在Ni/SiO_2传统催化剂的基础上,添加少量助催剂,显著改善了油脂氢化活性和抗毒能力。根据油脂大分子的结构特征和选择氢化的要求,研究了催化剂的化学组成和微观结构。阐述了催化剂活性相的形成机理,讨论了选择氢化的反应机理。 On the basis of Ni / SiO 2 traditional catalyst, a small amount of promoter was added, which significantly improved the hydrogenation activity and anti-poison ability of the grease. According to the structural characteristics of oil macromolecules and selective hydrogenation, the chemical composition and microstructure of the catalyst were studied. The formation mechanism of active phase of catalyst was expounded, and the reaction mechanism of selective hydrogenation was discussed.