BR9903053A - Catalisador para a redução de óxidos de nitrogênio na oxidação e redução de atmosferas - Google Patents
Catalisador para a redução de óxidos de nitrogênio na oxidação e redução de atmosferasInfo
- Publication number
- BR9903053A BR9903053A BR9903053-5A BR9903053A BR9903053A BR 9903053 A BR9903053 A BR 9903053A BR 9903053 A BR9903053 A BR 9903053A BR 9903053 A BR9903053 A BR 9903053A
- Authority
- BR
- Brazil
- Prior art keywords
- reduction
- catalyst
- nitrogen oxides
- oxidation
- atmospheres
- Prior art date
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title abstract 8
- 239000003054 catalyst Substances 0.000 title abstract 4
- 230000003647 oxidation Effects 0.000 title abstract 3
- 238000007254 oxidation reaction Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052741 iridium Inorganic materials 0.000 abstract 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 abstract 2
- 229910021536 Zeolite Inorganic materials 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 239000010457 zeolite Substances 0.000 abstract 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
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
-
- 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
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/46—Ruthenium, rhodium, osmium or iridium
-
- 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
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/46—Ruthenium, rhodium, osmium or iridium
- B01J23/468—Iridium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1028—Iridium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/50—Zeolites
- B01D2255/504—ZSM 5 zeolites
-
- 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
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/391—Physical properties of the active metal ingredient
- B01J35/393—Metal or metal oxide crystallite size
-
- 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)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Patente de Invenção: <B>"CATALISADOR PARA A REDUçãO DE óXIDOS DE NITROGêNIO NA OXIDAçãO E REDUçãO DE ATMOSFERAS"<D>. A invenção refere-se a um catalisador para a redução dos óxidos de de nitrogênio na oxidação e redução de atmosferas que contêm irídio em um material suporte. O bióxido de silício ou um zeólito desalumizado na forma H ácida com um módulo de mais do que 20, preferivelmente mais do que 100, ou misturas deles são usados como materiais suportes. O irídio é depositado nas superfícies externas desses materiais suportes com tamanhos médios de partícula entre 10 e 30 nm. O catalisador é particularmente adequado para o tratamento de gases de exaustão de motores a gasolina de queima pobre ou de motores a diesel.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19829976 | 1998-07-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9903053A true BR9903053A (pt) | 2000-05-09 |
Family
ID=7873014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9903053-5A BR9903053A (pt) | 1998-07-04 | 1999-07-02 | Catalisador para a redução de óxidos de nitrogênio na oxidação e redução de atmosferas |
Country Status (11)
Country | Link |
---|---|
US (1) | US6534439B2 (pt) |
EP (1) | EP0968754A1 (pt) |
JP (1) | JP2000033267A (pt) |
KR (1) | KR20000011434A (pt) |
AR (1) | AR019182A1 (pt) |
AU (1) | AU3795799A (pt) |
BR (1) | BR9903053A (pt) |
CA (1) | CA2276929A1 (pt) |
DE (1) | DE19930494A1 (pt) |
TR (1) | TR199901534A2 (pt) |
ZA (1) | ZA994298B (pt) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1129764B1 (de) * | 2000-03-01 | 2005-10-26 | Umicore AG & Co. KG | Katalysator für die Reinigung der Abgase von Dieselmotoren und Verfahren zu seiner Herstellung |
KR100610015B1 (ko) * | 2004-09-10 | 2006-08-09 | 삼성전자주식회사 | 오픈 비트라인 셀 구조의 번인 테스트 스킴을 갖는 메모리장치 및 그 방법 |
KR101043080B1 (ko) * | 2004-12-23 | 2011-06-21 | 주식회사 포스코 | 조질 압연기 지지롤 폭 마크 저감장치 |
