废大豆油制备生物柴油工艺路线及研究  

The Processing Route and Experiment Study of Preparation of Bio-diesel with Waste Soybean Oil

作　　者：范碧英[1,2] 王昌梅[1] 陈玉保[1] 张无敌[1] 杨林 张成[1] 孙培培[1] 周晓庆[1] 柳静[1] 尹芳[1] 赵兴玲[1] 许玲[1] 刘士清[1] 

机构地区：[1]云南师范大学能源与环境科学学院,云南昆明650500 [2]同济大学现代农业科学与工程研究院,上海200092 [3]云南省玉溪市环境监测站,云南玉溪653100

出　　处：《安徽农业科学》2013年第2期811-813,共3页Journal of Anhui Agricultural Sciences

基　　金：云南省应用基础研究面上项目(2010CD050);云南省预算内投资计划(20102127和20111342);云南省工信委2011年度可再生能源发展专项资金项目(2011292);云南省教育厅科学研究基金重点项目(2011Z028)

摘　　要：[目的]为降低生产成本,寻找新的生物柴油生产工艺。[方法]以废大豆油为原料,先用脂肪酶水解大豆油,使其酸值达到(160±5)mgKOH/g油;然后以大豆油脂肪酸为原料,硫酸为催化剂,采用两步酯化法制备生物柴油。研究两步酯化法过程中浓硫酸用量、甲醇用量及流速对酯化率的影响。[结果]试验得出,第1步酯化甲醇的质量分数为80%,浓硫酸的质量百分数为0.7%,反应温度为(338±2)K;第2步循环酯化通入甲醇的流速为1.1 ml/min,反应温度为(375±5)K,大豆油脂肪酸甲酯化的转化率达到最高,为99.52%。[结论]研究可为制备生物柴油使用新的原料和途径提供科学的理论依据。[Objective] To reduce production cost and seek for new bio-diesel production technique.[Method] With waste soybean oil as raw material,lipase was used to hydrolyzed soybean oil,which made acid value reached（160±5）mgKOH/g;then,with soybean oil fatty acid as raw material,sulphuric acid as activator,bio-diesel was prepared by two-steps esterification method.[Result] The results showed that,in the first step,the mass fraction of methanol esterification is 80%,the mass percentage of strong sulfuric acid is 0.7%,reaction temperature（338±2）K;in the second step,the flow rate through the methanol is 1.1 ml/min and the response temperature of（335±5）K,the highest conversion rate of soybean oil fatty acid methyl ester is 99.52%.[Conclusion] The study can provide scientific theoretical basis for using new raw material and pathway in preparation of bio-diesel.

关 键 词：大豆油 酯化反应 生物柴油 

分 类 号：S565.1[农业科学—作物学]