离子液体催化合成高黏度指数基础油工艺研究  

Study of Synthetic Process of High Viscosity Index Base Oil with Ionic Liquid as Catalyst

作　　者：王维伟[1] 蒋山[1] 王永彬[2] 夏顺八 沈岩[1] 徐久军[1] 

机构地区：[1]大连海事大学船机修造工程交通运输行业重点实验室,辽宁大连116026 [2]中国北方发动机研究所,天津300400

出　　处：《润滑与密封》2015年第11期19-22,共4页Lubrication Engineering

基　　金：中央高校基本科研业务费专项资金项目(3132014323)

摘　　要：为制备高黏度指数合成基础油,以1-癸烯为齐聚原料、[Emim]Cl/Al Cl3离子液体为催化剂合成聚a-烯烃基础油,考察[Emim]Cl/Al Cl3摩尔比、催化剂用量、反应温度、反应时间和原料含水量对反应产物性能及收率的影响。结果表明,提高催化剂Al Cl3:[Emim]Cl摩尔比或降低反应温度,合成润滑油的黏度增加;增加催化剂用量可提高产物黏度,但会增加异构化等副反应,降低产物黏度指数;反应原料中含水量变化对聚合度有重要影响,但黏度指数保持稳定。在Al Cl3/[Emim]Cl摩尔比为2∶1,催化剂质量分数为10%,反应温度为60℃,反应时间4 h的条件下,合成油的100℃运动黏度在10.34 mm2/s以上,黏度指数高于143,适合作为柴油机多级润滑油基础油。For the production of high viscosity index lubricating base stock, 1-decene was used to synthesize poly α-olefin with [ Emim ] Cl/AlCl3 ionic liquid as catalyst.The influences of AlCl3 and [ Emim ] Cl molar ratio, catalyst dosage, reaction temperature, reaction time and reactant water content on the product property and yield were studied.The experimental results indicate that increasing the molar ratio of AlCl3 and [ Emim] Cl or lowering reaction temperature will increase the viscosity of base oil.Excessive catalyst will leadto isomerization of product while increasing the viscosity.Water plays an important role in the degree of polymerization without significant effect on viscosity index of product.When molar ratio of AlCl3 and [ Emim] Cl is 2 ： 1 ,catalyst weight is 10% ,reaction temperature is 60 ℃ ,reaction time is 4 h, the synthesized PAO,with viscosity above 10. 34 mm^2/s at 100 % and viscosity index higher than 143, is ideal to be the base stock of muhigrade lube oil for diesel engine.

关 键 词：离子液体 聚a-烯烃 合成基础油 

分 类 号：TK428.9[动力工程及工程热物理—动力机械及工程]