US 2011/0237425 A1 · ZEOLITE HONEYCOMB STRUCTURE

Abstract

The zeolite honeycomb structure is constituted of a zeolite raw material containing zeolite particles 32, noble metal loaded catalyst carriers 34 containing a noble metal loaded onto catalyst carriers, and an inorganic binding material 33 in a honeycomb shape. An average particle diameter of the noble metal loaded catalyst carriers 34 is ten or more times an average particle diameter of the zeolite particles 32. Moreover, the noble metal loaded catalyst carriers are contained in an amount corresponding to a volume ratio which is from 5 to 25 vol % with respect to 100 vol % of the zeolite particles, and the noble metal is loaded onto the noble metal loaded catalyst carriers in an amount corresponding to a mass ratio which is from 0.2 to 2.0 mass % with respect to 100 mass % of the zeolite particles in the zeolite honeycomb structure 100.

Claims17

Dependent claims

A zeolite honeycomb structure, comprising:

a fired article obtained by firing a formed article formed by extruding a zeolite raw material containing zeolite particles, noble metal loaded catalyst carriers containing a noble metal loaded onto catalyst carriers, and an inorganic binding material in a honeycomb shape including partition walls disposed to form a plurality of cells which become through channels of a fluid and extend from one end face to the other end face,
wherein an average particle diameter of the noble metal loaded catalyst carriers is ten or more times an average particle diameter of the zeolite particles,
the noble metal loaded catalyst carriers are contained in an amount corresponding to a volume ratio which is from 5 to 25 vol % with respect to 100 vol % of the zeolite particles, and the noble metal is loaded onto the noble metal loaded catalyst carriers in an amount corresponding to a mass ratio which is from 0.2 to 2.0 mass % with respect to 100 mass % of the zeolite particles.

Dependencies are inferred from the claim text.

Zeolite honeycomb structure

Life of this patent

Zeolite honeycomb structure

Life of this patent

Abstract

Claims17