On the thermodynamic stability of clathrate hydrates

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7 Citations (Scopus)

Abstract

The thermodynamic stability of clathrate hydrates is investigated by theoretically examining the free energy of formation of clathrate hydrates encaging propane and argon. The total free energy is divided into several contributions: the interaction between water and guest molecules, the entropic contribution arising from the combinations of cage occupancy, and the free energy due to intermolecular vibrations. The method introduced here removes some of the assumptions of the van der Waals and Platteeuw theory. It is shown that the shift of the vibrational frequency of the host lattice destabilizes the clathrate hydrates thermodynamically.

Original languageEnglish
Pages (from-to)55-60
Number of pages6
JournalCanadian Journal of Physics
Volume81
Issue number1-2
DOIs
Publication statusPublished - Jan 1 2003

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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