Axially Resolved Performance of Cu-Zeolite SCR Catalysts

Paper #:
  • 2012-01-1084

Published:
  • 2012-04-16
DOI:
  • 10.4271/2012-01-1084
Citation:
Henry, C., Kamasamudram, K., Currier, N., Yezerets, A. et al., "Axially Resolved Performance of Cu-Zeolite SCR Catalysts," SAE Int. J. Engines 5(3):975-984, 2012, https://doi.org/10.4271/2012-01-1084.
Pages:
10
Abstract:
In this work, an alternative method is proposed and validated for quantifying the axial performance of a state-of-the-art Cu zeolite SCR catalyst. Catalyst cores of a standard length, with varying lengths of wash-coated regions were used to axially resolve the functional performance of the SCR catalyst. This proposed method was validated by quantifying the catalyst entrance and exit effects, as well as the effect of non-uniform wash-coat loading densities. This method is less susceptible to some of the complications highlighted in the previous studies, such as flow uniformity between channels, as well as radiative heating effects, since the product gases are sampled across the entire monolith cross-section rather than through a single catalyst channel. The specific catalyst functions quantified include: NO and NH₃ oxidation, NH₃ storage capacity, as well as NOx conversion efficiency. The NOx conversion performance of the catalyst was evaluated for both the standard (NO₂/NOx=0) and fast (NO₂/NOx=0.5) SCR reactions as a function of both axial length and catalyst operating temperature.
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

Standard
1966-08-01
Technical Paper / Journal Article
2011-04-12
Technical Paper / Journal Article
2011-04-12