| abstract |
According to the present invention, a catalyst carrier and a catalyst can be supported so that pressure loss does not increase according to the ratio and porosity of pores having a pore diameter of 10 μm or less with respect to the total pores, and the catalyst function is sufficiently achieved. An object of the present invention is to provide a honeycomb structure that can be used, and in the honeycomb structure of the present invention, any one end of a plurality of cells penetrating in the longitudinal direction across a wall is sealed. A honeycomb structure in which a plurality of porous ceramic members are bonded via an adhesive layer and a catalyst support layer is attached to the wall portion, and the pore diameter is 10 μm or less with respect to the total pore volume of the porous ceramic member X 1 (%), the porosity is Y 1 (%), and the weight of the catalyst support layer is Z 1 (g / l). These X 1 , Y 1 and Z 1 are: Meet the following formulas (1) and (2) And features. X 1 ≦ 20-Z 1/ 10 ··· (1) Y 1 ≧ 35 + 7Z 1/ 40 ··· (2) (However, 20 ≦ Z 1 ≦ 150) |