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Russian Chemical Bulletin

, Volume 45, Issue 2, pp 324–327 | Cite as

Reduction of nitrogen oxides with ammonia over complex vanadium and chromium oxides

  • V. L. Vokov
  • G. S. Zakharova
  • L. V. Strukova
  • T. Edkhazi
  • O. V. Pozdnyakova
Physical Chemistry
  • 28 Downloads

Abstract

Catalytic properties of γ-Al2O3 -supported complex vanadium and chromium oxides V2−xCr x O5−δ (0 < × s 1.3), amorphous to X-rays, in the reduction of nitrogen oxides with ammonia were studied. Vanadium exists in these catalysts mostly in a pentavalent state and chromium exists as Cr3+ and Cr6+. As the content of chromium in the catalysts increases, the optimal temperature of the process decreases, and the degree of conversion of nitrogen oxides increases.

Key words

complex oxides, vanadium, chromium catalytic properties nitrogen oxides, ammonia, reduction 

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References

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Copyright information

© Plenum Publishing Corporation 1996

Authors and Affiliations

  • V. L. Vokov
    • 1
  • G. S. Zakharova
    • 1
  • L. V. Strukova
    • 2
  • T. Edkhazi
    • 3
  • O. V. Pozdnyakova
    • 2
  1. 1.Ural Branch of the Russian Academy of SciencesInstitute of Solid State of ChemistryEkaterinburgRussian Federation
  2. 2.Ural State Technical UniversityEkaterinburgRussian Federation
  3. 3.University of VeszpremVeszpremHungary

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