公开(公告)号：US11504698B2

公开(公告)日：2022-11-22

申请号：US16483369

申请日：2018-01-25

申请人： SHANXI UNIVERSITY

发明人： Yongxiang Zhao ,  Haitao Li ,  Lili Zhao ,  Hongxi Zhang ,  Zijin Sun ,  Yongzhao Wang

IPC分类号： B01J23/755 ,  B01J23/00 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  B01J37/06 ,  B01J37/16 ,  C07C29/141 ,  C07C29/17 ,  C07C31/20

摘要： A Ni—Al2O3@Al2O3—SiO2 catalyst with coated structure is provided. The catalyst has a specific surface area of 98 m2/g to 245 m2/g, and a pore volume of 0.25 cm3/g to 1.1 cm3/g. A mass ratio of an Al2O3 carrier to active component Ni in the catalyst is Al2O3:Ni=100:4˜26, a mass ratio of the Al2O3 carrier to an Al2O3—SiO2 coating layer is Al2O3:Al2O3—SiO2=100:0.1˜3, and a molar ratio of Al to Si in the Al2O3—SiO2 coating layer is 0.01 to 1. Ni particles are distributed on a surface of the Al2O3 carrier in an amorphous or highly dispersed state and have a grain size less than or equal to 8 nm, and the coating layer is filled among the Ni particles.