(C_2H_5)_2AlCl/TiCl_4催化1-癸烯聚合制备高黏度指数润滑油  

Study on oligomerization of 1-decene to high viscosity index base oil catalyzed by (C_2H_5)_2AlCl/TiCl_4

作　　者：申志明[1] 蒋山[2] 郝策[1] 张婕[2] 阎圣刚[2] 李刚月[2] 

机构地区：[1]大连理工大学精细化工国家重点实验室,辽宁大连116012 [2]大连海事大学高分子材料研究所,辽宁大连116026

出　　处：《工业催化》2009年第12期32-36,共5页Industrial Catalysis

基　　金：国家自然科学基金项目(20503004)

摘　　要：以(C_2H_5)_2AlCl/TiCl_4为催化剂研究了1-癸烯聚合制聚烯烃基础油。比较烯烃原料和溶剂对聚α-烯烃性能的影响,探讨催化剂用量、Al与Ti物质的量比、反应时间和反应温度等工艺条件对合成油性能的影响。结果表明,(C_2H_5)_2AlCl/TiCl_4催化剂对1-癸烯聚合具有较高的活性;溶剂极性越大,聚α-烯烃的枝化度越大,从而导致黏度指数降低。100℃的运动黏度随着Al与Ti物质的量比不同而变化,因此,可以通过调节Al与Ti物质的量比,制备各种黏度的聚α-烯烃。以(C_2H_5)_2AlCl/TiCl_4为催化剂,1-癸烯聚合的最佳反应条件:反应温度80℃,反应时间4 h,催化剂用量为反应物总质量的4.0%,此条件下聚α-烯烃收率为75.6%,黏度指数高达173。Oligomerization of 1-decene catalyzed by （C2H5 ）2AlCl/TiCl4 catalyst for preparation of poly-alpha-olefins（PAO） base oil was studied. Effects of olefins and solvents on properties of PAO and of catalyst dosage, A1/Ti mole ratio, reaction time and reaction temperature on properties of the base oil were investigated. The results showed that the （C2H5 ）2AIC1/TiCl4 catalyst exhibited high activity in oligomerization of 1-decene ; the higher the solvent polarity, the higher the branching degree of PAO, and hence lowering the viscosity index; dynamic viscosity of PAO at 100 ℃ increased dramatically with Al/Ti mole ratio of the （C2H5）2A;Cl/TiCl4 catalyst, therefore, PAO with variety of viscosity could be prepared by adjusting A1/Ti mole ratio of the （C2H5）2AlCl/TiCl4 catalyst. Optimal reaction condition for （ C2H5 ） 2AlCl/TiCl4 was as follows ： reaction temperature 80 ℃, reaction time 4 h, catalyst mass fraction in the reactants 4.0%. PAO yield of 75.6% and viscosity index of as high as 173 were obtained under the optimal condition.

关 键 词：催化化学 (C2H5)2AlCl/TiCl4催化剂 黏度指数 1-癸烯聚合 基础油 

分 类 号：TQ426.95[化学工程] TE626.3[石油与天然气工程—油气加工工程]