Evaluating the potential of natural surfactants in the petroleum industry: The case of hydrophobins

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorBlesic, Marijanaen_US
dc.contributor.authorDichiarante, Valentinaen_US
dc.contributor.authorMilani, Robertoen_US
dc.contributor.authorLinder, Markusen_US
dc.contributor.authorMetrangolo, Pierangeloen_US
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorBiomolecular Materialsen
dc.contributor.organizationPolytechnic University of Milanen_US
dc.contributor.organizationVTT Technical Research Centre of Finlanden_US
dc.date.accessioned2018-04-04T09:38:47Z
dc.date.available2018-04-04T09:38:47Z
dc.date.issued2018-02en_US
dc.descriptionVoi avata lopullisen version Acriksessa 12 kuukautta julkaisemisen jälkeen: https://www.degruyter.com/dg/page/repository-policy (27.12.17/ Söderholm)
dc.description.abstractEnhancing oil recovery from currently available reservoirs is a major issue for petroleum companies. Among the possible strategies towards this, chemical flooding through injection of surfactants into the wells seems to be particularly promising, thanks to their ability to reduce oil/water interfacial tension that promotes oil mobilization. Environmental concerns about the use of synthetic surfactants led to a growing interest in their replacement with surfactants of biological origin, such as lipopeptides and glycolipids produced by several microorganisms. Hydrophobins are small amphiphilic proteins produced by filamentous fungi with high surface activity and good emulsification properties, and may represent a novel sustainable tool for this purpose. We report here a thorough study of their stability and emulsifying performance towards a model hydrocarbon mixture, in conditions that mimic those of real oil reservoirs (high salinity and high temperature). Due to the moderate interfacial tension reduction induced in such conditions, the application of hydrophobins in enhanced oil recovery techniques does not appear feasible at the moment, at least in absence of co-surfactants. On the other hand, the obtained results showed the potential of hydrophobins in promoting the formation of a gel-like emulsion 'barrier' at the oil/water interface.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationBlesic, M, Dichiarante, V, Milani, R, Linder, M & Metrangolo, P 2018, ' Evaluating the potential of natural surfactants in the petroleum industry : The case of hydrophobins ', Pure and Applied Chemistry, vol. 90, no. 2, pp. 305-314 . https://doi.org/10.1515/pac-2017-0703en
dc.identifier.doi10.1515/pac-2017-0703en_US
dc.identifier.issn0033-4545
dc.identifier.otherPURE UUID: f79a517f-b2f1-4520-ab53-05bdaedb5469en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/f79a517f-b2f1-4520-ab53-05bdaedb5469en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85037649061&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/18252885/Blesic_2017_Evaluating_the_potential_of_natural_surfactants.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/30609
dc.identifier.urnURN:NBN:fi:aalto-201804042072
dc.language.isoenen
dc.relation.ispartofseriesPure and Applied Chemistryen
dc.relation.ispartofseriesVolume 90, issue 2en
dc.rightsopenAccessen
dc.subject.keywordbiosurfactanten_US
dc.subject.keywordemulsionen_US
dc.subject.keywordenhanced oil recovery (EOR)en_US
dc.subject.keywordhydrophobinen_US
dc.subject.keywordICGC-6en_US
dc.titleEvaluating the potential of natural surfactants in the petroleum industry: The case of hydrophobinsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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