关键词: 1-癸烯, 聚α-烯烃, 三氟化硼, 润滑油基础油, 放大

Abstract: Currently low viscosity PAO(poly-alpha-olefin) synthesis technology monopoly is acquired by foreign producers,and domestic researches in this area are rarely reported. Using 1-decene as raw material,we carried out polymerization experiments in a 1L autoclave and investigated the effects of process conditions of reaction pressure,reaction temperature,reaction time and initiator on the conversion rate and the distribution of the polymerization product. The pilot test was carried out with the optimized conditions in 200L low viscosity PAO pilot plant. Experimental results showed that when the reaction was taken place at pressure of 0.2MPa,temperature of 20℃,catalyst addition of 850g,initiator addition of 685mL(mass ratio of the 1-decene was 0.5%),reaction time of 2h,the conversion rate was more than 95% and the key component of trimers and tetramers content were greater than 80%,and the released reaction heat was approximately 6.3×10⁴kJ. The kinematic viscosity of the obtained product at 100℃ was 4.3mm²/s,and the viscosity index was 132,while low-temperature dynamic viscosity at -40℃ was 2318mm²/s,the pour point was -60℃.The key performance indicators of the obtained product were comparable to those of foreign products.

Key words: 1-decene, poly-alpha-olefins, boron trifluoride, lubricant base oil, scale-up