JP4429756B2 - フィルタ触媒 - Google Patents
フィルタ触媒 Download PDFInfo
- Publication number
- JP4429756B2 JP4429756B2 JP2004033924A JP2004033924A JP4429756B2 JP 4429756 B2 JP4429756 B2 JP 4429756B2 JP 2004033924 A JP2004033924 A JP 2004033924A JP 2004033924 A JP2004033924 A JP 2004033924A JP 4429756 B2 JP4429756 B2 JP 4429756B2
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- Prior art keywords
- catalyst
- slurry
- filter
- pores
- carrier substrate
- Prior art date
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- Expired - Fee Related
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- 239000003054 catalyst Substances 0.000 title claims description 218
- 239000002002 slurry Substances 0.000 claims description 90
- 239000000758 substrate Substances 0.000 claims description 88
- 239000011148 porous material Substances 0.000 claims description 60
- 239000000843 powder Substances 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 23
- 238000010304 firing Methods 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 230000000052 comparative effect Effects 0.000 description 25
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 24
- 239000002585 base Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 20
- 238000010438 heat treatment Methods 0.000 description 18
- 239000007864 aqueous solution Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 210000004027 cell Anatomy 0.000 description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 6
- 229910002651 NO3 Inorganic materials 0.000 description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- 238000001238 wet grinding Methods 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 229910052809 inorganic oxide Inorganic materials 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 2
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000314 transition metal oxide Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000006255 coating slurry Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/007—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore distribution, e.g. inhomogeneous distribution of pores
- C04B38/0074—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore distribution, e.g. inhomogeneous distribution of pores expressed as porosity percentage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/58—Platinum group metals with alkali- or alkaline earth metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
- B01J37/0242—Coating followed by impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structural Engineering (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
- Filtering Materials (AREA)
Description
まず、アルミナ(Al2O3)粉末150g、水200gを秤量し、アルミナ粉末を水に投入、攪拌して分散させ、湿式ミリングを施してスラリーを調製した。アルミナ粉末全体を100wt%としたときに、1μm以下の粒径の粒子が77%となっていた。
アルミナ粉末からなるスラリーに代えて、チタニア粉末(TiO 2 )からなるスラリーを用いたこと以外は、実施例1と同様にして本実施例のフィルタ触媒を製造した。
スラリーのアルミナのコート量を75gとした以外は、実施例1と同様にして本実施例のフィルタ触媒を製造した。
アルミナ粉末150g、水200gを秤量し、アルミナ粉末を水に投入、攪拌して分散させ、湿式ミリングを施してスラリーを調製した。アルミナ粉末全体を100wt%としたときに、1μm以下の粒径の粒子が77%となっていた。
アルミナ粉末150g、水200gを秤量し、アルミナ粉末を水に投入、攪拌して分散させ、湿式ミリングを施してスラリーを調製した。アルミナ粉末全体を100wt%としたときに、1μm以下の粒径の粒子が10%となっていた。
アルミナ粉末75g、水200gを秤量し、アルミナ粉末を水に投入、攪拌して分散させ、湿式ミリングを施してスラリーを調製した。アルミナ粉末全体を100wt%としたときに、1μm以下の粒径の粒子が77%となっていた。
実施例および比較例のフィルタ触媒の細孔構造を水銀ポロシメータ(島津製作所製、商品名:オートポアー9200)を用いて測定した。測定結果を表1に示した。なお、細孔構造の測定における水銀ポロシメータの操作は、0〜200MPaの間で水銀圧入圧力を上昇させていくことで行われた。
つづいて、実施例および比較例のフィルタ触媒の圧損の測定を行った。
2…封止されたセル
3…開口したセル
Claims (2)
- 連続した細孔を有する耐熱性多孔質体よりなる触媒担体基材と、該触媒担体基材の表面上に形成されたパティキュレートを燃焼する触媒層と、を有するフィルタ触媒において、
