Methane hydrate dissociation rates as 0.1 MPa and temperatures above 272K

We performed rapid depressurization experiments on methane hydrate under isothermal conditions above 272 K to determine the amount and rate of methane evolution. Sample temperatures rapidly drop below 273 K and stabilize near 272.5 K during dissociation. This thermal anomaly and the persistence of m...

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Bibliographic Details
Main Authors: Durham, W. B., Circone, S., Stern, L. A., Kirby, S. H., Pinkston, J. C.
Other Authors: United States. Department of Energy. Office of the Assistant Secretary for Defense Programs.
Format: Article in Journal/Newspaper
Language:English
Published: Lawrence Livermore National Laboratory 1999
Subjects:
Dissociation
Gas Hydrates
Methane
Drilling
54 Environmental Sciences
Depressurization
03 Natural Gas
Methane hydrate
Online Access:http://digital.library.unt.edu/ark:/67531/metadc623609/
Description
Summary:We performed rapid depressurization experiments on methane hydrate under isothermal conditions above 272 K to determine the amount and rate of methane evolution. Sample temperatures rapidly drop below 273 K and stabilize near 272.5 K during dissociation. This thermal anomaly and the persistence of methane hydrate are consistent with the reported recovery of partially dissociated methane hydrate from ocean drilling cores.

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