ZA994298B - Catalyst for reducing nitrogen oxides in oxidising and reducing atmospheres. - Google Patents

Catalyst for reducing nitrogen oxides in oxidising and reducing atmospheres.

Info

Publication number
ZA994298B
ZA994298B ZA9904298A ZA994298A ZA994298B ZA 994298 B ZA994298 B ZA 994298B ZA 9904298 A ZA9904298 A ZA 9904298A ZA 994298 A ZA994298 A ZA 994298A ZA 994298 B ZA994298 B ZA 994298B
Authority
ZA
South Africa
Prior art keywords
reducing
oxidising
catalyst
nitrogen oxides
atmospheres
Prior art date
Application number
ZA9904298A
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 ZA994298B publication Critical patent/ZA994298B/xx

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)
ZA9904298A 1998-07-04 1999-06-30 Catalyst for reducing nitrogen oxides in oxidising and reducing atmospheres. ZA994298B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA994298B true ZA994298B (en) 2000-01-10

Family

ID=7873014

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9904298A ZA994298B (en) 1998-07-04 1999-06-30 Catalyst for reducing nitrogen oxides in oxidising and reducing atmospheres.

Country Status (11)

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

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
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

Also Published As

Publication number Publication date
BR9903053A (pt) 2000-05-09
AR019182A1 (es) 2001-12-26
DE19930494A1 (de) 2000-02-03
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

Similar Documents

Publication Publication Date Title
ZA200103245B (en) A process and catalyst for reducing nitrogen oxides.
PL342499A1 (en) Deeply reduced oxidation catalyst and its application in catalysing liquid-phase oxidation reactions
TR199902000A3 (tr) Azot oksit depolama malzemesi ve bundan hazirlanan azot oksit depolama katalizörü.
ZA996443B (en) A nitrogen oxide storage catalyst.
AU7762698A (en) Method and device for reducing nitrogen oxides in an scr catalyst
HK1053827A1 (zh) 新型晚過渡金屬催化劑配合物及其低聚物
ZA956007B (en) Oxidation catalyst its preparation and oxidation using the oxidation catalyst
GB9810928D0 (en) Catalyst and process
MX257765B (en) Epoxidation catalyst carrier, preparation and use thereof
HUP0105159A3 (en) A mixed metal catalyst compopsition, its preparation and use
AU7697294A (en) Catalyst based on fe, co, bi and mo oxides
ZA991845B (en) Catalyst and use thereof.
PL330185A1 (en) Oxidation catalyst
EP1210084A4 (en) PYRIDOMORPHINANS, THIENOMORPHINANS AND THEIR USE
ZA994298B (en) Catalyst for reducing nitrogen oxides in oxidising and reducing atmospheres.
AU5986999A (en) Dimeric diimine transition metal complex and catalysts
MXPA03006533A (es) Composicion catalizadora y proceso que utiliza la misma.
ZA200000838B (en) Method for reducing nitrous oxide in gases, and corresponding catalysts.
ZA9810842B (en) Epoxidation catalyst, its use and epoxidation process in the presence of this catalyst.
ZA9810270B (en) Ammonia oxidation catalysts
EP1123930A4 (en) sYCLIC PHENOL SULFIDE-METAL COMPLEXES, CATALYSTS COMPRISING THE SAME AND ANALYTICAL METHODS FOR HYDROGEN PEROXIDE
HUP9904522A3 (en) Catalyst, in particular for reducing nox and method for reducing nox
ITBZ930017A0 (it) Catalizzatore,in particolare catalizzatore ad ossidazione.
ZA976594B (en) Catalyst composition, its preparation, and its use in catalytic incineration.
DE59810246D1 (de) Zn-Cu-Al Mischoxydkatalysator in Tablettenform