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ID 34126
フルテキストURL
著者
Koyama, Yuji Department of Chemistry, Faculty of Science, Okayama University
Tanaka, Hideki Department of Chemistry, Faculty of Science, Okayama University
Koga, Kenichiro Department of Chemistry, Faculty of Science, Okayama University
抄録
Gas mixtures of methane and ethane form structure II clathrate hydrates despite the fact that each of pure methane and pure ethane gases forms the structure I hydrate. Optimization of the interaction potential parameters for methane and ethane is attempted so as to reproduce the dissociation pressures of each simple hydrate containing either methane or ethane alone. An account for the structural transitions between type I and type II hydrates upon changing the mole fraction of the gas mixture is given on the basis of the van der Waals and Platteeuw theory with these optimized potentials. Cage occupancies of the two kinds of hydrates are also calculated as functions of the mole fraction at the dissociation pressure and at a fixed pressure well above the dissociation pressure.
キーワード
STRUCTURE-II
POTENTIAL FUNCTIONS
ETHANE
METHANE
GAS
MOLECULES
MIXTURES
PROPANE
WATER
備考
Digital Object Identifer:10.1063/1.1850904
Published with permission from the copyright holder. This is the institute's copy, as published in Journal of Chemical Physics, Feb 2005, Volume 122, Issue 7.
Publisher URL:http://dx.doi.org/10.1063/1.1850904
Direct access to Thomson Web of Science record
Copyright © 2005 American Institute of Physics
発行日
2005-02-15
出版物タイトル
Journal of Chemical Physics
122巻
7号
出版者
American Institute of Physics
ISSN
0021-9606
NCID
AA00694991
資料タイプ
学術雑誌論文
言語
English
著作権者
American Institute of Physics
論文のバージョン
publisher
査読
有り
DOI
PubMed ID
Web of Sience KeyUT
Submission Path
physics_general/25