SCRF Concept for Future Legislation
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By introducing a particle number limit in the EU Stage V non-road legislation, similar exhaust aftertreatment systems as for on-road will be used in future. Due to the variety of non-road applications, the vehicle integration of an EU Stage V exhaust aftertreatment system is a major challenge. In this study, Johnson Matthey and AVL show how the SCRF (Selective Catalytic Reduction on Filter) exhaust aftertreatment concept offers significant potential for achieving stricter emission levels and reduction of the installation space.
KeywordsParticulate Filter Selective Catalytic Reduction Diesel Particulate Filter Soot Oxidation Exhaust Aftertreatment
The authors would like to thank all colleagues at Johnson Matthey and AVL for their contribution to this paper. In particular Josef Macherhammer and Michael Pfragner from AVL for performing the experiments and providing the results from the engine test bed, and Dr. K. Arulraj from Johnson Matthey for design of the SCRF coatings.