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pentane, mass transfer, bitumen, heavy hyrdocarbons, diffusion

Sadighian, Ardalan

Supervisor and department: Shaw, John Chemical and Material Engineering

Examining committee member and department: Deutsch, Clayton Mining and Petroleum Engineering Yeung, Anthony Chemical and Material Engineering

Department: Department of Chemical and Materials Engineering


Date accepted: 2010-01-05T17:08:52Z

Graduation date: 2010-06

Degree: Master of Science

Degree level: Master's

Abstract: The demand for accurate bitumen-pentane mass transfer data was the main motivation behind this research. Difficulties such as complex phase behavior, high viscosity and opacity of the hydrocarbon invariably lead to failure of conventional techniques to measure mass transfer coefficients involving heavy oils. To address this issue, X-ray transmission tomography has been employed for such measurements. The initial set of experiments in this study measured the free mutual diffusion coefficient of pentane-Athabasca-bitumen, as well as pentane-atmospheric residue. In addition, forced mass transfer between pentane and both bitumen and atmospheric residue was studied. Forced mass transfer between pentane and these two heavy oils followed a similar pattern when normalized and the pattern is consistent with prevailing understanding. However, mass transfer rates between pentane and Athabasca atmospheric residue are one order of magnitude smaller than for the corresponding bitumen case. Impacts on the effectiveness of proposed production and refining processes are discussed.

Language: English

DOI: doi:10.7939-R3DK73

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.

Autor: Sadighian, Ardalan



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