Lab-scale experimental tests of power to gas-oxycombustion hybridization: System design and preliminary results

Power-to-Gas (PtG) represents one of the most promising energy storage technologies. PtG converts electricity surplus into synthetic natural gas by combining water electrolysis and CO2 methanation. This technology valorises captured to produce a ‘carbon neutral’ gas, while allowing temporal displacement renewable energy. PtG-Oxycombustion hybridization is proposed integrate mass flows global system. Oxygen, comburent under oxy-fuel combustion, commonly produced in an air separation unit. unit can be replaced electrolyser which by-produces O2 reducing electrical consumption penalty carbon process. The aim this work present design, construction testing methanation reactor at laboratory scale increase knowledge key component Experimental data are used validate theoretical kinetic model different operating temperatures implemented Aspen Plus. conversions about 60–80% found for catalyst temperature between 350 550 °C. These values agree well with expected from model.