Ammoxidation of propane to acrylonitrile on VSbO catalysts. Role of ammonia in the reaction pathways
1996; Elsevier BV; Volume: 32; Issue: 1-4 Linguagem: Inglês
10.1016/s0920-5861(96)00078-8
ISSN1873-4308
AutoresH.‐W. Zanthoff, S.A. Buchholz, Olga Ovsitser,
Tópico(s)Mesoporous Materials and Catalysis
ResumoTransient experiments in the vacuum on the ammoxidation of propane over VSb5Ox- and VSb5Ox(30 wt%)/Al2O3 catalysts were performed. Additionally, the interaction of ammonia with the catalysts was investigated by means of TPD and DRIFT spectroscopic studies. The reported results reveal that short lived NHx.-species, most probably NH3,ads or NH+4, are active species in the formation of acrylonitrile from propane. These species are also involved in the formation of the non-selective side-product N2, which is formed via the intermediates NO and N2O.
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