CN112512687B - 废气净化催化剂及其制造方法 - Google Patents

废气净化催化剂及其制造方法 Download PDF

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Publication number: CN112512687B
Authority: CN; China
Prior art keywords: exhaust gas; region; catalyst; pore; pore diameter
Prior art date: 2018-11-28
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Active

Application number

CN201980051093.1A

Other languages

English (en)

Chinese (zh)

Other versions

CN112512687A (zh

Inventor

城取万阳

高桥祯宪

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

NE Chemcat Corp

Original Assignee

NE Chemcat Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2018-11-28

Filing date

2019-08-16

Publication date

2023-09-22

2019-08-16 Application filed by NE Chemcat Corp filed Critical NE Chemcat Corp

2021-03-16 Publication of CN112512687A publication Critical patent/CN112512687A/zh

2023-09-22 Application granted granted Critical

2023-09-22 Publication of CN112512687B publication Critical patent/CN112512687B/zh

Status Active legal-status Critical Current

2039-08-16 Anticipated expiration legal-status Critical

Links

239000003054 catalyst Substances 0.000 title claims abstract description 268
238000004519 manufacturing process Methods 0.000 title claims description 13
239000011148 porous material Substances 0.000 claims abstract description 164
238000005192 partition Methods 0.000 claims abstract description 84
239000000758 substrate Substances 0.000 claims abstract description 50
238000009826 distribution Methods 0.000 claims abstract description 42
238000002485 combustion reaction Methods 0.000 claims abstract description 16
239000002002 slurry Substances 0.000 claims description 81
239000000463 material Substances 0.000 claims description 28
239000003502 gasoline Substances 0.000 claims description 12
239000007789 gas Substances 0.000 description 184
MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 25
KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 24
239000010948 rhodium Substances 0.000 description 24
229910052751 metal Inorganic materials 0.000 description 23
239000002184 metal Substances 0.000 description 23
239000013618 particulate matter Substances 0.000 description 23
238000000746 purification Methods 0.000 description 21
238000000034 method Methods 0.000 description 20
239000004071 soot Substances 0.000 description 19
239000002245 particle Substances 0.000 description 17
BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 16
239000000843 powder Substances 0.000 description 16
238000010304 firing Methods 0.000 description 13
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 11
239000011248 coating agent Substances 0.000 description 11
238000000576 coating method Methods 0.000 description 11
230000000052 comparative effect Effects 0.000 description 11
239000002131 composite material Substances 0.000 description 11
239000001301 oxygen Substances 0.000 description 11
229910052760 oxygen Inorganic materials 0.000 description 11
GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 10
UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
229910002091 carbon monoxide Inorganic materials 0.000 description 9
MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 7
238000001035 drying Methods 0.000 description 7
229910052703 rhodium Inorganic materials 0.000 description 7
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
239000000446 fuel Substances 0.000 description 6
229930195733 hydrocarbon Natural products 0.000 description 6
150000002430 hydrocarbons Chemical class 0.000 description 6
150000002739 metals Chemical class 0.000 description 6
230000010718 Oxidation Activity Effects 0.000 description 5
230000010757 Reduction Activity Effects 0.000 description 5
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
230000015572 biosynthetic process Effects 0.000 description 5
238000005259 measurement Methods 0.000 description 5
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
229910052753 mercury Inorganic materials 0.000 description 5
229910052697 platinum Inorganic materials 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
239000004215 Carbon black (E152) Substances 0.000 description 4
229910000420 cerium oxide Inorganic materials 0.000 description 4
238000005470 impregnation Methods 0.000 description 4
230000006872 improvement Effects 0.000 description 4
239000002923 metal particle Substances 0.000 description 4
239000000203 mixture Substances 0.000 description 4
BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 4
RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 4
229910052763 palladium Inorganic materials 0.000 description 4
238000002459 porosimetry Methods 0.000 description 4
MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 4
239000007787 solid Substances 0.000 description 4
239000011232 storage material Substances 0.000 description 4
238000012360 testing method Methods 0.000 description 4
239000004408 titanium dioxide Substances 0.000 description 4
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
239000007864 aqueous solution Substances 0.000 description 3
