Investigation of Interfacial and Rheological Properties of Asphaltenes at Solid-Liquid and Liquid-Liquid Interfaces

dc.contributor.advisorBiswal, Sibani Lisaen_US
dc.creatorLin, Yu-Jiunen_US
dc.date.accessioned2019-05-17T13:38:34Zen_US
dc.date.available2019-05-17T13:38:34Zen_US
dc.date.created2018-05en_US
dc.date.issued2018-06-07en_US
dc.date.submittedMay 2018en_US
dc.date.updated2019-05-17T13:38:34Zen_US
dc.description.abstractAsphaltenes are surface-active polyaromatic molecules in crude oil that are known to deposit onto surfaces of pipelines and stabilize water-in-oil droplets by flocculating at interfaces, resulting highly viscous emulsions. This has led to significant flow assurance problems in oil production. Therefore, a thorough investigation of the behavior of asphaltene aggregation at interfaces is needed. Microfluidic devices are used as a novel methodology for probing asphaltene deposition and asphaltene-stabilized emulsions. In particular, homogeneous and porous-media microfluidic designs are developed to represent various flow conditions typical of that found in oil flow processes. A variety of factors influencing asphaltene deposition are investigated, including asphaltene solubility, chemical dispersants, the presence of the brine, and solvent effects. Furthermore, the property of asphaltenes at interfaces is characterized using interfacial rheology and chemical analysis. By understanding the nature and the behaviors of asphaltenes at interfaces, we improve our ability to design cost effective mitigation strategies. This includes the development of a new generation of chemical inhibitors/demulsifiers and improved methods for prevention and treatment of this problem.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationLin, Yu-Jiun. "Investigation of Interfacial and Rheological Properties of Asphaltenes at Solid-Liquid and Liquid-Liquid Interfaces." (2018) Diss., Rice University. <a href="https://hdl.handle.net/1911/105620">https://hdl.handle.net/1911/105620</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/105620en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectasphaltene depositionen_US
dc.subjectemulsionen_US
dc.subjectmicrofluidicsen_US
dc.subjectflow assuranceen_US
dc.subjectinterfacial rheologyen_US
dc.titleInvestigation of Interfacial and Rheological Properties of Asphaltenes at Solid-Liquid and Liquid-Liquid Interfacesen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentChemical and Biomolecular Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US
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