Modeling of (vapor plus liquid) equilibrium and enthalpy of solution of carbon dioxide (CO2) in aqueous methyldiethanolamine (MDEA) solutions

被引：37

作者：

Arcis, Hugues ^{[1
]}

Rodier, Laurence ^{[1
]}

Ballerat-Busserolles, Karine ^{[1
]}

Coxam, Jean-Yves ^{[1
]}

机构：

[1] Univ Blaise Pascal Clermont Ferrand, CNRS, FRE3099, F-63177 Aubiere, France

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2009年 / 41卷 / 06期

关键词：

Acid gas; Carbon dioxide; Enthalpy of solution; MDEA; Solubility; Thermodynamic model; (Vapor plus liquid) equilibria; N-METHYLDIETHANOLAMINE; TEMPERATURE-RANGE; HYDROGEN-SULFIDE; WATER SUBSTANCE; SOLUBILITY; MPA; ALKANOLAMINES; PRESSURES; SYSTEMS; THERMODYNAMICS;

D O I：

10.1016/j.jct.2009.01.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A thermodynamic model was used to estimate enthalpy of solution of carbon dioxide (CO2) in methyldiethanolamine (MDEA) aqueous solutions. The model was based on a set of equations for chemical equilibria, phase equilibria, charge, and mass balances. Non-ideality in the liquid phase was taken into account by interaction parameters fitted to (vapor + liquid) equilibrium data. The enthalpies of solution of CO2 were derived from the model using classical thermodynamic relations and were compared to experimental values obtained in previous works. (C) 2009 Elsevier Ltd. All rights reserved.

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页码：783 / 789

页数：7

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