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Kinetics and mechanism of the formation of CO 2 hydrate
Author(s) -
Shindo Yuji,
Lund Per Christer,
Fujioka Yuichi,
Komiyama Hiroshi
Publication year - 1993
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550250908
Subject(s) - hydrate , chemistry , clathrate hydrate , dissolution , kinetics , diffusion , thermodynamics , organic chemistry , physics , quantum mechanics
This article proposes a mechanism of CO 2 hydrate formation taking into account both diffusion and reaction, and gives an analysis of its kinetics. The most important assumptions on the model are that water dissolves into liquid CO 2 and reacts to form CO 2 hydrate, and that the hydrate blocks the dissolution and diffusion of water. Computational simulations were conducted, and the model proposed explains well the many observations on the CO 2 hydrate formation in previous articles. It is concluded that liquid CO 2 disposed in a deep ocean will form a very thin film of CO 2 hydrate, and this will greatly control the CO 2 diffusion in the ocean. © 1993 John Wiley & Sons, Inc.