Feasibility of air capture

  • Ranjan M
  • Herzog H
  • 115

    Readers

    Mendeley users who have this article in their library.
  • 29

    Citations

    Citations of this article.

Abstract

Capturing CO2from air, referred to as air capture, is being proposed as a viable climate change mitigation technology. Technically, air capture is not a new technology; industrial applications can be traced back to the 1930s. This paper explores the feasibility of this technology as a climate change mitigation option. Two different pathways of air capture are assessed: direct air capture, which uses a chemical process to capture CO2, and biomass coupled with CO2capture and storage (CCS), which utilizes the biological process of photosynthesis to remove CO2from the air. We find that direct air capture has prohibitively high mitigation costs compared to the costs of climate change mitigation options being considered today. The pathway of biomass coupled with CCS has much more reasonable costs and could be used to offset certain emissions. However, the large land requirement may limit the amount of offsets available. We conclude that relying on air capture technology to play a major role in mitigating carbon emissions is a very risky policy decision. © 2011 Published by Elsevier Ltd. © 2011 Published by Elsevier Ltd.

Author-supplied keywords

  • Air capture
  • Biomass
  • Carbon dioxide capture
  • Climate change
  • Sequestration
  • Switchgrass

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Manya Ranjan

  • Howard J. Herzog

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free