Aftertreatment Systems for Heavy Duty On- and NonRoad Applications

Authors

Wilfried Müller, Ingo Lappas, Andreas Geißelmann, Umicore AG & Co. KG, Hanau

Year

2009

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 697

Summary

The North American US 2010 legislation standards as well as the European Euro 6 legislation represent a significant tightening of emission standards for particulates and nitrogen oxides (NOx). Also for nonroad applications future emission legislation, Tier 4 interim (2011+), Tier 4 final (2014+) and in Europe Euro IIIB and Euro IV will bring more stringent and demanding exhaust emission legislation. To meet those emission targets it will be necessary to reduce engine out emission as much as possible through optimisation of the engine calibration. In addition to that further reduction of particulate matter and NOx using an active exhaust aftertreatment solution will be necessary. For reduction of NOx for heavy duty and nonroad applications urea SCR is clearly the preferred technology. In this paper we will discuss the development and design of catalyst components that are capable of achieving future emission targets.

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