Deactivation of the Ni/Al 2O 3-SiO 2 catalyst was mainly attributed to the Ni 3S 2 production, agglomeration of nickel clusters, and coke formation during the reaction.

• 结果表明 ；催化剂失活的主要原因是加氢原料中的硫化物与催化剂活性组分镍发生反应生成了Ni3 S2 、镍晶粒长大和催化剂结焦 .