Oxidative conversion of isobutane to isobutene over V-Sb-Ni oxide catalysts

V. P. Vislovskiy, N. T. Shamilov, A. M. Sardarly, R. M. Talyshinskii, V. Yu Bychkov, P. Ruiz, V. Cortés Corberán, Z. Schay, Zs Koppany

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11 Citations (Scopus)

Abstract

Insertion of proper amounts of nickel oxide into alumina-supported V-Sb oxide catalyst for the oxidative dehydrogenation of isobutane substantially increases isobutane conversion (from 36 to 42-44%) at selectivity to isobutene ∑70%. Fresh and used catalysts (including reference bulk V-Sb-O and V-Sb-Ni-O systems) were characterised by BET, XRD, XPS and H2-TPR. Formation of new phase of nickel vanadate NiV2O6 at the expense of free VOx-phase leads to more reducible catalyst with increased amounts of mobile lattice oxygen. The facile redox cycle of vanadium species is considered to improve the catalyst activity.

Original languageEnglish
Pages (from-to)143-150
Number of pages8
JournalApplied Catalysis A: General
Volume250
Issue number1
DOIs
Publication statusPublished - Sep 10 2003

Keywords

  • Isobutane
  • Isobutene
  • Nickel oxide
  • Oxidative dehydrogenation
  • Vanadium-antimony oxide catalysts

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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    Vislovskiy, V. P., Shamilov, N. T., Sardarly, A. M., Talyshinskii, R. M., Bychkov, V. Y., Ruiz, P., Cortés Corberán, V., Schay, Z., & Koppany, Z. (2003). Oxidative conversion of isobutane to isobutene over V-Sb-Ni oxide catalysts. Applied Catalysis A: General, 250(1), 143-150. https://doi.org/10.1016/S0926-860X(03)00295-3