活性炭负载固体碱催化制备生物柴油研究  

Production Biodiesel by Solid Base Catalyst Supported on Granular Active Carbon

作　　者：曹书勤[1] 金春雪[1] 缑星[1] 

机构地区：[1]信阳师范学院化学化工学院,河南信阳464000

出　　处：《河南师范大学学报（自然科学版）》2011年第4期95-97,101,共4页Journal of Henan Normal University(Natural Science Edition)

基　　金：河南省科技厅科技攻关项目(2006020012)

摘　　要：大豆油在以活性炭为载体的负载型固体碱催化剂(KOH/C,K2CO3/C,KNO3/C)的作用下与甲醇酯交换反应制备生物柴油.考察了催化剂用量、醇油摩尔比、反应温度、时间等因素对产物收率的影响.结果表明:以上3种催化剂都可以催化酯交换反应,其中KOH\C的催化效果最好.当催化剂的质量为大豆油的2%、醇油摩尔比为10∶1、反应温度为65℃、反应时间为1.5 h,产物的收率可达92(以上.Biodiesel is synthesized by transesterification of bean oil and methanol under support catalyst which is pre- pared by loading KOH, K2 CO3 and KNO3 on active carbon. The effect of various reaction parameters such as catalyst content, molor ratio of methanol to oil, reaction temperature and reaction time is investigated. The results show： that all of the three catalyst can well catalyse the transesterification, of which KOH／C is best. The optimum reaction conditions are： the amount of base loading on catalyst is 2% of the amount of oil; the ratio of methanol to oil is 10 ： 1; the reaction temperature is 65 ℃ and the time is 1.5 h. The yield of biodiesel is over 92%.

关 键 词：活性炭 固体碱 酯交换 生物柴油 

分 类 号：U473.1[机械工程—车辆工程]