石油炼制与化工 ›› 2012, Vol. 43 ›› Issue (2): 15-18.

• 基础研究 • 上一篇    下一篇

离子液体催化合成甘油单酯及抗磨性能研究

庞小英1,4,姚志龙2,4,刘森2,4,闵恩泽3,4   

  1. 1. 北京化工大学,北京 100029
      2. 北京石油化工学院
      3. 中国石化石油化工科学研究院   4. 恩泽生物质精细化工实验室(北京市重点实验室)
  • 收稿日期:2011-07-06 修回日期:2011-08-23 出版日期:2012-02-12 发布日期:2012-01-30
  • 通讯作者: 姚志龙 E-mail:yaozl@bipt.edu.cn

SYNTHESIS AND ANTI-WEAR PERFORMANCE OF MONOGLYCERIDES CATALYZED BY IONIC LIQUID

  • Received:2011-07-06 Revised:2011-08-23 Online:2012-02-12 Published:2012-01-30

摘要: 以脂肪酸和甘油为原料、1,4-二氧六环为溶剂、自制离子液体为催化剂合成甘油单酯。考察甘油与脂肪酸摩尔比、催化剂用量、反应时间、溶剂用量和反应温度对酯化反应的影响,经单因素实验得到的最佳工艺条件为:甘油与脂肪酸摩尔比7:1,催化剂用量为原料总质量的8%,溶剂用量为原料总质量的50%,反应温度140~150 ℃,磁力搅拌冷凝下反应3 h。对甘油单酯进行抗磨性能的评价结果表明,在低硫柴油中加入80 μg/g甘油脂肪酸酯可以符合EN590欧洲车用柴油标准的要求。

关键词: 润滑添加剂  , 脂肪酸 , 甘油 , 甘油单酯 , 离子液体

Abstract: The synthesis of monoglycerides from fatty acids and glycerol catalyzed by self-made ionic liquid was investigated using 1,4-dioxane as solvent. The optimal process conditions were obtained by single factor experiments as follows: glycerin/ fatty acids molar ratio of 7, the amount of catalyst and solvent (based on the total materials) was 8% and 50%, respectively, reaction temperature in the range of 140—150℃ and a reaction time of 3 h. The abrasion resistance of monoglycerides was evaluated, and the results showed that when low sulfur diesel fuel containing 80 μg/g monoglycerides, it could meet the abrasion resistance requirement of EN 590 Standard for automobile diesel fuel in Europe.