scholarly journals Lanthanum modified Fe-ZSM-5 zeolites for selective methane oxidation with hydrogen peroxide

2021 ◽  
Author(s):  
Songmei Sun ◽  
Alexandra Barnes ◽  
Xiaoxiao Gong ◽  
Richard Lewis ◽  
Nicholas F. Dummer ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Methane Oxidation ◽  
Partial Oxidation ◽  
Partial Oxidation Of Methane ◽  
Ambient Conditions ◽  
Oxidation Of Methane

Selective partial oxidation of methane to methanol under ambient conditions is a great challenge in chemistry. Iron modified ZSM-5 catalysts are shown to be effective for this reaction using H2O2...

Dual Role of Perovskite Hollow Fiber Membrane in the Methane Oxidation Reactions

2016 ◽  
pp. 385-430
Author(s):  
Serbia M. Rodulfo-Baechler
Keyword(s):  
Carbon Dioxide ◽  
Methane Oxidation ◽  
Partial Oxidation ◽  
Hollow Fiber Membrane ◽  
Hollow Fibre ◽  
Dual Role ◽  
Partial Oxidation Of Methane ◽  
Oxygen Flux ◽  
Oxidation Reactions ◽  
Oxidation Of Methane

The Mixed Ionic and Electronic Conducting (MIEC) membrane reactors are of interest because they have the potential to produce high purity oxygen from air at lower costs and provide a continuous oxygen supply to reactions or/and industrial processes. The study of the dual role oxygen flux and catalytic performance of the unmodified and Ni-coated La0.6Sr0.4Co0.2Fe0.8O3-d hollow fibre membranes (LSCF6428 HFM) in the methane oxidation reactions (i.e., partial oxidation of methane and methane combustion) by using air on lumen side and methane on shell side are shown in this chapter. The LSCF6428 HFM participates not only in the oxygen flux but also in the methane conversion to C2. A Ni-coated LSCF6428 HFM under lean O2/CH4 gradient (i.e., 0.5) showed the production of syngas, carbon dioxide and C2 products in agreement with the thermodynamic calculation. At rich O2/CH4 gradient (i.e., 1.0), the formation of carbon dioxide was facilitated. The main catalytic pathway at lean O2/CH4 gradient and H2 reduction treatment was partial oxidation of methane to C2 and syngas.

Catalytic cycle of the partial oxidation of methane to methanol over Cu-ZSM-5 revealed using DFT calculations

2021 ◽  
Vol 23 (8) ◽  
pp. 4963-4974
Author(s):  
Xi Yu ◽  
Liangshu Zhong ◽  
Shenggang Li
Keyword(s):  
Dft Calculations ◽  
Methane Oxidation ◽  
Partial Oxidation ◽  
Active Sites ◽  
Partial Oxidation Of Methane ◽  
Catalytic Cycle ◽  
Oxidation Of Methane

Methane oxidation to methanol over Cu-ZSM-5 is found using DFT calculations to involve both [Cu2(O2)]2+ and [Cu2(μ-O)]2+ active sites.

Partial oxidation of methane to formaldehyde over copper–molybdenum complex oxide catalysts

2021 ◽  
Author(s):  
Taiki Akiyama ◽  
Ryota Sei ◽  
Sakae Takenaka
Keyword(s):  
Methane Oxidation ◽  
Partial Oxidation ◽  
Complex Oxide ◽  
Oxide Catalysts ◽  
Partial Oxidation Of Methane ◽  
Molybdenum Complex ◽  
Oxidation Of Methane

The Cu3Mo2O9 catalyst forms formaldehyde selectively in the methane oxidation with O2 in the presence of water.

Partial oxidation of methane over bimetallic nickel–lanthanide oxides

2010 ◽  
Vol 489 (1) ◽  
pp. 316-323 ◽  
Author(s):  
Ana C. Ferreira ◽  
A.M. Ferraria ◽  
A.M. Botelho do Rego ◽  
António P. Gonçalves ◽  
M. Rosário Correia ◽  
...  
Keyword(s):  
Partial Oxidation ◽  
Partial Oxidation Of Methane ◽  
Lanthanide Oxides ◽  
Oxidation Of Methane
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