离子液体催化多乙基萘基础油的合成及润滑性能研究  

Synthesis of polyethylnaphthalenes base oil catalyzed by ionic liquid and its lubricating properties

作　　者：李媛媛 汤琼[1] 陈晨 左志军[2] 刘雷[1] 董晋湘[1] LI Yuan-yuan;TANG Qiong;CHEN Chen;ZUO Zhi-jun;LIU Lei;DONG Jin-xiang(College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan 030024,China;State Key Laboratory of Clean and Efficient Coal Utilization,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学化学工程与技术学院,山西太原030024 [2]太原理工大学省部共建煤基能源清洁高效利用国家重点实验室,山西太原030024

出　　处：《燃料化学学报（中英文）》2023年第5期635-643,共9页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(U1910202,21978194);山西省重点研发计划项目(202102090301005);山西省青年基金(202103021223064)资助。

摘　　要：本实验以焦化萘和乙烯为原料,以有机铵盐/金属氯化物离子液体作为催化剂,通过烷基化反应合成多乙基萘润滑基础油。通过调控离子液体阴/阳离子的组分发现,AlCl_(3)/Et_(3)NHCl离子液体对萘与乙烯烷基化反应表现出良好的催化性能。通过对反应条件的优化(催化剂用量、反应时间和温度),合成了两种不同组成的基础油PEN-1(单/二乙基萘占92.9%)和PEN-2(多乙基萘占91.3%)。润滑性能测试结果表明,烷基侧链数目较多的PEN-2基础油表现出良好的摩擦学性能,且其抗磨损性能优于商用烷基萘基础油AN5,展现出良好的应用前景。Polyethylnaphthalenes lubricating base oil were synthesized by alkylation of cooking naphthalene with ethylene using organic ammonium salt/metal chloride ionic liquid as catalyst.It was found that the AlCl_(3)/Et_(3)NHCl ionic liquid showed better active in the naphthalene alkylation with ethylene by regulating the composition of anions and cations in ionic liquids.Two different compositions of polyethylnaphthalenes base oils PEN-1(92.9% of monoand di-ethylnaphthalenes)and PEN-2(91.3% of polyethylnaphthalenes)were synthesized by optimizing reaction conditions(catalyst dosage,reaction time and temperature).The lubrication test results showed that PEN-2 base oil with a large number of alkyl side chains exhibited good tribological properties and showed better wear resistance than the commercial alkylnaphthalenes base oil AN5,showing a good application prospect.

关 键 词：萘 离子液体 烷基化 合成基础油 润滑性能 

分 类 号：TQ241.5[化学工程—有机化工]