RECP - A Reactor Designed to Test the Effect of a Catalyst on Soot Oxidation in a Diesel Particulate Filter

摘要

A new reactor designed to test soot combustion on a filter coated with an oxidation catalyst is described.It is designed to achieve screening investigations of catalysts in realistic conditions,i.e.,close to those prevailing in a diesel particulate filter (DPF).In a DPF a soot layer is formed at the surface of a porous wall (filtration area) which may or may not be covered with a catalytic layer.In this new setup,the soot is deposited on a sample of a DPF which can be easily impregnated with oxidation catalysts.A model soot (commercial carbon black) is used for the investigation,and different procedures for the soot deposit on the filter are tested.