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Butting Monoliths in Catalytic Converters
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English
Abstract
Most catalytic converter designs today utilize monolith type catalyst supports. Many of these designs use more than one monolith because of different catalyst loadings, or constraints on the manufacture or coating of long monoliths. Usually a space exists between the monoliths. Traditional thinking has been that spacing was necessary for enhanced emissions, reduced flow restriction, or concerns about the physical integrity of the monoliths.
This paper presents the concept of eliminating the space, and butting the monoliths together as a viable converter assembly technique. Major benefits include simplified assembly, reduced number of components and cost, and improved durability, with no major effects on emissions or flow restriction.
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Citation
Kuisell, R., "Butting Monoliths in Catalytic Converters," SAE Technical Paper 960555, 1996, https://doi.org/10.4271/960555.Also In
References
- Givens et al. “Catalytic Converter for Purifying Gases,” July 1976
- Wendland “The Segmented Oxidizing, Monolith Catalytic Converter - Theory and Performance,” ASME 79-HT-55 August 1979
- Bressler, Weltens Terres “Multiple Disc Catalytic Converters - An Innovative Approach for Improved Conversion at Lower Cost,” SAE 940936 February 1994
- Stroom, Merry Gulati “Systems Approach to Packaging Design for Automotive Catalytic Converters,” SAE Paper No. 900500 February 1990