亚临界甲醇中固体催化剂催化酯交换反应的活性比较  

Comparison of the activity of several solid catalysts on the transesterification in subcritical methanol

作　　者：宋成才[1] 齐永琴[1] 侯相林[1] 

机构地区：[1]中国科学院山西煤炭化学研究所

出　　处：《能源工程》2007年第6期27-29,共3页Energy Engineering

基　　金：山西省自然科学基金资助项目(2007011038)

摘　　要：对几种固体催化剂用于亚临界甲醇与大豆油的酯交换反应制备生物柴油的催化活性进行了研究。考察在不同催化剂作用下酯交换反应产物中脂肪酸甲酯（FAMEs）含量随反应时间的变化规律。结果表明。在醇油摩尔比为40，反应温度为180℃，反应压力为2～3MPa，催化剂用量为3g及反应时间为10min的条件下，K2O／γ-Al2O3催化酯交换反应的产物中FAMEs含量达90％。The activity of several solid catalysts, which catalyzed the transesterification of soybean oil and subcritical methanol to prepare biodiesel, was studied. The effects of different catalysts for the transesterification on the yield of biodiesel were investigated. The results showed that the content of fatty acid methyl esters reached 90% under the reaction condition of 40/1 ratio of methanol to oil, the temperature 180℃ , the pressure 2 -3MPa, 3g catalyst, reaction time of 10min and K2O/γ-Al2O3 as solid catalysts.

关 键 词：固体催化剂 亚临界甲醇 酯交换 生物柴油 催化活性 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]