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dc.contributor.authorNiu, Zheng
dc.contributor.authorManica, Rogerio
dc.contributor.authorLi, Zuoli
dc.contributor.authorHe, Xiao
dc.contributor.authorSjøblom, Johan
dc.contributor.authorXu, Zhenghe
dc.date.accessioned2019-06-18T12:41:44Z
dc.date.available2019-06-18T12:41:44Z
dc.date.created2019-06-04T16:44:41Z
dc.date.issued2019
dc.identifier.citationColloids and Surfaces A: Physicochemical and Engineering Aspects. 2019, 575 283-291.nb_NO
dc.identifier.issn0927-7757
dc.identifier.urihttp://hdl.handle.net/11250/2601218
dc.description.abstractEstablishing interfacial science to understand molecular mechanisms of stabilizing water in heavy crude oil (W/O) emulsions is challenging due to non-transparent nature of crude oil even in diluted systems, as most of the interfacial property measurements are based on visualization of the experimental systems. This study investigates whether interfacial properties measured using transparent O/W emulsion systems could be used to understand the stability of W/O emulsion systems. With the same chemistry of interfacially active polyaromatic compounds (C5Pe and C5PeC11) in xylene as the model oil, the interfacial tension, crumpling ratio, dilatational rheology and coalescence time of W/O and O/W systems were measured. For less surface active C5PeC11, the interfacial tensions for W/O and O/W systems were similar. For more surface active C5Pe, the interfacial tension of the W/O system was lower than that of the O/W system, while the film rigidity and viscoelasticity of the W/O system were higher than that of the O/W system. At low C5Pe concentration, the coalescence time for the W/O system was lower than that for the O/W system with the coalescence time for the W/O system being higher at higher C5Pe concentrations. The results reveal that even though the interfacial properties measured using reverse O/W system exhibit similar qualitative trends, care should be taken when quantitatively studying W/O emulsions using interfacial property measurements of the O/W system due to the difference in most of the interfacial properties measured using the W/O and O/W systems.nb_NO
dc.language.isoengnb_NO
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0927775719304170?via%3Dihub
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleInterfacial properties pertinent to W/O and O/W emulsion systems prepared using polyaromatic compoundsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionsubmittedVersionnb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber283-291nb_NO
dc.source.volume575nb_NO
dc.source.journalColloids and Surfaces A: Physicochemical and Engineering Aspectsnb_NO
dc.identifier.doihttps://doi.org/10.1016/j.colsurfa.2019.05.011
dc.identifier.cristin1702772
dc.description.localcode© 2019. This is the authors’ accepted and refereed manuscript to the article. Locked until 6.05.2021 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/nb_NO
cristin.unitcode194,66,30,0
cristin.unitnameInstitutt for kjemisk prosessteknologi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.fulltextpostprint
cristin.fulltextpreprint
cristin.qualitycode1


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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