Comparison of Carbon Dioxide Absorption in Aqueous MEA, DEA, TEA, and AMP Solutions 


Vol. 34,  No. 3, pp. 783-787, Mar.  2013
10.5012/bkcs.2013.34.3.783


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  Abstract

The separation and capture process of carbon dioxide from power plants is garnering interest as a method to reduce greenhouse gas emissions. In this study, aqueous alkanolamine solutions were studied as absorbents for CO2 capture. The solubility of CO2 in aqueous alkanolamine solutions was investigated with a continuous stirred reactor at 313, 333 and 353 K. Also, the heat of absorption (−ΔHabs) between the absorbent and CO2 molecules was measured with a differential reaction calorimeter (DRC) at 298 K. The solubility and heat of absorption were determined at slightly higher than atmospheric pressure. The enthalpies of CO2 absorption in monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA), and 2-amino-2-methyl-1-propanol (AMP) were 88.91, 70.44, 44.72, and 63.95, respectively. This investigation showed that the heat of absorption is directly related to the quantity of heat for absorbent regeneration, and is dependent on amine type and CO2 loading.

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  Cite this article

[IEEE Style]

Y. E. Kim, J. A. Lim, S. K. Jeong, Y. I. Yoon, S. T. Bae, S. C. Nam, "Comparison of Carbon Dioxide Absorption in Aqueous MEA, DEA, TEA, and AMP Solutions," Bulletin of the Korean Chemical Society, vol. 34, no. 3, pp. 783-787, 2013. DOI: 10.5012/bkcs.2013.34.3.783.

[ACM Style]

Young Eun Kim, Jin Ah Lim, Soon Kwan Jeong, Yeo Il Yoon, Shin Tae Bae, and Sung Chan Nam. 2013. Comparison of Carbon Dioxide Absorption in Aqueous MEA, DEA, TEA, and AMP Solutions. Bulletin of the Korean Chemical Society, 34, 3, (2013), 783-787. DOI: 10.5012/bkcs.2013.34.3.783.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949