利用动物脂肪酯交换反应制备生物柴油的试验研究  

Experimental study on biodiesel production through transesterification reaction from tallow

作　　者：徐桂转[1] 宋华民[1] 陈萍[1] 方萍[1] 张百良[1] 

机构地区：[1]河南农业大学机电工程学院,农业部可再生能源重点实验室,郑州450002

出　　处：《农业工程学报》2008年第6期230-233,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：河南省教育厅自然科学基础研究项目(2008B480003);河南省杰出人才创新基金项目资助(0321001300)

摘　　要：该文以牛油为原料,在KOH的催化作用下与甲醇酯交换反应制备生物柴油。采用正交试验与人工神经网络相结合的试验方法,考察了醇油摩尔比、催化剂用量、反应时间和反应温度等操作条件对酯交换反应的影响,得到了最优工艺条件,即反应温度70℃,醇油摩尔比10.5︰1,催化剂用量1.1%(占油脂质量的百分数),反应时间90min。经试验验证,利用神经网络优化后的酯交换率达到94.16%,高于正交试验的结果93.17%。The biodiesel production through transesterification reaction from tallow with methanol was studied, and KOH was used as catalyst. Combined artificial neural network with orthogonal experimental design, the reaction factors such as molar ratio of methanol to oil, catalyst amounts, reaction time and reaction temperature were investigated. On the basis of the orthogonal experimental results, the reaction conditions were simulated and optimized using artificial neural network, and the optimum reaction conditions were obtained as follows： reaction temperature was 70℃, molar ratio of methanol to oil was 10.5 ： 1, the amount of catalyst was 1.1% （based on the weight of oil） and reaction time was 90min. Under the optimum reaction conditions, the transesterification reaction conversion ratio is 94.16%, which is higher than the result of 93.17% obtained from orthogonal experiments.

关 键 词：牛油 酯交换 生物柴油 神经网络 

分 类 号：TQ225.2[化学工程—有机化工]