Division of Energy and Environmental Engineering, Institute of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
Division of Energy and Environmental Engineering, Institute of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
Bioresour Technol. 2017 Oct;241:720-725. doi: 10.1016/j.biortech.2017.05.210. Epub 2017 Jun 2.
In this study, biodiesel production by using supercritical methyl acetate in a continuous flow reactor was investigated for the first time. The aim of this study was to elucidate the reaction kinetics of biodiesel production by using supercritical methyl. Experiments were conducted at various reaction temperatures (300-400°C), residence times (5-30min), oil-to-methyl acetate molar ratio of 1:40, and a fixed pressure of 20MPa. Reaction kinetics of biodiesel production with supercritical methyl acetate was determined. Finally, biodiesel yield obtained from this method was compared to that obtained with supercritical methanol, ethanol, and MTBE (methyl tertiary-butyl ether). The results showed that biodiesel yield with supercritical methyl acetate increased with temperature and time. The developed kinetic model was found to fit the experimental data well. The reactivity of supercritical methyl acetate was the lowest, followed by that of supercritical MTBE, ethanol, and methanol, under the same conditions.
本研究首次在连续流反应器中使用超临界甲基乙酸酯生产生物柴油。本研究的目的是阐明使用超临界甲基生产生物柴油的反应动力学。实验在不同的反应温度（300-400°C）、停留时间（5-30min）、油与甲基乙酸酯摩尔比为 1:40 和固定压力 20MPa 下进行。确定了使用超临界甲基乙酸酯生产生物柴油的反应动力学。最后，将该方法得到的生物柴油产率与超临界甲醇、乙醇和 MTBE（甲基叔丁基醚）得到的产率进行了比较。结果表明，超临界甲基乙酸酯生产生物柴油的产率随温度和时间的增加而增加。所开发的动力学模型与实验数据拟合良好。在相同条件下，超临界甲基乙酸酯的反应活性最低，其次是超临界 MTBE、乙醇和甲醇。
