Kinetic analysis of an anion exchange absorbent for CO2 capture from ambient air

Xiaoyang Shi, Qibin Li, Tao Wang, Klaus Lackner

Research output: Contribution to journalArticle

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Abstract

This study reports a preparation method of a new moisture swing sorbent for CO2 capture from air. The new sorbent components include ion exchange resin (IER) and polyvinyl chloride (PVC) as a binder. The IER can absorb CO2 when surrounding is dry and release CO2 when surrounding is wet. The manuscript presents the studies of membrane structure, kinetic model of absorption process, performance of desorption process and the diffusivity of water molecules in the CO2 absorbent. It has been proved that the kinetic performance of CO2 absorption/desorption can be improved by using thin binder and hot water treatment. The fast kinetics of P-100-90C absorbent is due to the thin PVC binder, and high diffusion rate of H2O molecules in the sample. The impressive is this new CO2 absorbent has the fastest CO2 absorption rate among all absorbents which have been reported by other up-to-date literatures.

LanguageEnglish (US)
Article numbere0179828
JournalPLoS One
Volume12
Issue number6
DOIs
StatePublished - Jun 1 2017

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absorbents
anion exchange
Ion Exchange Resins
Binders
Anions
carbon dioxide
Air
Sorbents
Polyvinyl Chloride
kinetics
air
Kinetics
Desorption
Membrane structures
Molecules
Manuscripts
Water Purification
ion exchange resins
poly(vinyl chloride)
Water treatment

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Kinetic analysis of an anion exchange absorbent for CO2 capture from ambient air. / Shi, Xiaoyang; Li, Qibin; Wang, Tao; Lackner, Klaus.

In: PLoS One, Vol. 12, No. 6, e0179828, 01.06.2017.

Research output: Contribution to journalArticle

Shi, Xiaoyang ; Li, Qibin ; Wang, Tao ; Lackner, Klaus. / Kinetic analysis of an anion exchange absorbent for CO2 capture from ambient air. In: PLoS One. 2017 ; Vol. 12, No. 6.
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