石油炼制与化工

• 加工工艺 • 上一篇    下一篇

AlCl3/TiCl4催化癸烯聚合制润滑油基础油的研究

曲敏 蒋山 阎圣刚 李刚月   

  1. 大连海事大学机电与材料工程学院 大连海事大学机电与材料工程学院 大连海事大学机电与材料工程学院
  • 收稿日期:2008-06-06 修回日期:1900-01-01 出版日期:2008-12-12 发布日期:2008-12-12
  • 通讯作者: 蒋山

OLIGOMERIZATION OF DECENE OVER AlCl3/TiCl4 CATALYST TO PREPARE SYNTHETIC LUBE BASE OIL

  

  • Received:2008-06-06 Revised:1900-01-01 Online:2008-12-12 Published:2008-12-12

摘要: 以AlCl3/TiCl4为催化剂对癸烯聚合制润滑油基础油进行了研究。考察了催化剂用量、Al与Ti摩尔比、反应时间和反应温度等工艺条件对合成油性质的影响,并比较了不同催化剂、不同烯烃原料对聚α-烯烃(PAO)性质的影响。结果表明,癸烯聚合制备PAO,AlCl3/TiCl4是较适宜的催化剂。PAO收率随着AlCl3/TiCl4催化剂用量的增大、反应温度的升高以及反应时间的延长而提高,但随着Al与Ti摩尔比的增加而迅速下降;粘度指数在所考察的条件范围内均较高;100 ℃下的运动粘度随着Al与Ti摩尔比的变化而急剧变化,因此可以根据需求,通过调节Al与Ti摩尔比,可制备各种粘度等级的PAO产品。

关键词: 四氯化钛, 癸烯, 三氯化铝, 聚合反应, 合成, 润滑油

Abstract: The polymerization of decene to prepare synthetic lube base oil over AlCl3/TiCl4 catalyst was studied. Various catalyst systems and olefin feeds were compared and the effects of catalyst dosage, Al/Ti mole ratio, reaction temperature and reaction time on the properties of obtained polyalpha-olefin (PAO) were investigated. Test results showed that AlCl3/TiCl4 catalyst was the preferred catalyst system for polymerization of decene to prepare PAO. The PAO yield increased with the increase of catalyst dosage, reaction temperature and reaction time; yet PAO yield decreased significantly with the increase of Al/Ti mole ratio. The viscosity index of PAO under the test conditions was good. However, the kinematic viscosity (at 100℃) of PAO changed sharply with the change of Al/Ti mole ratio, thus different grades of PAO products having various viscosities could be prepared by adjusting the Al/Ti mole ratio of catalyst.

Key words: titanium tetrachloride, decene, aluminium chloride, polymerization reaction, synthesis, lubricant