典型文献
Coal Tar Derived Metallocene Catalyst for Polymerization of 1-Decene into Low-viscosity Poly-α-Olefin Lubricating Base Oil
文献摘要：
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, 13C, and 1H 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.
文献关键词：
中图分类号：
作者姓名：
Wang Jiannan;Liu Man;Chen Yilong;Mohamed Abbas;Chen Jiangang
作者机构：
State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China;University of Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of Biomass Thermal Chemistry Technology,Wuhan 430223,China;Ceramics Department,National Research Centre,EI-Bohouth Str 12622,Cairo,Egypt;Faculty of Chemistry,Jagiellonian University,Ul.Gronostajowa 2,Krakow,30-387,Poland
文献出处：
引用格式：
[1]Wang Jiannan;Liu Man;Chen Yilong;Mohamed Abbas;Chen Jiangang-.Coal Tar Derived Metallocene Catalyst for Polymerization of 1-Decene into Low-viscosity Poly-α-Olefin Lubricating Base Oil)[J].中国炼油与石油化工（英文版）,2022(03):52-60
A类：
Metallocene,Decene,Lubricating,PAOs,indenyl,metallocene,decene,methylaluminoxane,0848mmol
B类：
Coal,Tar,Derived,Catalyst,Polymerization,into,Low,viscosity,Olefin,Base,Oil,production,poly,olefins,has,attracted,attention,due,their,excellent,temperature,dependence,wear,characteristics,oxidative,properties,high,thermal,stability,this,study,indene,extracted,during,coal,tar,refining,was,used,raw,material,synthesize,bis,zirconium,dichloride,catalyst,low,produced,via,oligomerization,presence,both,prepared,MAO,Notably,effects,different,synthesis,reaction,parameters,such,Zr,ratio,amount,conversion,selectivity,were,investigated,detail,thoroughly,characterized,using,Fourier,transform,infrared,13C,1H,nuclear,magnetic,resonance,spectroscopies,gas,chromatography,measurements,At,created,more,stable,active,sites,addition,alkylation,noticeable,Interestingly,obtained,catalysis,results,demonstrated,that,achieved,dosage,Moreover,under,these,optimal,conditions,kinematic,mm2,indicating,good
AB值：
0.563376
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