Dynamic behaviour of electrochemical reactors for a step change in the inlet concentration under galvanostatic or potentiostatic control

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Abstract

The dynamic modelling of a cascade of continuous stirred tank electrochemical reactors under galvanostatic and potentiostatic control is performed. The response of the system in outlet concentration and current (potentiostatic case) for a step change in the inlet concentration in terms of the number of reactors is analysed. The idealised models, stirred tank and plug flow, are also included as limiting cases. The time required to reach approximate steady-state values in terms of the number of reactors and electrochemical parameters is discussed.

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