Enhanced selectivity of syngas in partial oxidation of methane: A new route for promising Ni‐alumina catalysts derived from Ni/ γ‐AlOOH with modified Ni dispersion

2020 ◽  
Vol 44 (14) ◽  
pp. 12081-12099
Author(s):  
Abbas Khaleel ◽  
Sheikh Jobe ◽  
Mo'ath Ahmed ◽  
Sulaiman Al‐Zuhair ◽  
Saeed Tariq
Keyword(s):  
Partial Oxidation ◽  
Partial Oxidation Of Methane ◽  
Oxidation Of Methane ◽  
Enhanced Selectivity ◽  
Alumina Catalysts

Partial Oxidation of Methane to Carbon Oxides and Hydrogen on Hydroxyapatite:  Enhanced Selectivity to Carbon Monoxide with Tetrachloromethane

1996 ◽  
Vol 10 (3) ◽  
pp. 828-830 ◽  
Author(s):  
Shigeru Sugiyama ◽  
Toshimitsu Minami ◽  
Hiromu Hayashi ◽  
Michie Tanaka ◽  
Naoya Shigemoto ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Partial Oxidation ◽  
Partial Oxidation Of Methane ◽  
Carbon Oxides ◽  
Oxidation Of Methane ◽  
Enhanced Selectivity

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

scholarly journals Oscillatory Behaviour of Ni Supported on ZrO2 in the Catalytic Partial Oxidation of Methane as Determined by Activation Procedure

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2495
Author(s):  
Daniela Pietrogiacomi ◽  
Maria Cristina Campa ◽  
Ida Pettiti ◽  
Simonetta Tuti ◽  
Giulia Luccisano ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Partial Oxidation ◽  
Active Sites ◽  
Direct Reduction ◽  
Partial Oxidation Of Methane ◽  
Catalytic Partial Oxidation ◽  
Oxidation Of Methane ◽  
Short Contact Time ◽  
Oxidation Reduction ◽  
Ni Species

Ni/ZrO2 catalysts, active and selective for the catalytic partial oxidation of methane to syngas (CH4-CPO), were prepared by the dry impregnation of zirconium oxyhydroxide (Zhy) or monoclinic ZrO2 (Zm), calcination at 1173 K and activation by different procedures: oxidation-reduction (ox-red) or direct reduction (red). The characterization included XRD, FESEM, in situ FTIR and Raman spectroscopies, TPR, and specific surface area measurements. Catalytic activity experiments were carried out in a flow apparatus with a mixture of CH4:O2 = 2:1 in a short contact time. Compared to Zm, Zhy favoured the formation of smaller NiO particles, implying a higher number of Ni sites strongly interacting with the support. In all the activated Ni/ZrO2 catalysts, the Ni–ZrO2 interaction was strong enough to limit Ni aggregation during the catalytic runs. The catalytic activity depended on the activation procedures; the ox-red treatment yielded very active and stable catalysts, whereas the red treatment yielded catalysts with oscillating activity, ascribed to the formation of Niδ+ carbide-like species. The results suggested that Ni dispersion was not the main factor affecting the activity, and that active sites for CH4-CPO could be Ni species at the boundary of the metal particles in a specific configuration and nuclearity.

Partial Oxidation of Methane to Syngas via Formate Intermediate Found for a Ruthenium–Rhenium Bimetallic Catalyst

ACS Catalysis ◽  
2021 ◽  
pp. 3782-3789
Author(s):  
Lingcong Li ◽  
Nazmul H. MD Dostagir ◽  
Abhijit Shrotri ◽  
Atsushi Fukuoka ◽  
Hirokazu Kobayashi
Keyword(s):  
Partial Oxidation ◽  
Bimetallic Catalyst ◽  
Partial Oxidation Of Methane ◽  
Oxidation Of Methane ◽  
Formate Intermediate
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