| 摘要 |
The zeolite honeycomb structure is constituted of 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. An average particle diameter of the noble metal loaded catalyst carriers is ten or more times an average particle diameter of the zeolite particles. 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. |
