Brφnsted酸性功能化离子液体催化合成大豆油生物柴油  

Preparation of soybean oil biodiesel catalyzed by Brφnsted acid functionalized ionic liquid

作　　者：申志兵[1] 延晨政哲 武秀丽[1] 何力擎 赵太萍 

机构地区：[1]西安石油大学化学化工学院,石油炼化工程技术研究中心,西安710065

出　　处：《中国油脂》2017年第8期44-48,共5页China Oils and Fats

基　　金：西安石油大学博士启动基金项目(2014BS19);国家级大学生创新创业训练计划项目(201510705248);陕西省大学生创新创业训练计划项目(1331)

摘　　要：制备一种Brφnsted酸性功能化离子液体并进行表征,然后将该离子液体用于催化合成大豆油生物柴油。结果表明:该离子液体酸性与浓硫酸十分接近,且具有较好的稳定性;该离子液体具有良好的催化性能,在离子液体催化剂与大豆油摩尔比1∶10、甲醇与大豆油摩尔比12∶1、反应时间5 h、反应温度140℃的最佳条件下,生物柴油产率达到96.57%,并且该离子液体重复使用7次生物柴油产率保持在95%以上;通过该方法制得大豆油生物柴油的主要理化指标基本达到-10#柴油的国Ⅴ标准。A kind of Brcpnsted acid functionalized ionic liquid was prepared and characterized, and it was used to produce biodiesel from soybean oil. The results showed that the acidity of ionic liquid was compa- rable to the acidity of the concentrated sulfuric acid and it had a good stability. The ionic liquid had good catalytic activity for producing biodiesel from soybean oil. The yield of biodiesel was up to 96.57% under the optimal conditions of molar ratio of ionic liquid to soybean oil 1： 10, molar ratio of methanol to soy- bean oil 12： 1, reaction time 5 h, and reaction temperature 140℃. The yield of biodiesel kept above 95% after the ionic liquid was recycled for seven times. The primary physicochemical indexes of the soy- bean oil biodiesel met the state V standard of- 10 # diesel.

关 键 词：BRΦNSTED酸 功能化离子液体 大豆油 生物柴油 

分 类 号：O643.36[理学—物理化学] TE667[理学—化学]