Coal Tar Derived Metallocene Catalyst for Polymerization of 1-Decene into Low-viscosity Poly-α-Olefin Lubricating Base Oil  

作　　者：Wang Jiannan Liu Man Chen Yilong Mohamed Abbas Chen Jiangang 

机构地区：[1]State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]State Key Laboratory of Biomass Thermal Chemistry Technology,Wuhan 430223,China [4]Ceramics Department,National Research Centre,EI-Bohouth Str 12622,Cairo,Egypt [5]Faculty of Chemistry,Jagiellonian University,Ul.Gronostajowa 2,Krakow,30-387,Poland

出　　处：《China Petroleum Processing & Petrochemical Technology》2022年第3期52-60,共9页中国炼油与石油化工（英文版）

基　　金：supported by the Chinese Academy of Sciences Strategic Pilot Science and Technology Special (Class A)(XDA21020000);the National Natural Science Foundation of China (22072175,21673272);support from the Ulam program,awarded by the Polish National Agency for Academic Exchange (NAWA),Poland,under project No.PPN/ULM/2020/1/00006/DEC/1

摘　　要：The production of poly-α-olefins(PAOs)has attracted attention due to their excellent viscosity-temperature dependence,wear characteristics,oxidative properties,and high thermal stability.In this study,indene extracted during coal tar refining was used as a raw material to synthesize a bis(indenyl)zirconium dichloride metallocene catalyst.A PAO with low viscosity and a high viscosity index was produced via the oligomerization of 1-decene in the presence of both the prepared metallocene and a methylaluminoxane(MAO)co-catalyst.Notably,the effects of different synthesis reaction parameters,such as Al:Zr ratio,amount of catalyst,and reaction temperature,on the conversion ratio and product selectivity were investigated in detail.The produced PAO was thoroughly characterized using Fourier-transform infrared,^(13)C,and^(1)H nuclear magnetic resonance spectroscopies;gas chromatography;and viscosity measurements.At 70℃,the metallocene catalyst created more stable active sites.In addition,the alkylation effect of MAO was noticeable.Interestingly,the obtained catalysis results demonstrated that a high conversion ratio of~93%was achieved at a low reaction temperature of 70℃,with a catalyst dosage of 0.0848 mmol and Al:Zr ratio of 8.48mmol:0.0848mmol.Moreover,under these optimal conditions,the kinematic viscosity of PAO was 4.25 mm2/s at 100℃,and the viscosity index was 139,indicating good viscosity-temperature properties.

关 键 词：lubricant base oil poly-α-olefin coal tar metallocene catalyst POLYMERIZATION 

分 类 号：TE626.9[石油与天然气工程—油气加工工程]