Development of Detailed Surface Reaction Database for TWC Based on Gas Phase and Surface Species Analyses (CO/NO/O2 reaction mechanism on PGM supported on Al2O3)

Daisuke Shimokuri; Hiroshi Murakami; Yuhei Matsumoto; Satoshi Hinokuma; Naoki Ishimoto; Daisuke Moriyama; Yusuke Kozai; Hitoshi Hongou; Hideaki Yokohata; Hiroyuki Takebayashi

doi:10.1299/jmsesdm.2017.9.A309

2017.9

Session ID : A309

DOI https://doi.org/10.1299/jmsesdm.2017.9.A309

Conference information

Host: The Japan Society of Mechanical Engineers

Name : The Ninth International Conference on Modeling and Diagnostics for Advanced Engine Systems (COMODIA 2017)

Date : July 25, 2017 - July 28, 2017

Development of Detailed Surface Reaction Database for TWC Based on Gas Phase and Surface Species Analyses

(CO/NO/O₂ reaction mechanism on PGM supported on Al₂O₃)

*Daisuke Shimokuri, Hiroshi Murakami, Yuhei Matsumoto, Satoshi Hinokuma, Naoki Ishimoto, Daisuke Moriyama, Yusuke Kozai, Hitoshi Hongou, Hideaki Yokohata, Hiroyuki Takebayashi

Author information

*Daisuke Shimokuri
Department of Mechanical Engineering, Hiroshima University
Hiroshi Murakami
Mazda Motor Corporation
Yuhei Matsumoto
Mazda Motor Corporation
Satoshi Hinokuma
Department ofr Applied Chemistry & Biochemistry, Kumamoto University
Naoki Ishimoto
Department of Mechanical Engineering, Hiroshima University
Daisuke Moriyama
Department of Mechanical Engineering, Hiroshima University
Yusuke Kozai
Department of Mechanical Engineering, Hiroshima University
Hitoshi Hongou
Mazda Motor Corporation
Hideaki Yokohata
Mazda Motor Corporation
Hiroyuki Takebayashi
Mazda Motor Corporation

Keywords: Three-Way Catalysts, Platinum Group Metal, Surface Reaction, Reaction Pathways, Reaction Dynamics

CONFERENCE PROCEEDINGS FREE ACCESS

Details

Abstract

In this study, a detailed chemical kinetic database of NO/ CO/ O₂ surface reaction on Rh/ Al₂O₃ has been constructed based on the measurements of gaseous / surface species. The gaseous species at the upstream and downstream of the monolithic catalyst were identified by FTIR, while the surface species on the powder catalyst were directly measured by FTIR. Based on those experimental results, detailed surface reaction kinetic database has been constructed. As the result of numerical simulation with 1-D code, it was confirmed that the gaseous conversion rates of NO and CO were quantitatively reproduced with the database.

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