Experimental research on the performance of CO2-loaded solutions of MEA and DEA at regeneration conditions

被引：111

作者：

Galindo, Paula ^{[1
]}

Schaeffer, Anke ^{[1
]}

Brechtel, Kevin ^{[1
]}

Unterberger, Sven ^{[2
]}

Scheffknecht, Guenter ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Combust & Power Plant Technol, D-70569 Stuttgart, Germany

[2] EnBW Kraftwerke AG, D-70567 Stuttgart, Germany

来源：

FUEL | 2012年 / 101卷

关键词：

Post combustion CO2 capture; Amine scrubbing; Regeneration; Desorption; Stripper performance;

D O I：

10.1016/j.fuel.2011.02.005

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Amine-based post combustion CO2 capture is considered as one of the most advanced technologies to be implemented in new and existing coal-fired power plants for CCS. Although it has proven technically viable, it has not been installed on a large-scale application yet. The main drawback of the process is the high energy requirement for the regeneration of the amine solution. Values around 4 MJ/kg of CO2 for the standard MEA-based process have been reported. The heat duty must be supplied by means of low-pressure steam from the power plant, which causes a decrease in the power plant net efficiency of up to 13%-points. Therefore, improvements in process technology and solvent development are important to reduce the penalty in the power plant efficiency. Results from lab-scale research on the absorption and desorption of MEA and DEA at different concentrations are presented and discussed. Absorption and desorption capacities, as well as the regeneration of the CO2-loaded solutions in a stripper column and the influence of different operating parameters have been experimentally investigated. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2 / 8

页数：7

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