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Three-way Catalyst Concepts with Optimized Low Precious Metal Loadings
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English
Abstract
The general introduction of three-way catalysts in W-Europe starting in 1992 focusses again the attention of car manufacturers on the costs of the precious metals formulation.
Three strategies to reduce those costs are discussed: 1. the decrease of the platinum/rhodium loading; 2. the replacement of platinum by palladium and 3. the combination of platinum/rhodium with palladium/rhodium catalysts. The results show that under appropriate conditions of use catalysts with about 20 US$/1 precious metal cost could be a valuable automotive emission control tool.
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Authors
Citation
Engler, B., Koberstein, E., and Lox, E., "Three-way Catalyst Concepts with Optimized Low Precious Metal Loadings," SAE Technical Paper 900271, 1990, https://doi.org/10.4271/900271.Also In
References
- Öser P. Völker H. “Optimization of Catalyst Systems with Emphasis on Precious Metal Usage” SAE - Technical Paper Series 872096 1987
- Gandhi H. S. Shelef M. “The Role of Research in the Development of New Generation Automotive Catalysts” in “Catalysis and Automotive Pollution Control” Crucq A. Frennet A. Elsevier Science Publishers B. V. Amsterdam 1987
- Engler B. Koberstein E. Völker H. “Three-way Catalyst Performance Using minimized Rhodium Loadings” SAE - Technical Paper Series 872097 1987
- Engler B. Koberstein E. Lox E. in Frankfurt 1989
- Engler B. Koberstein E. Schubert P. “Automotive Exhaust Gas Catalysts: Surface Structure and Activity” Applied Catalysis 48 1989
- Socha L. S. Day J. P. Barnett E. H. “Impact of Catalysts Support Design Parameters on FTP Emissions” SAE - Technical Paper Series 892041 1989