▎ 摘　　要

NOVELTY - Catalyst includes first component and second component. The first component and second component are compounded together in a mechanical mixing manner. The active ingredient of first component is a metal oxide, and second component is a one-dimensional (1D) ten mesoporous molecular sieves with ring pores. The mesoporous molecular sieve contains a hierarchical pore structure of macropores, mesopores and micropores. The metal oxides are MnOx, MnCryO(x+1.5y), MnAlyO(x+1.5y), MnInyO(x+1.5y), zinc oxide (ZnO), ZnCryO(1+1.5y), ZnAlyO(1+1.5y), ZnGayO(1+1.5y), ZnInyO(2+1.5y), cerium oxide (CeO2), gallium oxide (Ga2O3), indium oxide (In2O3), CoAlyO(1+1.5y), FeAlyO(1+1.5y), ZnyAlzMnO(x+1.5y+1.5z), or InyGazMnO(x+1.5y+1.5z), where value range of x is 1-3.5, y is 0.1-10, and z is 0.1-10. The specific surface area of the MnOx, ZnO, CeO2, Ga2O3, and In2O3 is 1-100 m2/g. USE - Catalyst for preparing low-aromatic liquid fuel from syngas by one-step method (claimed). ADVANTAGE - The catalyst provides novel method for the comprehensive utilization of mixed 4 carbons and has good application prospects. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing low-aromatic liquid fuel from syngas by one-step method, which involves using synthesis gas and the 4 carbons component as the reaction raw material gas, and carrying out the conversion reaction in a fixed bed or a moving bed, and using the catalyst.