Mass transfer of CO2 absorption in hybrid MEA-methanol solvents in packed column

The mass transfer performance of CO2 absorption into three solvents (i.e., 5M MEA in methanol, 5M MEA in 1:1 water-methanol volume ratio, and 5M MEA aqueous solutions) in an absorption column packed with DX structured packing at various CO2 loading, liquid flow rate, and inert gas flow rate. The mas...

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Bibliographic Details
Published in:Energy procedia 2013, Vol.37, p.883-889
Main Authors: Sema, Teerawat, Naami, Abdulaziz, Usubharatana, Phairat, Wang, Xiangzeng, Gao, Ruimin, Liang, Zhiwu, Idem, Raphael, Tontiwachwuthikul, Paitoon
Format: Article
Language:English
Subjects:
CO2
hybrid solvent
mass transfer
methanol
monoethanolamine
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Summary:The mass transfer performance of CO2 absorption into three solvents (i.e., 5M MEA in methanol, 5M MEA in 1:1 water-methanol volume ratio, and 5M MEA aqueous solutions) in an absorption column packed with DX structured packing at various CO2 loading, liquid flow rate, and inert gas flow rate. The mass transfer performance was evaluated in terms of volumetric overall mass transfer coefficient (KGav) and mass flux. The results showed that 5M MEA in methanol has higher mass transfer performance than those of 5M MEA in 1:1 water-methanol volume ratio and 5M MEA aqueous solutions, respectively. In addition, CO2 loading and liquid flow rate had significant effect on mass transfer performance, but inert gas flow rate has insignificant effect on mass transfer performance.
ISSN:1876-6102
1876-6102
DOI:10.1016/j.egypro.2013.05.181