Method for catalytically hydrogenating raw materials containing unsaturated bonds

The invention provides a method for catalytic hydrogenation of a raw material containing unsaturated bonds, the method is carried out in hydrogenation reaction equipment comprising N reaction sections connected in series, and the method comprises the following steps: mixing a first strand of raw material with a solvent, and introducing the mixture and hydrogen into a first reaction section to carry out catalytic hydrogenation reaction; and in each step from the second step to the Nth step, mixing the Mth strand of raw material with the (M-1) th section of product flow, and introducing the mixture and the (M-1) th section of hydrogen flow into the Mth reaction section to carry out catalytic hydrogenation reaction. According to the method, the process steps are specially designed, so that the reaction temperature control effect is remarkably improved, meanwhile, the use amount of a solvent and hydrogen is reduced, the overall process energy consumption is reduced, and the overall process operation efficiency an