低温脂肪酶酶促酯交换制备生物柴油  

Biodiesel production by low temperature lipase catalyzed transesterification

作　　者：张学林[1] 唐湘华[1] 李俊俊[1] 宋拓[1] 慕跃林[1] 许波[1] 杨云娟[1] 黄遵锡[1] 

机构地区：[1]云南师范大学生命科学学院,生物能源持续开发利用教育部工程研究中心,昆明650500

出　　处：《中国油脂》2013年第2期66-68,共3页China Oils and Fats

基　　金：科技部国家高技术研究发展计划(2008AA02Z202)

摘　　要：以菜籽油为原料,实验室自制脂肪酶为催化剂,对在低温条件下甲醇与菜籽油进行酯交换反应制备生物柴油的工艺进行了探索研究。通过单因素实验和正交实验,重点考察了醇油摩尔比、酶添加量、反应时间、反应温度和水添加量等因素对酯交换反应的影响。结果表明,反应的最佳优化条件为:醇油摩尔比4∶1,酶添加量105 U/g,反应温度20℃,反应时间12 h,水添加量为油质量的20%。在此条件下,菜籽油的脂肪酸甲酯转化率可达97%左右。The production of biodiesel from rapeseed oil by lipase catalyzed transesterification with metha- nol at low temperature was studied. The effects of molar ratio of methanol to oil, dosage of lipase, reaction time, reaction temperature and water dosage on transesterification were studied by single factor experiment and orthogonal experiment. The results showed that the optimal conditions were as follows：reaction tem- perature 20 ~C, reaction time 12 h, molar ratio of methanol to oil 4： 1, dosage of lipase 105 U/g and water dosage 20%. Under the optimal conditions ,the conversion rate of fatty acid methyl ester reached 97%.

关 键 词：菜籽油 低温脂肪酶 酯交换 生物柴油 

分 类 号：TE667[石油与天然气工程—油气加工工程]