Membrane stripping technology for CO2 desorption from CO2-rich absorbents with low energy consumption

Zhen Wang, Mengxiang Fang*, Qinhui Ma, Zhun Zhao, Tao Wang, Zhongyang Luo

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

35 Scopus citations

Abstract

CO2 membrane stripping is a novel method for CO2 desorption at low temperature (around 348K) for amine-based CO2 capture, which has the potential to reduce regeneration energy requirement. In this work, we investigated CO2 membrane stripping with two different commercial hollow fiber membranes, polypropylene (PP) and Polyvinylidene fluoride (PVDF). CO2 membrane stripping in PVDF membrane showed a faster CO2 desorption rate than in PP membrane, but PP membrane presented a better stability on long-term running. Energy consumption for CO2 membrane stripping with 20 wt% MEA solvent was evaluated. Compared with conventional thermal regeneration, 28% energy can be saved if regeneration pressure of CO2 membrane stripping operated at 20 kPa.

Original languageEnglish
Pages (from-to)765-772
Number of pages8
JournalEnergy Procedia
Volume63
DOIs
StatePublished - 2014
Externally publishedYes
Event12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014 - Austin, United States
Duration: 5 Oct 20149 Oct 2014

Bibliographical note

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

Keywords

  • Absorbent
  • CO
  • Desorption
  • Energy consumption
  • Membrane stripping

ASJC Scopus subject areas

  • General Energy

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