Stability of methane hydrate at high-pressure and high-temperature of up to 40 GPa and 573 K

Hirokazu Kadobayashi, Hiroaki Ohfuji, Hisako Hirai, Michika Ohtake, Yoshitaka Yamamoto

Research output: Contribution to journalConference articlepeer-review

Abstract

High-pressure and high-temperature experiments were performed to investigate the stability of methane hydrate under 6-40 GPa and 298-573 K using synchrotron X-ray powder diffraction in combination with a diamond anvil cell. The results thus obtained revealed that methane hydrate decomposes into solid methane and ice VII at temperatures considerably lower than the melting curves of solid methane and ice VII in the pressure range of 6-40 GPa.

Original languageEnglish
Article number012007
JournalJournal of Physics: Conference Series
Volume1609
Issue number1
DOIs
Publication statusPublished - 2020 Aug 17
Externally publishedYes
Event27th AIRAPT International Conference on High Pressure Science and Technology - Rio de Janeiro, Brazil
Duration: 2019 Aug 42019 Aug 9

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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