期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 163, 期 -, 页码 393-403出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2014.08.003
关键词
NH3 SCR; Kinetic modeling; Spatial distribution measurements; Cu zeolites; Spaci-MS
资金
- U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office
- Swedish Foundation for Strategic Research [F06-0006]
- U.S. Department of Energy [DE-AC05-00OR22725]
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. (C) 2014 Elsevier B.V. All rights reserved.
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