investigating the processes that occur in the working chambers of an experimental thermoacoustic device which realizes standing wave cycle. The basic calculating relationships, which determine the critical parameters of the medium in the standing wave cycle and are essential for getting the geometric parameters of the basic units of the experimental device, such as acoustic vibration generator, external heat exchangers, stack, etc., are given. Content Type Journal Article Category Cryogenic engineering, production and use of industrial gases, vacuum engineering Pages 1-6 DOI 10.1007/s10556-012-9582-7 Authors V. L. Bondarenko, Odessa State Academy of Refrigeration, Odessa, Ukraine N. N. Suryaninova, Aisblik Company, Odessa, Ukraine Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Designs of contact devices for heat- and mass-exchange tower equipment, which combine the advantages of both trays, and also packings, are examined. The possibility of using several of these devices in existing equipment without its significant modernization is demonstrated. Content Type Journal Article Category RESEARCH, DESIGN, CALCULATIONS, AND OPERATING EXPERIENCE Pages 1-6 DOI 10.1007/s10556-012-9576-5 Authors I. O. Mikulyonok, National Technical University of Ukraine – Kiev Polytechnic Institute (NTUU KPI), Kiev, Ukraine Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Integration of different cleaning methods is most effective for satisfying human needs for clean water. In the integrated process development period, including processes for permeable surfaces, attention is drawn to the fact that it is necessary to carry out research at the level of advanced calculation technology for use of processes of combined cleaning in ecological schemes. In view of this, it is important to conduct intensive research in the field of combined use of chemical, physicochemical, biological, and other purification methods in single integrated purification schemes. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9574-7 Authors Kh. B. Yunusov, Moscow State Regional University, Moscow, Russia S. L. Zakharov, Mendeleev Russian University of Chemical Technology, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The hydraulic resistance of packing is studied, intended for use in cassette biofilters. The proposed packing of lavsan monofibers 1 mm thick has minimal hydraulic resistance compared with other known forms of packing used in practice. Values of hydraulic resistance coefficient ζ are obtained for dry packing. The value of ζ is 0.3 with values of criterion Re 〉 1400. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9573-8 Authors A. K. Mitin, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia A. Yu. Valdberg, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia A. S. Pushnov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Condensation cooling of saturated gases in contact-type heat exchangers installed in gas purification systems is studied. An empirical relationship characterizing saturated-gas condensation cooling efficiency in various types of apparatuses is derived. A method of engineering calculation of saturated-gas condensation cooling in a tubular (hollow) jet-spray scrubber is proposed. Content Type Journal Article Pages 1-7 DOI 10.1007/s10556-012-9567-6 Authors A. Yu. Valdberg, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia N. M. Savitskaya, State Research Institute of Industrial and Sanitary Gas Cleaning (NIIOGAZ), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The feasibility of using pervaporation (permeation through a selective membrane, followed by evaporation) in combined mass-transfer processes in chemical industries is examined. Process flow diagrams that combine pervaporation with continuous fractionation, absorption, liquid extraction, and crystallization are proposed. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9565-8 Authors I. O. Mikulyonok, Kiev Polytechnic Institute, Kiev, Ukraine G. L. Ryabtsev, Kiev Polytechnic Institute, Kiev, Ukraine Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: In this paper, the method of determination of limit plastic load in intersecting cylindrical shells using maximum relative plastic work rate criterion is discussed. Numerical elastic-plastic analysis was performed using finite-element method, shell theory, and plastic theory. The calculated limit plastic moment values are compared with the known experimental and calculated data for six prototype vessel models having a radial branch pipe loaded by a moment in the longitudinal and cross-sectional plane of the joint. Content Type Journal Article Pages 1-7 DOI 10.1007/s10556-012-9566-7 Authors V. N. Skopinskii, Moscow State Industrial University, Moscow, Russia N. A. Berkov, Moscow State Industrial University, Moscow, Russia A. D. Emelyanova, Moscow State Industrial University, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Methods are analyzed for “finishing” treatment of filter cloths imparting special material properties. An abundance of thermal, chemical, mechanical, and special treatments for filter cloth and combination of these treatments makes it possible to create materials for efficient application under specific operating conditions. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9572-9 Authors S. Yu. Panov, Voronezh State University of Engineering Technologies, Voronezh, Russia E. V. Arkhangelskaya, Voronezh State University of Engineering Technologies, Voronezh, Russia Yu. V. Krasovitskii, Voronezh State University of Engineering Technologies, Voronezh, Russia Z. S. Gasanov, Voronezh State University of Engineering Technologies, Voronezh, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Physicochemical and biological conversion in heterogeneous gas–liquid systems is used increasingly in different production processes. Dispersion in a gas–liquid system is used for creating various interphase surfaces, providing high intensity heat and mass transfer. Dispersion of gases in production equipment is accomplished by different types of dispersers (pneumatic, mechanical, etc.). In resolving the problem of creating material for effective gas dispersers, it is necessary to consider that as a rule these materials will be used at elevated temperature, in corrosive media, and also under conditions of the action of corrosive gases upon them. A material that today answers all these requirements is porous permeable ceramic. Results are presented in this article for creation of porous permeable ceramic material, its properties, technology for creating fine-bubble gas dispersers are studied, and these dispersers are tested in gas-liquid reactors in various branches of industry. Content Type Journal Article Pages 1-7 DOI 10.1007/s10556-012-9577-4 Authors B. L. Krasnyi, Bakor Scientific and Technical Center, Shcherbinka, Moscow Oblast, Russia V. P. Tarasovskii, Bakor Scientific and Technical Center, Shcherbinka, Moscow Oblast, Russia A. B. Krasnyi, Bakor Scientific and Technical Center, Shcherbinka, Moscow Oblast, Russia O. I. Adrov, Bakor Scientific and Technical Center, Shcherbinka, Moscow Oblast, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Theoretical mechanics methods are used to find reaction in bends of a pipeline due to the action of liquid flow centrifugal forces. The results obtained in special cases agree with results obtained both by a theorem for the change in amount of movement and sidelong elastic impact. In contrast to existing procedures, the method proposed makes it possible to find the point of application of resultant centrifugal forces in a pipeline bend, which it is necessary to know for correct placement of pipeline supports for the purpose of increasing its fatigue strength. Content Type Journal Article Pages 1-3 DOI 10.1007/s10556-012-9578-3 Authors A. D. Murskii, Technological Institute, Branch of Ulyanovsk State Agricultural Academy, Dimitrovgrad, Ulyanovsk Oblast, Russia I. I. Shigapov, Technological Institute, Branch of Ulyanovsk State Agricultural Academy, Dimitrovgrad, Ulyanovsk Oblast, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Results are presented for a computational analysis performed to determine the most favorable diameters of the high-temperature section of the flue pipe in crude heaters with an intermediate heat-transfer medium. It is demonstrated that economically suitable diameters for the flue pipe are limited by the minimum value for which the working expression was obtained in the study. It is also indicated that ring-vortex generators placed in the high-temperature section of the flue pipe for intensification of convective heat exchange are technically and economically expedient. