High temperature co-electrolysis of H2O & CO2

High temperature co-electrolysis of H₂O and CO₂ has the advantages of (i) very efficient use of electricity and heat (near 100% electricity-to-syngas efficiency), (ii) high reaction rates and (iii) direct production of syngas with proper composition for use in conventional Fischer-Tropsch catalytic fuel synthesis reactors. This cycle can be described as a “gas-to-liquid” (GTL) process in agreement with the conventional process for the production of syngas from natural gas feedstock. The process may also be referred as a renewable-to-liquids (RTL) process, when RES provide the required energy for the electrolysis step.