石油化工2012，Vol.41Issue(6)：677-681,5.
醋酸甲酯合成的非均相反应动力学
Kinetics of the Heterogeneous Synthesis of Methyl Acetate
王勇 1张云 1张志昆 1王媛媛 1胡永其 1张向京1
作者信息
- 1. 河北科技大学化学与制药工程学院,河北石家庄050018
- 折叠
摘要
Abstract
The kinetics of the esterification reaction of acetic acid with methanol over a strong acidic cation exchange resin catalyst(23-59 g/L) was investigated in a stirred batch reactor in the temperature range of 323.15-348.15 K. The results showed that the methyl acetate synthesis was a second order reversible reaction. The chemical equilibrium constant K=20.09exp(l 603/7) for the synthesis was obtained; the forward and reverse reaction rate constants were A4=1.463 × 104exp(-53 160/ RT) and k=1.124 × 105exp(-63 740/RT), and the activation energy were Ea+t=53.16 kJ/moland Ea-=63.74 ld/mol, respectively. The relationship between temperature and the reaction rate was described by Arrhenius equation. With the rise of temperature, the reaction rate increased.关键词
阳离子交换树脂催化剂/醋酸甲酯/甲醇/醋酸/非均相酯化反应/反应动力学Key words
cation-exchange resin catalyst/ methyl acetate/ methanol/ acetic acid/ heterogeneous esterification reaction/ reaction kinetics分类
化学化工引用本文复制引用
王勇,张云,张志昆,王媛媛,胡永其,张向京..醋酸甲酯合成的非均相反应动力学[J].石油化工,2012,41(6):677-681,5.
