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Numerical Simulation of NO/NO2/NH3 Reactions on SCR-Catalytic Converters:Model Development and Applications
Technical Paper
2006-01-0468
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A 1D+1D numerical model describing the ammonia based SCR process of NO and NO2 on vanadia-titania catalysts is presented. The model is able to simulate coated and extruded monoliths. Basing on a fundamental investigation of the catalytic processes a reaction mechanism for the NO/NO2 - NH3 reacting system is proposed and modeled. After the parameterization of the reaction mechanism the reaction kinetics have been coupled with models for heat and mass transport. Model validation has been performed with engine test bench experiments. Finally the model has been applied to study the influence of NO2 on SCR efficiency within ETC and ESC testcycles, Additional simulations have been conducted to identify the potential for catalyst volume reduction if NO2 is present in the inlet feed.
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Authors
- Daniel Chatterjee - DaimlerChrysler AG
- Thomas Burkhardt - DaimlerChrysler AG
- Michel Weibel - DaimlerChrysler AG
- Enrico Tronconi - Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, Italy
- Isabella Nova - Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, Italy
- Cristian Ciardelli - Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, Italy
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Citation
Chatterjee, D., Burkhardt, T., Weibel, M., Tronconi, E. et al., "Numerical Simulation of NO/NO2/NH3 Reactions on SCR-Catalytic Converters:Model Development and Applications," SAE Technical Paper 2006-01-0468, 2006, https://doi.org/10.4271/2006-01-0468.Also In
References
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