Improved SCR Systems for Heavy Duty Applications

Paper #:
  • 2000-01-0189

Published:
  • 2000-03-06
Citation:
Gieshoff, J., Schäfer-Sindlinger, A., Spurk, P., van den Tillaart, J. et al., "Improved SCR Systems for Heavy Duty Applications," SAE Technical Paper 2000-01-0189, 2000, https://doi.org/10.4271/2000-01-0189.
Pages:
10
Abstract:
This paper describes the function and application of the preoxidation, hydrolysis and SCR catalysts individually and as a combined system for urea SCR both in model gas and engine bench tests. Using the basic system and a non-optimized urea injection strategy 45% NOx conversion was achieved in the ESC engine test. Adding a preoxidation catalyst significantly improved the NOx conversion in the low temperature region of the engine mapping. NOx conversions over 75% can be achieved in the ESC test using this improved system. With a 50% reduced SCR catalyst volume still a NOx conversion of over 65% could be achieved. Tests after 200 hours engine aging show that the activity of the system is stable.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Article
2017-03-13
Training / Education
2017-12-18
Training / Education
2018-04-12