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Methane hydrate - Melting and memory
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UNSPECIFIED (2000) Methane hydrate - Melting and memory. In: 3rd International Conference on Gas Hydrates, SALT LAKE CITY, UTAH, JUL 18-22, 1999. Published in: GAS HYDRATES: CHALLENGES FOR THE FUTURE, 912 pp. 474-482. ISBN 1-57331-242-8. ISSN 0077-8923.
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Abstract
We present the results of a long timescale molecular dynamics simulation of a methane hydrate/methane gas interface formed along the [001] hydrate surface. The simulations were performed at 15-20 degrees C above the stable hydrate temperature so that we were able to observe melting under conditions that were sufficiently gentle to allow any residual order associated with the memory effect for hydrate nucleation to be identified. The simulations have been analyzed using a set of novel order parameters designed specifically to quantify the microscopic molecular structure associated with the different phases of water. The simulations do show an enhanced level of ice- and clathrate-structure in the liquid water that forms when the hydrate decomposes, but there is no evidence of significant clusters of the ordered water.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science | ||||
Series Name: | ANNALS OF THE NEW YORK ACADEMY OF SCIENCES | ||||
Journal or Publication Title: | GAS HYDRATES: CHALLENGES FOR THE FUTURE | ||||
Publisher: | NEW YORK ACAD SCIENCES | ||||
ISBN: | 1-57331-242-8 | ||||
ISSN: | 0077-8923 | ||||
Editor: | Holder, GD and Bishnoi, PR | ||||
Official Date: | 2000 | ||||
Dates: |
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Volume: | 912 | ||||
Number of Pages: | 9 | ||||
Page Range: | pp. 474-482 | ||||
Publication Status: | Published | ||||
Title of Event: | 3rd International Conference on Gas Hydrates | ||||
Location of Event: | SALT LAKE CITY, UTAH | ||||
Date(s) of Event: | JUL 18-22, 1999 |
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