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Spring 2016

Ahitan, Sourabh

Global phase behavior calculations based on 150 n-alkane + aromatic and n-alkane + naphthenic hydrocarbon binary mixtures were performed. These calculations were compared with experimental measurements whenever possible, and additional measurements were made as part of this work. The widely used...

Fall 2012

Nikooyeh, Kasra

Unwanted phase separation of asphaltenes poses significant challenges in production and processing of heavy oils and bitumen. The analysis and prediction of asphaltene precipitation behaviors and asphaltene-diluent interactions are typically treated either from a solution thermodynamics or a...

Spring 2011

Saber, Nima

Phase behaviour information is essential for the development and optimization of hydrocarbon resource production, transport and refining technologies. Experimental data sets for mixtures containing heavy oil and bitumen are sparse as phase behaviour data are difficult to obtain and cost remains...

Fall 2018

Chowdhury, Sourav

Heavy oils are nano-colloids comprising a continuous maltene-rich liquid phase and a nano-dispersed asphaltene-rich phase separable by filtration that are macroscopically homogeneous. The asphaltene-rich phase can aggregate and deposit, causing technological risk and process operation challenges...

2006

Smith, Angela Y

Fall 2012

Bagheri, Mehrdad

We have used photothermal cantilever deflection spectroscopy (PCDS) for selective and sensitive detection of hydrocarbons with a particular emphasis on monitoring naphtha physisorbed on cantilevers. In PCDS, molecules physisorbed on a bi-material microcantilever are illuminated with a...

Spring 2016

Miriyala, Naresh

Micro and nano electromechanical sensors have been explored for various applications as highly sensitive mass sensors up to a mass resolution of a single proton and even down to a level of yoctogram mass. Such gravimetric sensors lack intrinsic selectivity and typically rely on the...

Fall 2018

Ghoraishi Kahangi, Maryam Sadat

Due to their ability to measure extremely small displacements and forces, nanomechanical cantilevers have attracted considerable attention from numerous scientific communities, each exploring a variety of applications. Though typically operated in either vacuum or air, operation of the device in...

Fall 2018

Nickel, Matthew R

Thin film diagnostics have been proposed as a solution to the growing need for point-of-care diagnostic tests. Diagnostics based on anodized aluminum-tantalum thin films use interference colours to detect the adsorption of protein layers on a surface. The purpose of this work was to develop a...

Spring 2022

Tulegenova, Diana

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...