Corr-oor electrolyser system and related process for facilitating the capture and conversion of coin gas mixture streams

Abstract

The present disclosure relates to a MEA electrolyser comprising a cathodic compartment operating CO2 reduction reactions (CORR) of COfrom a gaseous CO-containing stream, an anodic compartment operating all-liquid organic oxidation reactions (OOR), an ionic exchange membrane in between. A CORR-OOR system can further include a gas-liquid separation unit in fluid communication with the anodic compartment to receive the anodic product mixture and separate gaseous COfrom the anodic product mixture to produce a CO-depleted liquid product stream and a recovered pure gaseous COstream. The system can further include a recycle line in fluid communication with the gas-liquid separation unit to redirect the recovered pure gaseous COstream to the cathodic compartment of the MEA electrolyser as a portion of the gaseous CO-containing stream. The present disclosure also concerns a process for electrochemically converting the gaseous CO-containing stream to multi-carbon products in such a MEA CORR-OOR electrolyser.