A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An exhaust gas purification filter 100 includes: a honeycomb structure 10 having porous ceramic partition walls 12, plugging portions 13 disposed in one side open end portions of predetermined cells 11a and in the other side open end portions of the other cells 11b, and a surface trapping layer 14 having an average pore size of 0.1 µm or more and 5 µm or less, a porosity of 50% or more and 80% or less, and a thickness of 1 µm or more and 50 µm or less. The partition walls 12 have a thickness of 0.05 mm or more and 0.18 mm or less and an average pore size of 10 µm or more and 18 µm or less, which is measured by mercury porosimetry, and the proportion of the volume of the pores having a size of twice the average pore size or more in the entire pore volume in a pore size distribution of the partition walls 12 measured by mercury porosimetry is 5% or more and 40% or less.
An exhaust gas purification filter 100 includes: a honeycomb structure 10 having porous ceramic partition walls 12, plugging portions 13 disposed in one side open end portions of predetermined cells 11a and in the other side open end portions of the other cells 11b, and a surface trapping layer 14 having an average pore size of 0.1 µm or more and 5 µm or less, a porosity of 50% or more and 80% or less, and a thickness of 1 µm or more and 50 µm or less. The partition walls 12 have a thickness of 0.05 mm or more and 0.18 mm or less and an average pore size of 10 µm or more and 18 µm or less, which is measured by mercury porosimetry, and the proportion of the volume of the pores having a size of twice the average pore size or more in the entire pore volume in a pore size distribution of the partition walls 12 measured by mercury porosimetry is 5% or more and 40% or less.
EXHAUST GAS PURIFICATION FILTER
ABGASREINIGUNGSFILTER
FILTRE DE PURIFICATION DE GAZ D'ÉCHAPPEMENT
MIYAIRI YUKIO (author)
2022-03-16
Patent
Electronic Resource
English