ERA

Download the full-sized PDF of Distribution of oil sands formation water in bitumen frothDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R34P4H

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Distribution of oil sands formation water in bitumen froth Open Access

Descriptions

Other title
Subject/Keyword
Oil sands -- Alberta
Bitumen -- Refining -- Alberta
Emulsions -- Research
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Jia, Bei
Supervisor and department
Masliyah, Jacob (Chemical and Materials Engineering)
Xu, Zhenghe (Chemical and Materials Engineering)
Examining committee member and department
Szymanski, Jozef (Civil and Environmental Engineering)
Zeng, Hongbo (Chemical and Materials Engineering)
Department
Department of Chemical and Materials Engineering
Specialization

Date accepted
2010-04-08T14:35:35Z
Graduation date
2010-06
Degree
Master of Science
Degree level
Master's
Abstract
Bitumen froth from oil sands extraction typically contains 60 wt.% bitumen, 30 wt.% water, and 10 wt.% solids. To meet downstream process specifications, the water and solids in bitumen froth have to be removed. The objective of this study is to identify the source of the water reporting to the bitumen froth. The water comes from two sources: formation water contained in mined oil sands ore, about 3-7 wt.%; and processing water added during the extraction process to recover bitumen from oil sands. Determining the distribution of the formation water will enable us to go one step further to understand the effect of formation water on water removal from bitumen froth. After Denver Cell flotation process, the electrical conductivity of the emulsified water, free water and tailings water was determined. The results showed that the conductivity of emulsified water was higher than other water samples, indicating that high salinity formation water preferentially reported to the bitumen froth. To better differentiate distribution of formation water among various process streams, oil sands extraction was carried out using heavy water instead of normal water as processing water, the density of collected water samples was measured by high precision density meter. However, no conclusive result could be obtained by this method. To obtain more accurate quantification of formation water distribution, cobalt as chemical tracer was introduced in the processing water. Following the same procedure of oil sands extraction and water samples collection as in conductivity measurement and heavy water density measurement, the concentration of cobalt in various product streams was determined accurately by Atomic-Absorption spectroscopy. The percent of formation water in emulsified water was then calculated. To understand formation water distribution in the context of oil sands ore characteristics, different types of ores were tested. The results showed that the characteristics of an oil sands ore were decisive factor determining formation water distribution. It appeared that preferential distribution of formation water in the bitumen froth was detrimental to froth treatment.
Language
English
DOI
doi:10.7939/R34P4H
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.
Citation for previous publication

File Details

Date Uploaded
Date Modified
2014-04-29T20:18:34.964+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 948748
Last modified: 2015:10:12 19:45:11-06:00
Filename: Bei_Jia_Spring 2010 .pdf
Original checksum: 4c53f6327499e10fb317947d2d8843d9
Well formed: true
Valid: true
File title: Microsoft Word - Bei_Jia_Spring 2010 .doc
File author: HP_Administrator
Page count: 102
Activity of users you follow
User Activity Date