Effects of microwave irradiation on triglyceride transesterification: Experimental and theoretical studies

被引:18
作者
Asakuma, Yusuke [1 ]
Ogawa, Yosuke [1 ]
Maeda, Kouji [1 ]
Fukui, Keisuke [1 ]
Kuramochi, Hidetoshi [2 ]
机构
[1] Univ Hyogo, Dept Mech & Syst Engn, Himeji, Hyogo 6712280, Japan
[2] Natl Inst Environm Studies, Res Ctr Mat Cycles & Waste Management, Tsukuba, Ibaraki 3058506, Japan
关键词
Biodiesel fuel; Microwave; Transesterification; Molecular orbital calculations; FT-IR; Activation energy; BIODIESEL; OIL; HYDROLYSIS; ESTERS; AMIDES;
D O I
10.1016/j.bej.2011.08.003
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
An improved reaction rate of biodiesel fuel formation was observed under microwave irradiation. Such irradiation is effective for not only heating during the reaction but also preheating. The advantages observed in this study suggest that a continuous process, that is, the introduction of reactant preheated by microwave irradiation into reactor will be feasible. The reasons for the improved reaction rate are explained through the use of optimized structures, dipole moments, IR spectra and activation energies obtained using molecular orbital calculations. Planar triolein formed by microwave irradiation has higher reactivity, a lower dipole moment, a lower activation energy and stronger vibration around the carboxyl carbon, and is more reactive than triolein with a higher dipole moment. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:20 / 24
页数:5
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