Selective catalytic reduction of NOx to N2 over Co-Pt/ZSM-5; Part A. Characterisation and kinetic aspects

S.E. Maisuls, Kulathuiyer Seshan, S. Feast, S. Feast, J.A. Lercher

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Abstract

The selective catalytic reduction of NO by propene in the presence of excess oxygen has been studied over catalysts based on Co-Pt supported on ZSM-5. Pure Pt based catalysts are highly active, but produce large amounts of N2O. Bimetallic Co-Pt/ZSM-5 catalysts with low Pt contents (0.1 wt.%) show a synergistic effect by combining high stability and activity of Pt catalysts with the high N2 selectivity of Co catalysts. The lower selectivity to N2O is attributed to its selective conversion over Co. The catalysts also showed high water and sulfur tolerance above 350°C.
Original languageUndefined
Pages (from-to)69-81
Number of pages13
JournalApplied catalysis B: environmental
Volume29
Issue number1
DOIs
Publication statusPublished - 2001

Keywords

  • METIS-205572
  • Platinum
  • Selective catalytic reduction
  • Nitrogen oxides
  • ZSM-5
  • Hydrocarbon
  • Cobalt
  • Bimetallic
  • IR-74472

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