Synergism between Pt/Al 2O 3 and Au/TiO 2 in the low temperature oxidation of propene

D. H. Kim, M. C. Kung, A. Kozlova, S. D. Yuan, H. H. Kung

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Abstract

CO impedes the low temperature (<170°C) oxidation of C 3H 6 on supported Pt. Supported Au catalysts are very effective in the removal of CO by oxidation, although it has little propene oxidation activity under these conditions. Addition of Au/TiO 2 to Pt/Al 2O 3 either as a physical mixture or as a pre-catalyst removes the CO and lowers the light-off temperature (T 50) for C 3H 6 oxidation compared with Pt catalyst alone by ∼54°C in a feed of 1% CO, 400 ppm C 3H 6, 14% O 2, 2% H 2O.

Original languageEnglish
Pages (from-to)11-15
Number of pages5
JournalCatalysis Letters
Volume98
Issue number1
DOIs
Publication statusPublished - Oct 1 2004

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Keywords

  • Au/TiO
  • C H oxidation
  • CO oxidation
  • Physical mixture
  • Pt/Al O
  • Synergism

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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