A Challenge to the Green Transformation of City Gas by SOEC Methanation Technology Innovation

Abstract

Methanation is a rational method that allows natural gas and city gas users to smoothly promote carbon-neutralization at low cost while utilizing their existing equipment and facilities. SOEC methanation technology (high temperature electrolysis and gas synthesis technology) is expected to be an innovative technology that can synthesize non-fossil fuels such as green methane using non-fossil electricity with extremely high energy conversion efficiency that exceeds that of hydrogen production by water electrolysis. In this paper, the outline and potential of this technology, our efforts, and future prospects will be introduced.