甲醇合成化学平衡常数的测定与推算

CIESC Journal

甲醇合成化学平衡常数的测定与推算

刘辉,骆赞椿,朱炳辰

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

出版日期:1994-04-25 发布日期:1994-04-25

MEASUREMENT AND PREDICTION OF CHEMICAL EQUILIBRIUM CONSTANTS IN METHANOL SYNTHESIS

Liu Hui, Luo Zanchun and Zhu Bingchen (Chemical Engineering Department, East China University of Science and Technology, Shanghai 200237)

Online:1994-04-25 Published:1994-04-25

摘要/Abstract

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.

中图分类号:

TQ223

刘辉,骆赞椿,朱炳辰. 甲醇合成化学平衡常数的测定与推算 [J]. CIESC Journal.

Liu Hui, Luo Zanchun and Zhu Bingchen (Chemical Engineering Department, East China University of Science and Technology, Shanghai 200237). MEASUREMENT AND PREDICTION OF CHEMICAL EQUILIBRIUM CONSTANTS IN METHANOL SYNTHESIS[J]. .

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