| Autor: |
Connelly, D.P.1 (AUTHOR) dpc@noc.ac.uk, Bull, J.M.2 (AUTHOR), Flohr, A.1,2 (AUTHOR), Schaap, A.1 (AUTHOR), Koopmans, D.3 (AUTHOR), Blackford, J.C.4 (AUTHOR), White, P.R.5 (AUTHOR), James, R.H.2 (AUTHOR), Pearce, C.1 (AUTHOR), Lichtschlag, A.1 (AUTHOR), Achterberg, E.P.6 (AUTHOR), de Beer, D.7 (AUTHOR), Roche, B.2 (AUTHOR), Li, J.2 (AUTHOR), Saw, K.2 (AUTHOR), Alendal, G.8 (AUTHOR), Avlesen, H.9 (AUTHOR), Brown, R.1 (AUTHOR), Borisov, S.M.10 (AUTHOR), Böttner, C.6 (AUTHOR) |
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| Zdroj: |
Renewable & Sustainable Energy Reviews. Sep2022, Vol. 166, pN.PAG-N.PAG. 1p. |
| Abstrakt: |
Carbon capture and storage is a key mitigation strategy proposed for keeping the global temperature rise below 1.5 °C. Offshore storage can provide up to 13% of the global CO 2 reduction required to achieve the Intergovernmental Panel on Climate Change goals. The public must be assured that potential leakages from storage reservoirs can be detected and that therefore the CO 2 is safely contained. We conducted a controlled release of 675 kg CO 2 within sediments at 120 m water depth, to simulate a leak and test novel detection, quantification and attribution approaches. We show that even at a very low release rate (6 kg day−1), CO 2 can be detected within sediments and in the water column. Alongside detection we show the fluxes of both dissolved and gaseous CO 2 can be quantified. The CO 2 source was verified using natural and added tracers. The experiment demonstrates that existing technologies and techniques can detect, attribute and quantify any escape of CO 2 from sub-seabed reservoirs as required for public assurance, regulatory oversight and emissions trading schemes. • An artificial CO 2 release demonstrated MMV techniques for offshore CCS. • Detection of leakage was demonstrated using acoustic, chemical and physical approaches. • Attribution of leakage was proved possible using artificial and natural tracer compounds. • Leakage quantification was possible using approaches not previously applied to CCS studies. • Non-catastrophic leaks were detected at levels below those that would cause environmental harm. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
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Full Text from ScienceDirect