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  • Articles  (1,137)
  • 2010-2014  (1,137)
  • Chemical and Petroleum Engineering  (464)
  • 252465
  • 9395
  • Process Engineering, Biotechnology, Nutrition Technology  (1,137)
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  • Articles  (1,137)
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  • 1
    Publication Date: 2013-04-10
    Description: Helium Machinery Scientific-Production Association (NPO GELIIMASh) has developed and built the first domestic cryogenic transporting helium tank of the trademark TsTG-40/0.45 with a capacity of 40 m 3  − a key element of the logistic system of liquid helium delivery across Russia and to other countries. The TsTG-40/0.45 tank filled with liquid helium at the enterprise KRIOR was successfully tested at the Orenburg helium plant; the liquefying helium equipment was built at NPO GELIIMASh. The tank filled to the full capacity successfully passed the tests in conformity with the regulations of the Russian Marine Shipping Register, which provides the possibility of transporting liquefied helium all over the world on a par with the foreign-made helium tanks.
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  • 2
    Publication Date: 2013-04-10
    Description: Results are provided for experimental study of the deformation and failure mechanism for polymer materials with specimen uniaxial tension. An acoustic emission method is used for quantitative evaluation of the test process. Comparative analysis is provided for volumetric structural changes in specimens and corresponding acoustic emission elastic wave parameters for brittle and ductile materials.
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  • 3
    Publication Date: 2013-04-10
    Description: Information is provided about water electrolyzers, bifunctional systems, and hydrogen concentrators/compressors with a solid polymer electrolyte, and fields of application are considered. Membrane, electrode, and catalytic materials used within them are described.
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  • 4
    Publication Date: 2013-04-10
    Description: A physical analogy between processes of destruction of brittle bodies under the effect of impact action and the production of polymer granules with highly loosened outer layers upon discharge from the spinneret of a screw drying machine as a result of pressure release is used to construct a mathematical model.
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  • 5
    Publication Date: 2014-12-19
    Description: In recent years, “orientationless technology” based on a fundamentally new approach to directional wellbore drilling, which consists in proper selection of the drill string bottom-hole assembly, is gaining popularity in oil and gas fields of Kazakhstan. The proposed approach rests on the use of the key parameter, namely, the stabilizing length of the bottom part of the drill string, which determines the direction of the wellbore deviation.
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  • 6
    Publication Date: 2014-12-19
    Description: It is established that carbonate dissolution kinetics have diffusion and kinetic control, i.e., chemical reaction rate determines the transfer of calcium and carbonate ions into solution and diffusion processes determine the removal of ions into the depth of solution. Kinetics of calcite and siderite dissolution in hydrochloric acid solution in relation to medium pH are studied. Orders of dissolution reaction rate with respect to hydrogen ions n (H + ) = 0.6±0.1 are calculated.
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  • 7
    Publication Date: 2014-12-19
    Description: Carbon-carbon composite materials are tested in order to evaluate corrosion resistance in a hydrogen sulfide atmosphere and under conditions of primary oil refining in order to determine the possibility of their use under petrochemical production conditions.
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  • 8
    Publication Date: 2014-12-19
    Description: Effective and inexpensive sorbing materials can be manufactured from secondary (recycled) polymers, which will help solve problems of water cleaning and waste recycling. A technology of sorbing material manufacture from polyethylene terephthalate wastes for waste and surface water cleaning is described, and the physicochemical properties of the sorbent and the efficiency of water cleaning from oil products are studied.
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  • 9
    Publication Date: 2014-12-19
    Description: This article presents results of an experimental study of the drying kinetics of silica gel in a microwave electromagnetic field. The influence exerted by various process parameters on the drying kinetics under a microwave energy supply is ascertained on the basis of the experimental data. The substantial impact of the initial moisture content of the silica gel and the power supplied on the time required for moisture desorption is demonstrated. Use of a proposed energy criterion has made it possible to generalize experimental results obtained for different regime parameters.
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  • 10
    Publication Date: 2014-12-19
    Description: Anode-mechanical treatment of surfaces with dielectric inclusions is described. Basic theoretical laws of anode-mechanical treatment of metallic surfaces are given.