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9579-2 Authors Yu. Ya. Pechenegov, Engels Engineering University, Branch of the Saratov State Technical University, Engels, Saratov Oblast, Russia I. P. Denisenko, Balakovo Institute of Engineering, Technology, and Management, Branch of the Saratov State Technical University, Balakovo, Saratov Oblast, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Mechanisms and appropriate engineering solutions are considered for improving various methods for regenerating granular dust collectors. Model interpolation calculations for evaluating the efficiency of the recommendations developed are proposed and tested in practice. Content Type Journal Article Category Industrial Ecology Pages 1-4 DOI 10.1007/s10556-012-9571-x Authors Yu. V. Krasovitskii, Voronezh State University of Engineering Technologies, Voronezh, Russia S. Yu. Panov, Voronezh State University of Engineering Technologies, Voronezh, Russia E. V. Romanyuk, Voronezh State University of Engineering Technologies, Voronezh, Russia N. N. Lobacheva, Voronezh State University of Engineering Technologies, Voronezh, Russia I. D. Lyutikov, Voronezh State University of Engineering Technologies, Voronezh, Russia A. S. Burtseva, Voronezh State University of Engineering Technologies, Voronezh, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: An evaluation is given for the power consumption in a two-stroke gas pump based on a piston acoustical resonator and other devices for the blowing of gas. It is demonstrated by comparison that the energy efficiency of the two-stoke acoustical blower is higher than that of any blower operating in a stationary regime. Content Type Journal Article Category Compressors, Pumps, and Pipeline Fittings Pages 1-3 DOI 10.1007/s10556-012-9569-4 Authors R. A. Ermakov, TatNIIneftemash, Republic of Tatarstan, Russian Federation A. F. Sadykov, TatNIIneftemash, Republic of Tatarstan, Russian Federation R. G. Galiullin, Kazan (Volga) Federal University, Republic of Tatarstan, Russian Federation V. M. Larionov, Kazan (Volga) Federal University, Republic of Tatarstan, Russian Federation Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: This article reports experimental data for a flooding-type cryoadsorption pump cooled with liquid nitrogen. The evacuating elements having cryosorbing carbon cloth of the trademark KUT-M are placed between substrates made of perforated aluminum sheet. The technical characteristics of the pump are determined experimentally. Content Type Journal Article Category Cryogenic Engineering, Production and Use of Industrial Gases, Vacuum Engineering Pages 1-3 DOI 10.1007/s10556-012-9568-5 Authors O. E. Chubarov, Balashikha Cryogenic Machine Building Plant (Kriomash-BZKM), Balashikha, Moscow Oblast, Russia E. V. Chubarov, Balashikha Cryogenic Machine Building Plant (Kriomash-BZKM), Balashikha, Moscow Oblast, Russia V. V. Semenov, Balashikha Cryogenic Machine Building Plant (Kriomash-BZKM), Balashikha, Moscow Oblast, Russia I. M. Zagiev, Balashikha Cryogenic Machine Building Plant (Kriomash-BZKM), Balashikha, Moscow Oblast, Russia S. V. Semenov, Balashikha Cryogenic Machine Building Plant (Kriomash-BZKM), Balashikha, Moscow Oblast, Russia A. V. Semenov, Balashikha Cryogenic Machine Building Plant (Kriomash-BZKM), Balashikha, Moscow Oblast, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Structures for tube – tube sheet welded joints (TTSWJ) and schemes for x-radiographic monitoring are considered. Monitoring problems connected with further development of heat exchanger structures, and their solution, are defined. Description of a developed and manufactured test example of an automated device for TTSWJ x-radiographic monitoring with programmed control is provided. The device makes it possible to monitor for one exposure joints with a diameter from 8 to 20 mm. The manual operating part includes placing an unexposed film holder into the device and its removal after exposure. Fulfillment of exposure conditions (voltage, current, etc.) and subsequent passage around a TTSWJ is accomplished automatically by a prescribed regime. The test example is tested on TTSWJ specimens and models made of titanium and stainless steel; results are provided. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9550-2 Authors E. Yu. Usachev, Diagnostika-M Company, Moscow, Russia V. E. Usachev, Diagnostika-M Company, Moscow, Russia V. N. Tverdokhlebov, Diagnostika-M Company, Moscow, Russia M. M. Gnedin, Diagnostika-M Company, Moscow, Russia D. I. Galkin, Scientific and Training Center for Welding and Control at the Bauman Moscow State Technical University, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A concept of methodological recommendations for estimating service life for designing, fabricating, and appraising safety of industrial equipment is proposed. The degree of wear, which characterizes the change in safety (strength) margins of components, parts, and units (assemblies) in the process of their operation, is taken as the generalized parameter. The concept solves the problem of estimating the full, residual, calculated (permissible) service life of industrial equipment that does not have backup (standby) components. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9552-0 Authors A. P. Cherepanov, Scientific-Diagnostic Center of Angarsk Petrochemical Company, Angarsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A mathematical model is proposed for the cooling of a smooth extruded polymeric pipe; this model makes it possible to determine the temperature field of the pipe without use of the coefficient of heat transfer from its surface to the cooling water. Results of numerical modeling are obtained for limiting alternate schemes of convective cooling of the pipe in a water bath, when the water within the bath is stationary, and moving together with the pipe. The model makes it possible to determine the length of the cooling bath to achieve the required temperature distribution throughout the wall thickness of the pipe, or (for a bath of a certain length) calculate the temperature field over the wall thickness of the pipe where it emerges from the bath. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9538-y Authors I. O. Mikulenok, National Technical University of Ukraine, Kiev Polytechnic Institute, Kiev, Ukraine Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Results are presented for metallographic analysis and mechanical tests for gas pipeline metal specimens, having operated for about fifteen years. Recommendations are given for further use on the basis of verification studies. