Selective catalytic hydrogenation of naphthalene to tetralin over a NiMo/Al2O3 catalyst  

作　　者：Xiaoping Su Pu An Junwen Gao RuchengWang Yujuan Zhang Xi Li Yangkun Zhao Yongqi Liu Xiaoxun Ma Ming Sun 

机构地区：[1]School of Chemical Engineering,Northwest University,International Science&Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon Resources,Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy,Shaanxi Research Center of Engineering Technology for Clean Coal Conversion,Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi,Xi'an 710069,China [2]Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi'an 710069,China

出　　处：《Chinese Journal of Chemical Engineering》2020年第10期2566-2576,共11页中国化学工程学报（英文版）

基　　金：supported by the Joint Funds of National Key R&D Program of China(2018YFB0604603);the National Natural Science Foundation of China(21536009,21776229);Science and Technology Plan Projects of Shaanxi Province(2017ZDCXL-GY-10-03,2018ZDXMGY-167);The Young Science and Technology Star Project of Shaanxi Province(2017KJXX-62);Science and Technology Program of Yulin(2018-2-22)。

摘　　要：The selective catalytic hydrogenation of naphthalene to high-value tetralin was systematically investigated.A series of Al2O3 catalysts containing different active metals(Co,Mo,Ni,W)were prepared by incipient wetness impregnation.The effects of different active metals forms(oxidation,reduction,sulfuration)and reaction conditions on naphthalene hydrogenation were investigated and the catalysts were characterized by XRD,XPS,BET,NH3-TPD and SEM.Especially,Ni-Mo/Al2O3 was first used in this reactive system.The results show that the oxidative4%Ni O-20%MoO3/Al2O3 is the best catalyst for the preparation of tetralin.The conversion of naphthalene and the selectivity of tetralin can reach 95.62%and 99.75%respectively at 200℃,8 h and 6 MPa.Compared with reduced and sulfureted 4%Ni O-20%MoO3/Al2O3 catalysts,oxidative 4%Ni O-20%MoO3/Al2O3 has a well dispersed and uniform monolayer of the active metals,larger pore volume and size,and larger total acidity.NiO-MoO3/Al2O3 has a synergistic effect between NiO activity and MoO3 selectivity.

关 键 词：NAPHTHALENE TETRALIN Ni-Mo/Al2O3 catalysts 

分 类 号：TQ241.52[化学工程—有机化工] TQ426