High-pressure / High-temperature Behavior of the Methane-Ammonia- Water System up to 3 GPa
Melting phase relations in the methane-ammonia-water system up to 3 GPa have been obtained in a series of in situ experiments in externally heated diamond anvil cells. The melting temperature of methane clathrate hydrates increases rapidly above pressures of ~ 1.5 GPa, and does not appear to be sign...
| Published in: | Zeitschrift für Naturforschung B |
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| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Walter de Gruyter GmbH
2006
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1515/znb-2006-1215 https://www.degruyter.com/view/journals/znb/61/12/article-p1573.xml https://www.degruyter.com/document/doi/10.1515/znb-2006-1215/xml https://www.degruyter.com/document/doi/10.1515/znb-2006-1215/pdf |
| Summary: | Melting phase relations in the methane-ammonia-water system up to 3 GPa have been obtained in a series of in situ experiments in externally heated diamond anvil cells. The melting temperature of methane clathrate hydrates increases rapidly above pressures of ~ 1.5 GPa, and does not appear to be significantly affected by the presence of ammonia. The reaction of the hydrate formation at pressures 2 - 3 GPa is kinetically impeded. Our data show that the high-pressure methane hydrate has the maximum melting temperature among the clathrate hydrates studied so far. |
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