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dc.contributor.authorSimon, Sebastien Charles
dc.contributor.authorSaadat, Marzieh
dc.contributor.authorRuwoldt, Jost
dc.contributor.authorDudek, Marcin
dc.contributor.authorEllis, Ross J.
dc.contributor.authorØye, Gisle
dc.date.accessioned2020-11-16T14:19:00Z
dc.date.available2020-11-16T14:19:00Z
dc.date.created2020-11-11T13:59:00Z
dc.date.issued2020
dc.identifier.citationACS Omega. 2020, .en_US
dc.identifier.issn2470-1343
dc.identifier.urihttps://hdl.handle.net/11250/2688074
dc.description.abstractThe goal of this article is to test the potential application of lignosulfonates (LSs) in crude oil production and processing. Three LS samples of varying hydrophobicity and average molecular weight were considered. First, the interfacial tension between brine and xylene and interfacial dilational rheology properties of LS samples were measured. It was found that the most surface-active LS sample has the lowest molecular weight in agreement with the results from the literature. In the presence of asphaltenes, all three LS samples were able to compete with asphaltenes, the most polar crude oil component, at the interface and form mixed LS−asphaltene interfaces. However, only the most surface-active LS sample among the three tested could fully desorb asphaltenes at the highest tested LS concentration (500 ppm). Second, three possible applications were screened. LSs were tested to prevent the formation of w/o crude oil emulsions or to break these. However, the opposite effect was observed, that is, stabilization of water-in-crude oil emulsions. The potential application of LS in produced water (PW) clarification was furthermore considered. The kinetics of PW clarification was found unaffected by the presence of LS, even at very high concentrations (1000 ppm). Finally, the potential of LS for enhanced oil recovery was assessed. The LS flood changed the surface wettability toward water wetness for one of the samples, yet LS injection did not recover additional oil beyond brine recovery. It was concluded that LS has interesting properties, such as the potential to compete with crude oil indigenous components at the oil/water interface. The stabilization action of LS was dominant over any destabilization effect, which led to the conclusion that LSs are more efficient for stabilizing emulsions rather than destabilizing.en_US
dc.description.abstractLignosulfonates in Crude Oil Processing: Interactions with Asphaltenes at the Oil/Water Interface and Screening of Potential Applicationsen_US
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.urihttps://pubs.acs.org/doi/10.1021/acsomega.0c04654
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleLignosulfonates in Crude Oil Processing: Interactions with Asphaltenes at the Oil/Water Interface and Screening of Potential Applicationsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber12en_US
dc.source.journalACS Omegaen_US
dc.identifier.doi10.1021/acsomega.0c04654
dc.identifier.cristin1846979
dc.relation.projectNorges forskningsråd: 269570en_US
dc.description.localcodeThis is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. DOI: 10.1021/acsomega.0c04654en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.fulltextoriginal
cristin.qualitycode1


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