Oxidative dehydrogenation of ethane over a Mo–V–Nb–Te–O mixed-oxide catalyst in a cyclic mode

Oxidative dehydrogenation of ethane to ethylene was investigated over Chromia and Cr-V mixed oxide catalysts synthesized following a complexation procedure. With an O2/C2H6 feed ratio of 0.17, Chromia exhibited a total conversion value of about 0.20 at 447°C (at a space time of 0.24 s.g/mL) with an ethylene selectivity of 0.82. Chromia catalyst was more active than Cr-V mixed oxide at temperatures as low as 200°C. Pulse-response experiments carried out with ethane pulses injected into O2-He indicated the presence of at least two different sites for the formation of CO2 and H2O over Chromia catalyst. In the dynamic experiments carried out with the Cr-V mixed oxide catalyst and by injecting O2 pulses into a gas stream containing a mixture of C2H6 and He, formation of CO rather than C2H4 was favored. Results of the dynamic runs carried out without gas phase oxygen strengthened the conclusion of lattice oxygen participation in the selective oxidation of ethane reaction through a redox mechanism.

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Revisiting Oxidative Dehydrogenation of Ethane by W Doping into MoVMn Mixed Oxides at Low Temperature

Advances in Physical Chemistry ◽

10.1155/2015/102583 ◽

2015 ◽

Vol 2015 ◽

pp. 1-9

Author(s):

Mohammed H. Al-Hazmi ◽

Taiwo Odedairo ◽

Adel S. Al-Dossari ◽

YongMan Choi

Keyword(s):

Oxidative Dehydrogenation ◽

Oxide Catalyst ◽

Mixed Oxides ◽

Catalytic Performance ◽

X Ray Diffraction ◽

X Ray ◽

Oxidative Dehydrogenation Of Ethane ◽

Mixed Oxide Catalyst ◽

Ethylene Selectivity ◽

Temperature Programmed

The catalytic performance of MoVMnW mixed oxides was investigated in the oxidative dehydrogenation of ethane at three different reaction temperatures (235, 255, and 275°C) using oxygen as an oxidant. The catalysts were characterized by using X-ray diffraction, temperature-programmed reduction, and scanning electron microscopy. The MoVMnW mixed oxide catalyst showed the 70–90% of ethylene selectivity at the reaction temperatures. However, a significant decrease in the selectivity of ethylene was observed by increasing the reaction temperature from 235°C to 275°C.

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Highly selective production of styrene by non-oxidative dehydrogenation of ethylbenzene over molybdenum-zirconium mixed oxide catalyst in fixed bed reactor: Activity, stability and kinetics

Catalysis Communications ◽

10.1016/j.catcom.2021.106307 ◽

2021 ◽

pp. 106307

Author(s):

Sonam V. Sancheti ◽

Ganapati D. Yadav

Keyword(s):

Oxidative Dehydrogenation ◽

Mixed Oxide ◽

Oxide Catalyst ◽

Fixed Bed ◽

Fixed Bed Reactor ◽

Mixed Oxide Catalyst ◽

Dehydrogenation Of Ethylbenzene ◽

Oxidative Dehydrogenation Of Ethylbenzene

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Mechanistic aspects of the oxidative dehydrogenation of propane over an alumina-supported VCrMnWOx mixed oxide catalyst

Catalysis Today ◽

10.1016/j.cattod.2004.09.024 ◽

2005 ◽

Vol 99 (1-2) ◽

pp. 59-67 ◽

Cited By ~ 19

Author(s):

Evgueni V. Kondratenko ◽

Maymol Cherian ◽

Manfred Baerns

Keyword(s):

Oxidative Dehydrogenation ◽

Mixed Oxide ◽

Oxide Catalyst ◽

Oxidative Dehydrogenation Of Propane ◽

Mixed Oxide Catalyst

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A high-throughput reactor system for optimization of Mo–V–Nb mixed oxide catalyst composition in ethane ODH

Catalysis Science & Technology ◽

10.1039/c5cy00488h ◽

2015 ◽

Vol 5 (8) ◽

pp. 4164-4173 ◽

Cited By ~ 17

Author(s):

Haibo Zhu ◽

Paco Laveille ◽

Devon C. Rosenfeld ◽

Mohamed Nejib Hedhili ◽

Jean-Marie Basset

Keyword(s):

Oxidative Dehydrogenation ◽

High Throughput ◽

Mixed Oxide ◽

Oxide Catalyst ◽

Dehydrogenation Reaction ◽

Mixed Oxide Catalysts ◽

Catalyst Composition ◽

P 75 ◽

Mixed Oxide Catalyst ◽

Ethane Oxidative Dehydrogenation

75 Mo–V–Nb mixed oxide catalysts with a broad range of compositions were tested using a high-throughput reactor in order to optimize the composition for the ethane oxidative dehydrogenation reaction.

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