Propane ammoxidation catalyst prepared by thermally induced spreading of Sb2O3 on V/Al/O-mixed oxide
| Autor: | J. Bilde, Pierre Delichere, Laurence Burel, Stéphane Loridant, Jean-Marc M. Millet |
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| Přispěvatelé: | RAFFINAGE (RAFFINAGE), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), +PDE, +LBU |
| Rok vydání: | 2013 |
| Předmět: |
Process Chemistry and Technology
Inorganic chemistry [CHIM.CATA]Chemical Sciences/Catalysis 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology [SDE.ES]Environmental Sciences/Environmental and Society 01 natural sciences Catalysis 0104 chemical sciences Propene chemistry.chemical_compound chemistry Propane Mixed oxide Acrylonitrile Antimony oxide 0210 nano-technology Ammoxidation Selectivity |
| Zdroj: | Applied Catalysis A : General Applied Catalysis A : General, Elsevier, 2013, 468, pp.341-349. ⟨10.1016/j.apcata.2013.08.042⟩ |
| ISSN: | 0926-860X |
| DOI: | 10.1016/j.apcata.2013.08.042 |
| Popis: | RAFFINAGE+JBI:PDE:LBU:SLO:JMI; International audience; Mechanical mixtures of Sb2O3 and V/Al/O mixed oxide have been tested as catalysts in the ammoxidation of propane. The results obtained showed that upon addition of Sb2O3 the propane conversion rate and the selectivity to acrylonitrile were decreased but to a limited extent whereas a strong decrease in selectivity to CO x was observed to the advantage of selectivity to propene. Sb2O3 completely reacts with the V/Al/O mixed oxide to form a rutile-type V1-xAlxSbO4 phase that spreads over the mixed oxide. If the structure modifications have to be taken into account to explain the difference in catalytic properties, the characterization of the catalysts allowed proposing that they primarily result from the contamination of the surface of the active V/Al/O mixed oxide by Sb species. If the changes in catalytic properties evidenced in the study appear rather unproductive in terms of yield in acrylonitrile, they can be of interest if a process integrated a recycling of the reaction feeds was designed for an industrial application. (C) 2013 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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