ZUDYPQRUOYEARG-UHFFFAOYSA-L barium(2+);dihydroxide;octahydrate Chemical compound O.O.O.O.O.O.O.O.[OH-].[OH-].[Ba+2] ZUDYPQRUOYEARG-UHFFFAOYSA-L 0.000 description 3
238000007599 discharging Methods 0.000 description 3
FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 description 3
229910017604 nitric acid Inorganic materials 0.000 description 3
230000008569 process Effects 0.000 description 3
230000009467 reduction Effects 0.000 description 3
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
229910052784 alkaline earth metal Inorganic materials 0.000 description 2
229910052878 cordierite Inorganic materials 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
230000000694 effects Effects 0.000 description 2
238000011156 evaluation Methods 0.000 description 2
239000003779 heat-resistant material Substances 0.000 description 2
238000002347 injection Methods 0.000 description 2
239000007924 injection Substances 0.000 description 2
150000002484 inorganic compounds Chemical class 0.000 description 2
229910010272 inorganic material Inorganic materials 0.000 description 2
229910052741 iridium Inorganic materials 0.000 description 2
GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
229910052746 lanthanum Inorganic materials 0.000 description 2
FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
229910052762 osmium Inorganic materials 0.000 description 2
SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 2
230000003647 oxidation Effects 0.000 description 2
238000007254 oxidation reaction Methods 0.000 description 2
230000000704 physical effect Effects 0.000 description 2
-1 platinum group metals Chemical class 0.000 description 2
238000002360 preparation method Methods 0.000 description 2
238000012545 processing Methods 0.000 description 2
229910052761 rare earth metal Inorganic materials 0.000 description 2
229910052707 ruthenium Inorganic materials 0.000 description 2
235000012239 silicon dioxide Nutrition 0.000 description 2
239000000377 silicon dioxide Substances 0.000 description 2
229910052814 silicon oxide Inorganic materials 0.000 description 2
239000006104 solid solution Substances 0.000 description 2
239000000243 solution Substances 0.000 description 2
239000002904 solvent Substances 0.000 description 2
230000001629 suppression Effects 0.000 description 2
230000002195 synergetic effect Effects 0.000 description 2
OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
229910052723 transition metal Inorganic materials 0.000 description 2
229910052727 yttrium Inorganic materials 0.000 description 2
VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
229910001928 zirconium oxide Inorganic materials 0.000 description 2
229910000505 Al2TiO5 Inorganic materials 0.000 description 1
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
230000001133 acceleration Effects 0.000 description 1
238000004364 calculation method Methods 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
229910002092 carbon dioxide Inorganic materials 0.000 description 1
239000001569 carbon dioxide Substances 0.000 description 1
230000003197 catalytic effect Effects 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
238000007796 conventional method Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000000151 deposition Methods 0.000 description 1
230000006866 deterioration Effects 0.000 description 1
KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 1
239000002737 fuel gas Substances 0.000 description 1
238000005342 ion exchange Methods 0.000 description 1
238000011068 loading method Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
229910052863 mullite Inorganic materials 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
HBEQXAKJSGXAIQ-UHFFFAOYSA-N oxopalladium Chemical compound [Pd]=O HBEQXAKJSGXAIQ-UHFFFAOYSA-N 0.000 description 1
229910003445 palladium oxide Inorganic materials 0.000 description 1
GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 description 1
230000035515 penetration Effects 0.000 description 1
AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 1
239000011369 resultant mixture Substances 0.000 description 1
VXNYVYJABGOSBX-UHFFFAOYSA-N rhodium(3+);trinitrate Chemical compound [Rh+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VXNYVYJABGOSBX-UHFFFAOYSA-N 0.000 description 1
230000000630 rising effect Effects 0.000 description 1
HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
229910001220 stainless steel Inorganic materials 0.000 description 1
239000010935 stainless steel Substances 0.000 description 1

Classifications

- 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
- 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
- B01J23/63—Platinum group metals with rare earths or actinides
- 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
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- 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
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- 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
- F01N3/02—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
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- 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
- F01N3/24—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

