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  • 1
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    Systems with Structured Packing: Fluid-Dynamics and Liquid-Solid Mass Transfer (2000)
    Wiley
    Details
    Publication Date: 2000-11-01
    Print ISSN: 0930-7516
    Electronic ISSN: 1521-4125
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Published by Wiley
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  • 2
    Electronic Resource
    Electronic Resource
    Mass transfer in electrolytic cells with gas stirring (1987)
    Springer
    Journal of applied electrochemistry 17 (1987), S. 340-346 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Mass transfer to wall electrodes was investigated in a circular cell agitated by gas bubbles. Perforated and porous plates were used as gas spargers. Electrodes with varying height and electrolytic solutions having different physical properties were tested. It was found that the enhancing effect of gas bubbles on the mass transfer coefficient is a function of the gas hold-up, irrespective of the velocity of the gas flow and the gas distributor employed. The results were correlated for short mass transfer lengths by the relationship $$Sh = 0.231(ScGa)^{\frac{1}{3}} (L/D_c )^{--0.194 _\varepsilon 0.246}$$ and for fully developed mass transfer by $$Sh_\infty = 0.256(ScGa)^{\frac{1}{3}} \varepsilon ^{0.254}$$
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01023300
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  • 3
    Electronic Resource
    Electronic Resource
    Mass transfer to planar and expanded metal electrodes in bubble columns (1988)
    Springer
    Journal of applied electrochemistry 18 (1988), S. 128-133 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Mass transfer rates at planar electrodes and electrodes of expanded metal placed in the centre of a bubble column were measured. The gas velocity and the physical properties of the electrolytic solutions were varied and different types of expanded metal were investigated. In some cases increases in the mass transfer coefficient over the planar electrode value of more than 100% were obtained. Dimensionless correlations are presented for the different systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01016216
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  • 4
    Electronic Resource
    Electronic Resource
    Mass transfer in annular electrolytic cells with gas stirring (1991)
    Springer
    Journal of applied electrochemistry 21 (1991), S. 40-43 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Mass transfer towards the inner electrode and the wall electrode was studied in an annular cell stirred with an inert gas bubble flow. Experimental data obtained for the wall electrode follow the relationship found previously for circular cells; namely $$Sh = 0.231(ScGa)^{1/3} (L/D_e )^{ - 0.194_\varepsilon0.246}$$ Study of the influence of gas hold-up on the mass transfer rate towards the inner wall electrode has yielded the following relationship: $$Sh_\infty= 0.315(ScGa)^{1/3_\varepsilon0.231}$$
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01103827
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  • 5
    Electronic Resource
    Electronic Resource
    Electrochemical mass transfer to regular packings in a bubble column (1995)
    Springer
    Journal of applied electrochemistry 25 (1995), S. 273-278 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The behaviour of regular packings constructed from corrugated metal sheets was investigated since they constitute an attractive packing material for the electrochemical absorption of gases. Mass transfer coefficients for the regular packing contained in a circular electrolytical cell were determined by the electrochemical method with simulation of the absorption process by bubbling nitrogen through the column. Correlations for the mass transfer rate as a function of fluid dynamic parameters and fluid properties are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00262967
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  • 6
    Electronic Resource
    Electronic Resource
    Mass transfer to volumetric electrodes with two-phase flow (1989)
    Springer
    Journal of applied electrochemistry 19 (1989), S. 100-104 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Experimental studies of mass transfer were conducted in stacked screens with a gas-liquid mixture flowing through the bed. Depending on the gas and liquid flow rates and on the geometric characteristics of the screens, different flow regimes are obtained. In the heterogeneous flow regime the gas phase controls mass transfer, meanwhile in the transition and bubbling flow regimes the influence of the liquid flow prevails. Appropriate dimensionless groups correlate the mass transfer coefficients with the pertinent variables for the different regimes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01039397
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