CO2 capture into aqueous solutions of piperazine activated 2-amino-2-methyl-1-propanol

被引：122

作者：

Bruder, Peter ^{[1
]}

Grimstvedt, Andreas ^{[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 | 2011年 / 66卷 / 23期

关键词：

Piperazine (PZ); 2-amino-2-methyl-1-propanol (AMP); Absorption; Thermodynamics process; Mathematical modeling; Phase equilibria; CARBON-DIOXIDE; METHYLDIETHANOLAMINE SOLUTIONS; LIQUID-EQUILIBRIUM; ABSORPTION; SOLUBILITY; MONOETHANOLAMINE; MIXTURES; KINETICS; DIETHANOLAMINE; SELECTION;

D O I：

10.1016/j.ces.2011.08.051

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 piperazine (PZ) activated 2-amino-2-methyl-1-propanol (AMP) are reported. The purpose of the work was to find the AMP/PZ system with the highest concentration and cyclic capacity, which could be used in the industry without forming solid precipitations at operational temperatures. The effect of the AMP/PZ ratio and the total concentration level of amine was studied. The highest possible ratio of AMP/PZ, which does not form solid precipitates during the absorption of CO2 at 40 degrees C (40 wt% amine), was identified. Considering the maximum loading found in the screening tests for AMP/PZ (3+1.5 M) and for 30 wt% MEA systems, the AMP/PZ system has about 128% higher specific cyclic capacity if operating between 40 and 80 degrees C, and almost twice the CO2 partial pressure at 120 degrees C compared to MEA. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：6193 / 6198

页数：6

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