General Purpose Flow Electrolyzers

Design features these modular general purpose cells ought to have include  

FIGURE 5.7. General purpose flow electrolyzers (a) DEM cell section of divided cell section of undivided cell, (b) SU cell, (c) FM21 cell. Top FMOl laboratory reactor bottom FM21 electrolyzer. Reproduced with permission. 

The electrodes and frames of general purpose cells have a rectangular geometry. However, electrodes with other geometries have been used sometimes. 

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We mentioned in Section 1.3 some important industrial applications of electrolysis—in the chloralkali industry, metal winning and refining, and organic electrosynthesis. As indicated in Section 1.2, we do not intend to describe electrochemical processes in detail, since there are many books on electrochemical technology. We will discuss the design of individual reactors, with emphasis on modularized, general purpose flow electrolyzers. We will classify reactors by their mode of operation. 

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