A Study of the Catalytic Reduction of NOx in Diesel Exhaust

962042

10/01/1996

Event
1996 SAE International Fall Fuels and Lubricants Meeting and Exhibition
Authors Abstract
Content
Reduction of nitrogen oxides in Diesel exhaust gas is a challenging task. This paper reports results from an extensive study using Pt-based catalysts involving synthetic gas activity testing (SCAT), engine bench testing and tests on passenger cars. Preliminary SCAT work highlighted the importance of Pt-dispersion, and both SCAT and bench engine testing yielded comparable NOx conversions under steady state conditions at high HC:NOx ratios. On passenger cars in the European cycle without secondary fuel injection NOx conversion was lower than obtained in the steady state tests. Better conversion was obtained in the FTP cycle, where secondary injection was employed. Higher HC:NOx, ratios and more favourable temperature conditions which were present in the exhaust contributed to this higher conversion.
Meta TagsDetails
DOI
https://doi.org/10.4271/962042
Pages
9
Citation
Duesterdiek, T., Engeler, W., Neyer, D., Jochheim, J. et al., "A Study of the Catalytic Reduction of NOx in Diesel Exhaust," SAE Technical Paper 962042, 1996, https://doi.org/10.4271/962042.
Additional Details
Publisher
Published
Oct 1, 1996
Product Code
962042
Content Type
Technical Paper
Language
English