A glycerol-free process to produce biodiesel by supercritical methyl acetate technology: an optimization study via Response Surface Methodology.
A glycerol-free process to produce biodiesel by supercritical methyl acetate technology: an optimization study via Response Surface Methodology.
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DOI：
10.1016/j.biortech.2009.09.004
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发表时间：
2010-02
影响因子：
11.4
通讯作者：
K. T. Tan;Keat-Teong Lee;A. Mohamed
中科院分区：
文献类型：
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作者：
K. T. Tan;Keat-Teong Lee;A. Mohamed
在本研究中，脂肪酸甲酯（FAME）已成功地从甘油三酯和乙酸甲酯之间的酯交换反应，而不是酒精。在这种非催化超临界乙酸甲酯（SCMA）技术中，作为副产物的三醋精是一种有价值的生物柴油添加剂，而不是甘油，具有较低的商业价值。此外，生物柴油（FAME和三醋精）的性能被发现是上级相比，从传统的催化反应（仅FAME）。采用响应面分析法对影响生物柴油产率的主要因素进行了优化。所建立的数学模型能够准确预测生物柴油的最佳产率。在反应温度399°C、乙酸甲酯与油脂的摩尔比30 mol/mol、反应时间59 min的条件下，生物柴油的产率可达97.6%。
In this study, fatty acid methyl esters (FAME) have been successfully produced from transesterification reaction between triglycerides and methyl acetate, instead of alcohol. In this non-catalytic supercritical methyl acetate (SCMA) technology, triacetin which is a valuable biodiesel additive is produced as side product rather than glycerol, which has lower commercial value. Besides, the properties of the biodiesel (FAME and triacetin) were found to be superior compared to those produced from conventional catalytic reactions (FAME only). In this study, the effects of various important parameters on the yield of biodiesel were optimized by utilizing Response Surface Methodology (RSM) analysis. The mathematical model developed was found to be adequate and statistically accurate to predict the optimum yield of biodiesel. The optimum conditions were found to be 399°C for reaction temperature, 30mol/mol of methyl acetate to oil molar ratio and reaction time of 59min to achieve 97.6% biodiesel yield.