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Materials Engineering (AREA)
Organic Chemistry (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
Health & Medical Sciences (AREA)
General Engineering & Computer Science (AREA)
Biomedical Technology (AREA)
Environmental & Geological Engineering (AREA)
Analytical Chemistry (AREA)
General Chemical & Material Sciences (AREA)
Oil, Petroleum & Natural Gas (AREA)
Toxicology (AREA)
Catalysts (AREA)
Exhaust Gas Treatment By Means Of Catalyst (AREA)
Exhaust Gas After Treatment (AREA)
Processes For Solid Components From Exhaust (AREA)

CN201980051093.1A 2018-11-28 2019-08-16 废气净化催化剂及其制造方法 Active CN112512687B (zh)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP2018222097		2018-11-28
JP2018-222097		2018-11-28
PCT/JP2019/032177 WO2020110379A1 (ja)	2018-11-28	2019-08-16	排ガス浄化触媒及びその製造方法

Publications (2)

Publication Number	Publication Date
CN112512687A CN112512687A (zh)	2021-03-16
CN112512687B true CN112512687B (zh)	2023-09-22

Family

ID=70852794

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CN201980051093.1A Active CN112512687B (zh)	2018-11-28	2019-08-16	废气净化催化剂及其制造方法

Country Status (3)

Country	Link
JP (1)	JP7319293B2 (ja)
CN (1)	CN112512687B (ja)
WO (1)	WO2020110379A1 (ja)

Citations (6)

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CN102802794A (zh) *	2009-04-17	2012-11-28	巴斯夫公司	多区段催化剂复合物
CN204502603U (zh) *	2014-03-18	2015-07-29	日本碍子株式会社	废气净化装置
CN104812462A (zh) *	2012-12-03	2015-07-29	丰田自动车株式会社	排气净化过滤器
CN107073465A (zh) *	2014-10-16	2017-08-18	株式会社科特拉	废气净化用催化剂
CN107073396A (zh) *	2014-10-17	2017-08-18	株式会社科特拉	废气净化装置
JP6386697B1 (ja) *	2017-03-23	2018-09-05	株式会社キャタラー	排ガス浄化用触媒

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EP2158956B1 (en) *	2007-04-27	2014-10-08	NGK Insulators, Ltd.	Honeycomb filter
JP2009160547A (ja) *	2008-01-09	2009-07-23	Toyota Motor Corp	排ガス浄化用触媒とその製造方法
JP2010167366A (ja) *	2009-01-22	2010-08-05	Ngk Insulators Ltd	ハニカム触媒体
EP3254759B1 (en) *	2015-02-17	2019-04-03	Cataler Corporation	Exhaust gas purification catalyst
JP6738185B2 (ja) *	2016-04-07	2020-08-12	株式会社キャタラー	排ガス浄化装置

2019
- 2019-08-16 WO PCT/JP2019/032177 patent/WO2020110379A1/ja active Application Filing
- 2019-08-16 CN CN201980051093.1A patent/CN112512687B/zh active Active
- 2019-08-16 JP JP2020558092A patent/JP7319293B2/ja active Active

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN102802794A (zh) *	2009-04-17	2012-11-28	巴斯夫公司	多区段催化剂复合物
CN104812462A (zh) *	2012-12-03	2015-07-29	丰田自动车株式会社	排气净化过滤器
CN204502603U (zh) *	2014-03-18	2015-07-29	日本碍子株式会社	废气净化装置
CN107073465A (zh) *	2014-10-16	2017-08-18	株式会社科特拉	废气净化用催化剂
CN107073396A (zh) *	2014-10-17	2017-08-18	株式会社科特拉	废气净化装置
JP6386697B1 (ja) *	2017-03-23	2018-09-05	株式会社キャタラー	排ガス浄化用触媒

Also Published As

Publication number	Publication date
CN112512687A (zh)	2021-03-16
JP7319293B2 (ja)	2023-08-01
WO2020110379A1 (ja)	2020-06-04
JPWO2020110379A1 (ja)	2021-10-21

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2023-09-22	GR01	Patent grant
2023-09-22	GR01	Patent grant

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