Direct Oxidation of Methane to a Methanol Derivative Using Molecular Oxygen

2011 ◽  
Vol 50 (10) ◽  
pp. 6513-6516 ◽  
Author(s):  
Jiongliang Yuan ◽  
Lanlan Wang ◽  
Yan Wang
Keyword(s):  
Molecular Oxygen ◽  
Direct Oxidation ◽  
Oxidation Of Methane

Catalytic Oxidation of Methane to Methanol over Cu-CHA with Molecular Oxygen

2021 ◽  
Author(s):  
Airi Hirayama ◽  
Yuka Tsuchimura ◽  
Hiroshi Yoshida ◽  
Masato Machida ◽  
Shun Nishimura ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Molecular Oxygen ◽  
High Stability ◽  
High Reactivity ◽  
Direct Oxidation ◽  
Oxidation Of Methane

Direct oxidation of CH4 to CH3OH using O2 is challenging because of the high stability of CH4 and the relatively high reactivity of CH3OH. Here, Cu-CHA zeolites are tested for...

Dioxygen splitting at room temperature over distant binuclear transition metal centers in zeolites for direct oxidation of methane to methanol

2021 ◽  
Author(s):  
Kinga Mlekodaj ◽  
Mariia Lemishka ◽  
Stepan Sklenak ◽  
Jiri Dedecek ◽  
Edyta Tabor
Keyword(s):  
Transition Metal ◽  
Room Temperature ◽  
Direct Oxidation ◽  
Metal Centers ◽  
Oxidation Of Methane ◽  
First Time

Here we demonstrate for the first time the splitting of dioxygen at RT over distant binuclear transition metal (M = Ni, Mn, and Co) centers stabilized in ferrierite zeolite. Cleaved...

The oxidation of Carbon with Atomic Oxygen

1959 ◽  
Vol 12 (2) ◽  
pp. 114 ◽  
Author(s):  
JD Blackwood ◽  
FK McTaggart
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Radio Frequency ◽  
Molecular Oxygen ◽  
Atomic Oxygen ◽  
Graphitic Carbon ◽  
Carbon Surface ◽  
Direct Oxidation ◽  
Radio Frequency Field ◽  
Frequency Field

Atomic oxygen, produced by dissociation of molecular oxygen in a radio frequency field, will react with amorphous or graphitic carbon at room temperatures and both carbon monoxide and carbon dioxide appear in the product gases. Carbon monoxide appears to be the primary product of oxidation of carbon, the carbon dioxide being produced by direct combination of carbon monoxide with oxygen which takes place mainly at the carbon surface. Atomic oxygen will also react with carbon dioxide to produce carbon monoxide and molecular oxygen but the quantity of carbon monoxide produced by this reaction is small compared to that produced by direct oxidation of the carbon.

scholarly journals Perspective tendencies in development of small scale processing of gas resources

2017 ◽  
Vol 89 (8) ◽  
pp. 1033-1047 ◽  
Author(s):  
Vladimir S. Arutyunov ◽  
Valery I. Savchenko ◽  
Igor V. Sedov ◽  
Alexey V. Nikitin ◽  
Ilya G. Fokin ◽  
...  
Keyword(s):  
Value Added ◽  
Small Scale ◽  
Oxidative Conversion ◽  
Direct Oxidation ◽  
Hydrocarbon Gases ◽  
Associated Petroleum Gas ◽  
Syngas Production ◽  
Oxidation Of Methane ◽  
Alternative Routes

AbstractThis paper analyses alternative routes for production of chemicals from different hydrocarbon gases by their direct, without syngas production, oxidative conversion to oxygenates or ethylene. Main of these routes are direct oxidation of methane to methanol (DMTM) and selective oxy-cracking of heavier natural or associated petroleum gas components which can be used for production of high value-added petrochemicals (in combination with carbonylation processes) and fuel gases, useful for gas piston engines. The advantages and practical capabilities of such technologies are discussed.

Syngas formation by direct oxidation of methane

2000 ◽  
Vol 61 (1-4) ◽  
pp. 55-64 ◽  
Author(s):  
G Veser ◽  
J Frauhammer ◽  
U Friedle
Keyword(s):  
Direct Oxidation ◽  
Oxidation Of Methane

scholarly journals Atmospheric deuterium fractionation: HCHO and HCDO yields in the CH<sub>2</sub>DO+O<sub>2</sub> reaction

2007 ◽  
Vol 7 (4) ◽  
pp. 10019-10041 ◽  
Author(s):  
E. Nilsson ◽  
M. S. Johnson ◽  
F. Taketani ◽  
Y. Matsumi ◽  
M. D. Hurley ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Ftir Spectroscopy ◽  
Molecular Oxygen ◽  
Molecular Hydrogen ◽  
Branching Ratio ◽  
Hydrogen Atom Transfer ◽  
Photochemical Oxidation ◽  
Oxidation Of Methane ◽  
Methoxy Radical ◽  
Deuterium Enrichment

Abstract. The formation of formaldehyde via hydrogen atom transfer from the methoxy radical to molecular oxygen is a key step in the atmospheric photochemical oxidation of methane, and in the propagation of deuterium from methane to molecular hydrogen. We report the results of the first investigation of the branching ratio for HCHO and HCDO formation in the CH2DO+O2 reaction. Labeled methoxy radicals (CH2DO) were generated in a photochemical reactor by photolysis of CH2DONO. HCHO and HCDO concentrations were measured using FTIR spectroscopy. Significant deuterium enrichment was seen in the formaldehyde product, from which we derive a branching ratio of 88.2±1.1% for HCDO and 11.8±1.1% for HCHO. The implications of this fractionation on the propagation of deuterium in the atmosphere are discussed.

Iron phosphate nanoparticle catalyst for direct oxidation of methane into formaldehyde: effect of surface redox and acid–base properties

2021 ◽  
Author(s):  
Aoi Matsuda ◽  
Haruka Tateno ◽  
Keigo Kamata ◽  
Michikazu Hara
Keyword(s):  
Iron Phosphate ◽  
Direct Oxidation ◽  
Acid Base ◽  
Basic Properties ◽  
Oxidation Of Methane ◽  
Surface Redox ◽  
Effect Of Surface ◽  
Nanoparticle Catalyst ◽  
Base Properties

The surface redox and the weakly basic properties of FePO4 nanoparticles would contribute to the selective CH4 oxidation to HCHO and the suppression of over-oxidation, respectively.

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