Secondary current distribution of chlor-alkali electrolyser with two-phase flow approach
Volume Title: 1
1Department of Chemical Engineering, Amirkabir University of Technology (Tehran polytechnic), Tehran, Iran
22Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
Electrolysers, e.g. water electrolysis for hydrogen production, metallurgical process etc., play a key role in the chemical and electrochemical processes while growing their utilization. One of the electrochemical processes is chlor-alkali which produces quite valued products such as caustic soda and chlorine derivative chemicals. Electrolysers consume electrical energy to produce chemicals and several studies have been performed to improve the corrsponding efficiency. Modeling and simulation is one of the low cost tools to optimize the designing of the electrolytic cell, thus enehancing their performance. Current distribution is one the critical parameters in designing the cell. In this study the parameters affecting the current distribution, i.e., flow inlet velocity, distance between membrane and electrode and bubble size were investigated. The prediction of the current density distribution can be implemented by changing the inlet velocity, the gap between the electrode and membrane and bubble size.
Chlor-alkali; Electrochemical cell; Current distribution; Two-phase flow; modeling and simulation; CFD