Volume 40, Issue 12 pp. 2266-2273
Research Article

Chemical Absorption of Carbon Dioxide Using Aqueous Piperidine Derivatives

Dong Jun Park

Dong Jun Park

Korea Institute of Energy Research, Greenhouse Gas Laboratory,, 152, Gajeong-ro, Yuseong-gu, 305-343 Daejeon, Republic of Korea

Korea University, Department of Chemical and Biological Engineering, 145 Anam-ro, Seongbuk-gu, 136-713 Seoul, Republic of Korea

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Jeong Ho Choi

Jeong Ho Choi

Korea Institute of Energy Research, Greenhouse Gas Laboratory,, 152, Gajeong-ro, Yuseong-gu, 305-343 Daejeon, Republic of Korea

Korea University, Department of Chemical and Biological Engineering, 145 Anam-ro, Seongbuk-gu, 136-713 Seoul, Republic of Korea

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Young Eun Kim

Young Eun Kim

Korea Institute of Energy Research, Greenhouse Gas Laboratory,, 152, Gajeong-ro, Yuseong-gu, 305-343 Daejeon, Republic of Korea

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Sung Chan Nam

Sung Chan Nam

Korea Institute of Energy Research, Greenhouse Gas Laboratory,, 152, Gajeong-ro, Yuseong-gu, 305-343 Daejeon, Republic of Korea

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Ki Bong Lee

Ki Bong Lee

Korea University, Department of Chemical and Biological Engineering, 145 Anam-ro, Seongbuk-gu, 136-713 Seoul, Republic of Korea

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Yeo Il Yoon

Corresponding Author

Yeo Il Yoon

Korea Institute of Energy Research, Greenhouse Gas Laboratory,, 152, Gajeong-ro, Yuseong-gu, 305-343 Daejeon, Republic of Korea

Correspondence: Yeo Il Yoon ([email protected]), Korea Institute of Energy Research, Greenhouse Gas Laboratory, 152, Gajeong-ro, Yuseong-gu, Daejeon 305-343, Republic of Korea.Search for more papers by this author
First published: 04 October 2017
Citations: 14

Abstract

The heat of CO2 absorption is one of the important factors determining the operating cost of the CO2 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 CO2 absorption performance, including a high rate of CO2 absorption and a high CO2 loading capacity in comparison to MEA. PIPD derivatives were selected to identify the effect of functional groups of PIPD on the CO2 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 CO2 absorption and stripping performance.

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