The reactivity of vanadyl pyrophosphate (VO)2P2O7, catalyst for n-butane oxidation to maleic anhydride, was investigated under steady and unsteady conditions, in order to obtain information on the status of the active surface in reaction conditions. Specific treatments of hydrolysis and oxidation were applied in order to modify the characteristics of the surface layer of the catalyst, and then the unsteady catalytic performance was followed along with the reaction time, until the steady original behavior was restored. It was found that the transformations occurring on the vanadyl pyrophosphate surface depend on the catalyst characteristics (i.e., on the P/V atomic ratio) and on the reaction conditions.

N. Ballarini, F. Cavani, E. Degli Esposti, D. De Santi, S. Luciani, F. Trifirò, et al. (2009). The dynamic nature of vanadyl pyrophosphate, catalyst for the selective oxidation of n-butane to maleic anhydride. BOCA RATON (FL) : CRC Press.

The dynamic nature of vanadyl pyrophosphate, catalyst for the selective oxidation of n-butane to maleic anhydride

BALLARINI, NICOLA;CAVANI, FABRIZIO;DEGLI ESPOSTI, ELISA;LUCIANI, SILVIA;TRIFIRO', FERRUCCIO;CORTELLI, CARLOTTA;
2009

Abstract

The reactivity of vanadyl pyrophosphate (VO)2P2O7, catalyst for n-butane oxidation to maleic anhydride, was investigated under steady and unsteady conditions, in order to obtain information on the status of the active surface in reaction conditions. Specific treatments of hydrolysis and oxidation were applied in order to modify the characteristics of the surface layer of the catalyst, and then the unsteady catalytic performance was followed along with the reaction time, until the steady original behavior was restored. It was found that the transformations occurring on the vanadyl pyrophosphate surface depend on the catalyst characteristics (i.e., on the P/V atomic ratio) and on the reaction conditions.
2009
Catalysis of Organic Reactions
485
490
N. Ballarini, F. Cavani, E. Degli Esposti, D. De Santi, S. Luciani, F. Trifirò, et al. (2009). The dynamic nature of vanadyl pyrophosphate, catalyst for the selective oxidation of n-butane to maleic anhydride. BOCA RATON (FL) : CRC Press.
N. Ballarini; F. Cavani; E. Degli Esposti; D. De Santi; S. Luciani; F. Trifirò; C. Cortelli; R. Leanza; G. Mazzoni; A. Brückner; E. Bordes-Richard...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/78710
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