Effective model for prediction of N2O and NH3 formation during the regeneration of NO x storage catalyst

Petr Kočí; Šárka Bártová; David Mráček; Miloš Marek; Jae Soon Choi; Mi Young Kim; Josh A. Pihl; William P. Partridge

doi:10.1007/s11244-013-9939-y

Effective model for prediction of N₂O and NH₃ formation during the regeneration of NO _x storage catalyst

Petr Kočí, Šárka Bártová, David Mráček, Miloš Marek, Jae Soon Choi, Mi Young Kim, Josh A. Pihl, William P. Partridge

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

In this paper we propose an effective global kinetic model that allows prediction of N₂O and NH₃ formation during the reduction of stored NO _x in dependence on the composition of the rich mixture (H₂/CO/C₃H₆), actual operating temperature, and length of regeneration period. A bench flow reactor equipped with a high-speed FTIR was used to measure dynamic evolution of gas components during periodic lean/rich operation of a fully formulated NSRC catalyst (PtPdRh/Ba/Ce-Zr/Mg-Al/ Al₂O₃).

Original language	English
Pages (from-to)	118-124
Number of pages	7
Journal	Topics in Catalysis
Volume	56
Issue number	1-8
DOIs	https://doi.org/10.1007/s11244-013-9939-y
State	Published - May 2013

Funding

Acknowledgments The work was supported by Czech Ministry of Education (Project LH 12086) and US Department of Energy Vehicle Technologies Program (managers: Ken Howden and Gurpreet Singh).

Keywords

Lean NO trap
NH
NO
NO reduction
NO storage
Selectivity

Access to Document

10.1007/s11244-013-9939-y

Cite this

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abstract = "In this paper we propose an effective global kinetic model that allows prediction of N2O and NH3 formation during the reduction of stored NO x in dependence on the composition of the rich mixture (H2/CO/C3H6), actual operating temperature, and length of regeneration period. A bench flow reactor equipped with a high-speed FTIR was used to measure dynamic evolution of gas components during periodic lean/rich operation of a fully formulated NSRC catalyst (PtPdRh/Ba/Ce-Zr/Mg-Al/ Al2O3).",

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AU - Kočí, Petr

AU - Bártová, Šárka

AU - Mráček, David

AU - Marek, Miloš

AU - Choi, Jae Soon

AU - Kim, Mi Young

AU - Pihl, Josh A.

AU - Partridge, William P.

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KW - NO storage

KW - Selectivity

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