NOx SCR by decane and propylene on Pt + Cu/Zr-pillared clays in realistic feeds: Performance and mechanistic features versus structural specificity of nanosized zirconia pillars

Vladislav Sadykov, Tatiana Kuznetsova, Vladimir Doronin, Rimma Bunina, Galina Alikina, Lubsan Batuev, Valerii Matyshak, Aleksander Rozovskii, Valentin Tretyakov, Tatiana Burdeynaya, Valerii Lunin, Julian Ross

Research output: Contribution to journalArticlepeer-review

Abstract

Pt + Cu-loaded ZrPILC tested in the reactions of NOx selective catalytic reduction by propylene and decane in realistic feeds with a high content of water, oxygen and an admixture of SO2 demonstrated promising performance at high space velocities (up to 100 000 h-1) in the temperature range of 150-400 °C. A strong promoting effect of water, oxygen and the catalyst presulfation on the degree of NOx conversion into N2 was revealed. The specificity of these catalyst action in realistic feeds was explained by taking into account the textural, structural and surface features of zirconia-pillared clays as well as the mechanism of NOx HC SCR reaction including participation of strongly bound species in key stages.

Original languageEnglish
Pages (from-to)13-22
Number of pages10
JournalCatalysis Today
Volume114
Issue number1
DOIs
Publication statusPublished - 30 Apr 2006

Keywords

  • de-NO by HC SCR
  • Diesel exhausts
  • Mechanism of action by in situ FTIRS
  • Performance in realistic feeds
  • Presulfation
  • Supported Pt + Cu
  • Zirconia-pillared clays

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