Certain preparative aspects of the flow electrolysis on porous electrodes

Two modes of operation of a flow electrolytic reactor are considered, one consisting of a recycle of a solution between the reactor and a tank, and the other consisting of flowing the solution only once through the reactor. The times of electrolysis to a given final degree of conversion for the two modes of operation of a given reactor are calculated and compared. In the second part of the paper the case of a reaction of ece or ec mechanism going on in a flow electrolytic reactor is considered. Using kinetic theory for two consecutive first-order reactions, equations are derived allowing to calculate the value of the flow rate corresponding to the formation of a maximal concentration of an intermediate electrolytic product, and the value of the concentration. Numerical solutions of the equations are given for two porous electrodes differing in length.