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Experimental PVT Study of the Phase Behavior of CO2 + Heavy Oil Mixtures Open Access


Other title
Phase Behavior
Heavy Oil
Type of item
Degree grantor
University of Alberta
Author or creator
Khaleghi, Keivan
Supervisor and department
Shaw, John (Chemical & Materials Engineering)
Examining committee member and department
Thundat, Thomas (Chemical & Materials Engineering)
Chalaturnyk, Rick (Geotechnical Engineering)
Dechaine, Greg (Chemical & Materials Engineering)
Gerlich, Adrian (Chemical & Materials Engineering)
Department of Chemical and Materials Engineering

Date accepted
Graduation date
Master of Science
Degree level
In this work, the phase behavior of Athabasca bitumen + CO2 and Maya crude oil + CO2 is briefed. A literature review is presented on the previous research works (mostly experimental studies) done on CO2 + heavy oil and similar mixtures. Important aspects of phase behavior such as type of phase behavior, the onset CO2 concentration of LLV behavior, K-point (L1=V, L2) data, two-phase critical point (L=V), CO2 solubility in liquid phase and asphaltene precipitation are investigated. Different schemes, inspired by Henry’s law and conjugate measurements, to estimate the phase boundaries of mixtures in two-phase region are presented and tested on the literature data. Furthermore, solubility of CO2 in the liquid phase, type of phase behavior and phase diagrams and new critical points data as well as LLV onset concentration data for the subject mixtures are presented in a broad range of temperature, pressure and composition. Some liquid-liquid diffusion data for the two subject mixtures are also presented.
License granted by Keivan Khaleghi ( on 2011-07-19T17:54:52Z (GMT): 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 the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein 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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