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...

Full description

Saved in:
Bibliographic Details
Main Authors FEGER, MATTHIAS, KREUZER, THOMAS, WOLF, ANKE, LINDNER, DIETER, ROESCH, MARTIN, LOX, EGBERT
Format Patent
LanguageEnglish
French
Published 29.05.2012
Subjects
BLASTING
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
STEAM ENGINES
THEIR RELEVANT APPARATUS
TRANSPORTING
WEAPONS
Online AccessGet full text

Cover

More Information
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