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In-situ three-way-catalyst characterization for a laboratory test bench

Title data

Beulertz, Gregor ; Fritsch, Mirko ; Fischerauer, Gerhard ; Herbst, Felix ; Votsmeier, Martin ; Gieshoff, Jürgen ; Hagen, Gunter ; Moos, Ralf:
In-situ three-way-catalyst characterization for a laboratory test bench.
2012
Event: CAPOC9 - 9th International Congress on Catalysis and Automotive Pollution Control , 29. - 31.08.2012 , Brussels, Belgium.
(Conference item: Conference , Paper )

Project information

Project title:
Project's official titleProject's id
No informationMO 1060/13-1, FI 956/5-1

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Three-way catalyst-based automotive exhaust gas aftertreatment is of high importance to meet today’s emission standards. To determine in situ the oxygen loading state of the three-way catalysts, a microwave cavity perturbation method is used. In this study, it is investigated whether this measurement setup that had originally been described for full-sized catalysts can be transferred to a lab test bench using 1” cores. The initial tests were successful and a high correlation between the loading degree dependent resonance frequency and the conversion was found. Furthermore, a new simulation model which takes the oxidation of the ceria by H2O and CO2 into account could be validated with this microwave measurement technique. The benefit of this method is not only faster testing at much lower costs but also a higher flexibility with respect to composition of the feed gas.

Further data

Item Type: Conference item (Paper)
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology
Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology > Chair Measurement and Control Technology - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer
Faculties > Faculty of Engineering Science > Chair Functional Materials
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 18 May 2015 09:06
Last Modified: 14 Apr 2016 06:45
URI: https://eref.uni-bayreuth.de/id/eprint/13606