Towards a green hydrate inhibitor : Imaging antifreeze proteins on clathrates

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DOIResolve DOI: http://doi.org/10.1371/journal.pone.0008953
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TypeArticle
Journal titlePLOS one
Volume5
Issue2
Pagese8953
AbstractThe formation of hydrate plugs in oil and gas pipelines is a serious industrial problem and recently there has been an increased interest in the use of alternative hydrate inhibitors as substitutes for thermodynamic inhibitors like methanol. We show here that antifreeze proteins (AFPs) possess the ability to modify structure II (sII) tetrahydrofuran (THF) hydrate crystal morphologies by adhering to the hydrate surface and inhibiting growth in a similar fashion to the kinetic inhibitor poly-N-vinylpyrrolidone (PVP). The effects of AFPs on the formation and growth rate of high-pressure sII gas mix hydrate demonstrated that AFPs are superior hydrate inhibitors compared to PVP. These results indicate that AFPs may be suitable for the study of new inhibitor systems and represent an important step towards the development of biologically-based hydrate inhibitors.
Publication date
LanguageEnglish
AffiliationNRC Steacie Institute for Molecular Sciences; National Research Council Canada
Peer reviewedYes
NPARC number17673447
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Record identifier451a27a1-da78-49d6-876d-e76b5d90c823
Record created2011-04-01
Record modified2016-05-09
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