CO2 Ocean Sequestration and CO2 Hydrate

CO2 ocean sequestration, which is thought to be a promising measure to mitigate global warming, can be classified mainly into the dissolution and the storage methods. On the evaluation of these measures, CO2 hydrate plays an important role, because CO2 becomes a hydrate in the ocean deeper than 500...

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Bibliographic Details
Published inThe Review of High Pressure Science and Technology Vol. 12; no. 1; pp. 40 - 49
Main Authors AYA, Izuo, YAMANE, Kenji, KOJIMA, Ryuji, NAMIE, Sadahiro
Format Journal Article
LanguageJapanese
Published The Japan Society of High Pressure Science and Technology 2002
Subjects
CO2
dissolution method
hydrate membrane strength
ocean sequestration
rebuilding of hydrate
solubility in hydrate region
storage method
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Summary:CO2 ocean sequestration, which is thought to be a promising measure to mitigate global warming, can be classified mainly into the dissolution and the storage methods. On the evaluation of these measures, CO2 hydrate plays an important role, because CO2 becomes a hydrate in the ocean deeper than 500 m (North Pacific Ocean)∼900 m (North Atlantic Ocean). The solubility of CO2 shows a dual nature (solid and liquid solubilities) in the hydrate forming region. Two types of unexpected hydrate membrane strength just below the dissociation temperature and in a CO2 saturated solution, and the rebuilding process under stressed conditions greatly influence the above two CO2 ocean sequestration methods.
ISSN:0917-639X
1348-1940
DOI:10.4131/jshpreview.12.40