Search Results - "Netzel, Daniel A."

Direct Separation and Quantitative Determination of (n-, Iso-)Alkanes in Neat Asphalt Using Urea Adduction and High-Temperature Gas Chromatography (HTGC) by Netzel, Daniel A, Rovani, Joseph F

“…Urea adduction and high-temperature gas chromatography were used to separate and quantify the amount of normal plus iso-alkanes (n-, iso-)alkanes in 13 neat…”
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Apparent Activation Energies for Molecular Motions in Solid Asphalt by Netzel, Daniel A

“…The hydrogen spin−lattice relaxation time in the rotating frame was measured for three whole asphalts at temperatures ranging from 20 to −45 °C. These data…”
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Quantitation of carbon types using DEPT/QUAT NMR pulse sequences: application to fossil-fuel-derived oils by Netzel, Daniel A

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Carbon-13 chemical shifts of the pentamethylene heterocycles by Lambert, Joseph B, Netzel, Daniel A, Sun, Hsiang-Ning, Lilianstrom, Karen K

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Effect of Different Drying Methods on Coal Structure and Reactivity Toward Liquefaction by Miknis, Francis P, Netzel, Daniel A, Turner, Thomas F, Wallace, Jefferey C, Butcher, Clint H

“…Different methods of drying coal were investigated to determine if drying can be accomplished without altering the coal structure and reactivity toward…”
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Synthesis of biological markers in fossil fuels. 2. Synthesis and carbon-13 NMR studies of substituted indans and tetralins by Adamczyk, Maciej, Watt, David S, Netzel, Daniel A

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NMR imaging studies of asphaltene precipitation in asphalts by Miknis, Francis P., Pauli, Adam T., Michon, Laurent C., Netzel, Daniel A.

“…Nuclear magnetic resonance (NMR) images were obtained on asphalts which were dissolved in toluene and titrated with iso-octane to the point of onset of…”
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NMR Determination of Carbon Aromatization during Hydrous Pyrolysis of Coals from the Mesaverde Group, Greater Green River Basin by Miknis, Francis P, Netzel, Daniel A, Surdam, Ronald C

“…Solid- and liquid-state 13C NMR measurements have been made on the residues and liquids produced during hydrous pyrolysis experiments conducted on Almond and…”
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A 13C NMR and DSC Study of the Amorphous and Crystalline Phases in Asphalts by Michon, Laurent C., Netzel, Daniel A., Turner, Thomas F., Martin, Didier, Planche, Jean-Pascal

“…The amorphous and crystalline phases in asphalt have been identified and studied using low-temperature solid-state carbon-13 CP/MAS NMR and DSC techniques. The…”
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Use of 2,2-Dimethoxypropane and 1H NMR To Distinguish and Quantify the External and Internal Sorbed Water in Coals by Netzel, Daniel A, Turner, Thomas F, Miknis, Francis P, Wallace, Jeffrey C, Butcher, Clinton H, Mitzel, Jennifer M, Hurtubise, Robert J

“…Physisorbed and chemisorbed water in coal can be effectively removed by the use of 2,2-dimethoxypropane (DMP) which reacts with the water to form methanol and…”
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NMR and GC/MS investigation of the saturate fractions from the Cerro Negro heavy petroleum crude by Netzel, Daniel A, Guffey, Frank D

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Rate of intermolecular association of Asphalt Ridge tar sand bitumen after thermal dissociation by Netzel, Daniel A, Coover, Peggy T

“…It is known that reversible thermal cycling implies that intermolecular interactions of the types dipole-dipole or dipole-induced dipole, rather than a…”
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Effect of catalyst acidity on the hydrogen-donor content of a hydrotreated coal liquid by McCormick, Robert L, Haynes, Henry W, Netzel, Daniel A

“…Nine catalysts were used to hydrotreat a coal-derived distillate in a fixed bed reactor. These catalysts were prepared from a variety of different support…”
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Carbon-13 spin-lattice relaxation times of the pentamethylene heterocycles by Lambert, Joseph B, Netzel, Daniel A

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A 13 C NMR and DSC Study of the Amorphous and Crystalline Phases in Asphalts by Michon, Laurent C., Netzel, Daniel A., Turner, Thomas F., Martin, Didier, Planche, Jean-Pascal

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CARBON-13 MOLECULAR STRUCTURE PARAMETERS OF RTFOT AGED ASPHALTS: THREE PROPOSED MECHANISMS FOR AROMATIZATION by Michon, Laurent, Netzel, Daniel A., Hanquet, Bernard, Martin, Didier, Planche, Jean-Pascal

“…The determination of average molecular structural parameters of asphalts represents an important step in describing their skeleton. Using a new method based…”
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Use of 2,2-Dimethoxypropane and 1 H NMR To Distinguish and Quantify the External and Internal Sorbed Water in Coals by Netzel, Daniel A., Turner, Thomas F., Miknis, Francis P., Wallace, Jeffrey C., Butcher, Clinton H., Mitzel, Jennifer M., Hurtubise, Robert J.

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Carbon-13 solid-state n.m.r. investigation of coke deposits on spent catalysts used in coal liquefaction by Netzel, Daniel A., Miknis, Francis P., Mitzel, Jennifer M., Zhang, Tiejun, Jacobs, Paul D., Haynes, Henry W.

“…Catalysts of the CoMo type were prepared on four different surface-modified alumina supports: (1) TiO 2-coated by impregnation, (2) ZrO 2-coated by…”
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13C nmr assignments of selected octahydroindolizines by Sonnet, Philip E., Netzel, Daniel A., Mendoza, Robert

“…Several octahydroindolizines including the four geometrical isomers of 3‐butyl‐5‐methyloctahydroindolizine, which is an attractant of Pharaoh's and [Monomorium…”
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13 C nmr assignments of selected octahydroindolizines by Sonnet, Philip E., Netzel, Daniel A., Mendoza, Robert

“…Several octahydroindolizines including the four geometrical isomers of 3‐butyl‐5‐methyloctahydroindolizine, which is an attractant of Pharaoh's and […”
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