A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An exhaust gas purification filter (1) is used so as to support a NOx purification catalyst. The exhaust gas purification filter (1) includes a honeycomb structure portion (10) and a plug portion (16). The honeycomb structure portion (10) includes a partition wall (12) and cells (13). Numerous pores are formed in the partition wall (12). The cells (13) are partitioned by the partition walls and form a flow path for an exhaust gas. The plug portion (16) alternately seals an inflow end surface (14) or an outflow end surface (15) for the exhaust gas in the cells (13). The partition wall (12) has a gas permeability coefficient that is equal to or greater than 0.35 × 10-12 m2, a pore volume ratio of pore diameters of 9 µm or less that is equal to or less than 25%, and an average pore diameter that is equal to or greater than 12 µm.
An exhaust gas purification filter (1) is used so as to support a NOx purification catalyst. The exhaust gas purification filter (1) includes a honeycomb structure portion (10) and a plug portion (16). The honeycomb structure portion (10) includes a partition wall (12) and cells (13). Numerous pores are formed in the partition wall (12). The cells (13) are partitioned by the partition walls and form a flow path for an exhaust gas. The plug portion (16) alternately seals an inflow end surface (14) or an outflow end surface (15) for the exhaust gas in the cells (13). The partition wall (12) has a gas permeability coefficient that is equal to or greater than 0.35 × 10-12 m2, a pore volume ratio of pore diameters of 9 µm or less that is equal to or less than 25%, and an average pore diameter that is equal to or greater than 12 µm.
EXHAUST GAS PURIFICATION FILTER
ABGASREINIGUNGSFILTER
FILTRE DE PURIFICATION DE GAZ D'ÉCHAPPEMENT
KAYAMA HIROAKI (author)
2023-11-15
Patent
Electronic Resource
English
IPC:
B01D
SEPARATION
,
Trennen
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
C04B
Kalk
,
LIME
/
F01N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
,
Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein