Volume 41, Issue 7 pp. 1398-1405
Research Article

Heat Transfer Characteristics of CO2 Desorption from N-Methyldiethanolamine Solution in a Microchannel Reactor

Hongchen Liu

Hongchen Liu

Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, 457 Zhongshan Road, 116023 Dalian, China

University of Chinese Academy of Sciences, 19 Yuquan Road, 100049 Beijing, China

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Chaoqun Yao

Chaoqun Yao

Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, 457 Zhongshan Road, 116023 Dalian, China

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Yuchao Zhao

Yuchao Zhao

Yantai University, College of Chemistry and Chemical Engineering, 30 Qingquan Road, 264005 Yantai, China

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Guangwen Chen

Corresponding Author

Guangwen Chen

Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, 457 Zhongshan Road, 116023 Dalian, China

Correspondence: Guangwen Chen ([email protected]), Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, 457 Zhongshan Road, 116023 Dalian, China.Search for more papers by this author
First published: 02 May 2018
Citations: 17

Abstract

The heat transfer performance and energy consumption of CO2 desorption from rich N-methyldiethanolamine (MDEA) solution were determined experimentally in a straight microchannel reactor. Nucleate boiling was found to be the dominant heat transfer mechanism in this experiment. The heat transfer coefficients were strongly dependent on the heat flux. The solution flow rate was the most influential factor on the heat flux, followed by desorption temperature, MDEA concentration, and CO2 loading. In addition, an empirical correlation was proposed to predict the experimental heat transfer coefficients.

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