Influence of process operating conditions on solvent thermal and oxidative degradation in post-combustion CO2 capture

被引：26

作者：

Leonard, Gregoire ^{[1
]}

Crosset, Cyril ^{[1
]}

Toye, Dominique ^{[1
]}

Heyen, Georges ^{[1
]}

机构：

[1] Univ Liege, Dept Appl Chem, B-4000 Liege, Belgium

来源：

COMPUTERS & CHEMICAL ENGINEERING | 2015年 / 83卷

关键词：

Post combustion CO2 capture; Monoethanolamine thermal and oxidative degradation; Process modeling; Plant design; Integrated experimental and modeling study; CARBON-DIOXIDE; POWER-PLANTS; PILOT-SCALE; MEA; MONOETHANOLAMINE; PERFORMANCE; KINETICS; MODEL;

D O I：

10.1016/j.compchemeng.2015.05.003

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The CO2 post-combustion capture with amine solvents is modeled as a complex system interconnecting process energy consumption and solvent degradation and emission. Based on own experimental data, monoethanolamine degradation is included into a CO2 capture process model. The influence of operating conditions on solvent loss is validated with pilot plant data from literature. Predicted solvent consumption rates are in better agreement with plant data than any previous work, and pathways are discussed to further refine the model. Oxidative degradation in the absorber is the largest cause of solvent loss while thermal degradation does not appear as a major concern. Using a single model, the process exergy requirement decreases by 10.8% and the solvent loss by 11.1% compared to our base case. As a result, this model provides a practical tool to simultaneously minimize the process energy requirement and the solvent consumption in post-combustion CO2 capture plants with amine solvents. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：121 / 130

页数：10

共 38 条

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