On the thermodynamic stability of clathrate hydrates

Hideki Tanaka

    Research output: Contribution to journalArticlepeer-review

    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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