Measurement and modelling of the solubility of carbon dioxide in aqueous 1,8-p-menthane-diamine solution

被引：8

作者：

Li, Jie ^{[1
,2
,3
]}

Lin, Xiao ^{[1
,2
]}

Ning, Peng-Ge ^{[1
,2
]}

Cao, Hong-Bin ^{[1
,2
]}

Zhang, Yi ^{[1
,2
]}

机构：

[1] Beijing Engn Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2014年 / 71卷

基金：

中国国家自然科学基金;

关键词：

1,8-p-Menthane-diamine; Carbon dioxide; Chemical equilibrium constant; Gas solubility; Kent-Eisenberg; EQUILIBRIUM SOLUBILITY; CO2; MONOETHANOLAMINE; PIPERAZINE; METHYLDIETHANOLAMINE; ABSORPTION; PREDICTION; ALKANOLAMINE; MIXTURES; KINETICS;

D O I：

10.1016/j.jct.2013.11.018

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solubility of CO2 in aqueous 1,8-p-menthane-diamine (MDA) solution with substance concentrations of 0.625 and 1.25 mol center dot L (1) was measured at temperatures (313.15, 333.15 and 353.15) K with CO2 partial pressures ranging from (0.55 to 776.0) kPa and CO2 loading ranging from (0.120 to 1.97) mol CO2 per mol MDA. The gas solubility results are expressed as the partial pressure of CO2 (PCO2) against its mole ratio, i.e. alpha(CO2) (mol CO2 per mol MDA). The chemical absorption reaction and thermodynamic model have been proposed. The physicochemical Kent-Eisenberg model was used to correlate all the experimental results of the solubility of CO2 in the aqueous MDA solutions under investigation. The chemical equilibrium constants and model parameters were determined by fitting the VLE data. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：64 / 70

页数：7

共 20 条

[1] Equilibrium solubility of CO2 in aqueous solutions of 1-amino-2-propanol as function of concentration, temperature, and pressure [J].