Oxidative coupling of methane. The effect of alkali chlorides on molybdate based catalyst leading to high selectivity in C3-product formation

1993 ◽  
Vol 18 (1-2) ◽  
pp. 15-26 ◽  
Author(s):  
John Kiwi ◽  
K. Ravidranathan Thampi ◽  
N. Mouaddib ◽  
Michael Gr�tzel ◽  
Peter Albers
Keyword(s):  
Oxidative Coupling ◽  
High Selectivity ◽  
Product Formation ◽  
Oxidative Coupling Of Methane ◽  
Alkali Chlorides

High selectivity catalysts for the oxidative coupling of methane

1988 ◽  
Vol 42 (1) ◽  
pp. L1-L4 ◽  
Author(s):  
R. Kurt Ungar ◽  
Xiankuan Zhang ◽  
Richard M. Lambert
Keyword(s):  
Oxidative Coupling ◽  
High Selectivity ◽  
Oxidative Coupling Of Methane

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.

N‐type Doping Induced Electron Localization for Non‐oxidative Coupling of Methane

2021 ◽  
Author(s):  
Ziyu Chen ◽  
Shiqun Wu ◽  
Jiayu Ma ◽  
Shinya Mine ◽  
Takashi Toyao ◽  
...  
Keyword(s):  
Oxidative Coupling ◽  
Oxidative Coupling Of Methane ◽  
Electron Localization

The potential of direct steam cracker electrification and carbon capture & utilization via oxidative coupling of methane as decarbonization strategies for ethylene production

2021 ◽  
Vol 296 ◽  
pp. 117049
Author(s):  
Lucia S. Layritz ◽  
Iulia Dolganova ◽  
Matthias Finkbeiner ◽  
Gunnar Luderer ◽  
Alberto T. Penteado ◽  
...  
Keyword(s):  
Ethylene Production ◽  
Oxidative Coupling ◽  
Carbon Capture ◽  
Oxidative Coupling Of Methane ◽  
Direct Steam ◽  
Steam Cracker

scholarly journals Hybrid catalysts containing Ba, Ti, Mn, Na, and W for the low-temperature oxidative coupling of methane

2021 ◽  
pp. 120553
Author(s):  
Lien Thi Do ◽  
Jae-Wook Choi ◽  
Dong Jin Suh ◽  
Chun-Jae Yoo ◽  
Hyunjoo Lee ◽  
...  
Keyword(s):  
Low Temperature ◽  
Oxidative Coupling ◽  
Oxidative Coupling Of Methane ◽  
Hybrid Catalysts
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