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Transient kinetic study of the SCR-DeNOx reaction |
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| Authors: | Luca Lietti Isabella Nova Enrico Tronconi Pio Forzatti |
| Affiliation: | Dipartimento di Chimica Industriale e Ingegneria Chimica, Politecnico di Milano, P.zza L. Da Vinci 32 20133 Milano Italy |
| Abstract: | The unsteady-state kinetics of the selective catalytic reduction (SCR) of NO with NH3 is studied over V2O5–WO3/TiO2 model catalysts by means of the transient response method. NH3 strongly adsorbs onto the catalyst surface whereas NO does not adsorb appreciably. A dynamic mathematical model based on a Temkin-type desorption process for NH3 and a SCR reaction rate with a complex dependence on the ammonia surface coverage is well suited to represent the data. |
| Keywords: | Selective catalytic reduction (SCR) Vanadia-based catalysts Transient kinetic study Ammonia adsorption-desorption SCR dynamic model |
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