摘要
制备了对水稳定性好的[BPy]HSO4离子液体,对其催化蓖麻油酯交换反应制备生物柴油进行了研究。在常压回流温度下,考察了醇油摩尔比、催化剂用量(催化剂质量/油质量)及反应时间对酯交换反应的影响。在反应温度为常压回流温度、醇油摩尔比为9∶1、催化剂用量为8%、反应时间为8 h的优化工艺条件下,甘油收率平均可达93%。产物中甲酯质量分数高达96.7%。催化剂可重复使用多次。
The water-stable ionic liquidHSO4 is prepared and the transesterification of castor oil to biodiesel catalyzed by the ionic liquid is studied.At reflux temperature and under atmospheric pressure,the effects of molar ratio of methanol to castor oil,catalyst dosage(catalyst mass/ oil mass)and reaction time on the transesterification are studied.Under the optimal conditions as 9∶1 of molar ratio of methanol to castor oil,8% of catalyst dosage and reacin at reflux temperature under atmospheric pressure for 8 ho...
出处
《现代化工》
CAS
CSCD
北大核心
2008年第S2期162-164,共3页
Modern Chemical Industry
基金
山西省科技攻关项目(2007031137)
山西省教育厅科技研发项目(20051272)
关键词
离子液体
蓖麻油
酯交换
生物柴油
ionic liquid
castor oil
transesterification
biodiesel
