CO2 capture into aqueous solutions of 3-methylaminopropylamine activated dimethyl-monoethanolamine

被引：42

作者：

Bruder, Peter ^{[1
]}

Lauritsen, Kristin G. ^{[2
]}

Mejdell, Thor ^{[2
]}

Svendsen, Hallvard F. ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol NTNU, Dept Chem Engn, NO-7491 Trondheim, Norway

[2] SINTEF Mat & Chem, NO-7465 Trondheim, Norway

来源：

CHEMICAL ENGINEERING SCIENCE | 2012年 / 75卷

关键词：

3-metylaminopropylamine (N-Methyl-1,3-propane diamine-MAPA); Dimethyl-monoethanolamine (2-dimethylaminoethanol-DMMEA); Absorption; Thermodynamics process; Mathematical modeling; Phase equilibrium; CARBON-DIOXIDE; DISSOCIATION-CONSTANTS; N-METHYLDIETHANOLAMINE; SOLUBILITY; AMINES; ALKANOLAMINES; SELECTION; RANGE; H2S;

D O I：

10.1016/j.ces.2012.03.005

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this work, experimental data and a simplified vapor-liquid equilibrium (VLE) model for the absorption of CO2 into aqueous solutions of 3-methylaminopropylamine (N-methyl-1,3-propane diamine - MAPA) and dimethyl-monoethanolamine (2-dimethylaminoethanol - DMMEA) are reported. The chemicals were selected based on kinetic, energy and environmental properties for post-combustion CO2 capture. The effect of the DMMEA/MAPA ratio and the total concentration level of amine were studied. Based on the results of preliminary semi-quantitative tests (screening) the best amine ratios were determined. Two amine concentrations were selected for the VLE study. The result of both the screening and the VLE measurements are compared to the generally used 5 M (30 mass %) monoethanolamine (MEA) solution. The presented systems seem to be better performing than 5 M MEA, and have significantly higher cyclic capacity combined with moderate impact on the environment. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：28 / 37

页数：10

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