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  • 11
    Publication Date: 2012-02-08
    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
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  • 12
    Publication Date: 2012-02-08
    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
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  • 13
    Publication Date: 2012-02-08
    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
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  • 14
    Publication Date: 2012-02-08
    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
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  • 15
    Publication Date: 2012-09-25
    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
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  • 16
    Publication Date: 2012-09-25
    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
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  • 17
    Publication Date: 2012-09-22
    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
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  • 18
    Publication Date: 2012-09-22
    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
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  • 19
    Publication Date: 2012-09-18
    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
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  • 20
    Publication Date: 2012-09-18
    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
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  • 21
    Publication Date: 2012-09-18
    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
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  • 22
    Publication Date: 2012-09-18
    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
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  • 23
    Publication Date: 2012-09-18
    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
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  • 24
    Publication Date: 2012-09-18
    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
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  • 25
    Publication Date: 2012-09-18
    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
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  • 26
    Publication Date: 2012-09-18
    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
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  • 27
    Publication Date: 2012-09-18
    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
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  • 28
    Publication Date: 2012-09-18
    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
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  • 29
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    Publication Date: 2012-09-18
    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
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  • 30
    Publication Date: 2012-09-18
    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
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  • 31
    Publication Date: 2012-09-18
    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
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  • 32
    Publication Date: 2012-09-18
    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
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  • 33
    Publication Date: 2012-09-18
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 34
    Publication Date: 2012-09-18
    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
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  • 35
    Publication Date: 2012-09-18
    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
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  • 36
    Publication Date: 2012-09-18
    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
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  • 37
    Publication Date: 2012-05-31
    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
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  • 38
    Publication Date: 2012-05-31
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 39
    Publication Date: 2012-05-31
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 40
    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 41
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    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 42
    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 43
    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 44
    Publication Date: 2012-05-29
    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
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  • 45
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    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 46
    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 47
    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 48
    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 49
    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 50
    Publication Date: 2012-05-29
    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
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  • 51
    Publication Date: 2012-05-29
    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
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  • 52
    Publication Date: 2012-05-29
    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
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  • 53
    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 54
    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 55
    facet.materialart.
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    Publication Date: 2012-05-29
    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
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 56
    Publication Date: 2013-12-14
    Description: The possibility is considered of using multilayer carbon nanotubes prepared from brown Sphagnum for modifying epoxy resin. It is established that epoxy composite modified with carbon nanotubes makes it possible to provide improved composite material mechanical properties.
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  • 57
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    Publication Date: 2013-12-14
    Description: A method is examined for the synthesis of methanol in a three-phase system: a copper-zinc catalyst, a gaseous mixture of hydrogen and carbon oxides, and an inert hydrocarbon liquid. In the system, the liquid phase ensures isothermic synthesis, while a moving catalyst bed creates more complete contact between it and the gaseous mixture. Instead of the existing 4–4.5%, the output of methanol with one-time contact between the gaseous mixture and catalyst is increased to 15–20%. This allows for a reduction in power consumption, and simplification of the process required for the production of methanol, as well development of a small-scale portable plant.
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  • 58
    Publication Date: 2013-12-14
    Description: It is proposed that the structure of flows in concentration balancing reservoir apparatuses should be modeled by sequentially linked ideal mixing and displacement units. Based on experimental studies of laboratory apparatuses with mixers, an equation is obtained for the description of the dependence of the lag time of the response curve for an input pulse signal on the volume of the apparatus. A mathematical model is obtained for calculating extremal excursions of the concentrations at the exit as a function of the volume and number of sections of the balancing reservoir.
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  • 59
    Publication Date: 2013-12-14
    Description: An objective function is presented and constraints for optimization of the construction parameters of a chain transmission are formulated. Examples are given of calculations based on different requirements imposed on transmissions, according to which optimal variants of a drive are identified.
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  • 60
    Publication Date: 2013-12-14
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  • 61
    Publication Date: 2013-12-14
    Description: This article presents test results for a reactor model designed for low-temperature pyrolysis of biomass. The efficiency of the pyrolysis attains maximum values at 240–250°C and a process duration of 50 min. The test results are used in the development of an industrial reactor with a capacity of 1 ton/h with respect to initial biomass.
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  • 62
    Publication Date: 2013-12-14
    Description: The necessity and expediency of use of steam and gas plants in Russia are discussed. The flow diagram of the thermal plant PGU-110, equipment composition, power and heat generating data, etc., are given. The energy efficiencies of the plant under summer and winter operation conditions are calculated.
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  • 63
    Publication Date: 2013-12-14
    Description: The effect of electromagnetic radiation energy and sodium chloride addition on cleaning effluent from heavy metal ions (lead, zinc) by phytoremediation is studied.
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  • 64
    Publication Date: 2014-01-22
    Description: The schematic of a vortical contact stage is presented for heat- and mass-exchange processes, and possible flow regimes of the gas-liquid layer are analyzed. Equations for calculation of the critical gas velocity ensuring conversion to an annular flow regime of the gas–liquid mixture, and relationships between the Sherwood and Reynolds numbers are derived. The Murfree efficiency of the vortical contact stage is evaluated. Relationships between the coefficient of convective heat exchange during boiling in the rotating layer on the specific heat load and centrifugal criterion are obtained.
