CATALYST AND METHOD FOR MANUFACTURING AROMATIC HYDROCARBON BY DIRECTLY CONVERTING SYNTHESIS GAS

摘要

The present invention involves a technology for synthesis of aromatic hydrocarbons from synthesis gas, and relates to a catalyst and a method for synthesis of aromatic hydrocarbons through direct conversion of synthesis gas. The method uses synthesis gas as the feeding, which is operated in a fixed bed or a moving bed reactor. The catalyst is a composite catalyst with components A and B and formed by compounding Catalyst Component A and Catalyst Component B in a mechanical mixing mode, wherein the active ingredient of the Catalyst Component A is active metal oxides; and the Catalyst Component B is one or both of ZSM-5 zeolite and metal modified ZSM-5; the pressure of the synthesis gas is 0.1-6 MPa; the reaction temperature is 300-600 °C; and the space velocity is 500-8000 h -1 . The reaction process has a high product yield and selectivity, with the selectivity of aromatics reaching 50-85%, while the selectivity of the methane byproduct is less than 15%. The present invention has strong potentials for industrial applications.