Laboratory Studies and Mathematical Modeling of Urea SCR Catalyst Performance

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Laboratory Studies and Mathematical Modeling of Urea SCR Catalyst Performance

Lambert, Christine K. / Cavataio, Giovanni / Kim, Jeong Y. / Patterson, Joseph E. / Laing, Paul M.

This paper presents the development of an analytical model that complements laboratory based experiments to provide a tool for Selective Catalyst Reduction (SCR) applications. The model calibration is based on measured data from NOx reduction performance tests as well as ammonia (NH3) adsorption/desorption tests over select SCR catalyst formulations in a laboratory flow reactor. Only base metal/zeolite SCR samples were evaluated. Limited validations are presented that show the model agrees well with vehicle data from Environmental Protection Agency Federal Test Procedure (EPA FTP) emission assessments. The model includes energy and mass balances, several different NH3 reactions with NOx, NH3 adsorption and desorption algorithms, and NH3 oxidation.

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Dokumentinformationen

Titel :

Laboratory Studies and Mathematical Modeling of Urea SCR Catalyst Performance

Weitere Titelangaben:

Sae Technical Papers

Beteiligte:

Lambert, Christine K. (Autor:in) / Cavataio, Giovanni (Autor:in) / Kim, Jeong Y. (Autor:in) / Patterson, Joseph E. (Autor:in) / Laing, Paul M. (Autor:in)

Kongress:

SAE World Congress & Exhibition ; 2007

Erschienen in:

Sae Technical Paper Series

Erscheinungsdatum :

2007-04-16

ISSN :

2688-3627 , 0148-7191

DOI :

https://doi.org/10.4271/2007-01-1573

Medientyp :

Aufsatz (Konferenz)