咪唑类碱性离子液体催化大豆油制备生物柴油  

Preparation of biodiesel from soybean oil catalyzed by imidazolide basic ionic liquids

作　　者：范明明 李斯斯 杨雪 蒋平平 张萍波 周财源 郑洋 孙立伟 尤兴林 

机构地区：[1]江南大学食品胶体与生物技术教育部重点实验室,江南大学化学与材料工程学院,无锡214122

出　　处：《化工新型材料》2012年第10期115-117,146,共4页New Chemical Materials

基　　金：国家自然科学基金(21106054);教育部博士点新教师基金(20100093120003);中央高校基本业务费(JUSRP211A07)项目

摘　　要：合成了3种以咪唑为阴离子的新型强碱性离子液体([Bmim]Im,ChIm,[N4222]Im),并以其作为催化剂进行了大豆油酯交换制备生物柴油的研究。结果表明:这3种新型强碱性离子液体具有较高的催化活性。选取[Bmim]Im离子液体对反应条件进行了考察,在反应温度60℃,醇(甲醇)油摩尔比6∶1,催化剂用量(以大豆油质量分数为基准)3%,反应时间3h的工艺条件下,生物柴油的收率可达94.1%。[Bmim]Im可重复利用6次且稳定性性能较好,具有良好的重复利用性。Three novel basic ionic liquids （[Bmim]Im,Chlm,[N4222]Im）with an imidazolide anion group were synthesized. The effects of the novel catalysts on catalytic properties of biodiesel preparation were investigated. The results showed that three ionic liquids had good catalytic activity. Reaction conditions of [Bmim]Im ionic liquid were studied and showed that the yield of biodiesel oil can reach 94. 1% under the conditions of reaction temperature 60℃, molar ratio of methanol to oil 6：1,catalyst dosage 3%,and reaction time 3h. The[Bmim]Im were stable and could be reused for six time.

关 键 词：咪唑阴离子 离子液体 生物柴油 酯交换反应 

分 类 号：TE667[石油与天然气工程—油气加工工程]