AR019182A1 - Catalizador para reduccion de oxidos de nitrogeno en atmosfera oxidante y reductora, procedimiento para la preparacion de un catalizador , y empleo delcatalizador. - Google Patents

Catalizador para reduccion de oxidos de nitrogeno en atmosfera oxidante y reductora, procedimiento para la preparacion de un catalizador , y empleo delcatalizador.

Info

Publication number
AR019182A1
AR019182A1 ARP990103138A ARP990103138A AR019182A1 AR 019182 A1 AR019182 A1 AR 019182A1 AR P990103138 A ARP990103138 A AR P990103138A AR P990103138 A ARP990103138 A AR P990103138A AR 019182 A1 AR019182 A1 AR 019182A1
Authority
AR
Argentina
Prior art keywords
catalyst
oxidizing
reduction
nitrogen oxides
reducing atmosphere
Prior art date
Application number
ARP990103138A
Other languages
English (en)
Original Assignee
Degussa Huls Aktiengesellscahft
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 Huls Aktiengesellscahft filed Critical Degussa Huls Aktiengesellscahft
Publication of AR019182A1 publication Critical patent/AR019182A1/es

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

Un catalizador para la reduccion de oxidos de nitrogeno en atmosfera oxidante y reductora. Un procedimiento para la preparacion de un catalizador y unempleo del catalizador. El catalizador contiene iridio sobre un material de soporte se emplean oxidode silicio o una zeolita desaluminizada en la forma Hácida con un modulo de más de 20, preferentemente de más de 100, o mezclas de las mismas. El iridio está precipitado sobre la superficie exterior de estosmateriales de soporte con tamano de partícula medio entre 10 y 30nm. El catalizador es especialmente adecuado para la purificacion del gas de escape de motoresDiesel o de motores nafteros operados pobremente.
ARP990103138A 1998-07-04 1999-06-29 Catalizador para reduccion de oxidos de nitrogeno en atmosfera oxidante y reductora, procedimiento para la preparacion de un catalizador , y empleo delcatalizador. AR019182A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19829976 1998-07-04

Publications (1)

Publication Number Publication Date
AR019182A1 true AR019182A1 (es) 2001-12-26

Family

ID=7873014

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990103138A AR019182A1 (es) 1998-07-04 1999-06-29 Catalizador para reduccion de oxidos de nitrogeno en atmosfera oxidante y reductora, procedimiento para la preparacion de un catalizador , y empleo delcatalizador.

Country Status (11)

Country Link
US (1) US6534439B2 (es)
EP (1) EP0968754A1 (es)
JP (1) JP2000033267A (es)
KR (1) KR20000011434A (es)
AR (1) AR019182A1 (es)
AU (1) AU3795799A (es)
BR (1) BR9903053A (es)
CA (1) CA2276929A1 (es)
DE (1) DE19930494A1 (es)
TR (1) TR199901534A2 (es)
ZA (1) ZA994298B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
WO1994019103A1 (en) * 1993-02-16 1994-09-01 Mitsubishi Jukogyo Kabushiki Kaisha Exhaust gas cleaning catalyst
DE69402766T2 (de) 1993-07-09 1997-07-31 N E Chemcat Corp Methode und Katalysator zur Reinigung von Abgasen
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
EP0832688B1 (en) 1996-04-11 2007-08-29 ICT Co., Ltd. Exhaust gas purifying catalyst and exhaust gas purifying method
DE19614540A1 (de) * 1996-04-12 1997-10-16 Degussa Dieselkatalysator

Also Published As

Publication number Publication date
US6534439B2 (en) 2003-03-18
CA2276929A1 (en) 2000-01-04
ZA994298B (en) 2000-01-10
DE19930494A1 (de) 2000-02-03
US20010053341A1 (en) 2001-12-20
TR199901534A2 (xx) 2000-02-21
BR9903053A (pt) 2000-05-09
EP0968754A1 (de) 2000-01-05
AU3795799A (en) 2000-01-20
KR20000011434A (ko) 2000-02-25
JP2000033267A (ja) 2000-02-02

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