CIESC Journal

• 化工学报 • 上一篇    下一篇

CO_2在MDEA水溶液中的溶解度测定及其数学模型

徐国文,张成芳,钦淑均,朱炳辰   

  1. 华东理工大学无机化工研究所,华东理工大学无机化工研究所,华东理工大学无机化工研究所,华东理工大学无机化工研究所 上海200237 ,上海200237 ,上海200237 ,上海200237
  • 出版日期:1993-12-25 发布日期:1993-12-25

SOLUBILITY OF CO_2 IN AQUEOUSMETHYLDIETHANOLAMINE SOLUTIONS ANDTHE MATHEMATICAL MODELS

Xu Guowen, Zhang Chengfang, Qin Shujun and Zhu Bingchen (Research Institute of Inorganic Chemical Technology, East China University of Science and Technology, Shanghai 200237)   

  • Online:1993-12-25 Published:1993-12-25

摘要: 在常压、高压搅拌釜中,测定了CO_2在N-甲基二乙醇胺(MDEA)水溶液中的溶解度.实验温度40~100°C,CO_2分压1~1000kPa,MDEA浓度2.0~4.28kmol/m~3.用测得的平衡数据,分别建立了能满足工程应用的简化模型和热力学模型.本立用Gibbs-Duhem方程计算了CO_2在MDEA水溶液中的溶解热.

Abstract: The solubility of CO2 in aqueous methyldiethanolamine solutions was measured in atmospheric pressure cell and high pressure cell, respectively. The experimental temperature was from 40 to 100℃ , CO2 partial pressure was from 1 to 1000 kPa and the concentration of methyldiethanolamine was from 2. 0 to 4. 28 kmol/m3. A simple model and a thermodynamic model which can be used for engineering calculation were established by using the solubility data determined. The heat of solution were calculated from the experimental results with the Gibbs -Duhem equation.