Search
Skip to Search Results- 1Afshar, Shima
- 1Amundarain, Jesus
- 1Ansari, Nesma Nasir
- 1Baessa, Muaadh Ali
- 1Berahman, Behnam
- 1Bobicki, Erin R.
- 53Department of Chemical and Materials Engineering
- 10Department of Civil and Environmental Engineering
- 7Department of Mechanical Engineering
- 4Department of Agricultural, Food, and Nutritional Science
- 2Department of Agricultural, Food and Nutritional Science
- 2Department of Chemistry
- 8Xu, Zhenghe (Chemical and Materials Engineering)
- 5Liu, Qingxia (Chemical and Materials Engineering)
- 3Gupta, Rajender (Chemical and Materials Engineering)
- 3Yeung, Anthony (Chemical and Materials Engineering)
- 3Zeng, Hongbo (Chemical and Materials Engineering)
- 2Amirfazli, Alidad (Mechanical Engineering)
-
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...
-
Petrophysical properties of bitumen from the Upper Devonian Grosmont reservoir, Alberta, Canada
DownloadFall 2009
The Upper Devonian Grosmont reservoir in Alberta, Canada, is the single largest carbonate bitumen reservoir in the world, with an estimated 400 billion barrels of bitumen in place. The Grosmont bitumen formed from light crude oil via extensive biodegradation, which produced extremely high in-situ...
-
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...
-
Characterization of Athabasca asphaltenes separated physically and chemically using small-angle X-ray scattering
DownloadFall 2010
Athabasca asphaltenes were characterized using small-angle X-ray scattering (SAXS) with synchrotron radiation. Two methods were used to separate asphaltenes from Athabasca bitumen. Conventional chemical separation by precipitation with n-pentane, and physical separation realized by passing...
-
Dynamics of spontaneous initial spreading and spreading of a hydrodynamically driven droplet under the influence of surrounding pressure
DownloadFall 2021
We investigate experimentally the early time dynamics of spontaneous spreading of silicone oils with various viscosities at elevated surrounding pressures. The surrounding medium pressure is increased in a monotone fashion starting from atmospheric pressure to a maximum value of 30 megapascal...
-
Fall 2016
Athabasca oil sands contain 8 to 14% bitumen and are recovered using surface mining or steam assisted gravity drainage (SAGD). During primary upgrading of bitumen, the vacuum residuum from the distillation column is sent to the solvent de-asphalting unit where a paraffinic solvent is used to...
-
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...
-
Fall 2012
Better definition of asphaltene structure is needed to develop new technology for upgrading, and to understand various bitumen properties. Analysis of asphaltene structure is hampered by aggregation of molecules at a length scale of 5 to 10 nm. At 300°C, the addition of aromatic solvents can...
-
Spring 2010
Most crude oils contain traces of vanadyl porphyrins within their asphaltene fraction. Although these metals are only present in trace quantities, they have a significant detrimental impact on crude oil processing units; therefore, their selective removal is highly desirable. The current work...
-
Spring 2017
In this research, flocculation of fractionated asphaltenes was studied using dynamic light scattering (DLS). Three asphaltene fractions were obtained based on its adsorption characteristics onto calcium carbonate. The DLS results showed that the irreversibly-adsorbed asphaltenes (Irr-Ads),...