1〜20μmの細孔を11%以上の気孔率で有することを特徴とするフィルタ触媒。 - 前記触媒層が、耐熱性酸化物粉末のスラリーを調製し、該スラリーを前記触媒担体基材にコートし、乾燥、焼成してなる担持層を有し、
該スラリーに分散した粉末の全体量を100wt%としたときに、1μm以下の粒径の耐熱性酸化物粉末が70wt%以上で含まれる請求項1記載のフィルタ触媒。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004033924A JP4429756B2 (ja) | 2004-02-10 | 2004-02-10 | フィルタ触媒 |
EP05710438A EP1723998B1 (en) | 2004-02-10 | 2005-02-10 | Filter catalyst |
US10/587,984 US7622419B2 (en) | 2004-02-10 | 2005-02-10 | Filter catalyst |
PCT/JP2005/002656 WO2005075053A1 (ja) | 2004-02-10 | 2005-02-10 | フィルタ触媒 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004033924A JP4429756B2 (ja) | 2004-02-10 | 2004-02-10 | フィルタ触媒 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005224667A JP2005224667A (ja) | 2005-08-25 |
JP4429756B2 true JP4429756B2 (ja) | 2010-03-10 |
Family
ID=34836154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004033924A Expired - Fee Related JP4429756B2 (ja) | 2004-02-10 | 2004-02-10 | フィルタ触媒 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7622419B2 (ja) |
EP (1) | EP1723998B1 (ja) |
JP (1) | JP4429756B2 (ja) |
WO (1) | WO2005075053A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2243801A1 (en) | 2009-03-03 | 2010-10-27 | Asahi Glass Company Limited | Resin substrate provided with coating layer |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5142532B2 (ja) | 2004-11-26 | 2013-02-13 | イビデン株式会社 | ハニカム構造体 |
EP1920839A4 (en) | 2005-08-31 | 2012-01-25 | Ngk Insulators Ltd | A HONEYCOMB CATALYST STRUCTURE, PREVENTIONAL SUPPORT FOR PRODUCING A HONEYCOMB CATALYST STRUCTURE, AND METHOD FOR PRODUCING THE HONEYCOMB CATALYST STRUCTURE |
US8119075B2 (en) * | 2005-11-10 | 2012-02-21 | Basf Corporation | Diesel particulate filters having ultra-thin catalyzed oxidation coatings |
JP5215634B2 (ja) * | 2007-11-07 | 2013-06-19 | 本田技研工業株式会社 | 排ガス浄化装置 |
JP4753209B2 (ja) | 2007-12-06 | 2011-08-24 | 本田技研工業株式会社 | 排ガス浄化用酸化触媒装置 |
JP2009136787A (ja) * | 2007-12-06 | 2009-06-25 | Honda Motor Co Ltd | 排ガス浄化用酸化触媒装置の製造方法 |
EP2113303B1 (en) * | 2008-04-25 | 2013-10-16 | Honda Motor Co., Ltd. | Production method of oxidation catalyst device for exhaust gas purification |
JP5519181B2 (ja) * | 2009-05-13 | 2014-06-11 | 本田技研工業株式会社 | 内燃機関の排気浄化装置 |
JP6542690B2 (ja) * | 2016-02-12 | 2019-07-10 | トヨタ自動車株式会社 | フィルタ触媒の製造方法 |
EP3673996A4 (en) * | 2017-09-21 | 2020-10-07 | Cataler Corporation | CATALYST FOR PURIFICATION OF EXHAUST GASES |
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CA1260909A (en) * | 1985-07-02 | 1989-09-26 | Koichi Saito | Exhaust gas cleaning catalyst and process for production thereof |
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-
2004
- 2004-02-10 JP JP2004033924A patent/JP4429756B2/ja not_active Expired - Fee Related
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2005
- 2005-02-10 EP EP05710438A patent/EP1723998B1/en active Active
- 2005-02-10 WO PCT/JP2005/002656 patent/WO2005075053A1/ja not_active Application Discontinuation
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2243801A1 (en) | 2009-03-03 | 2010-10-27 | Asahi Glass Company Limited | Resin substrate provided with coating layer |
Also Published As
Publication number | Publication date |
---|---|
EP1723998B1 (en) | 2012-04-18 |
US7622419B2 (en) | 2009-11-24 |
WO2005075053A1 (ja) | 2005-08-18 |
EP1723998A1 (en) | 2006-11-22 |
EP1723998A4 (en) | 2007-10-31 |
US20080025882A1 (en) | 2008-01-31 |
JP2005224667A (ja) | 2005-08-25 |
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