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Journal article

Rapid mineralisation of carbon dioxide in peridotites

Abstract:

The success of industrial scale carbon capture and storage in geologic reservoirs depends on the permanence of the stored carbon dioxide (CO2). Carbon dioxide capture and mineralisation (CCM) or mineral carbonation, which is the conversion of CO2 to carbonate minerals via fluid-rock reactions provides low risk and permanent CO2 removal. Here, we demonstrate rapid mineralisation of industrial CO2 emissions in mantle peridotites. Captured CO2 from an ammonia plant in the Sultanate of Oman has been injected into peridotite at a pilot test site in the Samail ophiolite. Chemical and isotopic results indicate rapid carbonate mineral precipitation. Mass balance calculations suggest that ~88% of the injected CO2 was mineralised as carbonate minerals within 45 days after injection. This successful approach of CCM unlocks peridotite as a promising new type of reservoir for the safe and permanent disposal of anthropogenic CO2 emissions.

Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1038/s43247-025-02509-5

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
ORCID:
0000-0001-6875-769X
et al.


Publisher:
Springer Nature
Journal:
Communications Earth and Environment More from this journal
Volume:
6
Issue:
1
Article number:
590
Publication date:
2025-07-26
Acceptance date:
2025-06-23
DOI:
EISSN:
2662-4435


Language:
English
Keywords:
Pubs id:
2132029
Local pid:
pubs:2132029
Deposit date:
2025-06-24
ARK identifier:

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