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NH3-SCR by monolithic Cu-ZSM-5 and Cu-AFX catalysts: Kinetic modeling and engine bench tests

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Title: NH3-SCR by monolithic Cu-ZSM-5 and Cu-AFX catalysts: Kinetic modeling and engine bench tests
Authors: Shibata, Gen Browse this author
Eijima, Wataru Browse this author
Koiwai, Ryutaro Browse this author
Shimizu, Ken-ichi Browse this author →KAKEN DB
Nakasaka, Yuta Browse this author →KAKEN DB
Kobashi, Yoshimitsu Browse this author →KAKEN DB
Kubota, Yoshihiro Browse this author
Ogura, Masaru Browse this author
Kusaka, Jin Browse this author
Keywords: NH3-SCR
Kinetic modeling
Engine bench
Issue Date: 15-Jul-2019
Publisher: Elsevier
Journal Title: Catalysis Today
Volume: 332
Start Page: 59
End Page: 63
Publisher DOI: 10.1016/j.cattod.2018.06.023
Abstract: A simple kinetic model for the standard NH3-SCR reaction by Cu-ZSM-5 catalysts has been developed by assuming three reaction steps: NH3 adsorption (desorption), reactions of adsorbed NH3 with O2 (NH3 oxidation) and NO (NH3-SCR). The model is based on Arrhenius parameters for NH3-SCR and NH3 oxidation by a powder catalyst, combined with models for heat and mass transport and parameters of monolithic catalysts. The model is validated with the experimental results, not included in the estimation of the model, for NH3-SCR by monolithic catalysts with different parameters (catalyst loading and cell density). NOx removal from diesel exhaust, generated by engine bench, was also carried out by using monolithic Cu-ZSM-5 and Cu-AFX catalysts. The results suggest the poisoning effect of hydrocarbons in the exhaust emissions on NOx conversion is more significant for Cu-ZSM-5 than Cu-AFX.
Rights: © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 柴田 元

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