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THERMODYNAMIC AND SPECTROSCOPIC ANALYSIS OF TERTBUTYL ALCOHOL HYDRATE: APPLICATION FOR THE METHANE GAS STORAGE AND TRANSPORTATION

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Title: THERMODYNAMIC AND SPECTROSCOPIC ANALYSIS OF TERTBUTYL ALCOHOL HYDRATE: APPLICATION FOR THE METHANE GAS STORAGE AND TRANSPORTATION
Author: Park, Youngjune; Cha, Minjun; Shin, Woongchul; Cha, Jong-Ho; Lee, Huen; Ripmeester, John A.
Subject Keywords gas hydrate;methane;tert-butyl alcohol;clathrate;storage;transportation;International Conference on Gas Hydrates;ICGH
Issue Date: 2008-07
Publicly Available in cIRcle 2008-07-23
Citation: THERMODYNAMIC AND SPECTROSCOPIC ANALYSIS OF TERT-BUTYL ALCOHOL HYDRATE: APPLICATION FOR THE METHANE GAS STORAGE AND TRANSPORTATION. Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, CANADA, July 6-10, 2008.
Abstract: 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.
Affiliation: OtherOther
URI: http://hdl.handle.net/2429/1106
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