茶叶籽油甲酯化制备生物柴油的反应动力学研究

Reaction Kinetics of Methyl Esterification for Biodiesel from Tea Seed Oil

在醇油摩尔比为9:1、催化剂氢氧化钾用量占油重1.0%的条件下,研究了60℃和70℃下茶叶籽油甲酯化制备生物柴油的反应动力学,采用Origin软件拟合曲线方程,建立了茶叶籽油甲酯化反应的宏观动力学模型。研究结果表明:茶叶籽油甲酯化反应为1.3级反应,活化能为29.22KJ.mol-1.K-1,频率因子为2.5×104mol.L-1.min-1。

At 60 ℃ and 70 ℃,the reaction kinetics of methyl esterification preparation of biodiesel from tea seed oil was studied with mole ratio of methanol to oil 9:1 and KOH catalyst dosage(mass percent of oil) 1.0%.A macro-kinetic equation for the methyl esterification of tea seed oil was established based on the equation of curve fitted by Origin software.The experimental results show that the reaction order of methyl esterification of tea seed oil is 1.3,the reaction activation energy is 29.22 kJmol and frequency factor is 2.5 × 104 mol.L-1.min-1.