| 摘要 |
Coal is gasified to a mixture of CO and H2. The mixture is converted to a hydrocarbon mixture over a catalyst containing a crystalline iron silicate. From the hydrocarbon mixture isobutane and an aromatic gasoline fraction are separated. The isobutane is converted by alkylation into a product from which a gasoline fraction is separated. The two gasoline fractions are mixed. The catalyst employed may be a mixture of crystalline iron silicate with either (1) a Fe/Cu/K/SiO2 Fischer-Tropsch catalyst and a Cu/Zn CO shift catalyst, or (2) a ZnO-Cr2O3 composition serving to catalyse both the reduction of CO to methanol and the water gas shift reaction. |
