Effect of leakage currents on the primary current distribution in bipolar electrochemical reactors

The primary current distribution in a bipolar electrochemical reactor with outside inlet and outlet electrolyte manifolds was investigated by numerical solution of the Laplace equation and by experimental measurement in simulated cells made from conductive paper and segmented electrodes. The geometr...

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Bibliographic Details
Published in:Journal of applied electrochemistry 2007-08, Vol.37 (8), p.877-886
Main Authors: Henquín, E. R., Bisang, J. M.
Format: Article
Language:English
Subjects:
Chemical reactors
Current distribution
Electrodes
Electrolytes
Electrolytic cells
Laplace equation
Leakage current
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Summary:The primary current distribution in a bipolar electrochemical reactor with outside inlet and outlet electrolyte manifolds was investigated by numerical solution of the Laplace equation and by experimental measurement in simulated cells made from conductive paper and segmented electrodes. The geometric parameters determining the distribution were the interelectrode gap, electrode length, transverse section and length of the electrolyte manifold. The effect of the number of electrodes in the bipolar stack was also analysed. Values obtained numerically have been compared with those obtained experimentally and a good agreement is observed between them. These results are useful for estimating the performance of the bipolar stack.
ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-007-9324-2