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碳酸二甲酯与乙醇酯交换反应体系的热力学分析

王丽苹

天然气化工2012,Vol.37Issue(5):23-26,4.
天然气化工2012,Vol.37Issue(5):23-26,4.

碳酸二甲酯与乙醇酯交换反应体系的热力学分析

Thermodynamic analysis of transesterification between dimethyl carbonate and ethanol

王丽苹1

作者信息

  • 1. 曲靖师范学院化学化工学院,曲靖655011
  • 折叠

摘要

Abstract

The enthalpy, entropy and Gibbs free energy changes as well as the equilibrium constants of the reactions for the synthesis of diethyl carbonate (DEC)by transesterification of dimethyl carbonate (DMC)with ethanol were calculated by Benson and Joback group contribution methods. The results showed that the transesterification reaction is exothermic, so the higher temperature is unfavorable for DEC synthesis. The equilibrium constant of the transesterification reaction between ethyl methyl carbonate (EMC)and ethanol is larger than that of EMC dismutation reaction.

关键词

碳酸二甲酯/乙醇/酯交换/碳酸二乙酯/热力学

Key words

dimethyl carbonate/ethanol/transesterification/diethyl carbonate/thermodynamics

分类

化学工程

引用本文复制引用

王丽苹..碳酸二甲酯与乙醇酯交换反应体系的热力学分析[J].天然气化工,2012,37(5):23-26,4.

天然气化工

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