Phase transformation of methane hydrate under high pressure
In situ Raman spectroscopy is employed to study the phase behavior of methane hydrate at high pressure. The structure 1 of methane hydrate can be maintained up to 950 MPa at 299 K. The transformation of structure Istructure H+water+CH4 occurs at 880 MPa and 323 K. The structure H of methane hydrate,...
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Veröffentlicht in: | The Journal of chemical physics 2005-01, Vol.122 (2), p.024714-024714 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | In situ Raman spectroscopy is employed to study the phase behavior of methane hydrate at high pressure. The structure 1 of methane hydrate can be maintained up to 950 MPa at 299 K. The transformation of structure Istructure H+water+CH4 occurs at 880 MPa and 323 K. The structure H of methane hydrate, however, decomposes to methane and water at 960 MPa and 348 K. The initiation mechanism of methane hydrate sI is also discussed. |
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ISSN: | 0021-9606 1089-7690 |
DOI: | 10.1063/1.1830411 |