Marieni, C;
Oelkers, E;
(2018)
Carbon sequestration potential of altered mafic reservoirs.
Energy Procedia
, 146
pp. 68-73.
10.1016/j.egypro.2018.07.010.
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Abstract
Porous basaltic aquifers are currently being considered as a key geologic carbon storage host due to its widespread distribution and high reactivity. The co-injection of CO2 and groundwater into basaltic reservoirs has the potential to mineralize this gas into solid phases within years, thanks to the release of divalent cations. Many natural basalts, however, contain substantial alteration minerals. Here we explore the potential of basalt alteration minerals to provide the Ca to fix injected CO2 within calcite and/or aragonite. Preliminary results suggest that altered basaltic rocks can provide this Ca as efficiently as fresh basalts at 25 and 100 °C. Further experimental work is ongoing to confirm these findings at different temperatures and as a function of injected fluid chemistry.
| Type: | Article |
|---|---|
| Title: | Carbon sequestration potential of altered mafic reservoirs |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.egypro.2018.07.010 |
| Publisher version: | https://doi.org/10.1016/j.egypro.2018.07.010 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Carbon sequestration, altered basalt, calcium release rate, epidote |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10057661 |
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