Kinetic modeling of NH3-SCR over a supported Cu zeolite catalyst using axial species distribution measurements

Xavier Auvray; William Partridge; Jae Soon Choi; Josh Pihl; Filipa Coehlo; Aleksey Yezerets; Krishna Kamasamudram; Neal Currier; Louise Olsson

doi:10.1016/j.apcatb.2014.08.003

Kinetic modeling of NH₃-SCR over a supported Cu zeolite catalyst using axial species distribution measurements

Xavier Auvray, William Partridge, Jae Soon Choi, Josh Pihl, Filipa Coehlo, Aleksey Yezerets, Krishna Kamasamudram, Neal Currier, Louise Olsson

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

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°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.

Original language	English
Pages (from-to)	393-403
Number of pages	11
Journal	Applied Catalysis B: Environmental
Volume	163
DOIs	https://doi.org/10.1016/j.apcatb.2014.08.003
State	Published - Feb 2015

Funding

Notice: This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. This work is a collaboration between Oak Ridge National Laboratory, Competence Centre for Catalysis at Chalmers University and Cummins Inc. This research was sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office , with Ken Howden and Gurpreet Singh as the Program Managers and the Swedish Foundation for Strategic Research (F06-0006).

Funders	Funder number
U.S. Department of Energy
Office of Energy Efficiency and Renewable Energy
Stiftelsen för Strategisk Forskning	F06-0006

Keywords

Cu zeolites
Kinetic modeling
Spaci-MS
Spatial distribution measurements

Access to Document

10.1016/j.apcatb.2014.08.003

Cite this

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title = "Kinetic modeling of NH3-SCR over a supported Cu zeolite catalyst using axial species distribution measurements",

abstract = "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°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.",

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AU - Auvray, Xavier

AU - Partridge, William

AU - Choi, Jae Soon

AU - Pihl, Josh

AU - Coehlo, Filipa

AU - Yezerets, Aleksey

AU - Kamasamudram, Krishna

AU - Currier, Neal

AU - Olsson, Louise

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AB - 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°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.

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