EXHAUST GAS CLEANING CATALYST WITH AN AXIALLY VARYING PRECIOUS METAL CONCENTRATION AND PROCESSES FOR MAKING THE CATALYST
The present invention relates to an exhaust gas cleaning catalyst comprising on a hon~eycomb carrier a catalytic coating. Said honeycomb carrier has an upstream end and a downstream end and a plurality of flow channels are running from the upstream end to the downstream end. The catalytic coating co...
Saved in:
Main Authors | , , , , , |
---|---|
Format | Patent |
Language | English French |
Published |
29.05.2012
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The present invention relates to an exhaust gas cleaning catalyst comprising on a hon~eycomb carrier a catalytic coating. Said honeycomb carrier has an upstream end and a downstream end and a plurality of flow channels are running from the upstream end to the downstream end. The catalytic coating comprises catalytically active precious metal components of which at least one component exhibits a concentration profile along the honeycomb carrier starting with a low concentration at the upstream end which in~creases along the flow channels up to a maximum value and then decreases again to the downstream end. |
---|---|
Bibliography: | Application Number: CA20052555506 |