Alkyl-tetralin base oils synthesized from coal-based chemicals and evaluation of their lubricating properties  

作　　者：Chen Chen Qiong Tang Hong Xu Mingxing Tang Xuekuan Li Lei Liu Jinxiang Dong 

机构地区：[1]College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan 030024,China [2]Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China

出　　处：《Chinese Journal of Chemical Engineering》2023年第6期20-28,共9页中国化学工程学报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(U1910202,21978194,22078219 and 22072173);the Fund for Shanxi“1331 Project”;the Key Research and Development Program of Shanxi Province(202102090301005)。

摘　　要：Naphthenic base oil is an important lubricating base oil and very scarce in the global petroleum resources.Herein,a series of alkylated tetralin fluids similar to naphthenic base oils were produced by the alkylation of tetralin and a-olefins(n-hexene,n-octene,n-decene)with ionic liquid Et_3NHCl/AlCl_(3)as the catalyst,where the applied raw materials are totally derived from the coal chemical industry.The product composition could be controlled by adjusting the feeding ratio of tetralin and olefin.The synthetic fluids were evaluated as lubricating base oils to reveal the structure-property correlations.Their principal physicochemical and tribological properties depend on the chain-length of a-olefins and the number of alkyl groups onto the aromatic rings.Bis-(octyl-or decyl-)alkyl tetralin exhibited good properties in terms of viscosity,thermo-oxidation stability and pour point,as well as friction-reducing and anti-wear performance,showing great potential for producing naphthenic base synthetic oils from coal-based chemicals.

关 键 词：Alkylated tetralin Product engineering Ionic liquids Structure-property correlations Lubricants Preparation 

分 类 号：TQ536[化学工程—煤化学工程]