期刊论文

中文

中国油脂

1003-7969

2014

39

7

73-76

基金项目：湖南省科技计划（2013SK3145） 湖南省发改委科技基本建设项目（湘发改高技[2012]1493号）

本校为第一机构

研究生物酶催化废白土油与甲醇酯交换制备生物柴油的最佳工艺条件。通过对比相当用量的Lipozyme TL IM 和Novozyme 435的催化效果,筛选出Lipozyme TL IM 为适宜的酶; 在此基础上,以醇油摩尔比、生物酶添加量、反应温度、反应时间为自变量,生物柴油得率为响应值,进行酯交换制备生物柴油的响应面优化实验。结果表明,酯交换反应最佳条件为: 醇油摩尔比4∶ 1,LipozymeTL IM 添加量10%(以废白土油质量计),反应温度35℃,反应时间15 h; 在此条件下,生物柴油得率为95. 9%,所得生物柴油非常接近0~#柴油的质量标准。

The optimal production conditions of biodiesel by transesterification of waste clay oil and metha-nol catalyzed by enzyme were studied. The catalysis effects of equal dosage of two enzymes（ Lipozyme TL IM and Novozyme 435）were compared,and Lipozyme TL IM was screened as the suitable catalyst. With molar ratio of methanol to oil, enzyme dosage, reaction temperature and reaction time as independent var-iables, biodiesel yield as response value, the production of biodiesel from waste clay oil catalyzed by en-zyme was optimized by response surfac...