論文

2022年3月

Superheating of Structure I Gas Hydrates within the Structure II Cyclopentane Hydrate Shell

JOURNAL OF PHYSICAL CHEMISTRY LETTERS
  • Satoshi Takeya
  • ,
  • Sanehiro Muromachi
  • ,
  • Akio Yoneyama
  • ,
  • Keiichi Hirano
  • ,
  • Kazuyuki Hyodo
  • ,
  • John A. Ripmeester

13
9
開始ページ
2130
終了ページ
2136
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/acs.jpclett.2c00264
出版者・発行元
AMER CHEMICAL SOC

The superheated state of methane (CH4) hydrate that exists under the surface ice layer can persist for considerable lengths of time, which showed promise as a method for storing and transporting natural gas. This study extends this further by coating sI CH4 hydrate with one of several sII hydrates, thus eliminating the need for a defect-free continuous interface between the sI and sII hydrates. Gas hydrate crystals were kept intact above their dissociation temperature by immersing them in liquid cyclopentane (CP), as observed with powder X-ray diffraction and X-ray CT methods. It was observed that placing the CH4 hydrate in CP converted the outer layer of CH4 hydrate to a thin layer of CP hydrate at around 270 K under atmospheric pressure, which is similar to 80 K higher than the usual dissociation temperature. It was also observed that sI CO2 hydrate and C2H6 hydrate could be preserved by CP hydrate.

リンク情報
DOI
https://doi.org/10.1021/acs.jpclett.2c00264
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000772195200011&DestApp=WOS_CPL
ID情報
  • DOI : 10.1021/acs.jpclett.2c00264
  • ISSN : 1948-7185
  • Web of Science ID : WOS:000772195200011

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