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9563-x Authors V. N. Gadalov, South-West State University, Kursk, Russia D. N. Romanenko, South-West State University, Kursk, Russia L. A. Rybakova, South-West State University, Kursk, Russia A. V. Trepakov, South-West State University, Kursk, Russia L. A. Efimenko, Gubkin Russian State University of Oil and Gas, Moscow, Russia S. B. Grigoriev, Gazprom Tsentrremont Company, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Comparative analysis is provided for two-layer steels prepared by different methods. A method is proposed for thermal cycling tests as an evaluation of the operational reliability of equipment made from two-layer steels. Content Type Journal Article Category Materials Science and Corrosion Protection Pages 1-9 DOI 10.1007/s10556-012-9561-z Authors I. G. Rodionova, Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet), Moscow, Russia O. N. Baklanova, Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet), Moscow, Russia A. V. Amezhnov, Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet), Moscow, Russia T. I. Strizhakova, Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet), Moscow, Russia A. A. Pavlov, Institute of Bimetallic Alloys, 17 Borisa Galushkina St., 129301 Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Recommendations are given for selection of parameters for radiographic monitoring of process pipelines, a nomogram is presented for determination of the minimum distance between the source of radiation and the object being monitored, and the minimum number of exposures in accordance with GOST 7512–82, scheme 5d. An example is cited for the drawing of conclusions from results of radiographic monitoring when evaluating the quality of a welded joint in a pipeline in accordance with PB 03-585-03. Content Type Journal Article Pages 1-5 DOI 10.1007/s10556-012-9560-0 Authors M. M. Gnedin, Moscow State Institute of Radio Engineering, Electronics, and Automation (MIREA, Technical University), Moscow, Russia E. Yu. Usachev, Moscow State Institute of Radio Engineering, Electronics, and Automation (MIREA, Technical University), Moscow, Russia D. I. Galkin, Scientific and Training Center at the Bauman Moscow State Technical University, Moscow, Russia N. A. Bystrova, Scientific and Training Center at the Bauman Moscow State Technical University, Moscow, Russia D. A. Akhrimenko, Stroimarket Company, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Under conditions precluding induced removal of corrosion products from local damage, the effect of movement of sodium chloride solution on pitting corrosion of stainless steel at 20–80°C is considered. In order to create controllable hydrodynamic conditions, a device is used based on a system of two disks, one of which (working specimen) is stationary, and rotation of the second disk provides solution movement. It is shown that with an increase in medium movement rate the occurrence of pitting is made more difficult. The greatest effect on a change in hydrodynamic conditions is observed in dilute solutions. The degree of the activating effect of temperature on pitting formation may be markedly different (especially in dilute chloride solutions) in relation to the temperature level of the system. Content Type Journal Article Category Materials Science and Corrosion Protection Pages 1-8 DOI 10.1007/s10556-012-9540-4 Authors V. S Pakhomov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia V. V. Makartsev, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: In high-temperature reactors fabricated from alloy steels with an austenitic facing, contact pressure develops when the wall of the cylindrical shell is heated above 200°C in the zone where the built-up layer abuts the base metal due to the difference in their coefficients of linear expansion. A procedure is proposed for analysis of the contact pressure and evaluation of the cyclic strength of the housing and facing with consideration of the internal pressure and pressure within the zone of contact. As an example, results are presented for an R-201 reactor in a plant used for hydrotreating fuels. Calculations indicated that the allowable number of cycles for the facing is an order lower than that for the housing of the reactor. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9545-z Authors V. G. Tatarinov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia S. G. Tatarinova, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: This paper presents formulas for the optimal yield radius and self-loading pressure for which the stresses in the boundary layer separating the plastic and elastic regions of the pipe’s section are minimal under the operating conditions. Content Type Journal Article Pages 1-3 DOI 10.1007/s10556-012-9544-0 Authors O. E. Kabanova, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Approximation temperature dependencies of the heat capacities of the following gases are proposed in this paper based on thermodynamic analyses of the equilibrium compositions of dissociated components of fuel-combustion products: CO 2 , H 2 O, O 2 , SO 2 , N 2 , and air. The analyses were performed over a broad range of temperatures and pressures. The formulas derived permit calculation of the theoretical combustion temperature of various fuels and organic wastes with consideration of dissociation of the reaction products. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9539-x Authors A. L. Suris, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: This article examines the prerequisites for applying acoustic-emission method, in conjunction with kinetic indentation (penetration), for assessing the degree of damage to the metal of technological pipelines operating under low-cycle loading. The proposed criterion helps detect metal damage to a level above 60–70%. Content Type Journal Article Pages 1-3 DOI 10.1007/s10556-012-9549-8 Authors V. A. Ananievskii, Research Engineering Center of Fittings Manufacture, Kiev, Ukraine S. V. Lugovskoi L. V. Kravchuk Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The problems of cleaning pipe interior are reviewed. The main problem is jamming of the cleaning scraper, which may cause complete blocking of the pipe. The causes of occurrence of this problem and the means of its prevention are described. The salient merits and demerits of new designs for pipe cleaning currently being developed both abroad and in our country are evaluated. Content Type Journal Article Category Technical Diagnostics and Innovative Solutions in the Field of Technical Diagnostics Pages 1-4 DOI 10.1007/s10556-012-9548-9 Authors D. V. Aksenov, NTTs Neftegazodiagnostika Scientific and Technical Center, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The article considers reasons for the use of acoustic emission together with kinetic identification for estimating the degree of production pipeline metal damage, operating under low-cycle loading conditions. A proposed criterion makes it possible to detect achievement of a level of metal damage above 60–70%. Content Type Journal Article Pages 1-2 DOI 10.1007/s10556-012-9551-1 Authors G. A. Bigus, Scientific and Training Center for Welding and Control at the Bauman Moscow State Technical University, Moscow, Russia N. A. Bystrova, Scientific and Training Center for Welding and Control at the Bauman Moscow State Technical University, Moscow, Russia D. I. Galkin, Scientific and Training Center for Welding and Control at the Bauman Moscow State Technical University, Moscow, Russia A. A. Travkin, Scientific and Training Center for Welding and Control at the Bauman Moscow State Technical University, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A method of evaluating remaining service life for structures after a certain period of service is proposed on the basis of investigations of plasticity loss. