Oxidative coupling of methane in the redox cyclic mode over the Ag–La2O3/SiO2 catalytic system

2010 ◽  
Vol 20 (2) ◽  
pp. 92-94 ◽  
Author(s):  
Alexander A. Greish ◽  
Lev M. Glukhov ◽  
Elena D. Finashina ◽  
Leonid M. Kustov ◽  
Jae-Suk Sung ◽  
...  
Keyword(s):  
Catalytic System ◽  
Oxidative Coupling ◽  
Oxidative Coupling Of Methane ◽  
Cyclic Mode

Feasibility study of the Mn–Na2WO4/SiO2 catalytic system for the oxidative coupling of methane in a fluidized-bed reactor

2015 ◽  
Vol 5 (2) ◽  
pp. 942-952 ◽  
Author(s):  
S. Sadjadi ◽  
S. Jašo ◽  
H. R. Godini ◽  
S. Arndt ◽  
M. Wollgarten ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Feasibility Study ◽  
Catalytic System ◽  
Oxidative Coupling ◽  
Fluidized Bed Reactor ◽  
Oxidative Coupling Of Methane

The catalytic system Mn–Na2WO4/SiO2, was studied in a miniplant fluidized-bed reactor for oxidative coupling of methane.

Peculiarities of oxidative coupling of methane in redox cyclic mode over Ag–La2O3/SiO2 catalysts

2010 ◽  
Vol 380 (1-2) ◽  
pp. 28-32 ◽  
Author(s):  
Jae Suk Sung ◽  
Ko Yeon Choo ◽  
Tae Hwan Kim ◽  
Alexander Greish ◽  
Lev Glukhov ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Oxidative Coupling Of Methane ◽  
Cyclic Mode

Oxidative coupling of methane in the redox cyclic mode over the catalysts on the basis of CeO2 and La2O3

2010 ◽  
Vol 20 (1) ◽  
pp. 28-30 ◽  
Author(s):  
Alexander A. Greish ◽  
Lev M. Glukhov ◽  
Elena D. Finashina ◽  
Leonid M. Kustov ◽  
Jae-Suk Sung ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Oxidative Coupling Of Methane ◽  
Cyclic Mode

scholarly journals Identification of the structure of the Bi promoted Pt non-oxidative coupling of methane catalyst: a nanoscale Pt3Bi intermetallic alloy

2019 ◽  
Vol 9 (6) ◽  
pp. 1349-1356 ◽  
Author(s):  
Johnny Zhu Chen ◽  
Zhenwei Wu ◽  
Xiaoben Zhang ◽  
Slgi Choi ◽  
Yang Xiao ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Oxidative Coupling Of Methane ◽  
Intermetallic Alloy ◽  
Alloy Catalyst

Identification of a Pt3Bi nanoscale, surface intermetallic alloy catalyst for non-oxidative coupling of methane (NOCM).

Catalytic performance of Na-Mn2O3-based catalysts towards oxidative coupling of methane

2021 ◽  
Author(s):  
P. Saychu ◽  
M. Thanasiriruk ◽  
C. Khajonvittayakul ◽  
R. Viratikul ◽  
V. Tongnan ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Catalytic Performance ◽  
Oxidative Coupling Of Methane

scholarly journals Nanosheet-Like Ho2O3 and Sr-Ho2O3 Catalysts for Oxidative Coupling of Methane

Catalysts ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 388
Author(s):  
Yuqiao Fan ◽  
Changxi Miao ◽  
Yinghong Yue ◽  
Weiming Hua ◽  
Zi Gao
Keyword(s):  
Oxidative Coupling ◽  
Temperature Programmed Desorption ◽  
Oxidative Coupling Of Methane ◽  
Molar Ratio ◽  
Impregnation Method ◽  
Oxygen Species ◽  
N2 Adsorption ◽  
Basic Sites ◽  
Chemisorbed Oxygen ◽  
Temperature Programmed

In this work, Ho2O3 nanosheets were synthesized by a hydrothermal method. A series of Sr-modified Ho2O3 nanosheets (Sr-Ho2O3-NS) with a Sr/Ho molar ratio between 0.02 and 0.06 were prepared via an impregnation method. These catalysts were characterized by several techniques such as XRD, N2 adsorption, SEM, TEM, XPS, O2-TPD (temperature-programmed desorption), and CO2-TPD, and they were studied with respect to their performances in the oxidative coupling of methane (OCM). In contrast to Ho2O3 nanoparticles, Ho2O3 nanosheets display greater CH4 conversion and C2-C3 selectivity, which could be related to the preferentially exposed (222) facet on the surface of the latter catalyst. The incorporation of small amounts of Sr into Ho2O3 nanosheets leads to a higher ratio of (O− + O2−)/O2− as well as an enhanced amount of chemisorbed oxygen species and moderate basic sites, which in turn improves the OCM performance. The optimal catalytic behavior is achievable on the 0.04Sr-Ho2O3-NS catalyst with a Sr/Ho molar ratio of 0.04, which gives a 24.0% conversion of CH4 with 56.7% selectivity to C2-C3 at 650 °C. The C2-C3 yield is well correlated with the amount of moderate basic sites present on the catalysts.

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