Lean NOx catalysis over Sn/γ-Al2O3 catalysts

M. C. Kung, P. W. Park, D. W. Kim, H. H. Kung

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Abstract

Sn/γ-Al2O3 were effective and highly stable catalysts for NO reduction with propene under high partial pressures of oxygen and water. The activity depended on the Sn loading. For a 10 wt% Sn/Al2O3 at 475-500°C, 58% conversion of 1000 ppm NO to N2 was obtained in the presence of 10% water and 15% O2, at a space velocity of 30,000 h-1, and 77% conversion at 15,000 h-1. The NO conversion increased with O2 partial pressure but was suppressed by water below 500°C. The activity was also suppressed by SO2 but could be restored slowly after the removal of SO2.

Original languageEnglish
Article numberjcat.1998.2291
Pages (from-to)1-5
Number of pages5
JournalJournal of Catalysis
Volume181
Issue number1
DOIs
Publication statusPublished - Jan 1 1999

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ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Kung, M. C., Park, P. W., Kim, D. W., & Kung, H. H. (1999). Lean NOx catalysis over Sn/γ-Al2O3 catalysts. Journal of Catalysis, 181(1), 1-5. [jcat.1998.2291]. https://doi.org/10.1006/jcat.1998.2291