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Performance of Waterborne Polyurethanes in Inhibition of Gas Hydrate Formation and Corrosion: Influence of Hydrophobic Fragments

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dc.contributor.author Pavelyev R.S.
dc.contributor.author Zaripova Y.F.
dc.contributor.author Yarkovoi V.V.
dc.contributor.author Vinogradova S.S.
dc.contributor.author Razhabov S.
dc.contributor.author Khayarov K.R.
dc.contributor.author Nazarychev S.A.
dc.contributor.author Stoporev A.S.
dc.contributor.author Mendgaziev R.I.
dc.contributor.author Semenov A.P.
dc.contributor.author Valiullin L.R.
dc.contributor.author Varfolomeev M.A.
dc.contributor.author Kelland M.A.
dc.date.accessioned 2021-02-25T20:56:13Z
dc.date.available 2021-02-25T20:56:13Z
dc.date.issued 2020
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/162719
dc.description.abstract The design of new dual-function inhibitors simultaneously preventing hydrate formation and corrosion is a relevant issue for the oil and gas industry. The structure-property relationship for a promising class of hybrid inhibitors based on waterborne polyurethanes (WPU) was studied in this work. Variation of diethanolamines differing in the size and branching of N-substituents (methyl, n-butyl, and tert-butyl), as well as the amount of these groups, allowed the structure of polymer molecules to be preset during their synthesis. To assess the hydrate and corrosion inhibition efficiency of developed reagents pressurized rocking cells, electrochemistry and weight-loss techniques were used. A distinct effect of these variables altering the hydrophobicity of obtained compounds on their target properties was revealed. Polymers with increased content of diethanolamine fragments with n- or tert-butyl as N-substituent (WPU-6 and WPU-7, respectively) worked as dual-function inhibitors, showing nearly the same efficiency as commercial ones at low concentration (0.25 wt%), with the branched one (tert-butyl; WPU-7) turning out to be more effective as a corrosion inhibitor. Commercial kinetic hydrate inhibitor Luvicap 55 W and corrosion inhibitor Armohib CI-28 were taken as reference samples. Preliminary study reveals that WPU-6 and WPU-7 polyurethanes as well as Luvicap 55 W are all poorly biodegradable compounds; BODt/CODcr (ratio of Biochemical oxygen demand and Chemical oxygen demand) value is 0.234 and 0.294 for WPU-6 and WPU-7, respectively, compared to 0.251 for commercial kinetic hydrate inhibitor Luvicap 55 W. Since the obtained polyurethanes have a bifunctional effect and operate at low enough concentrations, their employment is expected to reduce both operating costs and environmental impact.
dc.subject corrosion inhibitor
dc.subject dual function inhibitor
dc.subject flow assurance
dc.subject kinetic hydrate inhibitor
dc.subject methane-propane hydrate
dc.subject waterborne polyurethane
dc.title Performance of Waterborne Polyurethanes in Inhibition of Gas Hydrate Formation and Corrosion: Influence of Hydrophobic Fragments
dc.type Article
dc.relation.ispartofseries-issue 23
dc.relation.ispartofseries-volume 25
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS-2020-25-23-SID85097123398


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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