scholarly journals The effect of oxidant species on direct, non-syngas conversion of methane to methanol over an FePO4 catalyst material

RSC Advances ◽  
2019 ◽  
Vol 9 (53) ◽  
pp. 30989-31003 ◽  
Author(s):  
Venkata D. B. C. Dasireddy ◽  
Darko Hanzel ◽  
Krish Bharuth-Ram ◽  
Blaž Likozar
Keyword(s):  
Phase Transformation ◽  
Selective Oxidation ◽  
Syngas Conversion ◽  
Oxidation Of Methane ◽  
Conversion Of Methane

The effect of the phase transformation of a FePO4 catalyst material from the tridymite-like (tdm) FePO4 to the α-domain (α-Fe3(P2O7)2) during the direct selective oxidation of methane to methanol was studied using oxidant species O2, H2O and N2O.

Zeolite-supported rhodium sub-nano cluster catalyst for low-temperature selective oxidation of methane to syngas

2017 ◽  
Vol 7 (24) ◽  
pp. 6132-6139 ◽  
Author(s):  
Yuhui Hou ◽  
Sho Ogasawara ◽  
Atsushi Fukuoka ◽  
Hirokazu Kobayashi
Keyword(s):  
Low Temperature ◽  
Selective Oxidation ◽  
Oxidation Of Methane ◽  
Conversion Of Methane ◽  
Nano Cluster

Rh sub-nano clusters supported on zeolite are remarkably more active, selective, and durable than Rh nanoparticles for the conversion of methane to syngas at low temperature.

scholarly journals Selective Oxidation of Methane to Methanol on Dispersed Copper on Alumina from Readily Available Copper(II) Formate

2021 ◽  
Author(s):  
Jordan Meyet ◽  
Sander van Bavel ◽  
Andrew Horton ◽  
Jeroen van Bokhoven ◽  
Christophe Coperet
Keyword(s):  
Natural Gas ◽  
Selective Oxidation ◽  
Low Cost ◽  
Direct Conversion ◽  
Oxidation Of Methane ◽  
Conversion Of Methane

The direct conversion of methane to methanol attracts increasing interest due to the availability of low-cost methane from natural gas. Significant steps in that direction have already been achieved, using...

Noble-metal-free dye-sensitized selective oxidation of methane to methanol with green light (550 nm)

Nano Research ◽  
2021 ◽  
Author(s):  
Xingyang Wu ◽  
Yi Zeng ◽  
Hangchen Liu ◽  
Jiaqing Zhao ◽  
Tierui Zhang ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Noble Metal ◽  
Green Light ◽  
Metal Free ◽  
Dye Sensitized ◽  
Oxidation Of Methane

scholarly journals Selective oxidation of methane to ethane and ethylene over various oxide catalysts

1987 ◽  
Vol 1 (1-2) ◽  
pp. 133-145 ◽  
Author(s):  
J.A. Roos ◽  
A.G. Bakker ◽  
H. Bosch ◽  
J.G. van Ommen ◽  
J.R.H. Ross
Keyword(s):  
Selective Oxidation ◽  
Oxide Catalysts ◽  
Oxidation Of Methane

Pyrolysis of Methane to Higher Hydrocarbons: A Thermodynamic Study

1989 ◽  
Vol 42 (10) ◽  
pp. 1655 ◽  
Author(s):  
FP Larkins ◽  
AZ Khan
Keyword(s):  
Gas Phase ◽  
Pressure Range ◽  
Solid Carbon ◽  
Free Energies ◽  
Oxidation Of Methane ◽  
Conversion Of Methane ◽  
Equilibrium Conversion ◽  
Benzene Toluene ◽  
Higher Hydrocarbons ◽  
The Individual

Some basic thermodynamic parameters such as Gibbs free energies, enthalpies of reactions and equilibrium compositions of products from the pyrolysis and partial oxidation of methane to higher hydrocarbons in the gas phase have been determined within a consistent framework for the temperature range 800-1500 K and the pressure range 0.1-3 MPa , by using the CSIRO-SGTE THERMODATA system. It has been established that the pyrolysis of methane to higher hydrocarbons, e.g. acetylene, ethylene, ethane, prop-1-ene, propane, benzene, toluene, naphthalene, 1-methylnaphthalene and 2-methylnaphthalene, considered as separate reactions, is a highly endothermic reaction with the Gibbs free energies for the individual reactions being positive until 1300 K. The aromatics are thermodynamically most favoured with the equilibrium yields increasing with temperature. Addition of O2 lowers the heats of synthesis and the free energies for methane conversion but no enhancement in the equilibrium yields of hydrocarbons is observed. When solid carbon is allowed, it is the dominant product in all cases with the equilibrium yields for all hydrocarbons becoming negligible. Increasing the pressure at a particular temperature has more effect on the lowering of the equilibrium conversion of methane than on the suppression of solid carbon. Such data are valuable for understanding the conversion limits for methane into higher hydrocarbons.

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