Combined circulation system for gasified combustion and catalyst regeneration by adopting heat carrier as basis

The utility model discloses a combined circulation system for gasified combustion and catalyst regeneration by adopting heat carrier as the basis, belonging to the field of double-fluidized-bed biomass gasification equipment. A combustion reactor is divided into a combustor and a catalyst regeneration reactor; a gasification furnace is divided into a gasification-furnace gasification part and a gasification-furnace catalytic cracking part. The combined circulation system comprises two circulating systems, wherein one part is a heat carrier circulation system, and the heat carrier provides a heat source for gasification of fuels such as biomass; the other part is a catalyst regeneration circulation system, and a catalyst realizes the function of eliminating deposited carbon and toxic substances. The combined circulation system disclosed by the utility model has the advantages that the catalyst circulation and the heat carrier circulation are separated, the possibility of carbon deposition of the catalyst is re