PM-Metalit Advanced – The Innovative Particulate Filter for Nanoparticle Reduction

Authors

Dipl.-Ing. W. Maus, Dipl.-Ing. J. Hodgson, Dipl.-Ing. C. Vorsmann, Dipl.-Ing. R. Brück, Emitec Gesellschaft für Emissionstechnologie mbH, Lohmar

Year

2010

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 716

Summary

In addition to a reduction in particle mass, future emission legislation for passenger cars (petrol and diesel) and heavy-duty vehicles will also require a reduction in particle numbers. Conventional filters that combine current levels of porosity with new, low soot-emitting engines are unable to filter nanoparticles with sufficient effectiveness due to the lack of a soot filter cake. The necessary reduction in pore size would lead to greater pressure loss. The PM Metalit Advanced represents a new generation of particulate filters for the automotive industry. Building on the proven partial-flow deep-bed concept the separation of nanoparticles in particular is improved by the application of electrostatic forces, which act as a diffusion and adhesion booster. The system is able to separate well over 90% of particles that have been charged in an electric field without any increase in backpressure. This paper describes the theoretical design, the construction and test results using the PM Metalit Advanced.

Order Members Login