Lean NO x catalysis over Sn/γ-Al 2O 3 catalysts

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Sn/γ-Al 2O 3 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/Al 2O 3 at 475-500°C, 58% conversion of 1000 ppm NO to N 2 was obtained in the presence of 10% water and 15% O 2, at a space velocity of 30,000 h -1, and 77% conversion at 15,000 h -1. The NO conversion increased with O 2 partial pressure but was suppressed by water below 500°C. The activity was also suppressed by SO 2 but could be restored slowly after the removal of SO 2.

Original languageEnglish (US)
Article numberjcat.1998.2291
Pages (from-to)1-5
Number of pages5
JournalJournal of Catalysis
Volume181
Issue number1
StatePublished - Dec 1 1999

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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