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Kinetics on the dissolution of CO2 into water from the surface of CO2 hydrate at high pressure

✍ Scribed by Yuji Shindo; Yuichi Fujioka; Kazuhisa Takeuchi; Hiroshi Komiyama

Publisher: John Wiley and Sons
Year: 1995
Tongue: English
Weight: 383 KB
Volume: 27
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550270607

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✦ Synopsis

Kinetic study on the dissolution of COz from the surface of a liquid COz droplet in water was conducted, and a mechanism of the decay of C02 hydrate was proposed. The model was applied to the experimental data which showed that the radius of liquid COP droplets in water reduced linearly with time. It was proved that the dissolution rate of COz into water is dominated by the decay of COz hydrate on the surface of the droplet. The rate constant of the decay of COz hydrate was estimated to be 1.25 X m s-'. From a viewpoint of liquid COz disposal in the deep ocean, it is predicted that the thin membrane of COz hydrate at the interface between seawater and liquid CO2 will control the dissolution of COz into seawater.

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