Sorption-enhanced CO2 methanation: characterization and kinetic modelling of a zeolite-based catalyst

While a transition towards more sustainable fuels is necessary, hydrogen cannot be used in current infrastructure and combustion systems. Methanation could provide a way to use electrolysis-produced hydrogen from renewables and captured carbon dioxide to obtain carbon-neutral methane, usable in the present infrastructure. Sorption-enhanced methanation is investigated as a strategy to overcome equilibrium limitations by using zeolites that adsorb the water produced during the reaction. Several catalysts are synthesized, characterized, and compared in terms of performance, and kinetic modeling is carried out on the most promising one.