Kinetic modeling of NH3-SCR over a supported Cu zeolite catalyst using axial species distribution measurements
Journal article, 2015
In this study, a kinetic model is developed for NH3-SCR over a honeycomb-monolith-supported Cu-zeolites using intra-catalyst axial species distribution measurements. An ammonia TPD experiment, together with micro calorimetry data were used for tuning the ammonia adsorption and desorption properties. The spatial distribution for NO oxidation, NH3 oxidation and NH3 "Standard" SCR were modeled between 200 and 400 degrees C. Four-step protocol measurements were employed in order to validate the transient functions of the model. The resulting kinetic model provides good spatiotemporal simulation of the SCR reaction and component reactions throughout the monolith catalyst system.
Spaci-MS
Spatial distribution measurements
NH3 SCR
Cu zeolites
Kinetic modeling
Author
Xavier Auvray
Competence Centre for Catalysis (KCK)
Chalmers, Chemistry and Chemical Engineering, Chemical Technology
W. P. Partridge
Oak Ridge National Laboratory
J. S. Choi
Oak Ridge National Laboratory
J. A. Pihl
Oak Ridge National Laboratory
Filipa Coelho
Chalmers, Chemistry and Chemical Engineering, Chemical Technology
Competence Centre for Catalysis (KCK)
A. Yezerets
Cummins Inc.
K. Kamasamudram
Cummins Inc.
N. W. Currier
Cummins Inc.
Louise Olsson
Competence Centre for Catalysis (KCK)
Chalmers, Chemistry and Chemical Engineering, Chemical Technology
Applied Catalysis B: Environmental
0926-3373 (ISSN) 1873-3883 (eISSN)
Vol. 163 393-403Areas of Advance
Transport
Subject Categories (SSIF 2011)
Chemical Engineering
DOI
10.1016/j.apcatb.2014.08.003