Efficient configuration/design of solvent-based post-combustion carbon capture

Zhengxiong Li, Rajab Khalilpour, Ali Abbas

Research output: Contribution to journalArticleResearchpeer-review

6 Citations (Scopus)

Abstract

In this study, we analyze two design configurations for post-combustion carbon capture (PCC) namely inter-stage cooling and split flow. The results show that inter-stage cooling configuration has notable impact on improving PCC performance. It is found that, for a flue gas with 13.0 mol% of CO 2, and with objective of capturing 90% of CO 2 at purity of 98%, base case configuration imposes a 4.7GJ/ton-CO 2 reboiler duty. This energy burden decreases (about 34.8%) to 3.1 GJ/ton-CO 2 with single-stage cooling configuration. Two-stage-cooling configuration further improves the efficiency but only incrementally. Similarly, split flow design configuration shows considerable improvement in efficiency (3.8GJ/ton-CO 2 vs. 4.7GJ/ton-CO 2 for base case).

Original languageEnglish
Pages (from-to)815-819
Number of pages5
JournalComputer Aided Chemical Engineering
Volume31
DOIs
Publication statusPublished - 2012
Externally publishedYes

Keywords

  • Inter-stage cooling
  • Post-combustion carbon capture (PCC)
  • Split flow

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