Two-Dimensional Transient Monolith Model for Selective Catalytic Reduction using Vanadia-based Catalyst 2008-28-0022
In this paper, we report the modeling of the selective catalytic reduction (SCR) of NOx using ammonia on a commercial vanadia-titania based catalyst. The model combines a steady-state two-dimensional channel model with a transient two- or three-dimensional monolith model of the whole catalytic monolith converter.
The reaction mechanism includes the standard and fast SCR reactions and also the high-temperature oxidation of ammonia to model the decrease in conversion observed at higher temperatures. We used in-house experimental data spanning a wide range of inlet compositions and temperatures to validate the model. The model was found to be in excellent quantitative agreement with the experimental data.
Citation: Joshi, A., Jiang, Y., Flörchinger, P., and Ogunwumi, S., "Two-Dimensional Transient Monolith Model for Selective Catalytic Reduction using Vanadia-based Catalyst," SAE Technical Paper 2008-28-0022, 2008, https://doi.org/10.4271/2008-28-0022. Download Citation
Ameya Joshi, Yi Jiang, Peter Flörchinger, Steven Ogunwumi
Fifth International SAE India Mobility Conference on Emerging Automotive Technologies Global and Indian Perspective