Development of a Novel Device to Improve Urea Evaporation, Mixing and Distribution to Enhance SCR Performance

Paper #:
  • 2010-01-1185

Published:
  • 2010-04-12
Citation:
Zhan, R., Li, W., Eakle, S., and Weber, P., "Development of a Novel Device to Improve Urea Evaporation, Mixing and Distribution to Enhance SCR Performance," SAE Technical Paper 2010-01-1185, 2010, https://doi.org/10.4271/2010-01-1185.
Pages:
10
Abstract:
A novel urea evaporation and mixing device has been developed to improve the overall performance of a urea-SCR system. The device was tested with a MY2007 Cummins ISB 6.7L diesel engine equipped with an SCR aftertreatment system. Test results show that the device effectively improved the overall NO conversion efficiency of the SCR catalyst over both steady-state and transient engine operating conditions, while NH₃ slip from the catalyst decreased.
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