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  • 65
    Publication Date: 2014-01-22
    Description: Problems associated with the use of diatomaceous earth in the formulation and production of fuel pellets based on plant wastes are examined. A procedure for production of unfired silica gravel based on contaminated diatomaceous earth is described. Mixes are investigated for production of fuel pellets and their combustion kinetics. A rotary granulator with a flat die of improved design is recommended as principal equipment for production of the fuel pellets.
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  • 66
    Publication Date: 2014-01-22
    Description: The feasibility of using anodic depolarization for water electrolysis in a system containing a solid polymer electrolyte is examined. Anodic depolarization in electrolysis helps reduce energy consumption by a half. Sulfur dioxide (sulfurous anhydride) and some organic compounds, methanol in particular, can be used as depolarizers.
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  • 67
    Publication Date: 2014-01-22
    Description: The effect of ultrasound and heat treatment on the dynamic viscosity, pour point, density, acidity, interphase tension at the water interface, and chemical composition of Ust-Tegusskoe oil is investigated. It was revealed that the plastic viscosity of the treated oil was diminished by a factor of 1.7 and the pour point by 32°C after ultrasonic treatment. Maximum depression of the pour point is obtained after ultrasonic treatment at 80°C and pressure of 1 atm in a helium medium.
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  • 68
    Publication Date: 2014-01-22
    Description: A technology of applying ion-plasma coatings on detachable joints of chemical and petroleum engineering equipment is described. The investigation results show that the leak-tightness of detachable joints can be increased by applying ion-plasma coatings.
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  • 69
    Publication Date: 2013-12-14
    Description: It is shown that multilayer carbon nanotubes, formed using pyrolytic treatment and mechanical activation for amorphous carbon prepared from different plant raw materials, exhibit high sorption capacity with respect to hydrogen.
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  • 70
    Publication Date: 2013-12-14
    Description: An analysis of the physical and mathematical models of the flow process of an anomalously viscous liquid along the surface of a conical birotary mixer is presented. A system of integral parameters of the operation of the mixer that makes it possible to determine the equivalent diameter of drops of the dispersed phase in any stage of a birotary mixer is obtained. Experimental verification of theoretical studies confirmed the goodness-of-fit of the engineering technique used to calculate this type of centrifugal mixer.
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  • 71
    Publication Date: 2013-12-14
    Description: Results are presented for experimental verification of engineering system instability development during turning polymer material workpieces. The nature of the correlation between cutting regime, form of previous workpiece preparation, and turned machined surface roughness, is established. Existence is confirmed by experiment of those caprolon turning regimes whose implementation leads to transfer of an engineering system lathe–fixture–tool–workpiece (LFTW) into an unstable condition, indicated by a sharp reduction in machined surface quality.
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  • 72
    Publication Date: 2013-12-14
    Description: Results are provided for work on molding mixed products with a polymer binder granular structure, prepared by cryomechanical technology. The possibility is considered of accomplishing the process of homogenizing powder filler by compression impregnation. A mathematical expression is obtained making it possible to calculate the time required for mixed product formation in relation to initial binder granule size and other moldable mix parameters. The efficiency of homogenization in different molding methods for mixed products with a polymer binder granular structure is evaluated. The expediency of compression impregnation in molding objects by plunger extrusion is demonstrated.
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  • 73
    Publication Date: 2013-12-14
    Description: A technique for selection and design of magnetic clutches with highly coercive permanent magnets (barium oxide magnets or magnets produced from such alloys of rare-earth elements as samarium–cobalt and neodymium–iron–boron) for sealed machines (pumps, compressors, mixers) is presented.
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  • 74
    Publication Date: 2013-12-14
    Description: Methods of calculating processes of discharge and suction in a displacement pump with gas damper are developed and the basic results of calculations of suction and discharge pressure in the working cavity of a pump as a function of the turning angle of the crankshaft (disregarding or based on the speed of the fluid) are presented.
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  • 75
    Publication Date: 2013-12-14
    Description: Analysis is provided for electrolytic chromizing and flame spraying used for strengthening plungers in the manufacture of sucker-rod deep-well pumps. The main disadvantages of these strengthening methods are indicated. A new method is proposed for strengthening plungers using cold electrolytic iron plating. Operation of test specimens of sucker-rod well pumps under industrial conditions, fitted with plungers strengthened by cold iron plating, demonstrate an advantage over chromizing and flame spraying. An increase in operating life by a factor of 1.2–1.3 is established.
