Reactive CO2 Capture: A Path Forward for Process Integration in Carbon Management

Megan Freyman, Zhe Huang, Dwarakanath Ravikumar, Eric Duoss, Yat Li, Sarah Baker, Simon Pang, Joshua Schaidle

Research output: Contribution to journalArticlepeer-review

36 Scopus Citations

Abstract

The integration of carbon dioxide (CO2) capture and conversion processes presents an opportunity to reduce energy and capital costs required to create useful products from dilute CO2 streams, such as air or flue gas. In an integrated system, regeneration of the CO2 capture media is achieved directly through the conversion of CO2 to value-added products, eliminating dedicated CO2 desorption and compression steps. We define processes that integrate CO2 capture and CO2 conversion without going through a purified CO2 intermediate stream as "reactive capture." In this perspective, we propose that the value proposition for reactive capture is the reduction of energy intensity and capital expense in the production of CO2-derived chemicals and materials. We describe the current strategies and the state of technology for reactive capture and provide a roadmap to guide research toward realizing these potential benefits.
Original languageAmerican English
Pages (from-to)631-651
Number of pages21
JournalJoule
Volume7
Issue number4
DOIs
StatePublished - 2023

NREL Publication Number

  • NREL/JA-2A00-84371

Keywords

  • carbon dioxide
  • CO2 capture
  • CO2 conversion
  • direct air capture
  • flue gas
  • reactive capture

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