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Long-term stability of the V2O5/Al2O3 catalyst for the selective reduction of nitrogen oxides

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Abstract

Changes of the V2O5/Al3O3 catalyst aged for up to 10 years under real conditions of the selective catalytic reduction of NO x by ammonia (SCR) at the tail gases of the nitric acid plant were characterized by51V NMR spectroscopy, porosimetry, temperature programmed reduction (TPR) and catalytic activity measurements. The catalytic activity and the redox properties of the catalyst were found intact. Only small variations of the ratio of the octahedral and tetrahedral vanadia species were documented by51V NMR on aged catalyst.

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Authors and Affiliations

  1. Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, Pelleova 24, 160 00, Prague 6, Czech Republic

    Z. Sobalik & M. Markvart

  2. Institute of Catalysis, Siberian Branch of the Academy of Sciences, 630 090, Novosibirsk, Russia

    O. B. Lapina

Authors
  1. Z. Sobalik
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  2. M. Markvart
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  3. O. B. Lapina
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Sobalik, Z., Markvart, M. & Lapina, O.B. Long-term stability of the V2O5/Al2O3 catalyst for the selective reduction of nitrogen oxides. Catal Lett 28, 25–31 (1994). https://doi.org/10.1007/BF00812466

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  • DOI: https://doi.org/10.1007/BF00812466

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