中文摘要：

以茂金属为主催化剂、三异丁基铝和有机硼化物为助催化剂，煤制α-烯烃为原料，采用釜式聚合法合成了低黏度聚α-烯烃基础油（PAO）。通过考察主催化剂及助催化剂用量、反应温度、反应时间对煤制α-烯烃转化率以及产物分布的影响，确定最佳工艺条件为：主催化剂／煤制”烯烃质量比为1×10^-4，Al／Zr摩尔比为9，有机硼化物／茂金属质量比为2，反应温度115℃，反应时间2．5h。在该工艺条件下，所制备的PA0基础油的运动黏度（100℃）为8．15mm^2／s，黏度指数158，倾点-54℃，闪点286℃，诺亚克蒸发损失为3．46％，是一种低黏度、高黏度指数、低倾点、高闪点、低蒸发损失的聚”烯烃，产品主要由四聚体、五聚体和少量的三聚体、六聚体组成，该工艺具有较好的试验重复性。

英文摘要：

The low viscosity PAO was synthesized by the oligomerization of a-olefin from coal with metallocene catalyst system in a kettle. The effects of reaction conditions, such as dosage of the catalyst and co-catalyst, reaction temperature and time on the conversions of raw material and the components of PAO were examined. It is found that the optimum conditions are： mass ratio of metallocene/a-olefin of 1×10^-4 , Al/Zr mole of 115℃ and 2.5 h. ratio of 9, the mass ratio of organic boride/metallocene of 2, reaction temperature Under the optimum conditions, PAO with viscosity of 8.15 mm2/s at 100 ~C, viscosity index of 158, pour point of -54℃, flash point of 286℃, Noack loss of 3.46% are obtained. The chromatographic analysis indicates that the produced PAO mainly consists of tetramer, pentamer with a small amount of trimer and hexamer. The same results are well repeated.