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Investigation of the Adsorption of Model and Oil Sands Process-Affected Water Naphthenic Acids on Graphite
DownloadSpring 2015
Naphthenic acids (NAs) are constituents of bitumen in the oil sands deposits in northern Alberta, Canada. The extraction process of bitumen creates an enormous amount of wastewater called oil sands process affected waters (OSPW). This OSPW contains elevated concentrations of NAs, and other...
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New Approaches to Thermodynamics-based Predictive Modelling of Gas Chromatography and Comprehensive Two-dimensional Gas Chromatography
DownloadSpring 2019
Thermodynamics-based predictive models of retention in gas chromatography and comprehensive two-dimensional gas chromatography have been demonstrated to provide high prediction accuracy across a wide range of separation conditions. They generally predict better than retention index-based models...
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Fall 2015
Oil sands bitumen is increasingly recovered by injecting steam into reservoirs using the energy intensive Steam assisted gravity drainage (SAGD) process. Interest in improving recovery and energy efficiencies have led to an interest in injecting light hydrocarbons along with or instead of steam...
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Spring 2013
Coagulation/Flocculation/Sedimentation (CFS), petroleum coke (PC) adsorption, and zero valent iron (ZVI) oxidation-enhanced by PC were applied for the remediation of oil sands process-affected water (OPSW), generated from oil sands operations in northern Alberta, Canada. OSPW is a complex mixture...
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Probing Surface Heterogeneity, Electrochemical Properties and Bubble-Solid Interaction Mechanisms of Sulfide Minerals in Flotation
DownloadSpring 2017
The colloidal stability governed by various surface interactions including van der Waals (VDW) interaction, electrical double layer (EDL) interaction, hydrophobic interaction, and some other interactions, plays an important role in a wide range of natural phenomena and engineering applications....
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Quantifying the effects of dissolved nitrogen and carbon dioxide on drying pressure of hydrophobic nanopores
Download2023-05-26
Binyaminov, Hikmat, Elliott, Janet A. W.
The effects of a dissolved gas on the behavior of liquid in cylindrical nanopores are investigated in the framework of Gibbsian composite system thermodynamics and classical nucleation theory. An equation is derived relating the phase equilibrium of a mixture of a subcritical solvent and a...
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Surface Interaction Mechanisms between Deformable Bubbles and Hydrophobic Surfaces in Aqueous Solutions
DownloadSpring 2018
Deformable bubbles in complex fluidic systems are crucial components in a variety of traditional and emerging industrial processes, where their surface interactions with hydrophobic surfaces play an important role in realizing the targeted functionalities. In this project, a bubble probe atomic...
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2021-02-02
Shardt, Nadia, Wang, Yingnan, Jin, Zhehui, Elliott, Janet
It is desirable to predict the surface tension of liquid mixtures for a wide range of compositions, temperatures, and pressures, but current state-of-the-art calculations (e.g., density gradient theory) are computationally expensive. We propose a computationally simple—but accurate—semi-empirical...
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The treatment of oil sands process-affected water by submerged ceramic membrane microfiltration system
DownloadFall 2014
With the rapid expansion of the oil sands exploitation in Northern Alberta over the past decade, oil sands process-affected water (OSPW) management has become a significant issue. In this study, the use of a submerged microfiltration was proposed as a potential process for pretreating OSPW....