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Skip to Search Results- 1Afshar, Shima
- 1Ahmed, Nirob
- 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)
- 2Amirfazli, Alidad (Mechanical Engineering)
- 2Babadagli, Tayfun (Civil and Environmental Engineering)
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Fall 2009
In this study, we describe the use of different silica materials to separate vanadium compounds from Asphaltenes. We used high performance flash chromatography separation method to separate asphaltenes at different solvent strengths on sea sand. The separation conditions were optimized for flow...
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Rheological behavior and nano-microstructure of complex fluids: Biomedical and Bitumen-Heavy oil applications
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The main objective of this research was to exploit the interrelations between the rheological behavior and nano-microstructure of complex fluids in solving two state-of-the-art problems, one in the field of biomedical engineering: controlling the amount and characteristics of bioaerosol droplets...
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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...
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Characterization of Athabasca asphaltenes separated physically and chemically using small-angle X-ray scattering
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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...
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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 2011
Liquid crystalline domains were observed in fractions of heavy petroleum. Through a combination of polarized light microscopy and Photoacoustic Infrared Spectroscopy, liquid crystals were shown to form on the exterior surface of their parent materials. Analysis of materials using Differential...
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Spring 2011
A Surface Forces Apparatus (SFA) was used in this study to investigate the fundamental surface forces in oil sand processing research. Asphaltene coated surfaces were chosen as the research topic due to the critical role of asphaltenes in oil sands processing, from bitumen extraction, froth...
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Fall 2011
Large polycyclic aromatic nitrogen containing asphaltene model compounds, with molecular weights from 535 to 702 g/mol, were catalytically hydrogenated and hydrodenitrogenated in the presence of a commercial NiMo/γAl2O3 catalyst in a stainless steel batch reactor at 370 °C and 17.9 MPa total...
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A Molecular Dynamics Study of the Dissolution of Asphaltene Model Compounds in Supercritical Fluids
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The demand for a new solvent to treat oilsands was behind the purpose of this project; molecular dynamics simulation was used in this study. Supercritical water, supercritical carbon dioxide and other selected organic solvents in their supercritical state were studied. Meso-tetraphenyl porphyrin...
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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...