Journal ArticleDOI
Selective oxidation of light alkanes over hydrothermally synthesized Mo-V-M-O (M=Al, Ga, Bi, Sb, and Te) oxide catalysts
Wataru Ueda,Kenzo Oshihara +1 more
TLDR
In this article, selective oxidations of ethane to ethene and acetic acid and of propane to acrylic acid were carried out over hydrothermally synthesized Mo-V-M-O (M=Al, Ga, Bi, Sb and Te) complex metal oxide catalysts.Abstract:
Selective oxidations of ethane to ethene and acetic acid and of propane to acrylic acid were carried out over hydrothermally synthesized Mo-V-M-O (M=Al, Ga, Bi, Sb, and Te) complex metal oxide catalysts. All the synthesized solids were rod-shaped crystallites and gave a common XRD peak corresponding to 4.0 A d -spacing. From the different XRD patterns at low angle region below 10° and from the different shape of the cross-section of the rod crystal obtained by SEM, the solids were classified into two groups: Mo-V-M-O (M=Al, possibly Ga and Bi) and Mo-V-M-O (M=Sb, and Te). The former catalyst was moderately active for the ethane oxidation to ethene and to acetic acid. On the other hand the latter was found to be extremely active for the oxidative dehydrogenation. The Mo-V-M-O (M=Sb, and Te) catalysts were also active for the propane oxidation to acrylic acid. It was found that the grinding of the catalysts after heat-treatment at 600°C in N 2 increased the conversions of propane and enhanced the selectivity to acrylic acid. Structural arrangement of the catalytic functional components on the surface of the cross-section of the rod-shaped catalysts seems to be important for the oxidation activity and selectivity.read more
Citations
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Journal ArticleDOI
Oxidative dehydrogenation of ethane and propane : How far from commercial implementation?
TL;DR: In this article, a review examines the recent literature on the oxidative dehydrogenation (ODH) of ethane and propane, which aims for the synthesis of the corresponding alkenes.
Journal ArticleDOI
Sustainability in Catalytic Oxidation: An Alternative Approach or a Structural Evolution?
TL;DR: This Review documents some examples of recent innovations in the field of catalytic selective oxidation from an industrial point of view, highlighting innovative aspects for a better sustainability of the chemical industry.
Journal ArticleDOI
Unconventional Chemistry for Unconventional Natural Gas
TL;DR: Cost-effective conversion of natural gas into higher-value chemical intermediates and liquid products could reduce the need for oil and help lower its shipping costs, which are higher than those of petroleum or coal on an energy-delivered basis.
Journal ArticleDOI
Oxidative Dehydrogenation of Ethane: Common Principles and Mechanistic Aspects
TL;DR: In this paper, the current state of the ODH of light olefins is compared with other routes for light-olefin production, with a focus on the catalyst and reactor system variants.
Journal ArticleDOI
Selective oxidative dehydrogenation of ethane on MoVTeNbO mixed metal oxide catalysts
P. Botella,E. García-González,Ana Dejoz,J.M. López Nieto,M.I. Vázquez,José M. González-Calbet +5 more
TL;DR: In this article, the authors show that MoVTeNbO catalysts are active and highly selective in the ODH of ethane, especially those with a MoVTeNb molar ratio of 1.15-0.17 and heat-treated at 600-650°C.
References
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Journal ArticleDOI
The oxidative dehydrogenation of ethane over catalysts containing mixed oxides of molybdenum and vanadium
TL;DR: Mixed oxide catalysts, containing molybdenum and vanadium (MoV) together with another transition metal oxide (Ti, Cr, Mn, Fe, Co, Ni, Nb, Ta, or Ce), are active as low as 200 °C for the oxydehydrogenation of ethane to ethylene.
Journal ArticleDOI
Ammoxidation of Propane over Catalysts Comprising Mixed Oxides of Mo and V
TL;DR: In this article, the catalytic effects of molybdenum oxides and vanadium oxides in the conversion of propane are described and the temperature dependence is discussed.
Book ChapterDOI
Ammoxidation of propane over Mo-V-Nb-Te mixed oxide catalysts
TL;DR: Mo-V-Nb-Te mixed metal oxides are highly active and selective for the ammoxidation of propane to acrylonitrile as discussed by the authors, and the efficiency of the catalyst is higher than that of V-Sb and Bi-Mo mixed metal oxide catalysts.
Journal ArticleDOI
Anderson-type heteropolyanions of molybdenum(VI) and tungsten(VI)
TL;DR: In this article, the Anderson-type molybdopolyanions containing divalent metal ions (Zn, Cu, Co or Mn) as a heteroatom has been reinvestigated.
Journal ArticleDOI
Oxidation of propane to acrylic acid on V2O5&P2O5-based catalysts
TL;DR: The best results for the formation of acrylic acid were obtained with this Te/P/V atomic ratio; 0.10−0.15/1 oxide catalysts.