A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a ceramic honeycomb structure which has a lowered pressure loss and effectively catches the nano-sized PM occupying a large portion of PM particles in an exhaust gas.SOLUTION: An objective ceramic honeycomb structure has a plurality of flow channels formed by a porous barrier 2, has total pore volume of 0.70-0.80 cm3/g in the pore distribution of a barrier 2, and has in particular: 0.68-0.78 cm3/g of the pore volume of 1 μm or more; 0.65-0.75 cm3/g of that of 2 μm or more; 0.58-0.68 cm3/g of that of 5 μm or more; 0.42-0.56 cm3/g of that of 10 μm or more; 0.06-0.19 cm3/g of that of 20 μm or more; 0.03-0.10 cm3/g of that of 30 μm or more; 0.02-0.05 cm3/g of that of 50 μm or more; 0.010-0.035 cm3/g of that of 100 μm or more; and 0.020 cm3/g or less of that of 200 μm or more.SELECTED DRAWING: Figure 1
【課題】排ガス中のPM粒子の大部分を占めるナノサイズPMを有効に捕集し、圧力損失が低下したセラミックハニカム構造体の提供。【解決手段】多孔質の隔壁２により形成された多数の流路を有するセラミックハニカム構造体であって、隔壁２の細孔分布が、全細孔容積：0.70〜0.80cm3/g、1μm以上の細孔容積：0.68〜0.78cm3/g、2μm以上の細孔容積：0.65〜0.75cm3/g、5μm以上の細孔容積：0.58〜0.68cm3/g、10μm以上の細孔容積：0.42〜0.56cm3/g、20μm以上の細孔容積：0.06〜0.19cm3/g、30μm以上の細孔容積：0.03〜0.10cm3/g、50μm以上の細孔容積：0.02〜0.05cm3/g、100μm以上の細孔容積：0.010〜0.035cm3/g、200μm以上の細孔容積：0.020cm3/g以下であるセラミックハニカム構造体。【選択図】図１
To provide a ceramic honeycomb structure which has a lowered pressure loss and effectively catches the nano-sized PM occupying a large portion of PM particles in an exhaust gas.SOLUTION: An objective ceramic honeycomb structure has a plurality of flow channels formed by a porous barrier 2, has total pore volume of 0.70-0.80 cm3/g in the pore distribution of a barrier 2, and has in particular: 0.68-0.78 cm3/g of the pore volume of 1 μm or more; 0.65-0.75 cm3/g of that of 2 μm or more; 0.58-0.68 cm3/g of that of 5 μm or more; 0.42-0.56 cm3/g of that of 10 μm or more; 0.06-0.19 cm3/g of that of 20 μm or more; 0.03-0.10 cm3/g of that of 30 μm or more; 0.02-0.05 cm3/g of that of 50 μm or more; 0.010-0.035 cm3/g of that of 100 μm or more; and 0.020 cm3/g or less of that of 200 μm or more.SELECTED DRAWING: Figure 1
【課題】排ガス中のPM粒子の大部分を占めるナノサイズPMを有効に捕集し、圧力損失が低下したセラミックハニカム構造体の提供。【解決手段】多孔質の隔壁２により形成された多数の流路を有するセラミックハニカム構造体であって、隔壁２の細孔分布が、全細孔容積：0.70〜0.80cm3/g、1μm以上の細孔容積：0.68〜0.78cm3/g、2μm以上の細孔容積：0.65〜0.75cm3/g、5μm以上の細孔容積：0.58〜0.68cm3/g、10μm以上の細孔容積：0.42〜0.56cm3/g、20μm以上の細孔容積：0.06〜0.19cm3/g、30μm以上の細孔容積：0.03〜0.10cm3/g、50μm以上の細孔容積：0.02〜0.05cm3/g、100μm以上の細孔容積：0.010〜0.035cm3/g、200μm以上の細孔容積：0.020cm3/g以下であるセラミックハニカム構造体。【選択図】図１
CERAMIC HONEYCOMB STRUCTURE
セラミックハニカム構造体
SHIMIZU KENICHIRO (author)
2021-10-11
Patent
Electronic Resource
Japanese
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