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9546-y Authors A. M. Bolshakov, Larionov Institute of Physico-Technical Problems of the North, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Sakha Republic, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Non-isothermal mixing is studied in the barrel mixer of an extruder by the method of numerical modeling. The distribution of the travel speeds of the polymer melt that flows within the effective channels of the drum mixer under various temperature and deformation reworking conditions, as well as the structural characteristics of the mixer is established as a result of numerical investigations. Content Type Journal Article Category Research, Design, Calculations, and Operating Experience Pages 1-7 DOI 10.1007/s10556-012-9553-z Authors A. S. Sakharov, National Technical University of Ukraine – Kiev Polytechnic Institute (NTUU KPI), Kiev, Ukraine A. E. Kolosov, National Technical University of Ukraine – Kiev Polytechnic Institute (NTUU KPI), Kiev, Ukraine A. L. Sokolskii, National Technical University of Ukraine – Kiev Polytechnic Institute (NTUU KPI), Kiev, Ukraine V. I. Sivetskii, National Technical University of Ukraine – Kiev Polytechnic Institute (NTUU KPI), Kiev, Ukraine Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The pattern of the radial deformation of an annular component (gasket) is examined during its axial loading. It is demonstrated that as the gasket deforms axially, its outside radius increases, and its inside radius remains essentially constant. Working expressions are derived for determination of the neutral radius, the increase in the outside radius, and the change in the inside radius during axial deformation of the gasket. A device was built to verify the working relationships obtained, and experiments substantiating their practical applicability were conducted. It is recommended that information on tolerances for the diametrical dimensions of the gaskets and annular groves for their seating be incorporated in regulatory materials. Content Type Journal Article Pages 1-5 DOI 10.1007/s10556-012-9547-x Authors V. D. Prodan, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia G. V. Bozhko, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia A. V. Vasiliev, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A numerical modeling method is used to study conditions and parameters for effective preparation of extra pure hydrogen from methane conversion products within a high-temperature converter system, i.e., membrane equipment using two catalysts (CO and CH 4 conversion) simultaneously within a high-pressure vessel. Sufficiently complete use is achieved for the starting steam and methane mixture for preparation of high purity hydrogen with the minimum possible content of H 2 , CO, and CH 4 impurities in the discharge gas. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9558-7 Authors A. B. Vandyshev, Institute of Mechanical Engineering, Ural Branch, Russian Academy of Sciences (IMASh UrO RAN), Ekaterinburg, Russia V. A. Kulikov, Institute of Mechanical Engineering, Ural Branch, Russian Academy of Sciences (IMASh UrO RAN), Ekaterinburg, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The aim of the work is development of a heat pump using the heat of air compressor cooling water 313 K (40°C) in order to prepare a high-temperature stream of nitrogen 453 K (180°C) passing into regeneration of absorbers of a combined cleaning unit within air-fractionation units. It is shown that use of low-potential heat in industrial installations, as calculations demonstrate, justifies itself, and a further favorable effect is governed by the use of improved compressor equipment and expenditure on electrical energy, whose cost increases continuously. Content Type Journal Article Category Cryogenic Engineering, Production and use of Industrial Gases, Vacuum Engineering Pages 1-6 DOI 10.1007/s10556-012-9557-8 Authors E. A. Fetisova, Bauman Moscow State Technical University, Moscow, Russia A. A. Zherdev, Bauman Moscow State Technical University, Moscow, Russia A. I. Smorodin, Bauman Moscow State Technical University, Moscow, Russia A. N. Sychugov, Bauman Moscow State Technical University, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A method of calculating the remaining service life of piston compressors on the basis of the following two criteria is examined: the wear of rubbing parts, and cyclic longevity. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9543-1 Authors Ya. Yu. Shlenskii, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia V. V. Klimov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia B. N. Dudko, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia G. Yu. Rozhemberskaya, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia A. A. Sosnin, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Yu. S. Tarakanova, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Features of thermal breakdown and burning of a nanocomposite based on polypropylene and multiwalled carbon nanotubes are studied. A kinetic model is proposed on the basis on the TGA results, taking account of the diffusion nature of polypropylene nanocomposite thermal breakdown. The main parameters of nanocomposite inflammability are determined using a cone-calorimeter. Content Type Journal Article Pages 1-10 DOI 10.1007/s10556-012-9541-3 Authors V. G. Sister, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia E. M. Ivannikova, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia S. M. Lomakin, Emmanuel Institute of Biochemical Physics (IBKhF RAN), Moscow, Russia A. I. Yamchuk, NIK Company, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A procedure and results are provided for accelerated corrosion testing of zinc, cadmium, and copper coatings for gas-pumping unit and gas turbine power station metal components. The best retention, climatic and corrosion resistance is demonstrated by zinc coating. According to test results, electroplated coatings are recommended for protection over a prolonged (up to 25 years) operating life. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9562-y Authors V. V. Khmelyov, Iskra Scientific and Production Association (NPO Iskra), Perm, Russia S. N. Kozhevnikova, Iskra Scientific and Production Association (NPO Iskra), Perm, Russia Yu. N. Novosyolov, Iskra Scientific and Production Association (NPO Iskra), Perm, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: This paper presents a procedure for calculation of the work of external forces during the molding of combined multi-component articles formed from disperse materials in a closed die, which includes calculation of the work in overcoming contact-friction forces, and the work required to deform the material in the die, as well as calculation of the effectiveness of the energy consumed by the drive of the hydraulic press. Diagrams of the molding pressure of certain disperse materials versus the working throw of the upper die are presented, as well as experimental data. Content Type Journal Article Pages 1-9 DOI 10.1007/s10556-012-9554-y Authors V. Yu. Arkhangelskii, Federal Scientific and Production Center – Research Institute of Applied Chemistry (FNPTs NIIPKh), Sergiev Posad, Moscow Oblast, Russia S. V. Teplishchev, Federal Scientific and Production Center – Research Institute of Applied Chemistry (FNPTs NIIPKh), Sergiev Posad, Moscow Oblast, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Potential advantages are given for high-temperature cleaning by filtration. Prospective filter constructions and types of filter materials are determined. In addition, problems restricting the use of high-temperature filtration are noted. