Valorization of Carbon Dioxide by Co-Electrolysis of CO2/H2O at High Temperature for Syngas Production

In order to reduce annual emissions of greenhouse gases, manufacturers are constantly trying to develop low-costly ways to treat carbon dioxide emissions from industrial activity. This can be done by valorizing the carbon dioxide (CO 2 ) emitted by integrating it in production processes of other raw materials like chemicals or fuels. One such alternative should be the co-electrolysis of CO 2 /H 2 O at high temperature to produce syngas (H 2 and CO mixture), used for fuels elaboration or ethanol production. Electrolysis cell was modelized using Aspen Plus® V7.1 simulator and an economic evaluation was performed. It included investment and operating costs. The evaluated production cost for 1 kg of syngas would cost 1.30 €, Which represents 69.27 €/GJ based on the low hearting valuefor the considered syngas with a H 2 /CO ratio equal to 1.19.