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CO2-Dissolved : A Novel Approach to Combining CCS and Geothermal Heat Recovery

Abstract : This paper presents the outline of the CO2-DISSOLVED project whose objective is to assess the technical-economic feasibility of a novel CCS concept integrating geothermal energy recovery, aqueous dissolution of CO2 and injection via a doublet system, and an innovative post-combustion CO2 capture technology. Compared to the use of a supercritical phase, this approach offers substantial benefits in terms of storage safety, due to lower brine displacement risks, lower CO2 escape risks, and the potential for more rapid mineralization. However, the solubility of CO2 in brine will be a limiting factor to the amount of CO2 that can be injected. Consequently, and as another contributing novel factor, this proposal targets low to medium range CO2-emitters (ca. 10-100 kt/yr), that could be compatible with a single doublet installation. Since it is intended to be a local solution, the costs related to CO2 transport would then be dramatically reduced, provided that the local underground geology is favorable. Finally, this project adds the potential for energy and/or revenue generation through geothermal heat recovery. This constitutes an interesting way of valorization of the injection operations, demonstrating that an actual synergy between CO2 storage and geothermal activities may exist.
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https://hal-brgm.archives-ouvertes.fr/hal-00829796
Contributeur : Christophe Kervévan <>
Soumis le : mardi 3 juin 2014 - 07:00:05
Dernière modification le : mercredi 3 juillet 2019 - 11:34:02
Archivage à long terme le : : mercredi 3 septembre 2014 - 10:38:07

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Christophe Kervévan, Frédérik Bugarel, Xavier Galiègue, Y. Le Gallo,, Franz May, et al.. CO2-Dissolved : A Novel Approach to Combining CCS and Geothermal Heat Recovery. SES 2013 - Sustainable Earth Sciences 2013, Sep 2013, Pau, France. 5 p., ⟨10.3997/2214-4609.20131596⟩. ⟨hal-00829796⟩

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