A combined solar-powered biomass gasification and CO2 capture and resource utilization system for cold, heat, electricity, and methanol production.

Abstract

The application discloses a cold-heat-electricity-alcohol poly-generation system integrating solar biomass gasification and CO2 capture and resource utilization, which comprises a solar biomass gasification unit, a CO preferential oxidation and purification unit, a CO2 hydrogenation methanol synthesis unit, a fuel cell power generation unit and a waste heat utilization unit; a synthesis gas outlet of the solar biomass gasification unit is connected with an inlet of the CO preferential oxidation and purification unit; a hydrogen-rich gas outlet of the CO preferential oxidation and purification unit is connected with an anode inlet of the fuel cell power generation unit; a CO2 enrichment flow outlet of the CO preferential oxidation and purification unit is connected with a CO2 inlet of the CO2 hydrogenation methanol synthesis unit; and a heat output interface of the fuel cell power generation unit is connected with a heat source inlet of the waste heat utilization unit. The application can realize the collaborative consumption of solar energy and biomass energy, the resource utilization of CO2 capture and the energy cascade recovery, and can simultaneously produce electric energy, cold energy, heat energy and methanol products, and has high comprehensive efficiency and low carbon emission.

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