固载磷钨酸催化下用大豆油和甲醇制备生物柴油  

Preparation of bio-diesel from soybean oil and methanol by esterification on supported phosphato-tungstic heteropoly acid catalyst

作　　者：吴松[1] 池淑梅 吴凯[3] 

机构地区：[1]大庆石油学院化学化工学院,黑龙江大庆163318 [2]大庆创业集团九龙实业化工分公司,黑龙江大庆163714 [3]大庆石化公司炼油厂,黑龙江大庆163714

出　　处：《大庆石油学院学报》2009年第3期80-82,92,共4页Journal of Daqing Petroleum Institute

摘　　要：为解决当前制备生物柴油时大量废酸、废碱液的排放,提高反应酯转化率,以固载磷钨酸为催化剂,以大豆油与甲醇为原料制备生物柴油.考察了醇与油的物质的量比、催化剂质量分数、反应时间、反应温度等对酯转化率的影响,得出反应最佳操作条件为:n(醇)∶n(油)为6∶1,催化剂质量分数为原料油的4%,反应时间为2 h,反应温度为50℃.在此条件下,反应酯转化率可达94.5%,并且催化剂可以重复使用.In order to reduce the emissions of waste liquid and enhances the rate of esterification, the catalyst of supported phosphato-tungstic heteropoly acid was used during the preparation of bio-diesel by soybean oil and methanol. The paper studied the effect of the methanol/oil mole ratio, the catalyst dosage, the reaction time and temperature. The results indicated that the optimal condition were as follows: the methanol/oil mole ratio is 6∶1, the catalyst dosage is 4%, the reaction time is 2 h, the reaction temperature is 50 ℃. The esterification rate is 94.5%. the catalyst may be reused.

关 键 词：生物柴油 固载磷钨酸催化剂 酯转化反应 大豆油 甲醇 

分 类 号：TQ314.24[化学工程—高聚物工业]