Journal article
Modeling and Performance Analysis of a Field-Aged Fe-Zeolite Catalyst in a Heavy Duty Diesel Engine Application
SAE International journal of passenger cars. Mechanical systems, v 9(2), pp 952-959
01 Jun 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
In this study a 1-dimensional computational model of a Fe-Zeolite catalyst, implementing conservation of mass, species and energy for both gas and catalyst surface phases has been developed to simulate emissions conversion performance. It is applied to both a fresh catalyst and one that has been aged through exposure to the exhaust system of a Heavy Duty Diesel engine performing in the field for 376K miles. Details of the chemical kinetics associated with the various NOx reduction reactions in the two Fe-Zeolite configurations have been examined and correlated with data from a synthetic gas rig test bench. It was found that the Standard reaction, (4NH(3) + 4NO + O-2 -> 2N(2) + 6H(2)O), which is one of the main reactions for NOx reduction, degraded significantly at the lower temperatures for the aged system. Meanwhile the Fast reaction, (4NH(3) + 2NO + 2NO(2) -> 4N(2) + 6H(2)O), was the least affected and as such became the dominant mechanism for obtaining compliant NOx reduction levels towards the end of the product's rated life.
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Details
- Title
- Modeling and Performance Analysis of a Field-Aged Fe-Zeolite Catalyst in a Heavy Duty Diesel Engine Application
- Creators
- Roxanna Moores - Drexel UniversityNicholas Cernansky - Drexel UniversityGregory Birky - Volvo Powertrain North AmericaTimothy Suder - Volvo Powertrain North America
- Publication Details
- SAE International journal of passenger cars. Mechanical systems, v 9(2), pp 952-959
- Publisher
- Sae Int
- Number of pages
- 8
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:000383620800050
- Scopus ID
- 2-s2.0-84988891214
- Other Identifier
- 991019167903304721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Transportation Science & Technology