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

doi:10.1016/0920-5861(95)00169-7

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 journal › Article › peer-review

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 language	English
Pages (from-to)	35-40
Number of pages	6
Journal	Catalysis Today
Volume	27
Issue number	1-2
DOIs	https://doi.org/10.1016/0920-5861(95)00169-7
Publication status	Published - 1996 Jan 29
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1016/0920-5861(95)00169-7

Cite this

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

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.",

keywords = "In/H-ZSM-5, Nitric oxide, Reduction, Water vapor",

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AU - Kikuchi, Eiichi

AU - Ogura, Masaru

AU - Aratani, Noriyuki

AU - Sugiura, Yukihiro

AU - Hiromoto, Sachiko

AU - Yogo, Katsunori

PY - 1996/1/29

Y1 - 1996/1/29

N2 - 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.

AB - 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.

KW - In/H-ZSM-5

KW - Nitric oxide

KW - Reduction

KW - Water vapor

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

Abstract

Keywords

ASJC Scopus subject areas

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