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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we present experimental arguments for the guest replacement of methane hydrate with carbon dioxide using in situ Raman spectroscopy at high pressures. The surface shielding of carbon dioxide hydrate formed in the outer layer plays a key function of retarded dissociation of methane hydrate in the core. The water phase produced during the replacement reaction allows the reaction to proceed rapidly by enhancing diffusion of both methane and carbon dioxide, resulting in complete and relatively fast recovery of methane gas from methane hydrate. These results may strongly encourage further efforts in the study of guest stability of clathrate hydrate and may provide useful applications for future technologies.

Original languageEnglish
Title of host publicationProceedings of the International Offshore and Polar Engineering Conference
Pages360-363
Number of pages4
Publication statusPublished - 2005 Dec 1
Externally publishedYes
Event15th International Offrshore and Polar Engineering Conference, ISOPE-2005 - Seoul, Korea, Republic of
Duration: 2005 Jun 192005 Jun 24

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2005
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other15th International Offrshore and Polar Engineering Conference, ISOPE-2005
CountryKorea, Republic of
CitySeoul
Period05/6/1905/6/24

Keywords

  • Carbon dioxide
  • Clathrate hydrate
  • Diffusion
  • Dissociation
  • Guest replacement
  • Methane
  • Raman spectroscopy

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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