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Showing 1 to 20 of 84 for “"partial oxidation"”.
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Methane partial oxidation over phthalocyanine catalyst
The partial oxidation reaction of methane over a zeolite-supported ruthenium phthalocyanine catalyst is studied in a packed bed reactor. The investigation of such reaction is desirable because partial oxidation of methane yields a synthesis gas that can be upgraded to liquid chemicals and fuels. …
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Microfabricated reactors for partial oxidation reactions
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1998.
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The heterogeneous partial oxidation of light alkanes
(cont.) With this approach, an upper bound on the yield for OCM was computed. Results showed that even with optimal surface chemistry, strict limits existed on the attainable yield. Surface energetics necessary for superior OCM performance were identified and the origins of these requirements …
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Partial Oxidation of Hydrocarbons Over Ceria Zirconia Catalysts
… research along several avenues pertaining to oxidation reactions. First, the major conclusions are summarized from a perspective describing active oxygen species on catalyst surfaces. Some oxygen species are more selective than others and if these species were better understood, a catalyst …
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Partial oxidation of methane over halogen modified palladium catalyst.
The vapor phase air oxidation of methane to formaldehyde was investigated in an isothermal integral flow reactor at atmospheric pressure in a temperature range of 390° to 510°C. The catalyst, 0.5% palladium supported on alumina, was modified by a constant and continuous supply of small …
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Partial oxidation of ethanol over vanadium iron antimonate catalysts
VSbO₄ and FeSbO₄ are proven catalysts for the amm(oxidation) of propane/propylene. These catalysts systems have been shown to possess over-oxidation limiting characteristics. Ethanol oxidation is carried out in two-staged processes industrially, mainly because of the challenges presented by …
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An Experimental and Computational Investigation of Methane /Air Partial Oxidation
Tier III was a computational modeling effort in which two kinetic mechanisms were used to link experimental observables to kinetic and system contributions. A model using a plug flow reactor with variable heat transfer along the length was constructed and analyzed using CanteraRTM. Modeling …
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Transient analysis of propene partial oxidation over iron antimony oxide
… purpose of this work was to investigate propene partial oxidation at steady state and transient mode over an iron antimonate catalyst of Sb/Fe=1.5: I and to formulate a transient kinetic simulation for the reaction.
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Partial oxidation of α-olefins over iron antimony oxide catalysts
… to be an active and selective catalyst for the partial oxidation of propene to acrolein and the oxidative dehydrogenation of 1-butene to 1,3- butadiene. It has become the preferred catalyst for the industrial acrolein formation from propene. The main purpose of this work was to investigate the …
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Reaction mechanisms for catalytic partial oxidation systems : application to ethylene epoxidation
… understand the complex chemistry for catalytic partial oxidation systems. Given that there is selected experimental knowledge on surface species and a large number of unknown thermochemical, rate parameters, the challenge is to integrate the knowledge to identify all the important species and …
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Catalytic Conversion of Cellulose to Carboxylic Acids through Aqueous Phase Partial Oxidation
… to utilize high temperature water, and a partially oxidative atmosphere, to hydrolyse cellulose to oligosaccharides, which will react on the surface of the catalyst through oxidation reactions to carboxylic acids with high selectivity. Noble metal loaded metal oxides and metal oxides were …
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Kinetic Study of Catalytic Partial Oxidation of Synthetic Diesel for Hydrogen Production
… is to study the kinetics of the catalytic partial oxidation (CPOX) of synthetic diesel (SD) for hydrogen production. The kinetic experiments were done in a packed bed tubular reactor (PBTR) over a 5wt.%Ni/Ce[subscript 0.5Z]r[subscript 0.33]Ca0.085Y[subscript 0.085] (5N/CZCaY) catalyst …
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The partial oxidation of propene to acrolein over single-crystal Cu₂O
The partial oxidation of propene (CH₂=CHCH3) to acrolein (CH₂=CHCHO) has been studied over Cu₂0(100) and (111) single crystal surfaces. Propene adsorption under ultrahigh vacuum conditions yields no significant oxidation products, but the propene desorption temperatures are sensitive to the …
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Catalytic membrane reactors for synthesis gas production from natural gas via partial oxidation.
… consumption of oxygen and methane in the partial oxidation. In the present investigation, an enhanced catalyst-dispersed ceramic membrane for low-cost synthesis gas production suitable for gas-to-liquids has been prepared, characterised and tested in a self-designed membrane reactor. The …
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A characterization and study of barium promoted silver catalysts for the partial oxidation of ethylene
<p>"The catalyzed partial oxidation of ethylene using oxygen was studied. Six silver-based catalysts were prepared, and the effects of BaCO<sub>3</sub> and BaO<sub>2</sub> as moderators were investigated. Silver components of the catalysts were either AgO or Ag<sub>2</sub>CO<sub>3</sub>.</p> <p>The …
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Nitrogen doped carbon catalyst for the oxygen reduction reaction to be used for methane partial oxidation
… the use of hydrogen peroxide (H2O2) in the partial oxidation of methane to liquid chemicals at ambient conditions has been made. This process, used an iron based zeolite catalyst, and moderate concentrations of peroxide. Although peroxide is produced inexpensively industrially, there are …
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