Role of Aqueous Phase Chemistry, Interfacial Film Properties, and Surface Coverage in Stabilizing Water-In-Bitumen Emulsions

Simple item page
atmire.migration.oldid4698
dc.contributor.advisorYarranton, Harvey
dc.contributor.authorRocha Arrieta, Jair Andres
dc.contributor.committeememberDong, Mingzhe
dc.contributor.committeememberSvrcek, William
dc.date.accessioned2016-08-04T15:17:22Z
dc.date.available2016-08-04T15:17:22Z
dc.date.issued2016
dc.date.submitted2016en
dc.description.abstractIn this thesis, several factors that influence the stability of asphaltene and bitumen stabilized water-in-oil emulsions are investigated including salt type, salt concentration, pH, interfacial film properties, surface coverage, drop size, and emulsion packing. Model water-in-oil emulsions were prepared from aqueous phases consisting of reverse osmosis water and salts (NaCl, CaCl2, Na2SO4, KCl and Na2CO3). The organic phases consisted of either asphaltenes or bitumen dissolved in solutions of heptane and toluene. Salt contents as low as 0.02 wt% (or 0.03M ionic strength) were found to significantly increase the stability of the emulsions regardless of the type of salt present in the aqueous phase. The increase in stability correlated with an increase in the mass and apparent molecular weight of asphaltenes adsorbed at the interface. A mass surface coverage of 5 mg/m² and an apparent molecular weight of 7000 g/mol appear to be the threshold required for stable emulsions.en_US
dc.identifier.citationRocha Arrieta, J. A. (2016). Role of Aqueous Phase Chemistry, Interfacial Film Properties, and Surface Coverage in Stabilizing Water-In-Bitumen Emulsions (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27677en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/27677
dc.identifier.urihttp://hdl.handle.net/11023/3164
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectEngineering--Chemical
dc.subjectEngineering--Mining
dc.subjectEngineering--Petroleum
dc.subject.classificationAsphaltenesen_US
dc.subject.classificationemulsion stabilityen_US
dc.subject.classificationoil sandsen_US
dc.subject.classificationinterfacial filmen_US
dc.subject.classificationmass adsorptionen_US
dc.titleRole of Aqueous Phase Chemistry, Interfacial Film Properties, and Surface Coverage in Stabilizing Water-In-Bitumen Emulsions
dc.typemaster thesis
thesis.degree.disciplineChemical and Petroleum Engineering
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
Files
Collections
Open Theses and Dissertations