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Permanent link (DOI): https://doi.org/10.7939/R3V345

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Adsorption of selected organic solvents on clay & sand by inverse gas chromatography Open Access

Descriptions

Other title
Subject/Keyword
illite
smectite
bitumen
inverse gas chromatography
kaolinite
heat of adsorption
oil sands
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
El-Thaher, Nayef
Supervisor and department
Choi, Philip (Chemical Engineering)
Examining committee member and department
Liu, Yang (Civil & Environmental Engineering)
de Klerk, Arno (Chemical Engineering)
Department
Department of Chemical and Materials Engineering
Specialization

Date accepted
2010-01-12T20:14:52Z
Graduation date
2010-06
Degree
Master of Science
Degree level
Master's
Abstract
The technique of Inverse Gas Chromatography (IGC) was employed for the study of the interactions between various organic solvents with various types of the major inorganic materials (clay minerals and sand) found in Alberta’s oil sands. Heat of adsorption (-∆H) was measured for each solvent with respect to each of the four studied inorganic materials. The calculation we used was based on the Infinite Dilution Thermodynamics approach used by Katsanos et. al. [Journal of Chromatography A. 795, 133-184 (1998)]. Retention time data is converted into Retention Volume; ∆H is then obtained by a plot vs. 1/T. The solvents studied were straight chain, branched and cyclic alkanes, alkenes, aromatics, and ketones. The inorganic materials studied were kaolinite, illite, illite-smectite mixed layer, and sand. Our results show that solvents had significantly less affinity for sand when compared to the three types of clay studied. Additionally, solvent affinity to illite had appreciable difference when compared to kaolinite and the mixed layer of illite-smectite. Furthermore, increase in carbon number leads to increased adsorption to the clay. Branched or cyclic alkanes have slightly lower adsorption to clay when compared to straight chain alkane of the same carbon number. Double bonds significantly increase solvent affinity to clay, but have no effect on sand. Lastly, alcohols and ketones have very high affinity to clay that no elution occurred when either solvent was injected into the GC and only ketone eluted when sand was the stationary phase in the GC column.
Language
English
DOI
doi:10.7939/R3V345
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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