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Ailing Qiao

Oxidative dehydrogenation of ethane to ethylene over supported vanadia and Ni-Nb-M-O mixed metal oxide catalysts

Universität Rostock, 2015

Abstract: V2O5/Nb2O5, V2O5/Al-x and V2O5/TiO2 and promoted Ni-Nb-M-O (M=Cr, Mo, W) catalysts were prepared by impregnation and evaporation methods, respectively. All these catalysts were characterized by several physico-chemical techniques. The catalytic performance of these solids was evaluated towards the ODHE in a fixed bed quartz reactor at 500-600 °C for supported vanadia samples and 300-450 °C for Ni-Nb-M-O catalysts. Special emphasis is devoted to gain deeper insights on the physico-chemical characteristics of the catalysts in relation to their activity/selectivity properties.

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