Measurements of Binary Molecular Diffusion and Dispersion Coefficients of Urea and Ethyl Acetate

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dc.contributor.advisorHassanzadeh, Hassan
dc.contributor.authorKheirollahi, Shadi
dc.contributor.committeememberNassar, Nashaat
dc.contributor.committeememberNatale, Giovanniantonio
dc.dateFall Convocation
dc.date.accessioned2023-02-11T00:32:03Z
dc.date.embargolift2023-02-22
dc.date.issued2022-05-27
dc.description.abstractThe environmental impact of in-situ thermal bitumen recovery methods from oil sands has motivated the search for new solvents/chemicals to reduce energy intensity and greenhouse gas emissions. Recently, new solvents/chemicals have been examined on the laboratory and field-scale for co-injection with steam or hot water. However, the fate of the proposed chemicals/solvents in the subsurface has not been studied. Diffusion and dispersion coefficients of the injected chemicals are two important transport properties required to predict the fate of the injected solvents in the subsurface. Ethyl acetate and urea are among the chemicals that have been suggested to improve bitumen recovery from oil sands. However, there is a lack of accurate measurements of the diffusion and dispersion coefficients of these chemicals. To fill this gap, the longitudinal dispersion coefficients of binary liquid mixtures of ethyl acetate and urea were measured using the Taylor dispersion technique at various concentrations of solute and several flow rates by performing a series of displacement experiments through the sand-packed bed. New measurements of the concentration-dependent longitudinal dispersion coefficients in porous media of aqueous urea solution and ethyl acetate-water mixture are reported. In addition, experimental data for the binary diffusion coefficients of ethyl acetate-water systems over the entire range of compositions at temperatures from 298.15 K to 368.15 K are reported.
dc.identifier.citationKheirollahi, S. (2022). Measurements of Binary Molecular Diffusion and Dispersion Coefficients of Urea and Ethyl Acetate (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.
dc.identifier.urihttp://hdl.handle.net/1880/115849
dc.identifier.urihttps://dx.doi.org/10.11575/PRISM/40743
dc.language.isoenen
dc.language.isoEnglish
dc.publisher.facultyGraduate Studiesen
dc.publisher.facultySchulich School of Engineering
dc.publisher.institutionUniversity of Calgaryen
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.en
dc.subjectDispersion coefficient
dc.subjectMolecular diffusion coefficient
dc.subjectTaylor dispersion method
dc.subject.classificationEngineering--Chemical
dc.titleMeasurements of Binary Molecular Diffusion and Dispersion Coefficients of Urea and Ethyl Acetate
dc.typemaster thesis
thesis.degree.disciplineEngineering – Chemical & Petroleum
thesis.degree.grantorUniversity of Calgaryen
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
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