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Carbon dioxide removal could result in the use of lower-grade iron ore in a decarbonized net-negative emission steel industry

Renforth, P.; Campbell, J.; Foteinis, S.; Cosgun, E.; Young, J.; Strunge, T.; Riley, A.L.; Mayes, W.M.; van der Spek, M.W.

Authors

P. Renforth

J. Campbell

S. Foteinis

E. Cosgun

J. Young

T. Strunge

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Dr Alex Riley A.L.Riley@hull.ac.uk
Lecturer in Environmental Science

M.W. van der Spek



Abstract

Reducing the emissions from steel production is essential in meeting climate targets while maintaining economic prosperity. Here we show that applying deep emissions mitigation to the steel industry together with the reaction of by-product slag with atmospheric carbon dioxide (CO2) could result in a carbon negative industry on the order of up to a GtCO2 yr-1 by mid-century. We used a bespoke technoeconomic assessment model that simulates a base-case scenarios in which steel is produced using a blast furnace and basic oxygen furnace. This system was augmented with a range of climate change intervention technologies including biomass based reducant, directly reduced iron, carbon capture and storage, and slag carbonation. Surprisingly, strong incentivisation ($200 – 500 tCO2-1) for emissions reduction and CO2 removal from the atmosphere may create conditions under which lower grade ores are commercially viable and also achieve deep emissions mitigation. The additional costs for emissions reduction could be wholly offset by value generated through carbon removal from biomass energy carbon capture and storage together with slag carbonation.

Citation

Renforth, P., Campbell, J., Foteinis, S., Cosgun, E., Young, J., Strunge, T., Riley, A., Mayes, W., & van der Spek, M. (2024). Carbon dioxide removal could result in the use of lower-grade iron ore in a decarbonized net-negative emission steel industry. Journal of cleaner production, 468, Article 142987. https://doi.org/10.1016/j.jclepro.2024.142987

Journal Article Type Article
Acceptance Date Jun 22, 2024
Online Publication Date Jul 16, 2024
Publication Date Aug 25, 2024
Deposit Date Jun 26, 2024
Publicly Available Date Jul 17, 2025
Journal Journal of Cleaner Production
Print ISSN 0959-6526
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 468
Article Number 142987
DOI https://doi.org/10.1016/j.jclepro.2024.142987
Public URL https://hull-repository.worktribe.com/output/4719986