Optimizing Utilization of Point Source and Atmospheric Carbon Dioxide as a Feedstock in Electrochemical CO2 Reduction

Alex Badgett, Alison Feise, Andrew Star

Research output: Contribution to journalArticlepeer-review

8 Scopus Citations

Abstract

The electrochemical reduction of carbon dioxide is a potential pathway for production of fuels and chemicals that uses atmospheric carbon dioxide as a feedstock. Here, we present an analysis of the potential for carbon dioxide from point sources and via direct air capture to be utilized in electrochemical reduction under different market scenarios. We show that developing a network for production of these products at scale requires capture and utilization of significant portions of the carbon dioxide that is currently emitted from large stationary point sources. Because carbon dioxide point sources are spatially and compositionally variable, their use for carbon dioxide reduction depends on electricity prices, capture cost, and location. If the power sector in the United States is decarbonized, carbon dioxide supply decreases significantly, increasing the importance of utilizing other carbon dioxide streams, and increasing the likelihood that direct air capture plays a role in supplying carbon dioxide feedstocks.

Original languageAmerican English
Article numberArticle No. 104270
Number of pages19
JournaliScience
Volume25
Issue number5
DOIs
StatePublished - 20 May 2022

Bibliographical note

Publisher Copyright:
© 2022 The Author(s)

NREL Publication Number

  • NREL/JA-6A20-78564

Keywords

  • carbon dioxide
  • carbon dioxide utilization
  • carbon monoxide
  • CO2 reduction
  • electrolysis
  • ethylene
  • formate
  • formic acid
  • numerical optimization
  • spatial analysis
  • technoeconomic analysis

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