文献类型：期刊文献

英文题名：Supported Ni-W Bimetallic Catalysts for Hydrogenation of Poly-Alpha-Olefins Synthetic Base Oil

作者：Zheng, Lishan[1];Wang, Sitan[1];Lou, Shifeng[1];Liu, Kande[1];Meng, Xuan[1];Liu, Naiwang[1];Shi, Li[1]

机构：[1]East China Univ Sci & Technol, Int Joint Res Ctr Green Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：154

期号：10

起止页码：5732

外文期刊名：CATALYSIS LETTERS

收录：;EI(收录号：20242716644783);WOS:【SCI-EXPANDED(收录号:WOS:001261204900001)】；

语种：英文

外文关键词：Ni-W bimetallic catalysts; Poly-alpha-olefins; Hydrogenation; Activity

摘要：A series of Ni-W bimetallic catalysts were prepared by Ni2O3 and WO3 on porous materials and used in a fixed bed reactor for the hydrogenation of poly alpha-olefin base oil synthesis. The catalysts were characterized by N2 adsorption-desorption, XRD, H2-TPR, H2-TPD, XPS, TEM and ICP-OES to investigate the catalytic activity and explore the possible deactivation mechanism. Under the optimal reaction conditions of 250degree celsius, 4 MPa, LHSV = 3 h-1 and H2: PAO = 200, the Ni5W1/Clay catalyst with 5% nickel and 1% tungsten loading can make the hydrogenation conversion rate as high as 100%, and the catalyst deactivation is not obvious within 8 h. The addition of W led to the reduction of the metal particle size as well as the formation of more dispersed active sites, thus improve its catalytic activity.