Cited by 643Carbon Dioxide Capture TechnologiesClimate Change Policy and EconomicsChemistry and Chemical Engineering

Climate change mitigation potential of carbon capture and utilization in the chemical industry

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Kätelhön, Arne, Meys, Raoul, Deutz, Sarah, Suh, Sangwon, Bardow, André·2019·Proceedings of the National Academy of Sciences

Abstract

Significance: Carbon dioxide (CO 2 ) drives climate change when released to the atmosphere. Alternatively, CO 2 could be captured and utilized as carbon source for chemicals. Here, we provide a global assessment of the technical climate change mitigation potential of carbon capture and utilization (CCU) in the chemical industry. We develop an engineering-level model of the global chemical industry representing 75% of current greenhouse gas (GHG) emissions. The model allows us to analyze the potential disruptive changes through large-scale CO 2 utilization and resulting emission reductions. Our study shows that CCU has the technical potential to lead to a carbon-neutral chemical industry and decouple chemical production from fossil resources. This transition, however, would cause largely increased mass flows and demand for low-carbon electricity.

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Crossref · 10.1073/pnas.1821029116

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51 of 51 references verified0 citation errors · 0 not checkable

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  • Utilizing biogenic or renewable carbon as the core structural molecule offers many sectors new avenues to achieve net-zero emission targets, especially hard-to-decarbonize industries like petrochemicals.

    “Utilizing biogenic or renewable carbon as the core structural molecule offers many sectors new avenues to achieve net-zero emission targets, especially so-called hard-todecarbonize industries like petrochemicals (Kätelhön et al., 2019; Fernández et al., 2020).”

    From Circular Bioeconomy Concepts—A Perspective (2021) · cites this paper as Kätelhön et al., 2019

    The Discussion (page not supplied) says biogenic CO₂ sources can allow a closed carbon cycle and that CCU could supply carbon feedstock for chemicals, plastics, and pharmaceuticals in a net-zero economy. The paper supports a potential route for the chemical industry, but does not establish that renewable carbon offers many sectors avenues to meet net-zero targets; it also makes the mitigation potential conditional on factors including low-carbon electricity. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • In terms of the climate impact per kWh of electricity use, available renewable electricity is more efficiently directed towards e-mobility and heat pumps rather than towards hydrogen-based CCU technologies in the chemical industry.

    “In terms of the climate impact per kWh of electricity use, available renewable electricity is more efficiently directed towards e-mobility and heat pumps rather than towards hydrogen-based CCU technologies in the chemical industry 73 .”
  • The net climate impact of the CO2 utilization pathways will, in many cases, depend upon the emissions intensity from the prevailing processes.

    “The net climate impact of the CO 2 utilization pathways will, in many cases, depend upon the emissions intensity from the prevailing processes 73 .”

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2 of the 53 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. [19]19. Edenhofer O, et al., eds (2014) Climate Change 2014: Mitigation of Climate Change: Working Group III Contribution to the IPCC Fifth Assessment Report (Cambridge Univ Press, Cambridge, UK).

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Authors
Kätelhön, A., Meys, R., Deutz, S., Suh, S., & Bardow, A.
Affiliations
  • RWTH Aachen University (DE)
  • University of California, Santa Barbara (US)
  • Forschungszentrum Jülich (DE)
Corresponding author
Bardow, André
Venue
Proceedings of the National Academy of Sciences
Published
2019-05-13
Volume
116
Issue
23
Pages
11187-11194
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2946269349
Cited by
643
References
53
Citations by year
2026: 65 · 2025: 94 · 2024: 104 · 2023: 98 · 2022: 99 · 2021: 96 · 2020: 72 · 2019: 15
FWCI
39.62
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • RWTH Publications (RWTH Aachen) (submittedVersion)
Funders
U.S. Environmental Protection Agency (83557907)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Climate Change Policy and Economics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Chemistry and Chemical Engineering
Keywords
carbon capture and utilization, CO2 utilization, chemical industry, climate change mitigation, greenhouse gas emissions, decarbonization, mass flow

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