石油化工2025，Vol.54Issue(4)：481-486,6.DOI:10.3969/j.issn.1000-8144.2025.04.005
茂金属催化混合癸烯选择性低聚制备润滑油基础油
Lubricant base oil prepared by selective oligomerization of mixed decene with metallocene catalysts
摘要
Abstract
Several metallocene compounds with different structures were used to catalyze the oligomerization of mixed decene to prepare poly α-olefins(PAO).The oligomerization activity of different metallocene compounds and the performance of PAO were investigated by GC,NMR,and other methods.The experimental results show that the metallocene compound N with a constrained geometry has the best catalytic performance.In the oligomerization process of mixed decene catalyzed by the metallocene compound N,the components of 1-octene,1-decene,5-methyl-1-nonene,and 4-ethyl-1-octene undergo highly selective oligomerization,with a conversion all exceeding 95％.The kinematic viscosity of the product PAO(100 ℃)is 50.42 mm2/s,with a pour point comparable to that of the commercial PAO.In the mixed decene,the components with small steric hindrance,terminal double bond,and substituents far away from the double bond can conduct coordination insertion.The main insertion mode is 1,2-insertion,and then PAO is obtained by β-H elimination.关键词
茂金属/催化/混合癸烯/选择性低聚/基础油Key words
metallocene/catalysis/mixed decenes/selective oligomerization/base oil分类
化学工程引用本文复制引用
李洪鹏,王玉龙,赵思萌,刘通,乔韦军..茂金属催化混合癸烯选择性低聚制备润滑油基础油[J].石油化工,2025,54(4):481-486,6.基金项目
中国石油天然气股份有限公司资助项目(2021DJ5901) （2021DJ5901）
中国石油天然气集团公司资助项目(2023ZZ34). （2023ZZ34）