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9556-9 Authors R. Schulz, Duisburg-Essen University, Duisburg, Germany S. Yu. Panov, Voronezh State Technological Academy, Voronezh, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A new nondestructive monitoring method is considered, i.e., a metal magnetic memory method, based on measuring the self-magnetization leakage field (SMLF) at the surface of test equipment. The method makes it possible to obtain the stressed state without considering structural changes. The magnetic memory effect is applied to the working areas of applied maximum loads during testing. The metal magnetic memory method does not have disadvantages compared with other monitoring methods, and makes it possible to recognize elastic deformation, the determine the plane of metal layer sliding, and also the area of fatigue crack development. Considering labor expenditure, it is possible to say that the metal magnetic memory method belongs to rapid methods. The main aim of the method is determination of the most critical areas and equipment having stress concentration. Content Type Journal Article Category Safety, Diagnosis, and Repair Pages 1-3 DOI 10.1007/s10556-012-9559-6 Authors A. A. Dubov, Energodiagnostika Company, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Results of hydrodynamic analysis of vessels with a dual-tier open turbine mixer and four baffle partitions are presented. The velocity distributions obtained in these vessels are in good agreement with qualitative patterns known in the literature. A relationship is proposed for determination of the power factor in these vessels as a function of the diameter of the mixers and the distance between them. The effect of the distances between mixers and their diameter on the dissipation rate of kinetic energy is indicated. Content Type Journal Article Pages 1-6 DOI 10.1007/s10556-012-9555-x Authors A. V. Klinov, Kasan National Research Technological University, Kazan, Russia A. G. Mukhametzyanova, Kasan National Research Technological University, Kazan, Russia L. R. Minibaeva, Kasan National Research Technological University, Kazan, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: An effective tube with a diameter of 25.6 mm possessed terminal sections of smaller diameters (16.8 and 21.4 mm). When a steady film flow is realized in the terminal sections, only nonsteady regimes are possible primarily in the basic median section (pulsed regime or nonsteady film). Pressure losses related to the pulsed regime are determined by computational means using the principle of additivity on the basis of measured values of total pressure losses in the variable-diameter tube. Content Type Journal Article Category Research, Design, Calculations, and Operating Experience Pages 1-8 DOI 10.1007/s10556-012-9537-z Authors V. N. Novozhilov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia D. A. Baranov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: This paper codifies experience acquired with strength analysis of the most complex and critical components of a plant producing high-pressure polyethylene – self-loaded pipes and elbows of the reactor, heaters, and coolers. Content Type Journal Article Pages 1-4 DOI 10.1007/s10556-012-9542-2 Authors Ya. M. Vitorskii, Defort Company, St. Petersburg, Russia V. Ya. Dmitriev, Defort Company, St. Petersburg, Russia A. G. Smirnova, Defort Company, St. Petersburg, Russia S. G. Komaishko, Defort Company, St. Petersburg, Russia M. V. Moisei, Defort Company, St. Petersburg, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The unreliability of AE signal generation within the wall of a steel object in any Lamb wave mode and the unrepresentative nature of its properties are demonstrated. Results are presented for experiments on whose basis it is concluded that under hydraulic testing conditions for objects absence of AE signals at a receiving point does not mean absence of their emission by developing defects, and for a number of reasons it is impossible to provide reliable calibration of AE equipment within an object filled with water. Content Type Journal Article Pages 710-714 DOI 10.1007/s10556-012-9536-0 Authors A. A. Selskii, Scientific and Training Center RTS (NOU NUTs RTS), Krasnoyarsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The innovative project Magistral is to be terminated in 2011. The development, certification, and mastering of the production of low-carbon steels of strength classes to Kh100 has been completed for pipes of arterial lines. A procedure and quality criteria are developed, and full-scale life tests of an experimental batch of tubes performed on a bench. The necessity of these tests is demonstrated experimentally. Correspondence of the steels developed to modern requirements for strength characteristics is verified. Content Type Journal Article Pages 668-673 DOI 10.1007/s10556-012-9529-z Authors A. V. Ilyin, Prometey Central Research Institute of Structural Materials, St. Petersburg, Russia A. K. Vasiliev, Prometey Central Research Institute of Structural Materials, St. Petersburg, Russia O. V. Glibenko, Prometey Central Research Institute of Structural Materials, St. Petersburg, Russia K. E. Sadkin, Prometey Central Research Institute of Structural Materials, St. Petersburg, Russia V. Yu. Filin, Prometey Central Research Institute of Structural Materials, St. Petersburg, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The bulk flow rate of a gas–air mixture entering a dust-collection system (bag filter) is calculated on the basis of experimental data on the composition of effluent from a steel-smelting dc arc furnace. Content Type Journal Article Pages 624-626 DOI 10.1007/s10556-012-9521-7 Authors A. Yu. Valdberg, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia M. Ya. Kaplun, EKTA Scientific-Technical Firm, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The viewpoint of one of the developers of the collection of national standards GOST R 52857.1–2007 – GOST R 52857.12–2007 “Vessels and Apparatuses. Norms and Methods of Strength Calculation” on the problems of support for standards over their life cycle is elucidated and recommendations are offered on the definition of some basic terms used in the normative documents. Content Type Journal Article Pages 679-682 DOI 10.1007/s10556-012-9531-5 Authors I. V. Sukharnikova, Research and Design Institute of Chemical Engineering (NIIkhimmash), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Hydrochloric acid solutions, particularly at elevated temperature, are very corrosive media and cause rapid corrosion of the majority of metals, steels, and alloys, and also chemical breakdown of many nonmetallic materials. Under laboratory conditions in 2% hydrochloric acid solution at 20–25°C the corrosion resistance is studied for specimens of steels 12Kh18N10T, 10Kh17N13M3T, alloy 06KhN28MDT, and titanium VT1-0, and also in 20% hydrochloric acid solution at 95–100°C for specimens of nickel-molybdenum alloys N70MFV-VI (EP814A-VI), alloy N65M-VI (EP982), titanium-palladium alloy 4200 (Ti–0.2%Pd), zirconium, and tantalum, as well as nonmetallic materials, i.e., fluoroplastic, glass, porcelain, faolite, graphite, polypropylene, cross-linked polyethylene, acrylic plastic, silicon carbide composite, and vinyl plastic. The test duration is 1000 h. In 2% hydrochloric acid solution at 20–25°C high resistance is exhibited by titanium VT1-0, alloy 06KhN28MDT, and corrosion-resistant chromium-nickel-molybdenum alloy 10Kh17N13M3T, from which it is possible to manufacture equipment and engineering pipelines in contact with low-concentration hydrochloric acid solutions operating at ambient temperature. In hydrochloric acid solution with a weight concentration of 20% at 95–100°C high resistance to uniform and local corrosion is exhibited by zirconium and tantalum, and the rate of corrosion penetration for alloy N70MFV-VI (EP814A) is 0.447 mm/yr, for alloy KhN63MB it is 1.441 mm/yr, for alloy KhN65MV it is 13.931 mm/yr, and for alloy 4200 it is 3.403 mm/yr. Of the nonmetallic materials, alongside fluoroplastic, high chemical resistance is exhibited by polypropylene, and cross-linked polyethylene. Content Type Journal Article Pages 632-634 DOI 10.1007/s10556-012-9523-5 Authors A. S. Derbyshev, Sverdlovskii Research and Design Institute of Chemical Machine Building (SverdNIIkhimmash), Ekaterinberg, Russia A. N. Suriev, Sverdlovskii Research and Design Institute of Chemical Machine Building (SverdNIIkhimmash), Ekaterinberg, Russia A. N. Efimov, Sverdlovskii Research and Design Institute of Chemical Machine Building (SverdNIIkhimmash), Ekaterinberg, Russia I. A. Beresneva, Sverdlovskii Research and Design Institute of Chemical Machine Building (SverdNIIkhimmash), Ekaterinberg, Russia F. A. Ladygin, Sverdlovskii Research and Design Institute of Chemical Machine Building (SverdNIIkhimmash), Ekaterinberg, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The energy of interaction of particles with dissimilar wettability (quartz, coal, and pyrite) and air bubbles in neutral and alkaline media are analyzed on the basis of the extended DLVO theory to assess the floatability of these minerals. It is established that for hydrophilic materials such as quartz, the formation of particle-bubble complexes (at both the primary, and also secondary potential minima) is impossible owing to existence of a high potential barrier and weak force of attraction. For coal and pyrite, the pattern of the potential curves (energy of interaction versus distance between particle and bubble) will depend largely on the pH of the medium: an increase in this parameter will lead to manifestation of a potential barrier (when pH ≈ 7.8 for coal, and pH ≈ 9.8 for pyrite), and to an increase in its height. This causes unstable flotation of the coal and pyrite even for relatively small changes in the surface potential, pH, and ionic composition of the medium. An increase in the effectiveness of flotation benefication of coal and pyrite can be achieved by hydrophobization of the minerals by reagents-collectors: the wetting angle is increased from 50–80° to 90–100°. In turn, the potential barrier is eliminated, the effect of the pH of the medium is neutralized, and stable attachment of particles of the minerals under consideration to air bubbles is ensured in the region of the secondary potential minimum. Analysis of the forces of particle-bubble interaction made it possible to determine the forces of adhesion and detachment. Computed values of the forces in question for an air-bubble/hydrophobized-pyrite-particles system are comparable to experimental values of the indicated forces for a similar system. Content Type Journal Article Pages 580-586 DOI 10.1007/s10556-012-9513-7 Authors V. E. Vigdergauz, Research Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences (IPKON RAN), Moscow, Russia G. Yu. Golberg, Research Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences (IPKON RAN), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A method is proposed for evaluation of the floatability of minerals. It consists in determination of the possibility that mineral particles with dissimilar levels of surface characteristics will attach to air bubbles on the basis of analysis of the potential energy of bubble–particle interaction. The extended DLVO theory, which permits quantitative estimation of the aggregate stability of disperse systems, is used for the case in question. Content Type Journal Article Category Research, Design, Calculations, and Operating Experience Pages 575-579 DOI 10.1007/s10556-012-9512-8 Authors V. E. Vigdergauz, Research Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences (IPKON RAN), Moscow, Russia G. Yu. Golberg, Research Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences (IPKON RAN), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Use of the finite-element method for temperature and strength analyses of hydrocracking reactors is described for the purpose of defining the optimal dimensions of the hot cell. Use of the software package ANSYS 12.0 is examined for design of a parametric finite-element model of the reactor, which includes basic design elements, and execution of required analyses. Criteria are established for evaluation of the results obtained. Content Type Journal Article Pages 662-665 DOI 10.1007/s10556-012-9527-1 Authors D. A. Gribov, Petrokhim Engineering Company, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Research has established that operational damage of pipeline systems for oil product processing (PSOP) occurs due to turbulent flow of the main product, caused by structural features, which leads to cavitation in a localized area under conditions favorable for development of cavitation-erosion embrittlement and failure. Continuous monitoring of the wall thickness of critical areas of branch pipes and reducers, and restoration of them with high quality materials makes it possible to exclude critical situations and improve their corrosion resistance. Content Type Journal Article Pages 635-642 DOI 10.1007/s10556-012-9524-4 Authors V. I. Muraviov, Komsomolsk-on-Amur State Technical University, Komsomolsk-on-Amur, Russia P. V. Bakhmatov, Komsomolsk-on-Amur State Technical University, Komsomolsk-on-Amur, Russia A. V. Frolov, Komsomolsk-on-Amur State Technical University, Komsomolsk-on-Amur, Russia A. A. Evstigneev, Komsomolsk-on-Amur State Technical University, Komsomolsk-on-Amur, Russia A. V. Butin, Komsomolsk-on-Amur Oil Processing Plant, Komsomolsk-on-Amur, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The working tube of diameter 25.6 mm had terminal portions of smaller diameters (16.8 and 21.4 mm). When a steady film flow is realized in the terminal portions, only unsteady conditions (flooding or unsteady film) are possible in the main middle portion. A diagram of flow modes (falldown, pickup, fluctuating flow, unsteady film flow, steady film flow, etc.) is constructed in phase (water–air) flow rate coordinates. Entrainment boundary, incomplete wetting, and types of wave modes are noted. Content Type Journal Article Pages 597-602 DOI 10.1007/s10556-012-9516-4 Authors V. N. Novozhilov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia D. A. Baranov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The current problems of designing equipment operating under pressure for chemical, petrochemical, oil refining, and other branches of the industry and possible ways to solve them are discussed. The potential of IrkutskNIIkhimmash in developing designs of new equipment operating under pressures up to 130 MPa and of the research base of the institute is shown. The need for joining efforts of equipment planners, designers, manufacturers, and users in creating new high-efficiency equipment and for following a common technical policy for developing and actualizing standards and harmonizing them with international standards as well as for centralized publication of European and American (ASME) standards in Russia and their translation into Russian is emphasized. Content Type Journal Article Pages 645-650 DOI 10.1007/s10556-012-9525-3 Authors A. M. Kuznetsov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Transfer pipelines are developed for the supply of feedstock from a furnace to a fractionating tower. A feature of the development is absence of temperature compensators and preliminary loading of pipelines. In order to monitor stresses that may arise in the area of pipeline setting into a K-11 tower, and their movement, a comprehensive diagnostic monitoring system has been developed with the possibility of remote control, inspection and analysis of the monitored parameters. Content Type Journal Article Pages 696-701 DOI 10.1007/s10556-012-9534-2 Authors B. F. Yuraido, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia V. K. Bakman, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia E. A. Kuzmin, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia A. A. Pavlov, Refinery of the Angarsk Petrochemical Company (NPZ ANKhK), Angarsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Results are provided for comprehensive diagnosis of failed combustion heater components. The reasons for component damage are studied and analyzed. Content Type Journal Article Pages 702-709 DOI 10.1007/s10556-012-9535-1 Authors N. V. Barinova, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia A. V. Turaev, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia A. P. Korchagin, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A method is proposed for calculating heat exchange in the working zone of vertical and horizontal types of flaring devices (torches). The method is based on joint numerical solution of several associated problems, such as calculation of the length and dynamics of burning