Method for preparing 2,5-dimethyl furan by catalyzing selective hydrodeoxygenation of 5-hydroxymethyl furfural

The invention discloses a method for preparing 2,5-dimethyl furan by catalyzing selective hydrodeoxygenation of 5-hydroxymethyl furfural. The method comprises the following steps: by taking a supported metal as a catalyst, taking hydrogen as a hydrogen source, taking an organic solvent as a reaction solvent, converting 5-hydroxymethyl furfural into the 2,5-dimethyl furan under the proper reaction temperature, reaction time and stirring speed. According to the method disclosed by the invention, the reaction conditions are mild, and the equipment requirement is low; the operation process is simple and easy to master; the target product yield is high and can be 94.7 percent; the target products can be separated and purified by utilizing a method for combining simple atmospheric distillation with reduced pressure distillation; and moreover, the catalyst and the reaction solvent can be recycled and can be repeatedly used, the waste emission amount is small, and the method is green and environmentally friendly and has extremely high practicality and good industrial prospects.