Transformation of methane hydrate to carbon dioxide hydrate: In situ Raman spectroscopic observations

Ji Ho Yoon; Taro Kawamura; Yoshitaka Yamamoto; Takeshi Komai

doi:10.1021/jp049683l

Transformation of methane hydrate to carbon dioxide hydrate: In situ Raman spectroscopic observations

Ji Ho Yoon, Taro Kawamura, Yoshitaka Yamamoto, Takeshi Komai

Research output: Contribution to journal › Article › peer-review

99 Citations (Scopus)

Abstract

An in situ Raman spectroscopy study on the guest replacement of methane hydrate with carbon dioxide at high pressures is presented. The surface shielding of carbon dioxide hydrate formed in the outer layer plays a key function, retarding dissociation of methane hydrate in the core. A thorough investigation of Raman spectra of the vibration modes of water molecules enables us to understand the phenomena of the coexistence of methane and carbon dioxide hydrates and water phase for guest replacement reactions. These results should aid further efforts in the study of guest stability of clathrate hydrate as well as future technological applications.

Original language	English
Pages (from-to)	5057-5059
Number of pages	3
Journal	Journal of Physical Chemistry A
Volume	108
Issue number	23
DOIs	https://doi.org/10.1021/jp049683l
Publication status	Published - 2004 Jun 10
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry

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abstract = "An in situ Raman spectroscopy study on the guest replacement of methane hydrate with carbon dioxide at high pressures is presented. The surface shielding of carbon dioxide hydrate formed in the outer layer plays a key function, retarding dissociation of methane hydrate in the core. A thorough investigation of Raman spectra of the vibration modes of water molecules enables us to understand the phenomena of the coexistence of methane and carbon dioxide hydrates and water phase for guest replacement reactions. These results should aid further efforts in the study of guest stability of clathrate hydrate as well as future technological applications.",

author = "Yoon, {Ji Ho} and Taro Kawamura and Yoshitaka Yamamoto and Takeshi Komai",

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T2 - In situ Raman spectroscopic observations

AU - Yoon, Ji Ho

AU - Kawamura, Taro

AU - Yamamoto, Yoshitaka

AU - Komai, Takeshi

PY - 2004/6/10

Y1 - 2004/6/10

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AB - An in situ Raman spectroscopy study on the guest replacement of methane hydrate with carbon dioxide at high pressures is presented. The surface shielding of carbon dioxide hydrate formed in the outer layer plays a key function, retarding dissociation of methane hydrate in the core. A thorough investigation of Raman spectra of the vibration modes of water molecules enables us to understand the phenomena of the coexistence of methane and carbon dioxide hydrates and water phase for guest replacement reactions. These results should aid further efforts in the study of guest stability of clathrate hydrate as well as future technological applications.

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