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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la904857e
|2 doi
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|a eng
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1 |
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|a Saha, Dipendu
|e verfasserin
|4 aut
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|a Accelerated formation of THF-H2 clathrate hydrate in porous media
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 08.09.2010
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|a Date Revised 26.05.2010
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Porous media were used to control the hydrogen clathrate particle size in order to accelerate its formation kinetics. Stoichiometric tetrahydrofuran-hydrogen binary clathrate hydrates with approximately 1 wt % hydrogen loading formed in the mesopores of four porous media with median pore diameters of 49, 65, 100, and 226 A at 270 K and hydrogen pressure of 65 bar. The minimum formation time for the tetrahydrofuran-hydrogen binary clathrate hydrates was 27 min in a porous medium with a median pore diameter of 49 A, which is 6-22 times faster than the tetrahydrofuran-hydrogen binary clathrate hydrates formed in the bulk ice. The clathrate formation time was found to increase with pore size of the porous media. A modified shrinking core kinetic model was used to calculate the diffusivity of hydrogen in the tetrahydrofuran-hydrogen binary clathrate hydrates. Hydrogen diffusivities in the tetrahydrofuran-hydrogen binary clathrate hydrates were found to be on the order of 10(-18)-10(-19) m(2)/s and decrease with increasing pore size or clathrate particle size
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|a Journal Article
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1 |
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|a Deng, Shuguang
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 11 vom: 01. Juni, Seite 8414-8
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|x 1520-5827
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| 773 |
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|g volume:26
|g year:2010
|g number:11
|g day:01
|g month:06
|g pages:8414-8
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|u http://dx.doi.org/10.1021/la904857e
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