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DE69222488D1 - Abgasreiniger - Google Patents

Abgasreiniger

Info

Publication number
DE69222488D1
DE69222488D1 DE69222488T DE69222488T DE69222488D1 DE 69222488 D1 DE69222488 D1 DE 69222488D1 DE 69222488 T DE69222488 T DE 69222488T DE 69222488 T DE69222488 T DE 69222488T DE 69222488 D1 DE69222488 D1 DE 69222488D1
Authority
DE
Germany
Prior art keywords
exhaust gas
gas cleaner
cleaner
exhaust
gas
Prior art date
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.)
Expired - Fee Related
Application number
DE69222488T
Other languages
English (en)
Other versions
DE69222488T2 (de
Inventor
Kiyohide Yoshida
Gyo Muramatsu
Akira Abe
Tatsuo Miyadera
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.)
Kocat Inc
Original Assignee
Agency of Industrial Science and Technology
Riken 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.)
Filing date
Publication date
Priority claimed from JP3280482A external-priority patent/JPH0576757A/ja
Priority claimed from JP3280476A external-priority patent/JPH0592124A/ja
Priority claimed from JP3280825A external-priority patent/JPH0696094B2/ja
Priority claimed from JP4138070A external-priority patent/JP2516145B2/ja
Application filed by Agency of Industrial Science and Technology, Riken Corp filed Critical Agency of Industrial Science and Technology
Application granted granted Critical
Publication of DE69222488D1 publication Critical patent/DE69222488D1/de
Publication of DE69222488T2 publication Critical patent/DE69222488T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B01J37/20—Sulfiding
    • 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
    • B01J23/48—Silver or gold
    • B01J23/50—Silver
    • 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
    • F01N3/18—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 methods of operation; Control
    • F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/21—Organic compounds not provided for in groups B01D2251/206 or B01D2251/208
    • 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
    • B01D2255/104—Silver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/06—Adding substances to exhaust gases the substance being in the gaseous form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (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)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
DE69222488T 1991-07-23 1992-07-23 Abgasreiniger Expired - Fee Related DE69222488T2 (de)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP20652991 1991-07-23
JP3280482A JPH0576757A (ja) 1991-07-23 1991-09-30 窒素酸化物除去触媒及び窒素酸化物除去方法
JP3280476A JPH0592124A (ja) 1991-09-30 1991-09-30 窒素酸化物除去方法
JP28047991 1991-09-30
JP3280825A JPH0696094B2 (ja) 1991-09-30 1991-09-30 排ガス浄化方法
JP7339992 1992-02-25
JP13795992 1992-04-30
JP4138070A JP2516145B2 (ja) 1991-09-30 1992-04-30 窒素酸化物除去方法
JP20453992 1992-07-08

Publications (2)

Publication Number Publication Date
DE69222488D1 true DE69222488D1 (de) 1997-11-06
DE69222488T2 DE69222488T2 (de) 1998-02-05

Family

ID=27577156

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69222488T Expired - Fee Related DE69222488T2 (de) 1991-07-23 1992-07-23 Abgasreiniger

Country Status (2)

