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Permanent link (DOI): https://doi.org/10.7939/R37M20

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Characterization of Fine Solids in Bitumen Froth Before and After Hydrothermal Reactions Open Access

Descriptions

Other title
Subject/Keyword
Hydrothermal reaction, bitumen, oil sands
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Zhao, Jun
Supervisor and department
Gray, Murray
Examining committee member and department
Liu, Qi (Chemical and Material Engineering)
Zeng, Hongbo (Chemical and Material Engineering)
Gray, Murray (Chemical and Material Engineering)
Department
Department of Chemical and Materials Engineering
Specialization
Chemical Engineering
Date accepted
2013-09-17T13:56:51Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
In this study, the mineralogy, surface properties, and morphology of fine solids in bitumen froth before and after hydrothermal reactions were investigated. It was observed that clay minerals such as kaolinite and illite did not go through significant mineralogical changes after the reaction. However, the siderite and pyrite contained in the bitumen froth were found to convert to pyrrhotite after the reaction. This conversion could be advantageous during direct hydrothermal froth upgrading as it fixes sulfur. The fine solids in bitumen froth were found to possess diverse wettability but they turned uniformly more oil-wet. Consequently, the fine solids lost their emulsion stabilization function as they mostly stayed in the oil phase. The filterability of the fine solids in the bitumen froth was also significantly increased, possibly due to a change in wettability and particle size. Therefore, hydrothermal reactions of bitumen froth can destabilize water-in-oil emulsions and facilitate fine solids removal.
Language
English
DOI
doi:10.7939/R37M20
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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