酶法催化大豆油脚脂肪酸制备生物柴油的研究  

Study on The Living Diesel Oil Prepared by Soybean Oil Foot Fatty Acid Catalyzed by The Enzyme

作　　者：宋玉卿[1] 刘春雷[2] 于殿宇[2] 王瑾[2] 李默馨[2] 

机构地区：[1]吉林工商学院,长春130062 [2]东北农业大学食品学院,哈尔滨150030

出　　处：《食品工业》2008年第4期58-61,共4页The Food Industry

基　　金：黑龙江省科技攻关计划项目：大豆综合利用关键技术研究与开发GA06B402-7

摘　　要：大豆水化油脚采用皂化酸解法可制取油脚脂肪酸。以油脚脂肪酸为原料、固定化脂肪酶为催化剂.采用酯化方法制备生物柴油,考察脂肪酸与无水乙醇的料液摩尔比、乙醇流加方式、固定化酶用量、溶剂选取、反应温度和时间对生物柴油转化率的影响。单因素及响应面结果显示反应最佳条件为:料液摩尔比1:7、乙醇分三次流加、固定化酶为脂肪酸质量的13.5%、以叔丁醇为助溶剂、反应温度45℃、反应时间36 h。生物柴油的转化率82.5%。Hydration to soybean oil as raw material feet, immobilized lipase as a catalyst, through the use of esterification of bio-diesel, oil and inspected the acidification of ethanol liquid ratio, fed ethanol, a fixed amount of enzymes, At the end of selection, temperature and time on bio-diesel conversion of the impact of single-factor and the response surface showed that the best conditions for the reaction： expected ratio of 1：7, ethanol plus for three times, fixed the amount of enzyme acidification oil feet to 13.5%, to tert-butyl alcohol as a substrate, temperature 45℃, reaction time 36 h. Biodiesel in the rate of 82.5%.

关 键 词：生物柴油 脂肪酸 固定化脂肪酶 酯化反应 叔丁醇 

分 类 号：TE667[石油与天然气工程—油气加工工程]