JP6716067B2 - ディーゼル用酸化触媒 - Google Patents
ディーゼル用酸化触媒 Download PDFInfo
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- JP6716067B2 JP6716067B2 JP2014166914A JP2014166914A JP6716067B2 JP 6716067 B2 JP6716067 B2 JP 6716067B2 JP 2014166914 A JP2014166914 A JP 2014166914A JP 2014166914 A JP2014166914 A JP 2014166914A JP 6716067 B2 JP6716067 B2 JP 6716067B2
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- 239000003054 catalyst Substances 0.000 title claims description 317
- 230000003647 oxidation Effects 0.000 title claims description 123
- 238000007254 oxidation reaction Methods 0.000 title claims description 123
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 66
- 238000011144 upstream manufacturing Methods 0.000 claims description 55
- 229910052697 platinum Inorganic materials 0.000 claims description 27
- 229910052763 palladium Inorganic materials 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 21
- 239000004071 soot Substances 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 7
- 239000010410 layer Substances 0.000 description 172
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 27
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 26
- 229930195733 hydrocarbon Natural products 0.000 description 22
- 150000002430 hydrocarbons Chemical class 0.000 description 22
- 239000004215 Carbon black (E152) Substances 0.000 description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 18
- 229910002091 carbon monoxide Inorganic materials 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000001737 promoting effect Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 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 2
- 238000001035 drying Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- 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
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
- F01N3/106—Auxiliary oxidation catalysts
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- 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
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- 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
- B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
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- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
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- B01J35/396—Distribution of the active metal ingredient
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/103—Oxidation catalysts for HC and CO only
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
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- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
- F01N2510/068—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings
- F01N2510/0682—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings having a discontinuous, uneven or partially overlapping coating of catalytic material, e.g. higher amount of material upstream than downstream or vice versa
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- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
- F01N2510/068—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings
- F01N2510/0684—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings having more than one coating layer, e.g. multi-layered coatings
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
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- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Processes For Solid Components From Exhaust (AREA)
Description
4 酸化触媒
5 上流側触媒層
6 下流側内触媒層
7 下流側外触媒層
9 基材
Claims (3)
- PtとPdとのうち少なくとも1つが含まれている三層の触媒層から構成されるディーゼル用酸化触媒において、
排気の流れ方向に対して上流側触媒層と下流側外触媒層と下流側内触媒層とに分割され、
前記上流側触媒層と前記下流側内触媒層とにPtとPdとが含まれるとともに、前記下流側外触媒層にPtのみが触媒金属として含まれ、
酸化効率が排気のNOの量に応じた所定値以上になるように、前記下流側外触媒層に含まれるPtの量が設定され、
排気の流れ方向における前記下流側外触媒層の長さが排気の流れ方向におけるディーゼル用酸化触媒の全長の半分以上になるように構成され、
前記上流側触媒層に含まれるPtとPdの割合が1:2から4:1の範囲内であり、かつ、白金量が0.1g/Lから2.4g/Lの範囲内であるように構成される
ディーゼル用酸化触媒。 - 前記三層の触媒層が基材に構成されており、
前記基材に排気の流れ方向に対して六角形の断面を有する貫通孔が形成されている
請求項1に記載のディーゼル用酸化触媒。 - 前記三層の触媒層が基材に構成されており、
前記基材がパーシャルタイプのスートフィルタである
請求項1に記載のディーゼル用酸化触媒。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014166914A JP6716067B2 (ja) | 2014-08-19 | 2014-08-19 | ディーゼル用酸化触媒 |
PCT/JP2015/072470 WO2016027698A1 (ja) | 2014-08-19 | 2015-08-07 | ディーゼル用酸化触媒 |
CN201580044059.3A CN106573229B (zh) | 2014-08-19 | 2015-08-07 | 柴油机用氧化催化剂 |
EP15833235.3A EP3184169B1 (en) | 2014-08-19 | 2015-08-07 | Oxidation catalyst for diesel engines |
KR1020177006146A KR101990711B1 (ko) | 2014-08-19 | 2015-08-07 | 디젤용 산화 촉매 |
US15/505,436 US10562013B2 (en) | 2014-08-19 | 2015-08-07 | Oxidation catalyst for diesel engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014166914A JP6716067B2 (ja) | 2014-08-19 | 2014-08-19 | ディーゼル用酸化触媒 |
Publications (2)
Publication Number | Publication Date |
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JP2016043276A JP2016043276A (ja) | 2016-04-04 |
JP6716067B2 true JP6716067B2 (ja) | 2020-07-01 |
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JP2014166914A Active JP6716067B2 (ja) | 2014-08-19 | 2014-08-19 | ディーゼル用酸化触媒 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10562013B2 (ja) |
EP (1) | EP3184169B1 (ja) |
JP (1) | JP6716067B2 (ja) |
KR (1) | KR101990711B1 (ja) |
CN (1) | CN106573229B (ja) |
WO (1) | WO2016027698A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201315892D0 (en) | 2013-07-31 | 2013-10-23 | Johnson Matthey Plc | Zoned diesel oxidation catalyst |
JP6753179B2 (ja) * | 2016-07-08 | 2020-09-09 | いすゞ自動車株式会社 | 酸化触媒、及び、排気ガス浄化システム |
JP6990606B2 (ja) * | 2018-03-05 | 2022-01-12 | エヌ・イーケムキャット株式会社 | 排ガス処理部材 |
JP7430833B1 (ja) | 2023-03-17 | 2024-02-13 | 株式会社キャタラー | 排ガス浄化用触媒 |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE10020170C1 (de) | 2000-04-25 | 2001-09-06 | Emitec Emissionstechnologie | Verfahren zum Entfernen von Rußpartikeln aus einem Abgas und zugehöriges Auffangelement |
US6087298A (en) * | 1996-05-14 | 2000-07-11 | Engelhard Corporation | Exhaust gas treatment system |
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EP3184169A1 (en) | 2017-06-28 |
JP2016043276A (ja) | 2016-04-04 |
KR101990711B1 (ko) | 2019-06-18 |
US10562013B2 (en) | 2020-02-18 |
CN106573229A (zh) | 2017-04-19 |
WO2016027698A1 (ja) | 2016-02-25 |
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EP3184169B1 (en) | 2020-03-25 |
EP3184169A4 (en) | 2018-04-11 |
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