Country Link
EP (1) EP0526099B1 (de)
DE (1) DE69222488T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2690358B1 (fr) * 1992-04-25 1995-01-13 Volkswagen Ag Procédé de réduction des oxydes d'azote dans des gaz d'échappement contenant de l'oxygène .
US5714432A (en) * 1992-12-28 1998-02-03 Kabushiki Kaisha Riken Exhaust gas cleaner comprising supported silver or silver oxide particles
DE69309245T2 (de) * 1992-12-28 1997-07-03 Kashiwagi Hiroshi Abgasreiniger
EP0658368A1 (de) * 1993-12-17 1995-06-21 N.E. Chemcat Corporation NOx-Entfernungskatalysator und Abgasreinigung unter dessen Verwendung
JPH0889803A (ja) * 1994-09-28 1996-04-09 Isuzu Motors Ltd 窒素酸化物接触還元用触媒
EP0770421A1 (de) * 1995-10-25 1997-05-02 Nikki Chemical Co., Ltd. Katalysator zum Entfernen von Stickstoffoxiden
US6383273B1 (en) 1999-08-12 2002-05-07 Apyron Technologies, Incorporated Compositions containing a biocidal compound or an adsorbent and/or catalyst compound and methods of making and using therefor
CN100355488C (zh) * 2003-05-07 2007-12-19 韩国高化环保技术有限公司 通过多次喷射还原氮氧化物的催化方法及其用法
US8062991B2 (en) * 2004-12-22 2011-11-22 General Electric Company Catalyst system and method for the reduction of NOx
US20060133977A1 (en) * 2004-12-22 2006-06-22 Male Jonathan L Catalyst system and method for the reduction of NOx
EP1875954A4 (de) 2005-04-11 2011-06-22 Honda Motor Co Ltd Katalysator zur katalytischen reduktion von stickstoffoxid, katalysatorkonstruktion und verfahren zur katalytischen reduktion von stickstoffoxid
US8871669B2 (en) 2008-05-19 2014-10-28 General Electric Company Catalyst and method of manufacture
FR2950268B1 (fr) * 2009-09-22 2012-12-28 Peugeot Citroen Automobiles Sa Catalyseur pour la reduction des oxydes d'azote par les hydrocarbures ou les composes oxygenes
WO2012127127A1 (fr) 2011-03-18 2012-09-27 Institut Regional Des Materiaux Avances (Irma) Catalyseur pour la reduction des nox par les hydrocarbures et les composes oxygenes
PL224172B1 (pl) 2011-08-08 2016-11-30 Univ Jagiellonski Katalizator do bezpośredniego rozkładu tlenku azotu i sposób wytwarzania katalizatora do bezpośredniego rozkładu tlenku azotu
PL235905B1 (pl) 2013-06-05 2020-11-16 Univ Jagiellonski Monolityczny katalizator do równoczesnego usuwania NOx i cząstek węglowych w szczególności z gazów odlotowych elektrowni węglowych oraz sposób wytwarzania monolitycznego katalizatora do równoczesnego usuwania NOx i cząstek węglowych w szczególności z gazów odlotowych elektrowni węglowych
US12180101B2 (en) 2018-06-01 2024-12-31 Altered Labs Llc Reducing compositions and processes for producing the same
WO2023215864A1 (en) * 2022-05-05 2023-11-09 Altered Labs Llc Ignited reducing compositions and methods for catalytically decomposing exhaust gas mixtures

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5012393B2 (de) * 1973-03-13 1975-05-12
EP0362960A3 (de) * 1988-10-05 1990-06-27 Sakai Chemical Industry Co., Ltd., Anwendung vom Katalysator zur Denitrierung und Denitrierungskatalysatoren
EP0614692A1 (de) * 1990-05-03 1994-09-14 Sakai Chemical Industry Co., Ltd., Katalysatoren und Verfahren zur Denitrierung
DE69125649T2 (de) * 1990-05-28 1997-09-04 Agency Ind Science Techn Verfahren zum Entfernen von Stickoxiden aus Abgasen
CA2049528A1 (en) * 1990-09-13 1992-03-14 Heinrich Aichinger The catilytic decomposition of dinitrogen monoxide which is pure or present in gas mixtures

Also Published As

Publication number Publication date
DE69222488T2 (de) 1998-02-05
EP0526099A1 (de) 1993-02-03
EP0526099B1 (de) 1997-10-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KOCAT INC., SEOUL, KR AGENCY OF INDUSTRIAL SCIENCE

8328 Change in the person/name/address of the agent

Representative=s name: PFENNING MEINIG & PARTNER GBR, 80339 MUENCHEN

8339 Ceased/non-payment of the annual fee