Towards Cleaner Geothermal Energy Utilization: Capturing and Sequestering CO2 and H2S Emissions from Geothermal Power Plants
Field-scale reactive transport models of CO2 and H2S mineral sequestration are in development, with a focus on Reykjavík Energy’s ongoing gas reinjection tests at Hellisheidi geothermal power plant. A new thermodynamic dataset describing the minerals of interest was developed as a part of this study...
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ftzenodo:oai:zenodo.org:12901 2024-09-09T20:05:16+00:00 Towards Cleaner Geothermal Energy Utilization: Capturing and Sequestering CO2 and H2S Emissions from Geothermal Power Plants Edda S.P. Aradóttir 2012-09-17 https://doi.org/10.5281/zenodo.12901 unknown Zenodo https://doi.org/ https://doi.org/10.5281/zenodo.12901 oai:zenodo.org:12901 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode info:eu-repo/semantics/article 2012 ftzenodo https://doi.org/10.5281/zenodo.12901 2024-07-26T14:01:13Z Field-scale reactive transport models of CO2 and H2S mineral sequestration are in development, with a focus on Reykjavík Energy’s ongoing gas reinjection tests at Hellisheidi geothermal power plant. A new thermodynamic dataset describing the minerals of interest was developed as a part of this study, since widely used thermodynamic databases did not contain the mineral assemblage needed for the simulations. Simulations predict efficient precipitation of both CO2 and H2S into thermodynamically stable minerals, with calcite and pyrrhotite being the favored carbonate and sulfide sequestering minerals, respectively. Despite only being indicative, we conclude from this study that the capture and sequestration of CO2 and H2S from geothermal power plants is a viable option for reducing their gas emissions, and that basalts may comprise ideal geological CO2 and H2S storage formations. Article in Journal/Newspaper Reykjavík Reykjavík Zenodo Reykjavík |
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description |
Field-scale reactive transport models of CO2 and H2S mineral sequestration are in development, with a focus on Reykjavík Energy’s ongoing gas reinjection tests at Hellisheidi geothermal power plant. A new thermodynamic dataset describing the minerals of interest was developed as a part of this study, since widely used thermodynamic databases did not contain the mineral assemblage needed for the simulations. Simulations predict efficient precipitation of both CO2 and H2S into thermodynamically stable minerals, with calcite and pyrrhotite being the favored carbonate and sulfide sequestering minerals, respectively. Despite only being indicative, we conclude from this study that the capture and sequestration of CO2 and H2S from geothermal power plants is a viable option for reducing their gas emissions, and that basalts may comprise ideal geological CO2 and H2S storage formations. |
format |
Article in Journal/Newspaper |
author |
Edda S.P. Aradóttir |
spellingShingle |
Edda S.P. Aradóttir Towards Cleaner Geothermal Energy Utilization: Capturing and Sequestering CO2 and H2S Emissions from Geothermal Power Plants |
author_facet |
Edda S.P. Aradóttir |
author_sort |
Edda S.P. Aradóttir |
title |
Towards Cleaner Geothermal Energy Utilization: Capturing and Sequestering CO2 and H2S Emissions from Geothermal Power Plants |
title_short |
Towards Cleaner Geothermal Energy Utilization: Capturing and Sequestering CO2 and H2S Emissions from Geothermal Power Plants |
title_full |
Towards Cleaner Geothermal Energy Utilization: Capturing and Sequestering CO2 and H2S Emissions from Geothermal Power Plants |
title_fullStr |
Towards Cleaner Geothermal Energy Utilization: Capturing and Sequestering CO2 and H2S Emissions from Geothermal Power Plants |
title_full_unstemmed |
Towards Cleaner Geothermal Energy Utilization: Capturing and Sequestering CO2 and H2S Emissions from Geothermal Power Plants |
title_sort |
towards cleaner geothermal energy utilization: capturing and sequestering co2 and h2s emissions from geothermal power plants |
publisher |
Zenodo |
publishDate |
2012 |
url |
https://doi.org/10.5281/zenodo.12901 |
geographic |
Reykjavík |
geographic_facet |
Reykjavík |
genre |
Reykjavík Reykjavík |
genre_facet |
Reykjavík Reykjavík |
op_relation |
https://doi.org/ https://doi.org/10.5281/zenodo.12901 oai:zenodo.org:12901 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.12901 |
_version_ |
1809937580590891008 |