VLE modelling for aqueous systems containing methyldiethanolamine, carbon dioxide and hydrogen

被引：39

作者：

Kuranov, G

Rumpf, B

Maurer, G

Smirnova, N ^{[1
]}

机构：

[1] St Petersburg State Univ, Dept Chem, St Petersburg 198904, Russia

[2] Univ Kaiserslautern, Lehrstuhl Tech Thermodynam, D-67653 Kaiserslautern, Germany

来源：

FLUID PHASE EQUILIBRIA | 1997年 / 136卷 / 1-2期

关键词：

theory; equation of state; chemical absorption; electrolytes; carbon dioxide; hydrogen sulfide; water; methyldiethanolamine;

D O I：

10.1016/S0378-3812(97)00138-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A method is proposed for modelling vapor-liquid equilibria in ternary aqueous systems containing acid gas and alkanolamine with an equation of state describing both phases. A hole quasichemical model is modified with due regard for chemical reactions and electrostatic interactions in the liquid solution. The modelling was carried out for the carbon dioxide-N-methyldiethanolamine (MDEA)-water and hydrogen sulfide-MDEA-water systems in the temperature range from 313 to 413 K at pressures up to 5 MPa and amine concentrations up to 4 mol/kg of water. Satisfactory agreement with the experimental data was obtained. (C) 1997 Elsevier Science B.V.

引用

页码：147 / 162

页数：16

共 35 条

[1] MODEL OF VAPOR-LIQUID-EQUILIBRIA FOR AQUEOUS ACID GAS-ALKANOLAMINE SYSTEMS .2. REPRESENTATION OF H2S AND CO2 SOLUBILITY IN AQUEOUS MDEA AND CO2 SOLUBILITY IN AQUEOUS MIXTURES OF MDEA WITH MEA OR DEA [J].