Search Results - "GRAY, Murray R"
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Kinetics and Properties of Asphaltene Adsorption on Surfaces
Published in Energy & fuels (16-02-2012)“…A quartz crystal microbalance (QCM) was used to probe asphaltene adsorption on gold surfaces and hydrophilic and hydrophobic silica particles. The adsorption…”
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2
Fundamentals of Partial Upgrading of Bitumen
Published in Energy & fuels (15-08-2019)“…In the past, transportation of heavy and bitumen to downstream refineries has been accomplished by either adding a diluent or converting the vacuum residue to…”
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3
Volume of mixing and solubility of water in Athabasca bitumen at high temperature and pressure
Published in Fluid phase equilibria (25-11-2013)“…With the merging of operating conditions for proposed high-temperature production and refining processes for heavy oil and bitumen, there is a growing interest…”
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4
Water Enhances the Aggregation of Model Asphaltenes in Solution via Hydrogen Bonding
Published in Energy & fuels (16-07-2009)“…The self-association properties of two 2,2′-bipyridine derivatives, 4,4′-bis(2-pyren-1-yl-ethyl)-2,2′-bipyridine (PBP) and…”
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5
Analysis of Force Interactions between AFM Tips and Hydrophobic Bacteria Using DLVO Theory
Published in Langmuir (16-06-2009)“…Microbial adhesion to surfaces and interfaces is strongly influenced by their structure and physicochemical properties. We used atomic force microscopy (AFM)…”
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6
Pyrolytic Decarboxylation and Cracking of Stearic Acid
Published in Industrial & engineering chemistry research (06-08-2008)“…The primary objective of this work was to study the pyrolytic conversion of fatty acids to produce deoxygenated, liquid hydrocarbon products for use as…”
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7
Application of atomic force microscopy in bacterial research
Published in Scanning (01-03-2010)“…The atomic force microscope (AFM) has evolved from an imaging device into a multifunctional and powerful toolkit for probing the nanostructures and surface…”
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8
Computational and Experimental Study of the Structure, Binding Preferences, and Spectroscopy of Nickel(II) and Vanadyl Porphyrins in Petroleum
Published in The journal of physical chemistry. B (18-02-2010)“…We present a computational exploration of five- and six-coordinate Ni(II) and vanadyl porphyrins, including prediction of UV−vis spectroscopic behavior and…”
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Steroid-Derived Naphthoquinoline Asphaltene Model Compounds: Hydriodic Acid Is the Active Catalyst in I2‑Promoted Multicomponent Cyclocondensation Reactions
Published in Organic letters (04-12-2015)“…A multicomponent cyclocondensation reaction between 2-aminoanthracene, aromatic aldehydes, and 5-α-cholestan-3-one has been used to synthesize model asphaltene…”
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10
Scalable, Chromatography-Free Synthesis of Alkyl-Tethered Pyrene-Based Materials. Application to First-Generation “Archipelago Model” Asphaltene Compounds
Published in Journal of organic chemistry (06-02-2015)“…In this paper, we report a highly efficient, scalable approach to the total synthesis of conformationally unrestricted, electronically isolated arrays of…”
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Quantitative Molecular Representation and Sequential Optimization of Athabasca Asphaltenes
Published in Energy & fuels (01-09-2004)“…The chemical complexity and diversity of an Athabasca asphaltene sample was described using a series of molecular representations. The molecular…”
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12
Observation of Liquid Crystals in Heavy Petroleum Fractions
Published in Energy & fuels (19-08-2010)“…In this work, we report for the first time the observation of naturally occurring discotic liquid-crystalline domains of ca. 100 μm in diameter in unreacted…”
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13
Stabilization of Oil-Water Emulsions by Hydrophobic Bacteria
Published in Applied and Environmental Microbiology (01-10-2004)“…Classifications Services AEM Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious Digg Facebook Google+ Mendeley Reddit…”
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14
Mechanisms of Asphaltene Aggregation: Puzzles and a New Hypothesis
Published in Energy & fuels (20-08-2020)“…In petroleum science, asphaltenes are well-known as the most refractory fraction of crude oil and remain infamous for problems in production, transportation,…”
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15
Two different mechanisms for adhesion of Gram-negative bacterium, Pseudomonas fluorescens LP6a, to an oil–water interface
Published in Colloids and surfaces, B, Biointerfaces (15-03-2008)“…Microbial adhesion to the oil–water interface is an important parameter in biodegradation of hydrocarbons to enhance uptake and metabolism of compounds with…”
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Competitive Adsorption of Toluene and n-Alkanes at Binary Solution/Silica Interfaces
Published in Journal of physical chemistry. C (26-11-2009)“…The competitive adsorption of toluene and n-alkanes at binary solution/silica interfaces was studied at room temperature using IR-visible sum frequency…”
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17
Supramolecular Assembly Model for Aggregation of Petroleum Asphaltenes
Published in Energy & fuels (21-07-2011)“…The components of petroleum asphaltenes exhibit complex bridged structures comprising sulfur, nitrogen, aromatic, and naphthenic groups linked by alkyl chains…”
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18
Whatsoever things are true: Hypothesis, artefact, and bias in chemical engineering research
Published in Canadian journal of chemical engineering (01-10-2021)“…For experimental research to offer valuable insights and predictions, its results and interpretation need to be properly validated. When the experiments deal…”
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Role of Chain Reactions and Olefin Formation in Cracking, Hydroconversion, and Coking of Petroleum and Bitumen Fractions
Published in Energy & fuels (01-05-2002)“…Although the mechanism of cracking of distillate fractions is well-known, the reactions that underlay conversion of the residue fractions of petroleum and…”
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20
Density functional theory investigation of the effect of axial coordination and annelation on the absorption spectroscopy of nickel(II) and vanadyl porphyrins relevant to bitumen and crude oils
Published in Canadian journal of chemistry (01-09-2013)“…The vanadium and nickel components in heavy oils and bitumen are important impurities in catalytic processing and form aggregates with other asphaltene…”
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