Device and method for removing sooty particulate from exhaust gases from combustion processes

Allansson, Ronny; Andreasson, Anders Klas; Chandler, Guy Richard and Warren, James Patrick (2001). Device and method for removing sooty particulate from exhaust gases from combustion processes. Johnson Matthey Public Limited Company, WO/2001/004466A1.

URL: http://www.freepatentsonline.com/WO2001004466A1.ht...

Abstract

A canister (1) contains a catalyst for generating NO2 and a filter (8) for trapping PM, e.g. from diesel engines. The filter is thermally isolated from the canister, and preferably is surrounded by an annular monolith comprising the NO oxidation catalyst or a SCR catalyst. The invention facilitates the combustion of PM even at low exhaust gas temperatures, in a compact device.

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