The EU-funded e-CODUCT project aims to develop an operational pilot set-up for an electrothermal catalytic reactor powered by renewable energy sources. The electrothermal fluidised bed reactor will produce industrially valuable carbon monoxide (CO) and sulphur (S) from carbon dioxide (CO2) and hydrogen sulphide (H2S). The conversion process will comprise two steps: CO2 and H2S reduction into carbonyl sulphide (COS) and COS decomposition into CO and sulphur. e-CODUCT will optimise and scale-up the reactor materials and catalysts to TRL6 to 16t/y of CO production, while reducing reactor size by 50%. The proposed technology is already used in methane cracking for hydrogen and carbon production and could be adapted for other applications such as fluid catalytic cracking, steam cracking and dehydrogenation.