of a free flare, complex heat exchange and radiation characteristics in a multizone conical calculated region that approximates a flare (torch), local radiative heat flows from a randomly positioned multizone torch to elemental areas of a horizontal surface exposed to radiation, etc. The calculation method is approved on the example of a vertical gas field torch. Content Type Journal Article Pages 591-596 DOI 10.1007/s10556-012-9515-5 Authors O. Yu. Kuleshov, Engels Technological Institute, Branch of Saratov State Technical University, Engels, Russia V. M. Sedyolkin, Engels Technological Institute, Branch of Saratov State Technical University, Engels, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A design of an angle shutoff valve assembled by the group assembly (subassembly) method is proposed; an advanced method of molding (shaping) sealing surfaces of various types of detachable joints by plastic deformation is described; the results of simulation of crumpling of the ring projection (asperity) before molding of sealing band are reported; the results of full-scale experimental investigations, which confirmed the basic results of computer simulation using ANSYS program (software), are cited; the sealing capacity of cone–cone and plane–plane type of threaded metal-to-metal joints, whose sealing surfaces were produced by plastic deformation, is determined; the effectiveness of sealing pairs, whose sealing surfaces were formed by plastic deformation, is shown; ways of solving technological problems faced in producing valve parts are indicated; conclusions are formulated. Content Type Journal Article Pages 683-686 DOI 10.1007/s10556-012-9532-4 Authors G. D. Gridin, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A mathematical model is proposed for the production of biogas by refinement of organic wastes in bioreactor units. The model developed makes it possible to control the production of biogas, and also determine the structurally optimal and process parameters of the unit. Content Type Journal Article Pages 613-618 DOI 10.1007/s10556-012-9519-1 Authors L. A. Kushchev, Shukhov Belgorod State Technological University, Belgorod, Russia G. L. Okuneva, Shukhov Belgorod State Technological University, Belgorod, Russia D. Yu. Suslov, Shukhov Belgorod State Technological University, Belgorod, Russia A. A. Gravin, Tambov State Technical University, Tambov, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The mutual effect of peat and petroleum-containing wastes on the degree of conversion of their mixture during pyrolysis, and also the effect of bentonite clay on pyrolysis of the mixture are investigated. The temperature of the process and catalyst content were determined in the course of previous investigations. A sample mixture of peat and petroleum sludge in a 1:1 ratio was used for the investigation. The content of petroleum products in the petroleum sludge amounted to 20% of the mass of the sludge, the catalyst content was 5% of the mass of the mixture, the process was carried out in a nitrogen atmosphere, and the temperature of the process was 500°C. During the course of the experiments, the masses of the solid, liquid, and gaseous products were determined, and the gaseous mixture of pyrolysis products was also subjected to qualitative and quantitative analysis. The gaseous products were analyzed using gas chromatography in accordance with a method outlined in an external standard. Content Type Journal Article Category Industrial Ecology Pages 609-612 DOI 10.1007/s10556-012-9518-2 Authors V. G. Sister, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia E. M. Ivannikova, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia E. M. Sulman, Tver State Technical University (TGTU), Tver, Russia Yu. V. Lugovoi, Tver State Technical University (TGTU), Tver, Russia Yu. Yu. Kosivtsov, Tver State Technical University (TGTU), Tver, Russia K. V. Chalov, Tver State Technical University (TGTU), Tver, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: This article examines the problems of developing a procedure for measuring weight proportion of coke deposits on spent adsorbents. Laboratory research substantiating the requirements for a range of measurements is performed, and the logarithm for performing the measurements and the results of determination of the content of coke deposits from industrial units of a gas processing plant are given. Content Type Journal Article Pages 587-590 DOI 10.1007/s10556-012-9514-6 Authors E. M. Mukhametova, Volga-Ural Research, Planning, and Design Institute of the Gas Industry (VolgoUralNIPIgaz), Orenburg, Russia O. A. Kalimeneva, Volga-Ural Research, Planning, and Design Institute of the Gas Industry (VolgoUralNIPIgaz), Orenburg, Russia G. V. Kirillova, Volga-Ural Research, Planning, and Design Institute of the Gas Industry (VolgoUralNIPIgaz), Orenburg, Russia G. F. Murzakaeva, Volga-Ural Research, Planning, and Design Institute of the Gas Industry (VolgoUralNIPIgaz), Orenburg, Russia A. P. Sorokina, Volga-Ural Research, Planning, and Design Institute of the Gas Industry (VolgoUralNIPIgaz), Orenburg, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Within the chemical industry, and also in some other branches, there is extensive use of sulfuric acid solutions of different concentration and corrosiveness, containing metal ions of varied valency (Cu 2+ , Fe 3+ , Ni 2+ , Cr 3+ , etc.), which appear in a medium, for example, as a result of equipment corrosion, etc. In sulfuric acid media, corrosion can be uniform or local, i.e., pitting, spot corrosion, intercrystalline corrosion (ICC). Whereas uniform corrosion develops as a gradual reduction in the thickness of an original vessel, equipment, and machine component elements, whose corrosion rate may be calculated previously from existing data for the corrosion resistance of structural materials in specific production media, it is almost impossible to predict ICC development, and therefore in many cases it leads to sudden structural breakdown. In order to predict corrosion, it is recommended to use for article manufacture corrosion-resistant steels and alloys with alloying providing in sulfuric acid solutions resistance to uniform and local corrosion with the required heat treatment and monitoring for ICC resistance. Content Type Journal Article Category Materials Science and Corrosion Protection Pages 627-631 DOI 10.1007/s10556-012-9522-6 Authors A. S. Zholud, Sverdlovskii Research and Design Institute of Chemical Machine Building (SverdNIIkhimmash), Ekaterinberg, Russia A. S. Derbyshev, Sverdlovskii Research and Design Institute of Chemical Machine Building (SverdNIIkhimmash), Ekaterinberg, Russia Yu. N. Dulepov, Sverdlovskii Research and Design Institute of Chemical Machine Building (SverdNIIkhimmash), Ekaterinberg, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: A method based on determination of integral values of local pressure losses associated with potential flow velocity of a fluid in a smooth slot seal channel is proposed for calculating radial forces in slot seals in a case where the axes of the shaft and housing bushing of the seal assembly are eccentric. It differs from the well-known Lomakin calculation method based on differential calculation of local losses in terms of the flow rate of the fluid through the seal assembly. The proposed method can be used to simplify solution of the problem and to enhance the accuracy of calculations. Content Type Journal Article Category Complementary Products and Devices Pages 603-608 DOI 10.1007/s10556-012-9517-3 Authors V. A. Melnik, VIGO SMIT Company, Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Complex investigations of the strength of an oil separator were performed to establish causes of its sudden failure. While under constant monitoring by the method of acoustic emission and ultrasound monitoring, the separator fitted with an extensometer was subjected to 100 cycles each under a