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Chemical Absorption of Carbon Dioxide Using Aqueous Piperidine Derivatives
Author(s) -
Park Dong Jun,
Choi Jeong Ho,
Kim Young Eun,
Nam Sung Chan,
Lee Ki Bong,
Yoon Yeo Il
Publication year - 2017
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201700375
Subject(s) - piperidine , absorption (acoustics) , aqueous solution , amine gas treating , chemistry , carbon dioxide , absorption capacity , absorption rate , organic chemistry , chemical engineering , chromatography , materials science , engineering , composite material
The heat of CO 2 absorption is one of the important factors determining the operating cost of the CO 2 absorption process when using aqueous amine solutions. Aqueous monoethanolamine (MEA) solution is a commercial absorbent, but has several drawbacks. Although piperidine (PIPD) has a high heat of absorption, it shows good CO 2 absorption performance, including a high rate of CO 2 absorption and a high CO 2 loading capacity in comparison to MEA. PIPD derivatives were selected to identify the effect of functional groups of PIPD on the CO 2 loading and heat of absorption. Introduction of a methyl group to the PIPD molecule increased the heat of absorption, whereas a hydroxyl group reduced it. The results indicate that the introduction of functional groups in particular positions could provide advantages in CO 2 absorption and stripping performance.