New Catalyst Substrate Innovation for Achieving RDE and SULEV 30 Emission Legislation

Authors

Dipl.-Ing. R. Brück, Dipl.-Ing. P. Hirth, Dipl.-Ing. B. Hu, Dipl.-Ing. C. Schorn, Continental Emitec GmbH, Lohmar

Year

2016

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 799

Summary

Exhaust emissions for passenger cars and trucks have been reduced considerably over the past decade. The rising requirements have been met by means of catalytic converter systems located close to the engine and progressive catalytic converters in both modern gasoline engines and diesel engines. Thanks to the development of turbulent-acting catalytic converter structures, it was also possible to make the catalytic converter systems smaller and more compact. The introduction of the RDE (Real Driving Emissions) passenger car legislation and of the stricter In-Use- Compliance regulation for commercial vehicles will require exhaust-gas aftertreatment to operate over the entire engine map in the future. As a result, catalytic converters must be designed for low-load and high-load operation in such a way that very high conversion rates can be achieved without a major increase in pressure loss. In the U.S.A. (California, for example), additional requirements are being formulated, such as a further reduction in the NOx limit values by 90% within the SULEV legislation or the commercial vehicle limit values currently under discussion for California from 2020 onward.