Patent ID: 10023820

Abstract:
A device includes a gasifier to produce a gaseous compound from a biomass. The gasifier includes inlets for the biomass and for an oxidizing agent and an outlet for the gaseous compound including carbon monoxide. A first methanation unit to methanate the carbon monoxide to produce a substitute natural gas exiting the gasifier. The first methanation unit includes at least one inlet for water and an inlet for the gaseous compound coming from the gasifier. A second methanation unit to methanate the carbon dioxide to produce the substitute natural gas. The second methanation unit includes at least one inlet for water and one inlet for the carbon dioxide from the first methanation unit. A dihydrogen producing unit to produce dihydrogen from water and electric current. The dihydrogen producing unit includes an electrical power supply, an inlet for water and an outlet for dihydrogen supplying the second methanation unit.