Light benzene hydrogenation method

The invention belongs to the technical field of benzene processing and particularly discloses a light benzene hydrogenation method. According to the method, a low-temperature hydrogenation method is adopted to completely remove each impurity mainly including thiophene, wherein all the sulfides (thiophene, methyl thiophene, carbon disulfide and the like) are converted into H2S and light hydrocarbon, nitride is converted into NH3 and arene or alkane, oxide is converted into H2O and arene or alkane, and unsaturated hydrocarbon is saturated by hydrogenation, and then high-quality benzene, methylbenzene and dimethylbenzene can be produced.