菜籽毛油酯交换法制取生物柴油的研究  

Preparation of Biodiesel from Rapeseed Crude Oil by Transesterification

作　　者：周仪[1] 刘晓宇[1] 戴卫理[1] 高政[1] 吴谋成[1] 

机构地区：[1]华中农业大学食品科技学院,武汉430070

出　　处：《中国粮油学报》2008年第5期84-88,共5页Journal of the Chinese Cereals and Oils Association

基　　金：湖北省"十一五"重点科技攻关项目(2006AA201B32)

摘　　要：以菜籽毛油为原料,比较研究了以NaOH、浓硫酸和固体酸作为催化剂进行酯交换反应制备生物柴油的效果。运用单因素和正交实验确定了NaOH作为催化剂反应的最佳工艺条件。结果表明,NaOH作为催化剂效果最佳。反应最适宜的工艺条件为:毛油与甲醇的摩尔比为6∶1,催化剂用量为菜籽油质量的1.2%,反应温度为60℃,反应时间为2 h;在此最佳工艺条件下,酯交换的转化率达88.7%。The effects of transesterification for preparing biodiesel by using different catalysts （NaOH, H2SO4, and solid acid） were compared, using rapeseed crude oil as raw material. The optimal conditions were determined by single - factor and orthogonal matrix experiments. Results indicate that the best catalyzing effect is from NaOH and the optimal coitions are as follows： molar ratio of oil and methanol is 6 1, catalyst dosage is 1.2% of the crude oil, reaction temperature is 60 ℃, and reaction time is 2h. Under the optimal conditions, the transform rate of transesterification is 88.7%.

关 键 词：生物柴油 菜籽毛油 催化剂 酯交换 工艺条件 

分 类 号：TQ225.52[化学工程—有机化工] TE626.24[石油与天然气工程—油气加工工程]