Study of a novel solvent system for CO2 capture from postcombustion flue gas

Kun Liu, Guojie Qi, Naser Matin, Reynolds Frimpong, Kunlei Liu

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


CAER-S2 solvent system developed in the Center for Applied Energy Center at the University of Kentucky has the advantages of fast CO2 removal rate, high thermal stability, low volatility, and commercial quantity available. Vapor liquid equilibrium measurement shows that the solvent has a lower partial pressure than that of MEA at scrubber temperatures. Such feature makes the solvent a promising candidate for carbon capture from natural gas-fired flue gas which has low CO2 concentration. Mass transfer coefficients of CO2 in the solvent system are tested using a wetted-wall column with simulated gases at the scrubber condition. Experimental results indicate that the mass transfer coefficient increases with the increasing of temperature over the studied range, which is different from the studies on MEA. Such results suggest that the solvent is preferable to be operated at elevated temperature in scrubber at which physical mass transfer limitation is minimized without sacrificing too much driving force.

Original languageEnglish
Pages (from-to)1927-1932
Number of pages6
JournalEnergy Procedia
StatePublished - 2014
Event12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014 - Austin, United States
Duration: Oct 5 2014Oct 9 2014

Bibliographical note

Publisher Copyright:
© 2014 The Authors Published by Elsevier Ltd.


  • Carbon capture
  • Mass transfer
  • Solvent
  • Vapor liquid equilibrium

ASJC Scopus subject areas

  • General Energy


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