MEASUREMENT AND PREDICTION OF CHEMICAL EQUILIBRIUM CONSTANTS IN METHANOL SYNTHESIS

刘辉; 骆赞椿; 朱炳辰

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MEASUREMENT AND PREDICTION OF CHEMICAL EQUILIBRIUM CONSTANTS IN METHANOL SYNTHESIS

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- MEASUREMENT AND PREDICTION OF CHEMICAL EQUILIBRIUM CONSTANTS IN METHANOL SYNTHESIS
- CIESC Journal Issue 2, (1994)
- 作者机构：
  
  华东理工大学化学工程系,华东理工大学化学工程系,华东理工大学化学工程系上海 200237,上海 200237,上海,200237
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q223
- Online First：25 April 1994，
  
  Published：25 April 1994
- 稿件说明：
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刘辉, 骆赞椿, 朱炳辰. MEASUREMENT AND PREDICTION OF CHEMICAL EQUILIBRIUM CONSTANTS IN METHANOL SYNTHESIS[J]. CIESC Journal, 1994, (2).
DOI：

刘辉, 骆赞椿, 朱炳辰. MEASUREMENT AND PREDICTION OF CHEMICAL EQUILIBRIUM CONSTANTS IN METHANOL SYNTHESIS[J]. CIESC Journal, 1994, (2). DOI：

摘要

以低压法(5MPa)甲醇合成为背景

建立了气相法甲醇合成化学平衡常数的实验测定系统

测定了不同温度和压力下

CO、CO_2同时加H_2合成CH_3OH反应的平衡组成及化学平衡常数K_p

同时以实验结果为依据

对K_p的理论推算进行了探讨

其中对文献中计算以逸度表示的平衡常数K_f的各种方程进行了比较。结果表明

基于Cherednichenko的K_(f

Ⅰ)和Bissett的K_(f

Ⅱ)

采用修正的SRK方程

对K_p的推算取得了满意的结果。

Abstract

The chemical equilibrium compositions and equilibrium constants of methanol synthesis reaction

starting from carbon monoxide

carbon dioxide and hydrogen

were studied experimentally at p=4. 0-6. 6MPa and t=220-260℃. Meanwhile

based on the experimental data of Kp measured in this paper

the thermodynamic prediction of Kp from Kf and equation of state was studied and it was found that the chemical equilibrium of methanol synthesis can be described well by using Cherednichenkos Kf Ⅰ and Bissetts Kf

Ⅲ relationship and a modified SKR equation.

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