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Skip to Search Results- 1Ahad, Nuvaid
- 1Apan, Ioan-Tudor
- 1Budnar Subramanya, Annapoorna Shruthi
- 1Carvalho do Prado, Glaucia H
- 1Garcia, Jose Luis
- 1González Nieves, Vanessa
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Spring 2013
In every thermal upgrading process, short-chain hydrocarbons contain a part of the gas byproducts. These compounds are hydrogen-rich materials, which are considered as low value wastes. In this study, the efforts were made to catalytically convert these off-gases to liquid fuels. Synthetic gases...
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Fall 2013
Bitumen, as one of the most important unconventional sources of energy, has long been an attractive source for production of liquid fuels. It is important to improve the yield and quality of the useful products resulting from bitumen upgrading processes so that the best outcome can be achieved...
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The Role of Sulfur during the Cracking of n-Hexadecane and Cold Lake Bitumen with alpha-Fe2O3 and Steam
DownloadSpring 2013
Coke produced during bitumen upgrading has a high heteroatom content and low economic value. To improve feed efficiency, cracking of hexadecane and bitumen with α-Fe2O3 and water has been studied to decrease coke yield, while increasing sulfur content. Compared to thermal cracking, catalytic...
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Use of a solvent in the oxidative desulfurization of bitumen via autoxidation; effects on viscosity and oxidation
DownloadSpring 2014
This work describes the effect that including a solvent in the reaction media of the autoxidation of Cold Lake bitumen has on the viscosity and also on the oxidation degree reached. The comparison of viscosity was performed both in the basis of equal residence time and equal oxygen conversion...
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Coal Liquefaction Liquid Quality: Influence of Temperature and Heating Approach on Solvent Extraction of Coal
DownloadFall 2014
This project evaluated the impact of reaction temperature and of additional heating steps on the quality of the liquids obtained from solvent extraction of a lignite coal with tetralin. The points of focus were the coal liquid yield, physical properties, aromatic content and iron pyrite...
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Fall 2015
Canadian oilsands bitumen contains one of the highest amounts of asphaltenes (16-20 wt %) among all crude oils. Asphaltenes are the lowest value fraction of bitumen. It differs from the other fractions of bitumen because of its insolubility in paraffinic solvents. Asphaltenes are insoluble in...
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Fall 2015
Canadian oil sands derived bitumen is a form of petroleum that has a high density and viscosity. One of the potential causes of the high viscosity of the oil sands bitumen is acid-base interactions. The main purpose of this project was to determine the influence of acid treatment and base...
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Fall 2015
In this work, low temperature ozonation of Canadian Athabasca bitumen with ozone-enriched air in the temperature range of 140 to 160°C was investigated. Due to the resonance hybrid structure of ozone, it reacts directly and indirectly with the hydrocarbon molecules. Indirect ozone reaction...
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Characterization of residue from direct coal liquefaction and determination of its potential applicability as a source of fuel
DownloadSpring 2015
Direct coal liquefaction is a technology for producing liquid products from coal. One of the by-products from this process is coal liquefaction residue, which is remaining coal that was not converted to liquid products during the liquefaction process. The residue is enriched in mineral matter and...
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Spring 2016
Canada has the world’s largest oilsands reserves. Part of the reserves is being considered as marginal and is not profitable to recover using current technology. Autoxidation (oxidation with air) is a potential upgrading strategy to produce more valuable products from the oilsands derived bitumen...