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| 生物酶催化废白土油制备生物柴油的工艺研究 |
| Production of biodiesel from waste clay oil catalyzed by enzyme |
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| DOI： |
| 中文关键词: 生物酶 废白土油 生物柴油 响应面分析 |
| 英文关键词:enzyme waste clay oil biodiesel response surface methodology |
| 基金项目: |
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| 中文摘要: |
| 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，Lipozyme TL 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。 |
| 英文摘要: |
| The optimal production conditions of biodiesel by transesterification of waste clay oil and methanol 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 variables, biodiesel yield as response value, the production of biodiesel from waste clay oil catalyzed by enzyme was optimized by response surface methodology. The results showed that the optimal transesterification conditions were obtained as follows: molar ratio of methanol to oil 4∶1, Lipozyme TL IM dosage 10%( based on the mass of waste clay oil ), reaction temperature 35℃and reaction time 15 h;under these conditions, the biodiesel yield was 95.9%,and the quality of the biodiesel was very close to the quality standard of 0# diesel. |
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