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Development of Advanced Three-Way Catalysts that Enable Low PGM Loadings for Future Mercosur Emissions Legislation
Technical Paper
2002-01-3551
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes the development of new high performance three-way catalyst (TWC) formulations with improved activity and enhanced thermal stability. These new TWC formulations enable the converter to be fitted closer to the engine and allow this future legislation to be met with catalysts using PGM levels significantly lower than those currently being employed. The performance benefits of these advanced platinum- and palladium-based catalysts are demonstrated on a number of different vehicles after bench-engine ageing.
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Authors
- Neil R. Collins - Johnson Matthey Catalytic Systems Division
- Darrell Morris - Johnson Matthey Catalytic Systems Division
- Alex L. Ravenscroft - Johnson Matthey Catalytic Systems Division
- Martyn V. Twigg - Johnson Matthey Catalytic Systems Division
- Gianmaria D. Borgialli - Johnson Matthey
- Almir J. Ribeiro - Johnson Matthey
Citation
Collins, N., Morris, D., Ravenscroft, A., Twigg, M. et al., "Development of Advanced Three-Way Catalysts that Enable Low PGM Loadings for Future Mercosur Emissions Legislation," SAE Technical Paper 2002-01-3551, 2002, https://doi.org/10.4271/2002-01-3551.Also In
References
- Brisley, R. J. Chandler, G. R. Jones, H. R. Andersen, P. J. Shady, P. J. “The Use of Palladium in Advanced Catalysts” SAE 950259 1995
- Collins, N. R. Chandler, G. R. Brisley, R. J. Andersen, P. J. Shady, P. J. Roth, S. A. “Catalyst Improvements to Meet European Stage III and ULEV Emissions Criteria” SAE 960799 1996
- Andersen, P. J. Ballinger, T. H. “Improvements in Pd:Rh and Pt:Rh Three Way Catalysts” SAE 990308 1999
- Brisley, R. J. Collins, N. R. French, A. C. Morris, D. Twigg, M. V. “Development of Advanced Platinum-Rhodium Catalyst for Future Emissions Requirements” SAE 1999-01-3627 1999
- Twigg, M. V. Collins Morris, D. Cooper, J. A. Marvell, D. R. Will, N. S. Gregory, D. Tancell, P. “High Temperature Durable Three-way Catalysts to meet European Stage IV Emission Requirements SAE 2002-01-0351 2002
- Twigg, M. V. Collins, N. R. Morris, D. Brisley, R. J. Ribeiro, A. J. Borgialli, G. D. “High Performance Advanced Three-way Catalysts for the Proposed 2004 and 2008 Mercosur Emissions Standards” SAE 2000-01-3303 2000