An Efficient Methodology for Global SCR Kinetic Model Tuning

Yuanzhou  Xi, Cummins Emission Solutions

This presentation describes an efficient methodology for tuning global SCR kinetic model. This method was successfully used for  tuning a large set of experimental data collected from a bench reactor over  a state-of-the-art VSCR catalyst, covering a wide range of conditions on space velocity, NOx concentration, ANR, NO2/NOx ratio, temperature  etc. The effect of external mass transfer will also be discussed. This method can be easily modified for tuning other type of catalysts for diesel aftertreatment applications.

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