DE102005022209B4 (de) * | 2005-05-13 | 2008-01-03 | Audi Ag | Verfahren zur Regeneration eines einer Brennkraftmaschine, insbesondere einer Diesel-Brennkraftmaschine, nachgeschalteten Stickoxid-Speicherkatalysators |
JP5076192B2 (ja) * | 2007-01-12 | 2012-11-21 | 国立大学法人 岡山大学 | 未燃カーボンを用いてディーゼルエンジン排ガス中の窒素酸化物を浄化するための触媒と方法 |
FR2950821B1 (fr) * | 2009-10-07 | 2013-05-31 | Rhodia Operations | Composition catalytique pour le traitement d'un gaz pour la conversion des oxydes d'azote en azote et procede utilisant cette composition |
JP6815783B2 (ja) * | 2016-07-29 | 2021-01-20 | 三菱重工業株式会社 | 脱硝触媒の製造方法 |
KR102382083B1 (ko) * | 2020-02-27 | 2022-04-01 | 한국화학연구원 | 염기 용액을 이용한 무기물 내의 염소 제거 방법 및 이 방법으로 제조된 질소산화물 선택적 환원용 촉매 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0455491A3 (en) * | 1990-05-03 | 1992-03-18 | Sakai Chemical Industry Co., Ltd., | Catalysts and methods for denitrization |
JP3300054B2 (ja) * | 1992-09-30 | 2002-07-08 | マツダ株式会社 | 排気ガス浄化用触媒 |
EP0642827B1 (en) * | 1993-02-16 | 1998-04-29 | Mitsubishi Jukogyo Kabushiki Kaisha | Exhaust gas cleaning catalyst |
EP0633052B1 (en) | 1993-07-09 | 1997-04-23 | N.E. Chemcat Corporation | Catalyst for purifying exhaust gas and method for purifying exhaust gas |
JP3129366B2 (ja) * | 1993-09-14 | 2001-01-29 | 三菱重工業株式会社 | 脱硝触媒及び排気ガスの処理方法 |
JP3129377B2 (ja) * | 1994-08-12 | 2001-01-29 | 三菱重工業株式会社 | 排気ガス浄化用触媒 |
DE4436890A1 (de) * | 1994-10-15 | 1996-04-18 | Degussa | Verfahren zur gleichzeitigen Verminderung der im Abgas einer Verbrennungskraftmaschine enthaltenen Kohlenwasserstoffe, Kohlenmonoxid und Stickoxide |
FR2729090A1 (fr) * | 1995-01-11 | 1996-07-12 | Inst Francais Du Petrole | Catalyseurs de reduction selective des oxydes d'azote en azote en milieu oxydant, procede de preparation et utilisation |
EP0730900A1 (en) * | 1995-03-09 | 1996-09-11 | N.E. Chemcat Corporation | Method of purifying exhaust gas from internal combustion engine |
JPH08309185A (ja) | 1995-05-18 | 1996-11-26 | N E Chemcat Corp | 排気ガス浄化用触媒および排気ガスの浄化方法 |
US6214307B1 (en) | 1996-04-11 | 2001-04-10 | Ict Co., Ltd. | Exhaust gas purifying catalyst and exhaust gas purifying method |
DE19614540A1 (de) * | 1996-04-12 | 1997-10-16 | Degussa | Dieselkatalysator |
-
1999
- 1999-06-29 AR ARP990103138A patent/AR019182A1/es not_active Application Discontinuation
- 1999-06-30 ZA ZA9904298A patent/ZA994298B/xx unknown
- 1999-07-01 EP EP99112537A patent/EP0968754A1/de not_active Withdrawn
- 1999-07-01 TR TR1999/01534A patent/TR199901534A2/xx unknown
- 1999-07-01 US US09/345,787 patent/US6534439B2/en not_active Expired - Fee Related
- 1999-07-01 DE DE19930494A patent/DE19930494A1/de not_active Withdrawn
- 1999-07-02 AU AU37957/99A patent/AU3795799A/en not_active Abandoned
- 1999-07-02 CA CA002276929A patent/CA2276929A1/en not_active Abandoned
- 1999-07-02 KR KR1019990026522A patent/KR20000011434A/ko not_active Application Discontinuation
- 1999-07-02 BR BR9903053-5A patent/BR9903053A/pt not_active IP Right Cessation
- 1999-07-05 JP JP11190669A patent/JP2000033267A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
AR019182A1 (es) | 2001-12-26 |
DE19930494A1 (de) | 2000-02-03 |
ZA994298B (en) | 2000-01-10 |
TR199901534A2 (xx) | 2000-02-21 |
CA2276929A1 (en) | 2000-01-04 |
KR20000011434A (ko) | 2000-02-25 |
JP2000033267A (ja) | 2000-02-02 |
US6534439B2 (en) | 2003-03-18 |
US20010053341A1 (en) | 2001-12-20 |
AU3795799A (en) | 2000-01-20 |
EP0968754A1 (de) | 2000-01-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A4A,5A, 6A,7A, E 8A ANUIDADE(S). |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1912 DE 28/08/2007. |
|
B15K | Others concerning applications: alteration of classification |
Free format text: PROCEDIMENTO AUTOMATICO DE RECLASSIFICACAO. AS CLASSIFICACOES IPC ANTERIORES ERAM: B01J 23/46; B01J 103/76. Ipc: B01D 53/94 (2006.01), B01J 23/46 (2006.01), B01J 3 Ipc: B01D 53/94 (2006.01), B01J 23/46 (2006.01), B01J 3 |