Recently, clathrate hydrate has attracted much attention because of its energy gas enclathration
phenomenon. Since energy gas such as methane, ethane, and hydrogen could be stored in solid
hydrate form, clathrate hydrate research has been considerably focused on energy gas storage and
transportation medium. Especially, methane hydrate, which is crystalline compound that are
formed by physical interaction between water and relatively small sized guest molecules, can
contain about as much as 180 volumes of gas at standard pressure and temperature condition. To
utilize gas hydrate as energy storage and transportation medium, two important key features:
storage capacity and storage condition must be considered. Herein, we report the inclusion
phenomena of methane occurred on tert-butyl alcohol hydrate through thermodynamic
measurement and spectroscopic analysis by using powder X-ray diffractometer, and 13C solidstate
NMR. From spectroscopic analysis, we found the formation of sII type (cubic, Fd3m)
clathrate hydrate by introducing methane gas into tert-butyl alcohol hydrate whereas tert-butyl
alcohol hydrate alone does not form clathrate hydrate structure. Under equilibrium condition,
pressure-lowering effect of methane + tert-butyl alcohol double hydrate was also observed. The
present results give us several key features for better understanding of inclusion phenomena
occurring in the complex hydrate systems and further developing methane or other gas storage
and transportation technique.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:BVAU.2429/1106 |
| Date | 07 1900 |
| Creators | Park, Youngjune, Cha, Minjun, Shin, Woongchul, Cha, Jong-Ho, Lee, Huen, Ripmeester, John A. |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | text |
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