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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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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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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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Spring 2016
Fischer–Tropsch is a process whereby a gaseous mixture of carbon monoxide (CO) and hydrogen (H2), called syngas, is converted into hydrocarbons, oxygenates and water. After the Fisher–Tropsch reaction the reaction product is cooled down and one of the product phases is a liquid stream known as...
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Physical Properties of Bitumen Distillation Fractions and Solvent Effect on Free Radical Content
DownloadSpring 2022
The main target of bitumen upgrading is to reduce its viscosity. One of the pathways to achieve it is visbreaking. It takes place through thermal cracking by a free radical mechanism. The impact of the bulk liquid (solvent) environment on persistent free radical content was evaluated. Electron...
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Spring 2020
Budnar Subramanya, Annapoorna Shruthi
Bitumen partial upgrading technologies aim to produce a product that meets viscosity and density specifications for pipeline transport with little to no addition of diluents. Thermal cracking processes are attractive for partial upgrading since they result in an increase in the light fractions....
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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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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 2016
Bitumen extracted from Canadian oil-sands has a high viscosity, which limits its transportation. Field upgrading has become an option to overcome that limitation, without having to dilute the bitumen. During the field upgrading of bitumen, solvent deasphalting in combination with thermal cracking...
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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...