Numerical Simulation of NO/NO2/NH3 Reactions on SCR-Catalytic Converters:Model Development and Applications

2006-01-0468

04/03/2006

Event
SAE 2006 World Congress & Exhibition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/2006-01-0468
Pages
14
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.
Additional Details
Publisher
Published
Apr 3, 2006
Product Code
2006-01-0468
Content Type
Technical Paper
Language
English