Patent ID: 8961886
Filing Date: 2015-02-24
Classification: B01D,B01J,C04B,F01N

Abstract:
1. A honeycomb structure comprising: at least one honeycomb unit having a plurality of through holes defined by partition walls extending along a longitudinal direction of the honeycomb unit, the honeycomb unit comprising: zeolite ion-exchanged with Cu and/or Fe to reduce NO an inorganic binder; and a noble metal catalyst supported only in a region of the honeycomb unit, the region extending from one end portion of the honeycomb unit in the longitudinal direction over approximately 1.5% or more to approximately 20% or less of an overall length of the honeycomb unit in the longitudinal direction, the region being provided on a downstream side of the honeycomb unit in a direction in which an exhaust gas is configured to flow through the honeycomb unit.