Efficiency Analysis of Synthetic Methane Production in Power-to-Gas Process Employing Solid Oxide Electrolyser

Abstract

The power-to-gas technology is considered to provide the means of storing surplus renewableenergy in the form of synthetic natural gas. The study analyses the P2G system with respect tothe three main components i.e. electrolysers (especially solid oxide electrolysers that have ahigher operating temperature), the methanation reactor and the synthetic methane injectionsystem. Efficiency of the individual components is evaluated with three different configurationsemploying heat recovery at various sections of the P2G system. The model has been studied inthe ANSYS environment. The configurations are finally evaluated for an optimized solution asregards the efficiency of the entire system and the quality of the produced synthetic.