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Permanent link (DOI): https://doi.org/10.7939/R3BS65

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Effect of oil sands slurry conditioning on bitumen recovery from oil sands ores Open Access

Descriptions

Other title
Subject/Keyword
Denver flotation cell
Slurry conditioning effect
Bitumen recovery
Oil sands
Laboratory hydrotransport extraction system
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Qiu, Longhui
Supervisor and department
Masliyah, Jacob H. (Chemical and Materials Engineering)
Xu, Zhenghe (Chemical and Materials Engineering)
Examining committee member and department
Kuru, Ergun (Civil and Environmental Engineering)
Department
Department of Chemical and Materials Engineering
Specialization

Date accepted
2010-09-29T22:37:44Z
Graduation date
2010-11
Degree
Master of Science
Degree level
Master's
Abstract
The effect of slurry conditioning on bitumen recovery and bitumen froth quality has been studied by using three oil sands ores tested with a laboratory hydrotransport extraction system (LHES) and a Denver flotation cell. Tests with the LHES show that an increase in slurry conditioning time yielded a lowered bitumen recovery for a long flotation time (30 min). Longer slurry conditioning time led to a better bitumen froth quality regardless of flotation time. However the over conditioning could be compensated by higher conditioning temperatures and higher slurry flow velocities. Tests with the Denver flotation cell show that the increase in slurry conditioning time resulted in a higher bitumen recovery and a better bitumen froth quality for both good and poor processing ores for a shorter flotation time of 5 min. For a longer flotation time of 20 min, increasing slurry conditioning time had little impact on bitumen recovery but led to a slightly better bitumen froth quality for the good processing ore whereas no effect on bitumen froth quality of the poor processing ore. Results also show that higher slurry temperatures and stronger mechanical energy input were beneficial to both bitumen recovery and bitumen froth quality for all three oil sands ores tested on both devices.
Language
English
DOI
doi:10.7939/R3BS65
Rights
License granted by Longhui Qiu (longhui@ualberta.ca) on 2010-09-29T17:15:15Z (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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