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Permanent link (DOI): https://doi.org/10.7939/R3M43Z

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Separation and analysis of liquid crystalline material from heavy petroleum fractions Open Access

Descriptions

Other title
Subject/Keyword
differential scanning calorimetry
liquid crystals
photoacoustic infrared spectroscopy
petroleum
Athabasca bitumen
mass spectrometry
asphaltenes
fourier transform ion cyclotron resonance
phase transitions
polarized light microscopy
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Masik, Brady Kenneth
Supervisor and department
Shaw, John M. (Chemical and Materials Engineering)
Examining committee member and department
Mitra, Sushanta K. (Mechanical Engineering)
McCaffrey, William C. (Chemical and Materials Engineering)
Gray, Murray R. (Chemical and Materials Engineering)
Department
Department of Chemical and Materials Engineering
Specialization

Date accepted
2011-09-29T02:34:11Z
Graduation date
2011-11
Degree
Master of Science
Degree level
Master's
Abstract
Liquid crystalline domains were observed in fractions of heavy petroleum. Through a combination of polarized light microscopy and Photoacoustic Infrared Spectroscopy, liquid crystals were shown to form on the exterior surface of their parent materials. Analysis of materials using Differential Scanning Calorimetry and observations using cross polarized light microscopy both showed that the transition from liquid crystal to isotropic liquid upon heating is irreversible. An enriched sample of liquid crystalline material was extracted from Athabasca bitumen C5 asphaltenes by solvent extraction and analyzed using Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. The enriched sample was shown to have a lower and narrower molecular mass range and higher relative abundances of sulfur, oxygen and nitrogen than the parent asphaltenes. Observations, analysis methods and implications for petroleum separation are discussed in detail.
Language
English
DOI
doi:10.7939/R3M43Z
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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