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  • 76
    Publication Date: 2013-12-14
    Description: Surface hardening methods are considered and analyzed for titanium and titanium alloy components, including engineering solutions for writing inventions.
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  • 77
    Publication Date: 2013-10-10
    Description: Improved physical and mathematical models of polymer melting in screw extruder channels are proposed. The basic distinction of these models is that three phases, namely, a solid porous plug, a mixture of melt, solid granule residuals, and gas, and a fully molten material, interact in the melting zone. Distributions of speed and temperature of the material in the screw channels are determined with due regard for the influence of barodiffusion, convection, and collapse of the plug. Evolution of plug collapse and melting processes is studied.
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  • 78
    Publication Date: 2013-10-10
    Description: A method of determining the shear force of highly coercive permanent magnets (made of alloys of the rareearth elements samarium cobalt and neodymium ferroboron) in a magnetic system and the calculation of the transferring torque of a magnetic coupling are considered
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  • 79
    Publication Date: 2013-10-12
    Description: Possible alternatives of locating a gas separating unit in layouts of plants for preparing gas for transporting and for field booster compressor stations (BCS) are examined. Designs of a gas cleaning unit of the first separation stage with a built-in lock interceptor based on vertical apparatuses are presented. The dynamics of development of separating equipment for protecting BCS is discussed. The problem of ambiguities in current normative-technical documents relating to technical specifications of gas preparing equipment before the BCS is identified.
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  • 80
    Publication Date: 2013-10-12
    Description: A production scheme for the fabrication of a protective blade of an elbow is analyzed. It is demonstrated that the simplest process (bending of a steel strip over a cylinder), which makes it possible to easily install a blade within the elbow, does not ensure the required theoretical profile, and, consequently, an effective modernized article.
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  • 81
    Publication Date: 2013-10-12
    Description: A study of the structure of the gas–liquid layer beneath a section baffle plate in a section sparger is presented. A model that defines the dependence of the mean surface-volume diameter of gas bubbles on the magnitude of the gas content is developed on the basis of the theory of locally isotropic turbulence. The results of experiments confirmed the goodness-of-fit of the proposed model.
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  • 82
    Publication Date: 2013-10-08
    Description: A procedure is proposed for analysis of maximum mismatch angle between the half couplings of a magnetic clutch and highly coersive permanent magnets (formed from alloys of rare-earth elements – samarium-cobalt and neodium-iron-boron) during the start-up of an asynchronous motor is proposed for the design of hermetically sealed machines (pumps, compressors, mixers, etc.).
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  • 83
    Publication Date: 2013-10-07
    Description: A procedure is provided for rapid climatic testing of fireproofing materials. According to test results, the best survival rate and climatic stability is demonstrated by fireproofing foaming composition SGK-2. This composition is recommended for use as a fireproofing coating for metalwork of gas pumping equipment for prolonged (up to 20 years) operating life.
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  • 84
    Publication Date: 2013-10-07
    Description: An alternative scheme of a mathematical model of the expansion of a polymer stream at the outlet from a cylindrical molding channel is examined. Results of the kinetic theory of high elasticity of rubbers, the theory of finite deformations, and the linear theory of elasticity in simple shear are used in constructing the model. Literature data on the rheologic properties of polybutadiene rubber were used to test the model. It is established that computed and experimental data are in satisfactory agreement.
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  • 85
    Publication Date: 2013-10-07
    Description: It is based on the use of the Hammett acidity function and light transparency coefficient of sulfuric acid production medium in designating resin for acid-resistant fiberglass objects, molded in an assembly area. It is shown that monitoring corrosiveness (protolytic activity) of a production medium may be carried out colorimetrically using normal plant laboratory equipment.
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  • 86
    Publication Date: 2013-10-11
    Description: An automated hydraulic jet unit for transportation of the multiphase product of oil wells along a single pipe that yields a reduction in operating costs by comparison with analogs is proposed.
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  • 87
    Publication Date: 2013-10-11
    Description: Different designs for improving rotary disk mixers used to process homogeneous and nonhomogeneous liquid media are considered. The advantages and drawbacks of the designs are considered. Recommendations for the use of rotary disk mixers are given.
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  • 88
    Publication Date: 2013-10-11
    Description: Problems of uneven flow distribution in plate-fin heat exchanger batteries operating in air separation and natural gas liquefaction plants are discussed. It is shown that uneven flow distribution in the battery between individual apparatuses reduces the integral characteristics of the entire battery markedly. A concept is proposed for ensuring a fixed degree of flow unevenness in batteries of such heat exchangers.
