离子液体催化1-癸烯齐聚制备聚α-烯烃的研究  

STUDY ON 1-DECENE OLIGOMERIZATION CATALYZED BY IONIC LIQUIDS TO PREPARE POLY-α-OLEFINS

作　　者：张耀[1] 段庆华[1] 刘依农[1] 李玲[1] 

机构地区：[1]中国石化石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2011年第11期62-65,共4页Petroleum Processing and Petrochemicals

摘　　要：研究了离子液体催化体系中1-癸烯齐聚制备聚α-烯烃合成油的反应,考察了离子液体中三氯化铝摩尔分数、反应条件对聚α-烯烃合成油性能的影响。结果表明:在三氯化铝摩尔分数大于0.57、温度低于60℃条件下,离子液体对1-癸烯齐聚反应表现出较好的催化效果,合成油100℃下具有40mm2/s以上的运动黏度;试验发现反应温度是影响合成油黏度的主要因素,降低反应温度可减少链转移反应的发生,提高合成油黏度;试验中还发现,反应过程中存在异构化等副反应,且副反应随离子液体用量增加而加剧;此外,烯烃聚合物不溶于离子液体,易于分离,催化剂活性保持不变,可重复利用。Oligomerizafion of 1-decene was carried out with ionic liquids as catalyst to obtain poly-a-olefins synthetic oil （PAO）. The influences of AlCl3 molar fraction in ionic liquids, reaction temperature, reaction time and the amount of catalyst on the catalytic performance were studied. The experimental results showed that under the conditions of AlCl3 molar fraction more than 0. 57 and reaction temperature less than 60 ℃ ,ionic liquids displayed good catalytic performance for the oligomerization of 1-decene,the kinematic viscosity of the prepared PAO was over 40 mm^2/s （100 ℃）. The kinematic viscosity of PAO was largely depended on the reaction temperature,which would influence the chain-transfer reactions. Side-reactions, such as isomerization, were observed and were enhanced significantly with the increase of ionic liquids. In addition, the produced PAO were insoluble in the ionic liquids, the separation was convenient and the catalyst could be used repeatedly without obvious deactivation

关 键 词：离子液体 聚α-烯烃合成油 齐聚 支化度 

分 类 号：O632.12[理学—高分子化学]