Thermodynamic and Molecular-Scale Analysis of New Systems of Water-Soluble Hydrate Formers + CH4 | Zendy

Jong-Won Lee | Zendy; Hailong Lu | Zendy; Igor Moudrakovski | Zendy; Christopher I. Ratcliffe | Zendy; John A. Ripmeester | Zendy

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Thermodynamic and Molecular-Scale Analysis of New Systems of Water-Soluble Hydrate Formers + CH₄

Author(s) -

Jong-Won Lee,

Hailong Lu,

Igor Moudrakovski,

Christopher I. Ratcliffe,

John A. Ripmeester

Publication year - 2010

Publication title -

the journal of physical chemistry b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.864

H-Index - 392

eISSN - 1520-6106

pISSN - 1520-5207

DOI - 10.1021/jp106466s

Subject(s) - hydrate , clathrate hydrate , chemistry , ether , phase (matter) , ketone , molecule , crystallography , organic chemistry

Among a variety of cyclic ether, cyclic ester, and cyclic ketone compounds, six new formers were found to form binary sII or sH hydrates with CH(4) gas. Hydrate-phase equilibria for all the hydrate formers were measured. The results obtained showed distinct relationships between the hydrate-phase equilibrium curve and the molecular size of the guests. In addition, 2-methyltetrahydrofuran and 3-methyltetrahydrofuran, or 4-methyl-1,3-dioxane and 4-methyl-1,3-dioxolane, showed different hydrate structures even though they have similar chemical structures. Such structural differences can provide useful information on the critical guest size, which determines hydrate crystal structures according to the size of the captured guest.

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