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Skip to Search Results- 1Ahmed, Nirob
- 1Ali, Mohamed Ali Hassan
- 1Amundarain, Jesus
- 1Ansari, Nesma Nasir
- 1Berahman, Behnam
- 1Cardozo, Samuel D.
- 6Xu, Zhenghe (Chemical and Materials Engineering)
- 3Gupta, Rajender (Chemical and Materials Engineering)
- 3Liu, Qingxia (Chemical and Materials Engineering)
- 3Zeng, Hongbo (Chemical and Materials Engineering)
- 2Gray, Murray (Chemical and Materials Engineering)
- 2Gray, Murray R. (Chemical and Materials Engineering)
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Spring 2016
The tendency of asphaltenes to aggregate in crude oil is observed at SATP and is enhanced at elevated temperatures. At these conditions, asphaltenes aggregation is a problem as it will ultimately lead to mesophase formation, a precursor of coke, known for causing plugging and fouling of...
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Development of Solvent Selection Criteria Based on Diffusion Rate, Mixing Quality, and Solvent Retrieval for Optimal Heavy-Oil and Bitumen Recovery at Different Temperatures
DownloadFall 2015
Heavy-oil and bitumen recovery requires high recovery factors to offset the extreme high cost of the process. Attention has been given to solvent injection for this purpose and it has been observed that high recoveries are achievable when combined with steam injection. Heavier (“liquid”) solvents...
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Dynamic Demulsification Mechanism of Asphaltene-Stabilized Water-in-Oil Emulsions by Ethylcellulose
DownloadFall 2015
In previous studies, nontoxic and biodegradable ethylcellulose (EC) was shown to be capable of breaking water-in-diluted bitumen emulsions. Nevertheless, the demulsification mechanism of EC has not been correlated to its effect on the physical properties of stabilizing interfacial asphaltene...
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Electrocoalescence of Water Droplets in Oil Emulsions: Effect of Electric Fields, Surfactants, and Chemical Demulsifiers
DownloadSpring 2019
Stabilization of water-in-oil droplets during bitumen extraction and refining process poses a major challenge in the oil sands industry. These crude oil emulsions are stabilized by rigid films at water droplet-oil interfaces. The salty water remaining in oil causes equipment corrosion, catalyst...
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Evaluation of Mechanical Performance of Asphalt Emulsion Stabilized Base Course Using Asphaltenes or Cement
DownloadFall 2021
Civilization has become highly reliant on the road industry in recent years for both commercial and personal purposes. A typical road's function is to promote traffic flow comfortably and safely. The pavement is a structure made up of natural ground with varying layers on top that can distribute...
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Extending Depletion Flocculation Phase Behavior Models to Partially Soluble and Aggregating Colloids—Asphaltenes
DownloadFall 2015
Mixtures of colloids + non-adsorbing polymers + good solvents are well known to exhibit multiphase behaviors that are driven by the depletion flocculation mechanism where one phase, designated a colloid gas, is largely comprised of polymer and solvent, while the other phase, designated a colloid...
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Fall 2011
The removal of solid particulates from crude oils and hydrocarbon streams is a common challenge in refining. Finding a method for efficient removal of the suspended solids in the oil streams is the main objective of this work. Paraffinic and aqueous treatment and the combination of these two...
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Fall 2011
This research was undertaken to study the performance of paraffinic solvents at higher temperatures for heavy oil/bitumen recovery. Heavy oil or bitumen saturated glass bead packs, Berea sandstone and carbonate cores were used in the experiments to represent different types of pore structures,...
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Fall 2017
Asphaltenes are the heaviest components in crude oil. It is generally believed that asphaltenes adsorbed at oil/water interface can form a protective layer to stabilize the water-in-oil emulsions. Therefore, it is of both fundamental and practical importance to understand the adsorption kinetics...
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Life Cycle Assessment of Transportation Fuels from Canada’s Oil Sands through Development of Theoretical Engineering Models
DownloadFall 2014
Oil sands in Canada are significant in fulfilling the current and the future energy demands of North America. The development of these resources, besides the increased awareness in global carbon management, has given way to various policy regulations such as the Low Carbon Fuel Standard (LCFS)...