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The rapid and cost-effective capture and subsurface mineral storage of carbon and sulfur at the CarbFix2 site

The rapid and cost-effective capture and subsurface mineral storage of carbon and sulfur at the CarbFix2 site
The rapid and cost-effective capture and subsurface mineral storage of carbon and sulfur at the CarbFix2 site
One of the main challenges of worldwide carbon capture and storage (CCS) efforts is its cost. As much as 90% of this cost stems from the capture of pure or nearly pure CO2 from exhaust streams. This cost can be lowered by capturing gas mixtures rather than pure CO2. Here we present a novel integrated carbon capture and storage technology, installed at the CarbFix2 storage site at Hellisheiði, Iceland that lowers considerably the cost and energy required at this site. The CarbFix2 site, located in deeper and hotter rocks than the original CarbFix site, permits the continuous injection of larger quantities of CO2 and H2S than the original site. The integrated process consists of soluble gas mixture capture in water followed by the direct injection of the resulting CO2-H2S-charged water into basaltic rock, where much of the dissolved carbon and sulfur are mineralized within months. This integrated method provides the safe, long-term storage of carbon dioxide and other acid gases at a cost of US $25/ton of the gas mixture at the CarbFix2 site and might provide the technology for lower CCS cost at other sites.
1750-5836
117-126
Gunnarsson, Ingvi
3ad3a334-8cf4-4bbc-b10a-f18a2d11b577
Aradóttir, Edda S.
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Oelkers, Eric H.
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Clark, Deirdre E.
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Arnarson, Magnús Þór
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Sigfússon, Bergur
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Snæbjörnsdóttir, Sandra Ó.
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Matter, Juerg M.
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Stute, Martin
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Júlíusson, Bjarni M.
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Gíslason, Sigurður R.
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Gunnarsson, Ingvi
3ad3a334-8cf4-4bbc-b10a-f18a2d11b577
Aradóttir, Edda S.
a5113a92-f033-4a40-b758-22c4be703114
Oelkers, Eric H.
3cf51d71-be44-4bed-803e-3b240bdb147b
Clark, Deirdre E.
63cd679b-c5ff-45fa-b475-14d6e5512882
Arnarson, Magnús Þór
fe437d53-7c6c-4b09-84af-2603f444836a
Sigfússon, Bergur
45616e1a-ee07-434f-8784-ca6d06d5abb9
Snæbjörnsdóttir, Sandra Ó.
72d2bff8-88ff-4d5d-b910-bd0d8e91b839
Matter, Juerg M.
abb60c24-b6cb-4d1a-a108-6fc51ee20395
Stute, Martin
1d6a7971-cf3f-48d4-8962-da892b51b25b
Júlíusson, Bjarni M.
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Gíslason, Sigurður R.
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Gunnarsson, Ingvi, Aradóttir, Edda S., Oelkers, Eric H., Clark, Deirdre E., Arnarson, Magnús Þór, Sigfússon, Bergur, Snæbjörnsdóttir, Sandra Ó., Matter, Juerg M., Stute, Martin, Júlíusson, Bjarni M. and Gíslason, Sigurður R. (2018) The rapid and cost-effective capture and subsurface mineral storage of carbon and sulfur at the CarbFix2 site. International Journal of Greenhouse Gas Control, 79, 117-126. (doi:10.1016/j.ijggc.2018.08.014).

Record type: Article

Abstract

One of the main challenges of worldwide carbon capture and storage (CCS) efforts is its cost. As much as 90% of this cost stems from the capture of pure or nearly pure CO2 from exhaust streams. This cost can be lowered by capturing gas mixtures rather than pure CO2. Here we present a novel integrated carbon capture and storage technology, installed at the CarbFix2 storage site at Hellisheiði, Iceland that lowers considerably the cost and energy required at this site. The CarbFix2 site, located in deeper and hotter rocks than the original CarbFix site, permits the continuous injection of larger quantities of CO2 and H2S than the original site. The integrated process consists of soluble gas mixture capture in water followed by the direct injection of the resulting CO2-H2S-charged water into basaltic rock, where much of the dissolved carbon and sulfur are mineralized within months. This integrated method provides the safe, long-term storage of carbon dioxide and other acid gases at a cost of US $25/ton of the gas mixture at the CarbFix2 site and might provide the technology for lower CCS cost at other sites.

Text
Gunnarsson et al. IJGGC manuscript_revised - Accepted Manuscript
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More information

Accepted/In Press date: 29 August 2018
e-pub ahead of print date: 24 October 2018
Published date: 1 December 2018

Identifiers

Local EPrints ID: 425577
URI: http://eprints.soton.ac.uk/id/eprint/425577
ISSN: 1750-5836
PURE UUID: d75f76bf-260f-4c3e-8f83-758d24ffefc0
ORCID for Juerg M. Matter: ORCID iD orcid.org/0000-0002-1070-7371

Catalogue record

Date deposited: 25 Oct 2018 16:30
Last modified: 26 Nov 2021 06:28

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Contributors

Author: Ingvi Gunnarsson
Author: Edda S. Aradóttir
Author: Eric H. Oelkers
Author: Deirdre E. Clark
Author: Magnús Þór Arnarson
Author: Bergur Sigfússon
Author: Sandra Ó. Snæbjörnsdóttir
Author: Juerg M. Matter ORCID iD
Author: Martin Stute
Author: Bjarni M. Júlíusson
Author: Sigurður R. Gíslason

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