Carbon dioxide recovery from carbonate solutions using bipolar membrane electrodialysis

Atsushi Iizuka, Kana Hashimoto, Hiroki Nagasawa, Kazukiyo Kumagai, Yukio Yanagisawa, Akihiro Yamasaki

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

Process design and cost estimation were conducted for CO 2 recovery by liquid absorption with alkaline solution, coupled with bipolar membrane electrodialysis for CO 2 gas separation and alkaline solution regeneration. The electrodialysis performances and power consumption for CO 2 recovery and alkaline solution regeneration were examined using laboratory-scale electrodialysis equipment under various conditions; degree of CO 2 absorption, CO 2 recovery ratio, alkaline concentration, and type of cation exchange membrane. The total cost of CO 2 recovery was estimated for the treatment of CO 2 emitted from a 400 MW coal-fired thermal power plant. The minimum cost for the optimum condition was about US$180 per ton-CO 2 removed, which is higher than that for the conventional process using amine absorption and thermal desorption. However, a sensitivity analysis indicates that the overall cost could be significantly reduced if the cost of membranes was reduced.

Original languageEnglish
Pages (from-to)49-59
Number of pages11
JournalSeparation and Purification Technology
Volume101
DOIs
Publication statusPublished - 2012 Nov 13
Externally publishedYes

Keywords

  • Bipolar membrane electrodialysis
  • CO recovery
  • Carbon capture and storage
  • Cost estimation
  • Global warming
  • Power consumption

ASJC Scopus subject areas

  • Analytical Chemistry
  • Filtration and Separation

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