Vanadium aluminium oxynitride catalyst for propane ammoxidation

Florea, M.;Silvy, RP.;Grange, Paul
(2004) 4th International Symposium on Nitrides — Location: Mons(Belgium) (17.November.2003)

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  • Florea, M.
    Author
  • Silvy, RP.
    Author
  • Grange, PaulUCLouvain
    Author
Abstract
High surface area vanadium aluminium oxynitrides (VAlON) prepared by nitridation of the amorphous oxide precursor exhibit a high acrylonitrile yield in the propane ammoxidation. It was found that their catalytic performances strongly depend on: (i) the amount of vanadium and (ii) the nitrogen content. The catalysts exhibited a remarkable activity with a maximum for V/Al of 0.25 in the presence of a molar ratio C3H8: O-2: NH3 of 1.25:3: 1. Under these conditions, the acrylonitrile selectivity and yield were 50% and 30%, respectively. These results could be explained by an optimal degree of nitridation and, further, an optimal reduction degree of vanadium.
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Florea, M., Silvy, RP., & Grange, P. (2004). Vanadium aluminium oxynitride catalyst for propane ammoxidation. Silicates Industriels : ceramic science and technology, 69(5-6), 53-59. https://hdl.handle.net/2078.5/28227 (Original work published 2004)