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Permanent link (DOI): https://doi.org/10.7939/R3DT30

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Sorption of Cyclohexane on Oil Sands Tailings Open Access

Descriptions

Other title
Subject/Keyword
non aqueous extraction
oil sands
sorption
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Vagi, Lisa
Supervisor and department
Gray, Murray (Chemical and Materials Engineering)
Examining committee member and department
Temelli, Feral (Agricultural, Food, and Nutritional Science)
Choi, Phillip (Chemical and Materials Engineering)
Gray, Murray (Chemical and Materials Engineering)
Department
Department of Chemical and Materials Engineering
Specialization
Chemical Engineering
Date accepted
2012-08-29T11:28:10Z
Graduation date
2012-11
Degree
Master of Science
Degree level
Master's
Abstract
The use of solvents for extraction of bitumen is attractive because no wet tailings are produced. Studies have already shown that hydrocarbon solvents can achieve the same level of bitumen recovery as the current aqueous extraction method. However, solvent recovery must be very efficient to avoid environmental impact and economic feasibility. In order to scale up solvent extraction processes, the adsorption and desorption interactions with mineral surfaces must be quantified. In this study, cyclohexane adsorption and desorption behaviour on clay is characterized by sorption isotherms performed at constant pressure for temperatures from 20 to 40°C, partial pressures of cyclohexane in nitrogen gas up to 10 kPa, and sample sizes from 50 mg to 2000 mg. The average monolayer coverage was calculated to be 0.056 mmol/g for a 50 mg sample. The average enthalpy of sorption was calculated to be about 40 kJ/mol.
Language
English
DOI
doi:10.7939/R3DT30
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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