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

INFLUENCE OF A SYNERGIST ON THE DISSOCIATION OF HYDRATES FORMED IN THE PRESENCE OF THE KINETIC INHIBITOR POLY VINYL CAPROLACTAM Gulbrandsen, Ann Cecilie; Svartaas, Thor Martin

Abstract

Laboratory tests have been performed using a stirred cell where SI and SII gas hydrates have been formed under the presence of the kinetic inhibitor Poly Vinyl Caprolactam (PVCap) and INHIBEX. The latter is a mixture containing 50wt% PVCap 2k and 50wt% butyl glycol. The effect of PVCap is enhanced by the presence of butyl glycol; the latter acts as a synergist for the former. Dissociation temperatures were obtained and compared for hydrates formed 1) in presence of PVCap and 2) in presence of INHIBEX. The effect of INHIBEX concentration on the temperature of dissociation was also investigated. Systems containing INHIBEX dissociated at lower temperatures than the corresponding systems with only PVCap present. Furthermore, 3000 ppm INHIBEX mixtures were found to have higher dissociation temperatures than 1500 ppm INHIBEX mixtures.

Item Metadata

Title
INFLUENCE OF A SYNERGIST ON THE DISSOCIATION OF HYDRATES FORMED IN THE PRESENCE OF THE KINETIC INHIBITOR POLY VINYL CAPROLACTAM
Creator
Gulbrandsen, Ann Cecilie; Svartaas, Thor Martin
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
Laboratory tests have been performed using a stirred cell where SI and SII gas hydrates have been formed under the presence of the kinetic inhibitor Poly Vinyl Caprolactam (PVCap) and INHIBEX. The latter is a mixture containing 50wt% PVCap 2k and 50wt% butyl glycol. The effect of PVCap is enhanced by the presence of butyl glycol; the latter acts as a synergist for the former. Dissociation temperatures were obtained and compared for hydrates formed 1) in presence of PVCap and 2) in presence of INHIBEX. The effect of INHIBEX concentration on the temperature of dissociation was also investigated. Systems containing INHIBEX dissociated at lower temperatures than the corresponding systems with only PVCap present. Furthermore, 3000 ppm INHIBEX mixtures were found to have higher dissociation temperatures than 1500 ppm INHIBEX mixtures.
Extent
128927 bytes
Subject
Gas hydrates; Dissociation; Kinetic inhibitors; Synergist; INHIBEX; Inhibitor dose; PVCap
Genre
Conference Paper
Type
Text
File Format
application/pdf
Language
eng
Date Available
2008-07-22
Provider
Vancouver : University of British Columbia Library
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International
DOI
10.14288/1.0041002
URI
http://hdl.handle.net/2429/1070
Affiliation
Non UBC
Citation
Gulbrandsen, Ann Cecilie; Svartaas, Thor Martin. 2008. INFLUENCE OF A SYNERGIST ON THE DISSOCIATION OF HYDRATES FORMED IN THE PRESENCE OF THE KINETIC INHIBITOR POLY VINYL CAPROLACTAM. 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
Gulbrandsen, Ann Cecilie; Svartaas, Thor Martin
Rights URI
http://creativecommons.org/licenses/by-nc-nd/4.0/
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DSpace

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Attribution-NonCommercial-NoDerivatives 4.0 International