Improvements In Converter Durability and Activity via Catalyst Formulation

890796

02/01/1989

Event
SAE International Congress and Exposition
Authors Abstract
Content
The performance data for monolithic ceramic converters, to date, shows that fuel management, engine characteristics, substrate design, catalyst formulation, substrate/coating interaction, and packaging design have a profound influence on converter durability and sustained activity and that certain trade-offs are necessary to optimize the overall performance of the converter system. This paper concentrates on the effect of the catalyst system on light-off performance, steady state conversion efficiency, pressure drop, high temperature strength, and thermal shock resistance. The physical properties and engine test data for Corning's EX-20, 400/6 square cell substrate with two different catalyst formulations, production high-tech vs advanced high-tech, show that the advanced catalyst results in marked improvement in mechanical durability and catalytic activity over that achievable with the production catalyst due to improved substrate/coating interaction.
Meta TagsDetails
DOI
https://doi.org/10.4271/890796
Pages
11
Citation
Guiati, S., summers, J., Linden, D., and White, J., "Improvements In Converter Durability and Activity via Catalyst Formulation," SAE Technical Paper 890796, 1989, https://doi.org/10.4271/890796.
Additional Details
Publisher
Published
Feb 1, 1989
Product Code
890796
Content Type
Technical Paper
Language
English