Patent ID: 8946307
Filing Date: 2015-02-03
Classification: B01D,C01B,C07C,C10G,C10J,C10K,C10L,Y02E,Y02P

Abstract:
1. A biomass gasification gas purification method comprising: gasifying biomass so as to produce biomass gasification gas; removing dust in the biomass gasification gas; desulfurizing sulfur oxide components in the biomass gasification gas that has had the dust removed therefrom so as to produce desulfurized biomass gasification gas; reforming tar components in the desulfurized biomass gasification gas using a pre-reforming reactor, the pre-reforming reactor having a catalyst with an allowable catalyst temperature; feeding at least one of natural gas and steam to the pre-reforming reactor during said reforming of tar components; obtaining an equilibrium constant from partial pressures of CH determining amounts of the natural gas and steam feeding to the pre-reforming reactor in said feeding at least one of natural gas and steam to the pre-reforming reactor so that the equilibrium constant that is obtained from the partial pressures of CH