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  • 89
    Publication Date: 2013-10-11
    Description: The feasibility of protecting thermally stressed surfaces of gas-transfer units with heat-resistance polyimide paint materials with mineral fillers is explored. Properties of polyimide paint materials containing different fillers are compared. It is demonstrated that of the compositions examined, a paint material based on a PI-LK-2 paint with the addition of 5–10 wt.% of kaolin, and one based on a PI-LK-1 paint with the addition of 5 wt.% of a chopped basaltic fiber afford the best thermal stability.
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  • 90
    Publication Date: 2013-10-11
    Description: This paper presents an analysis of the counterflow and crossflow drop traps (demisters) installed in the feedstock injection area of pyrogas sodafining column. It is shown that the “square” and “two-lane” type of two-tier irrigated crossflow drop traps that are installed in the feed areas of vacuum columns and have separating-rectifying properties are operationally efficient. Crossflow drop traps significantly intensify mass transfer separation process owing to improved hydrodynamic conditions of primary separation of two-phase flows in the feedstock injection area.
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  • 91
    Publication Date: 2013-10-07
    Description: A mathematical model of the vibrations of a production system for the turning of blanks is presented. Results of comparative analysis of processes employed for the turning of steel-45 and caprolon blanks are presented. The relationship between the mean-arithmetic deviation of the profile of the machined surface of caprolon articles from the maximum values of the energy spectrum of vibration accelerations and the vibration frequencies of the production system corresponding to them during the machining of blanks is established experimentally.
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  • 92
    Publication Date: 2013-10-11
    Description: This paper reports the results of computations in the COMSOL Multiphysics medium, based on which various versions of optimization of designs of electrodehydrators for crude oil electrodesalination plants are proposed.
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  • 93
    Publication Date: 2013-10-11
    Description: Analytical expressions of conditions for assurance of the wear resistance of a chain, provision for fatigue resistance of chain leafs, rollers, and bushings, elimination of seizing and progressive wear in links, assurance of the required angle of contact of the sprockets, and structural limitations are given.
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  • 94
    Publication Date: 2013-10-11
    Description: A design of flat-chamber electrobaromembrane unit for the cleaning of effluents of chemical and machinebuilding productions is presented. A procedure is developed for optimal design of the flange construction of a flat-chamber electrobaromembrane unit, proceeding from the condition whereby the mass is minimized for a given strength and stiffness. An engineering method of analyzing a flat-chamber electrobaromembrane unit, which makes it possible to determine the effective area and number of separation elements in the unit with allowance for the application of an electric field on the unit is proposed.
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  • 95
    Publication Date: 2013-10-11
    Description: The requirements imposed on calendar rollers and cylinders for treatment of polymers and synthetic materials using these units are presented. It is shown that rollers with peripheral channels that allow for movement of liquid heat-transfer agents are the most preferable. Designs of rollers and methods of improving them are considered.
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  • 96
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    Publication Date: 2013-10-12
    Description: A design is proposed for a gate valve intended for operation in aggressive media. All elements of the gate valves are fabricated from materials resistant to an aggressive working media, and are connected by welding, making it possible to enhance the in-service reliability of the gate valve.
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  • 97
    Publication Date: 2013-10-12
    Description: Two-dimensional flow of a viscous Newtonian-type fluid in the working cavity of a roller-type granulator, in the form of a wide curvilinear wedge with porous boundary surface, is considered. Laws for the distribution of pressure in the wedge that make it possible to calculate the productivity of the granulator are obtained.
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  • 98
    Publication Date: 2013-10-18
    Description: Data are presented for thermal and thermal-oxidation destruction of polypropylene nanocomposites based on organically modified layered aluminosilicate, nanodispersed calcium carbonate, and carbon nanotubes. The effect is revealed of structural characteristics of nanodispersed additives on the change in thermal stability of polypropylene nanocomposites.
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  • 99
    Publication Date: 2013-10-18
    Description: The goal of the study of liquid dispersion by centrifugal injector for getting uniform drop size distribution is formulated. The salient methods of dispersion process study and possible means of data processing are discussed. Specimens of the obtained differential and integral size-wise drop distribution curves are given.
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  • 100
    Publication Date: 2013-10-18
    Description: A method of calculating partial magnitudes in equilibrium low-temperature adsorption of a neon-helium mixture on a base of the carbon adsorbent AG-2 is proposed and good convergence with experiment is obtained. The method of calculation of partial magnitudes may be applicable to adsorption systems in which an adsorbate forms an ideal adsorption solution.
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