咪唑型离子液体催化α-烯烃聚合制备PAO的研究  

Research on the catalysis ofα-olefin polymerization to synthesize PAO using imidazolium ionic liquids

作　　者：石飞宇 张丹[1] 李君华[1] 钱建华[1] SHI Feiyu;ZHANG Dan;LI Junhua;QIAN Jianhua(School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《应用化工》2024年第8期1864-1867,共4页Applied Chemical Industry

基　　金：辽宁省重点研发计划项目(2020JH2/10100008);辽宁省教育厅项目(L2020004);抚顺市“抚顺英才计划”项目(FSYC202201001);中央引导地方科技发展项目(2023JH6/100100047);辽宁省科技厅揭榜挂帅科技攻关专项(2021JH1/10400090)。

摘　　要：合成了3种化合物1-乙烯基-3-苄基咪唑氯盐([VBzIm]Cl)、1-苄基-3-甲基咪唑氯盐([BzMIm]Cl)、1-苄基-3-乙基咪唑氯盐([BzEIm]Cl),分别与无水氯化铝(AlCl_(3))制备成离子液体催化剂(IL),探讨了阴阳离子摩尔比、反应温度、反应时间以及催化剂用量对PAO性能的影响。结果表明,以[VBzIm]Cl和AlCl_(3)制备的离子液体催化剂,有效地促进了1-癸烯的聚合反应,制得的聚α烯烃基础油(PAO)中,三聚体和四聚体的含量明显增加,优化实验条件,催化剂阴阳离子比例2∶1,催化剂质量分数7%,反应温度为80℃,反应时间3 h,1-癸烯的转化率在90%以上,聚α烯烃基础油40℃运动黏度为52.9 mm^(2)/s,100℃运动黏度为8.7 mm^(2)/s,黏度指数为142。Ionic liquid catalysts were synthesized using 1-vinyl-3-benzyl imidazolium chloride,1-benzyl-3-methyl imidazolium chloride,and 1-benzyl-3-ethyl imidazolium chloride as cations,with anhydrous aluminum chloride(AlCl_(3))serving as the anion.It was observed that the catalyst synthesized from 1-vinyl-3-benzyl imidazolium chloride and AlCl_(3)demonstrated enhanced selectivity.The influence of anion/cation molar ratio,reaction temperature,reaction time and catalyst dosage on PAO performance.When the catalyst’s anion to cation molar ratio was maintained at 2∶1,and the reaction conditions were set at a temperature of 80℃,a duration of 3 h,and a catalyst loading of 7%,an outstanding catalytic performance was achieved.Under these conditions,the conversion rate of 1-decene surpassed 90%,resulting in the production of high viscosity index base oil.This oil exhibited a kinematic viscosity of 52.9 mm^(2)/s at 40℃and 8.7 mm^(2)/s at 100℃,along with a viscosity index of 142.

关 键 词：离子液体催化剂 1-癸烯 聚合 基础油 

分 类 号：TQ203.3[化学工程—有机化工] TQ016.1