Solubility of carbon dioxide in aqueous solutions of N-methyldiethanolamine and piperazine: Prediction and correlation

被引：23
|
作者：
Ermatchkov, Viktor [1 ]
Maurer, Gerd [1 ]
机构：
[1] Univ Kaiserslautern, Dept Mech & Proc Engn, Lab Engn Thermodynam, D-67653 Kaiserslautern, Germany
来源：
FLUID PHASE EQUILIBRIA | 2011年 / 302卷 / 1-2期
关键词：
Gas solubility; Vapor-liquid-equilibrium; Aqueous electrolyte solutions; Sour gas systems; Chemical reacting solutions; N-Methyldiethanolamine; Piperazine; Carbon dioxide; VAPOR-LIQUID-EQUILIBRIA; PLUS PIPERAZINE; HYDROGEN-SULFIDE; TEMPERATURE-RANGE; CO2; SOLUBILITY; MIXTURES; MONOETHANOLAMINE; MDEA; H2S; PRESSURES;
D O I：
10.1016/j.fluid.2010.06.001
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A thermodynamic model for the solubility of carbon dioxide in aqueous solutions of (N-methyldiethanolamine (MDEA)+ piperazine (PIPH2)) is presented. The model combines and extends previous models for the solubility of CO2 in aqueous solutions of the single amines and also accounts for the volatility of both amines. Model parameters are estimated from previously published experimental results for the solubility of CO2 in aqueous solutions of both amines (for MDEA molalities up to 8 mol kg(-1) of water and for PIPH2 molalities up to 4 mol kg(-1) of water, temperatures between 313 and 393 K, and pressures up to about 10 MPa). (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：338 / 346
页数：9
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