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International Conference on Gas Hydrates (ICGH) (6th : 2008)

KINETICS OF HYDRATE FORMATION AND DECOMPOSITION OF METHANE IN SILICA SAND. Nam, Sung Chan; Linga, Praveen; Haligva, Cef; Ripmeester, John A.; Englezos, Peter

Abstract

Kinetics of hydrate formation and decomposition of methane hydrate formed in silica sand particles were studied in detail at three temperatures of 7.0, 4.0 and 1.0°C, respectively. A new apparatus was setup to study the decomposition behavior of the methane hydrate formed in the bed of silica sand particles. Six thermocouples are placed in different locations to study the temperature profiles during hydrate formation and decomposition experiments. Gas uptake measurement curves for the formation experiments and the gas release measurement curves for the decomposition experiment were determined from the experimental data. Percent conversion of water to hydrates was significantly higher for the experiments conducted at 4.0 and 1.0°C compared to 7.0°C. Recovery of methane occurred in two stages during the decomposition experiments carried out with a thermal stimulation approach at constant pressure. Methane recovery in the range of 95 to 98% was achieved.

Item Metadata

Title
KINETICS OF HYDRATE FORMATION AND DECOMPOSITION OF METHANE IN SILICA SAND.
Creator
Nam, Sung Chan; Linga, Praveen; Haligva, Cef; Ripmeester, John A.; Englezos, Peter
Contributor
University of British Columbia. Department of Chemical and Biological Engineering; International Conference on Gas Hydrates (6th : 2008 : Vancouver, B.C.)
Date Issued
2008-07
Description
Kinetics of hydrate formation and decomposition of methane hydrate formed in silica sand particles were studied in detail at three temperatures of 7.0, 4.0 and 1.0°C, respectively. A new apparatus was setup to study the decomposition behavior of the methane hydrate formed in the bed of silica sand particles. Six thermocouples are placed in different locations to study the temperature profiles during hydrate formation and decomposition experiments. Gas uptake measurement curves for the formation experiments and the gas release measurement curves for the decomposition experiment were determined from the experimental data. Percent conversion of water to hydrates was significantly higher for the experiments conducted at 4.0 and 1.0°C compared to 7.0°C. Recovery of methane occurred in two stages during the decomposition experiments carried out with a thermal stimulation approach at constant pressure. Methane recovery in the range of 95 to 98% was achieved.
Extent
388921 bytes
Subject
Methane; Gas hydrates; Silica sand; Decomposition; Formation
Genre
Conference Paper
Type
Text
File Format
application/pdf
Language
eng
Date Available
2008-07-18
Provider
Vancouver : University of British Columbia Library
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International
DOI
10.14288/1.0040988
URI
http://hdl.handle.net/2429/1027
Affiliation
Applied Science, Faculty of; Chemical and Biological Engineering, Department of; Non UBC
Citation
Nam, Sung Chan; Linga, Praveen; Haligva, Cef; Ripmeester, John; Englezos, Peter. 2008. KINETICS OF HYDRATE FORMATION AND DECOMPOSITION OF METHANE IN SILICA SAND. Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, CANADA, July 6-10, 2008.
Peer Review Status
Unreviewed
Copyright Holder
Englezos, Peter
Rights URI
http://creativecommons.org/licenses/by-nc-nd/4.0/
Aggregated Source Repository
DSpace

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Attribution-NonCommercial-NoDerivatives 4.0 International