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New, Highly Durable, Low PGM Motorcycle Catalyst Formulations for the Indian 2-Wheeler Market
Technical Paper
2003-26-0003
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The Platinum Group Metal (PGM) content of catalyst formulations contribute significantly to the overall cost of catalytic converters for Indian carburettored 2-stroke and 4-stroke vehicles. Reducing the PGM content of these catalysts while maintaining high pollutant conversions and high durability demanded by motorcycle manufacturers and legislation, represents a significant challenge to the catalyst industry. Indian 2-stroke and 4-stroke vehicles have been used to investigate the effect of advanced catalyst formulations in combination with very low PGM loadings on transient conversion efficiency over the Indian Driving Cycle (IDC). Both conventional flow-through metallic monoliths and low cost stainless steel perforated tubes have been coated and evaluated. Static bench engine ageing has been used to simulate up to 30,000 km of on-road use and to demonstrate the exceptional durability of these new catalyst formulations. It was found that by the careful selection and combination of specific washcoat and PGM loadings, high durability and high conversion of pollutants was achieved at very low cost.
Authors
- David R. Coultas - Johnson Matthey Plc, Hertfordshire, UK
- Neil Collins - Johnson Matthey Plc, Hertfordshire, UK
- Joanna Sheppard - Johnson Matthey Plc, Hertfordshire, UK
- lain Midgley - Johnson Matthey Plc, Hertfordshire, UK
- Martyn Twigg - Johnson Matthey Plc, Hertfordshire, UK
- James Gillespie - Johnson Matthey India Pvt. Ltd., India
- Sandeepan Bisht - Johnson Matthey India Pvt. Ltd., India
- Maneesh Manocha - Johnson Matthey India Pvt. Ltd., India
Citation
Coultas, D., Collins, N., Sheppard, J., Midgley, l. et al., "New, Highly Durable, Low PGM Motorcycle Catalyst Formulations for the Indian 2-Wheeler Market," SAE Technical Paper 2003-26-0003, 2003, https://doi.org/10.4271/2003-26-0003.Also In
References
- “World Motorcycle Facts and Figures” Honda 2001
- Bhanot, B Kulkarni, U. A “Indian Auto Emissions Profile” Symposium on International Automotive Technology Pune, India January 2001
- Coultas, D. R. et al. “The Development and Application of 2-Stroke Catalysts for 2-Wheelers in Europe and Asia.” SAE 2001 01 1821
- O'Sullivan, R. D. “Two - Stroke Exhaust Catalyst Durability on an Indian 2-Wheeler and Comparison with Catalysts Aged on an Engine Bench” SAE 2001-01-0003