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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2096
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dc.contributor.authorVeluswamy, Hari Prakash-
dc.contributor.authorAng W.J.-
dc.contributor.authorZhao D.-
dc.contributor.authorLinga P.-
dc.date.accessioned2020-10-06T14:08:27Z-
dc.date.available2020-10-06T14:08:27Z-
dc.date.issued2015-
dc.identifier.citationChemical Engineering Science(2015), 132(): 186-199-
dc.identifier.issn92509-
dc.identifier.urihttps://doi.org/10.1016/j.ces.2015.03.061-
dc.identifier.urihttp://repository.iitr.ac.in/handle/123456789/2096-
dc.description.abstractIn this study, the kinetics of mixed hydrogen/tetrahydrofuran (THF) hydrate formation in presence of cationic dodecyl trimethylammonium chloride (DTAC) surfactant and non-ionic Tween-20 (Polysorbate 20) surfactant was evaluated. Stoichiometric concentration of 5.6mol% THF solution with varying surfactant concentrations from 0.01wt% to 1wt% were experimented and their effect on the mixed hydrogen/THF hydrate formation was studied. Marginal improvement in the mixed hydrogen/THF hydrate formation rates were observed for both the chosen surfactants with maximum of about 20% increase using 0.5wt% DTAC and 0.1wt% Tween-20. Decomposition kinetics of mixed hydrogen/THF hydrates using thermal stimulation (?T=20K) with and without stirring showed that stirring improved the decomposition kinetics with t90 of 22.2(±0.8)min in comparison to t90 of 29.1(±0.6)min for the experiments conducted without stirring. The presence of surfactant did not significantly affect the decomposition kinetics for experiments conducted both with and without stirring. Methane/THF mixed hydrate formation under similar experimental conditions studied show that the presence of 0.5wt% DTAC surfactant resulted in reduction of hydrate formation rates by approximately 20%. The effect of surfactant in presence of THF characteristically differs depending upon the guest gas and the system under investigation. © 2015 Elsevier Ltd.-
dc.language.isoen_US-
dc.publisherElsevier Ltd-
dc.relation.ispartofChemical Engineering Science-
dc.subjectGas hydrates-
dc.subjectHydrogen hydrates-
dc.subjectKinetics-
dc.subjectMethane hydrate-
dc.subjectSurfactant-
dc.subjectTetrahydrofuran-
dc.titleInfluence of cationic and non-ionic surfactants on the kinetics of mixed hydrogen/tetrahydrofuran hydrates-
dc.typeArticle-
dc.scopusid55603750900-
dc.scopusid55784699900-
dc.scopusid55510434800-
dc.scopusid57189447961-
dc.affiliationVeluswamy, H.P., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117 585, Singapore-
dc.affiliationAng, W.J., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117 585, Singapore-
dc.affiliationZhao, D., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117 585, Singapore-
dc.affiliationLinga, P., Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117 585, Singapore-
dc.description.correspondingauthorLinga, P.; Department of Chemical and Biomolecular Engineering, National University of SingaporeSingapore; email: praveen.linga@nus.edu.sg-
Appears in Collections:Journal Publications [CH]

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