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 atmosferas

Info

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
Application number
BR9903053-5A
Other languages
English (en)
Inventor
Hans Van Den Tillaart
Juergen Leyrer
Wolfgang Strehlau
Egbert Lox
Thomas Kreuzer
Carsten Plog
Renato Andorf
Norbert Markert
Thomas Stengel
Original Assignee
Degussa
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.)
Filing date
Publication date
Application filed by Degussa filed Critical Degussa
Publication of BR9903053A publication Critical patent/BR9903053A/pt

Links

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.
BR9903053-5A 1998-07-04 1999-07-02 Catalisador para a redução de óxidos de nitrogênio na oxidação e redução de atmosferas BR9903053A (pt)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1129764T3 (da) * 2000-03-01 2006-01-23 Umicore Ag & Co Kg Katalysator til rensning af udstödningsgas fra dieselmotorer og fremgangsmåde til dens fremstilling
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0614692A1 (en) * 1990-05-03 1994-09-14 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
CA2127749A1 (en) 1993-07-09 1995-01-10 Takashi Itoh 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
CA2223458C (en) 1996-04-11 2002-06-18 Ict Co., Ltd. Catalyst for purifying exhaust gas and a process for purifying exhaust gas
DE19614540A1 (de) * 1996-04-12 1997-10-16 Degussa Dieselkatalysator

Also Published As

Publication number Publication date
KR20000011434A (ko) 2000-02-25
TR199901534A2 (xx) 2000-02-21
CA2276929A1 (en) 2000-01-04
DE19930494A1 (de) 2000-02-03
JP2000033267A (ja) 2000-02-02
AU3795799A (en) 2000-01-20
ZA994298B (en) 2000-01-10
AR019182A1 (es) 2001-12-26
US20010053341A1 (en) 2001-12-20
US6534439B2 (en) 2003-03-18
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