Advances in methanation catalysis

Abstract

The hydrogenation of CO to CH4, the CO methanation reaction, has attracted considerable attention due to energy and environment concerns. The reaction is thermodynamically favourable, however, the catalyst should show appreciable activity and durability in this highly exothermic reaction. This chapter focuses on recent advances in methanation catalysis, addressing on the roles of the metals, supports, promoters, the reaction and deactivation mechanisms, and the reactor types, with the aim to provide a foundation for the rational design of CO methanation catalysts and processes that enables the production of synthetic natural gas (SNG) in a more economic and greener manner.