Equipment for preparing light aromatic hydrocarbon and co-producing methanol through acetylene trimerization through biomass microwave conversion

The utility model belongs to the technical field of biomass treatment, and particularly relates to equipment for preparing light aromatic hydrocarbon and co-producing methanol through acetylene trimerization converted from biomass through microwaves, which comprises a pretreatment device used for soaking biomass particles in alkali liquor and removing lignin; the anaerobic fermentation device is used for performing anaerobic fermentation on the biomass particles to generate methane and carbon dioxide; the methane microwave conversion device is used for converting methane into acetylene; the acetylene trimerization reaction device is used for converting acetylene into light aromatic hydrocarbon; and the methanol synthesis reaction device is used for preparing methanol from hydrogen and carbon dioxide through methanol synthesis reaction. The equipment can be coupled with anaerobic fermentation, microwave conversion, acetylene trimerization and methanol synthesis processes, biomass is directly converted into lig