working pressure of 29 MPa and a computed pressure of 32.5 MPa, and 1000 cycles under a test pressure of 42.5 MPa, and 700 cycles with the pressure increased from 80 to 90 MPa without formation of visible cracks. Failure of the separator occurred with increasing pressure cycling up to 112 MPa. Residual hoop strains after failure did not exceed 3%. Content Type Journal Article Category Design, Strength Analyses, Fabrication and Certification of Pressure Equipment Pages 651-661 DOI 10.1007/s10556-012-9526-2 Authors P. G. Pimshtein, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia S. P. Bykov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia K. A. Kuznetsov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia A. P. Korchagin, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia V. G. Tatarinov, Irkutsk Research and Design Institute of Chemical and Petrochemical Engineering (IrkutskNIIkhimmash), Irkutsk, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The possibility, in principle, of raising the octane number of the investigated gasolines by ultrasonic action using a variety of catalysts as well as the possibility of subsequent prolonged storage of the ultrasound-treated gasoline without loss of its performance characteristics is examined. Content Type Journal Article Pages 1-5 DOI 10.1007/s10556-012-9602-7 Authors E. S. Gridneva, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia N. A. Bulychev, Lebedev Physics Institute, Russian Academy of Sciences (FIAN), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Correctly selected gasket width for forced-type detachable sealed joint is one of the conditions of leak-tightness of the joint under the operating conditions at minimal material content of the joint itself. In this article, the calculation of the initial gasket width has been made more precise taking account of the real nature of radial deformation of the gasket upon axial loading. The calculating expression obtained has been used to determine the initial appropriate width of the gasket. Experiments have been carried out to study the conditions of radial deformation of the gasket. The experimental and calculated results are virtually congruent. The data reported in this article help disclose the real nature of gasket deformation in flanged joint, which allows one to remove errors from the calculating expressions used, determine the allowance for reducing the material content without impairing the leak-tightness of the flanged joint and the strength of its constituent elements, and select a more optimal flanged joint design. Content Type Journal Article Category Complementary Products and Devices Pages 1-3 DOI 10.1007/s10556-012-9606-3 Authors V. D. Prodan, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia A. V. Vasiliev, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Problems relating to creation of an efficient ozone generator for use in socially important facilities are discussed. It is demonstrated that an ozone generator with barrier electric discharge most fully meets the requirements placed on the equipment and materials used for protecting socially important facilities. Content Type Journal Article Category Cryogenic Engineering, Production and Use of Industrial Gases, Vacuum Engineering Pages 1-5 DOI 10.1007/s10556-012-9594-3 Authors A. I. Smorodin, Bauman Moscow State Technical University, Moscow, Russia E. I. Borzenko, St. Petersburg State University of Low-Temperature and Food Technologies, St. Petersburg, Russia D. A. Tarabakin, St. Petersburg State University of Low-Temperature and Food Technologies, St. Petersburg, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Kinetic features are studied for biocatalytic conversion of a mixture of plant material and organic waste of plant origin. It is established that free amino acid formation in the course of biocatalytic conversion is described with sufficient accuracy by equations of formal chemical kinetics, and growth of microbial population is described by a classical Mono equation. Analysis of results in the course of kinetic simulation makes it possible to draw a conclusion about the complexity and multiplicity of free amino acid formation mechanisms, and also to carry out a series of laboratory tests for biocatalytic conversion. Content Type Journal Article Category Industrial Ecology Pages 1-9 DOI 10.1007/s10556-012-9607-2 Authors V. G. Sister, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia E. M. Ivannikova, NIK Company, Moscow, Russia A. I. Yamchuk, NIK Company, Moscow, Russia V. P. Molchanov, High-Tech Production Company (Naukoemkoe Proizvodstvo), Tver, Russia V. Yu. Doluda, High-Tech Production Company (Naukoemkoe Proizvodstvo), Tver, Russia E. M. Sulman, Tver State University (TGU), Tver, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: The effect of laminar movement and heat transfer on the occurrence and development of stainless steel pitting is studied, using a device based on a system of two disks, one of which (working heat transfer specimen) is stationary, and rotation of a second disk providing solution movement. It is shown that the effect of heat transfer between metal and solution on pitting formation depends on metal temperature and heat flux direction. With a metal temperature of 50 °C under heat transfer conditions from metal to solution with an increase in temperature drop pitting corrosion potential increases, and under conditions of heat transfer from solution to metal it decreases. Presence of a heat flux in any direction through a metal–solution phase boundary facilitates the development of pits, but makes their repassivation difficult, and thereby deepens corrosion. Content Type Journal Article Category Materials Science and Corrosion Protection Pages 1-8 DOI 10.1007/s10556-012-9596-1 Authors V. S. Pakhomov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia V. V. Makartsev, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: Technology is considered for compaction of solid domestic waste into large blocks, excluding subsequent stitching and binding with wire, in order to avoid arbitrary breakage during lifting and transport operations. As a result of calculation and theoretical studies, and laboratory experiments for determining the dependence of side pressure coefficient, static and dynamic coefficients of external friction due to compaction pressure, and also calculation of limiting state parameters, it is shown that the stated aim is achieved with compaction of solid domestic waste with a conical punch. Model blocks are obtained by experiment that have adequate strength during shipment and disposal at a landfill site. Content Type Journal Article Category Industrial Ecology Pages 1-5 DOI 10.1007/s10556-012-9584-5 Authors A. M. Gonopolskii, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia L. S. Ermakova, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355

Description: This paper contains results of heat- and mass-exchange tests of blocks with a new design of short-layer packing of various heights. During the tests, the height of the tiers in the packing block was varied from 0.075 m to 0.3 m. The experiments were conducted within the reflux-density range q l  = 7.0–11.0 m 3 /(m 2 ⋅h). Results of the tests are presented in the form of graphical relationships between the Merkel number and the relative flow rate of air Me =  f (λ). Content Type Journal Article Category Research, Design, Calculations, and Operating Experience Pages 1-6 DOI 10.1007/s10556-012-9564-9 Authors N. P. Tsurikova, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia A. S. Pushnov, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia M. G. Lagutkin, Moscow State University of Engineering Ecology (MGUIE), Moscow, Russia V. I. Shishov, Vedeneev All-Russia Research Institute of Hydraulic Engineering (VNIIG), St. Petersburg, Russia Journal Chemical and Petroleum Engineering Online ISSN 1573-8329 Print ISSN 0009-2355