Promotive effect of additives to In/H-ZSM-5 catalyst for selective reduction of nitric oxide with methane in the presence of water vapor

Eiichi Kikuchi, Masaru Ogura, Noriyuki Aratani, Yukihiro Sugiura, Sachiko Hiromoto, Katsunori Yogo

Research output: Contribution to journalArticle

92 Citations (Scopus)

Abstract

It has been found that Ga and In/H-ZSM-5 are active catalysts for selective NO reduction with methane, while the activities are retarded by water vapor, which particularly retards the oxidation of NO to NO2 on zeolitic Lewis acid sites, a necessary step for the reduction of NO with methane. In order to attain a H2O-tolerant catalyst based on In/H-ZSM-5, the substitute for Lewis acid sites was searched. After testing several metal species, it was found that In/H-ZSM-5 loading Pt, Rh and Ir exhibited high catalytic activity for NO reduction even in the presence of H2O.

Original languageEnglish
Pages (from-to)35-40
Number of pages6
JournalCatalysis Today
Volume27
Issue number1-2
DOIs
Publication statusPublished - 1996 Jan 29
Externally publishedYes

Keywords

  • In/H-ZSM-5
  • Nitric oxide
  • Reduction
  • Water vapor

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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