Impact of Substrate Geometry on Automotive TWC Gasoline (Three Way Catalyst) Performance

Paper #:
  • 2017-01-0923

Published:
  • 2017-03-28
DOI:
  • 10.4271/2017-01-0923
Citation:
Szczepanski, E., Koda, A., Sweeney, D., Polcyn, N. et al., "Impact of Substrate Geometry on Automotive TWC Gasoline (Three Way Catalyst) Performance," SAE Technical Paper 2017-01-0923, 2017, https://doi.org/10.4271/2017-01-0923.
Pages:
9
Abstract:
Tightening global emissions standards are driving automotive Original Equipment Manufacturer’s (OEM’s) to utilize Three Way Catalyst (TWC) aftertreatment systems that can perform with greater efficiency and greater measured control of Precious Group Metals (PGM) use. At the same time, TWC aftertreatment systems minimize exhaust system pressure drops. This study will determine the influence of catalyst substrate cell geometry on emission and PGM usage. Additionally, a study of lightoff and backpressure comparisons will be conducted. The two substrate configurations used are hex/750cpsi and square/750cpsi.
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