Propane oxidative dehydrogenation, nature

Wachsl ° l used methanol as a probe of propane oxidative dehydrogenation as it closely mimics the activity. C-H bond activation is thought to be rate determining both for the activation of propane and for methanol. Methanol was therefore used to probe of the nature of redox, acid and base properties of the catalyst. The results indicate that the activity is quite sensitive to the metal oxide and the oxidation state. The redox activity of supported Nb, Te, V and Mo oxides and mixed metal oxides shows the following trend for decreasing reactivity ... 

Nature of Vanadium Species in Vanadium-Containing Silicalite and Their Behavior in Oxidative Dehydrogenation of Propane... 

The high surface area and structure of CMS has attracted attention for their possible exploitation as catalysts and catalyst supports. CMS have been found effective for the oxidative dehydrogenation and dehydration of a variety of substances like methanol, ethanol, 1- and 2-propanol and propanal, with activities superior to many inorganic oxide based systems. As catalysts, CMS function via a hydride or hydrogen atom abstraction mechanism, depending on the nature of the substrates, while as catalyst supports, a synergism has been demonstrated between the CMS support and the metal dopants, to yield a greater... 

With respect to the catalytic reactions, there are well-established industrial reactions (as occurs in the case of n-butane to maleic anhydride), reactions in the preindustrial stage (such as the transformation of propane to acrylonitrile), very promising reactions (such as ethane oxidative dehydrogenation to ethylene), and potential reactions whose economical viability will depend on the prices of crude and natural gas in the future (such as propane selective oxidation to acrylic acid or methane transformation). 

Back J, Yun HJ, Yun D, Choi Y, Yi J (2012) Preparation of highly dispersed chromium oxide catalysts supported on mesoporous silica for the oxidative dehydrogenation of propane using CO2 insight into the nature of catalytically active chromium sites. ACS Catal 2 1893-1903... 

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