FR2817590B1 - METHOD AND DEVICE FOR DESULFURIZING A PRE-CATALYST - Google Patents

METHOD AND DEVICE FOR DESULFURIZING A PRE-CATALYST

Info

Publication number
FR2817590B1
FR2817590B1 FR0115514A FR0115514A FR2817590B1 FR 2817590 B1 FR2817590 B1 FR 2817590B1 FR 0115514 A FR0115514 A FR 0115514A FR 0115514 A FR0115514 A FR 0115514A FR 2817590 B1 FR2817590 B1 FR 2817590B1
Authority
FR
France
Prior art keywords
desulfurizing
catalyst
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
FR0115514A
Other languages
French (fr)
Other versions
FR2817590A1 (en
Inventor
Ekkehard Pott
Matthias Holz
Martina Gottschling
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of FR2817590A1 publication Critical patent/FR2817590A1/en
Application granted granted Critical
Publication of FR2817590B1 publication Critical patent/FR2817590B1/en
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
    • 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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • 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
    • 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
    • B01D53/9495—Controlling the catalytic process
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
    • F02D41/0275—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a NOx trap or adsorbent
    • F02D41/028—Desulfurisation of NOx traps or adsorbent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/91—NOx-storage component incorporated in the catalyst
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/04—Sulfur or sulfur oxides
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas After Treatment (AREA)
FR0115514A 2000-12-01 2001-11-30 METHOD AND DEVICE FOR DESULFURIZING A PRE-CATALYST Expired - Fee Related FR2817590B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10059791A DE10059791B4 (en) 2000-12-01 2000-12-01 Method and device for desulfurization of a precatalyst

Publications (2)

Publication Number Publication Date
FR2817590A1 FR2817590A1 (en) 2002-06-07
FR2817590B1 true FR2817590B1 (en) 2007-06-08

Family

ID=7665454

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0115514A Expired - Fee Related FR2817590B1 (en) 2000-12-01 2001-11-30 METHOD AND DEVICE FOR DESULFURIZING A PRE-CATALYST

Country Status (2)

Country Link
DE (1) DE10059791B4 (en)
FR (1) FR2817590B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10240833B4 (en) * 2002-09-04 2017-06-01 Robert Bosch Gmbh Method for reducing exhaust emissions of an internal combustion engine
DE10338181B4 (en) * 2003-06-30 2012-05-31 Volkswagen Ag Method and device for influencing the temperature of a catalyst system
DE10347275B4 (en) * 2003-08-18 2012-03-01 Volkswagen Ag Method and device for desulfurization of a catalyst
DE10349854B4 (en) * 2003-10-22 2012-08-23 Volkswagen Ag Method and device for desulphurizing a NOx storage catalytic converter
JP6955449B2 (en) * 2018-01-15 2021-10-27 株式会社Ｓｕｂａｒｕ Exhaust gas purification device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19813654A1 (en) * 1998-03-27 1999-09-30 Degussa Method for operating an exhaust gas purification system containing a sulfur trap and a nitrogen oxide storage catalytic converter
JP3997599B2 (en) * 1998-04-27 2007-10-24 株式会社デンソー Air-fuel ratio control device for internal combustion engine
DE19918756A1 (en) * 1999-04-24 2000-10-26 Volkswagen Ag Exhaust catalyst system includes three-way catalyst removing reductants carbon monoxide and hydrocarbons, followed by two nitrogen oxide storage catalysts optimized for operation at different temperatures
DE19921972A1 (en) * 1999-05-12 2000-11-16 Volkswagen Ag Process for desulfurizing a nitrogen oxides storage catalyst arranged in an exhaust gas channel of an IC engine comprises using operating parameters to raise the exhaust gas temperature and guarantee the working modulus of the engine
DE19921976A1 (en) * 1999-05-12 2000-11-16 Volkswagen Ag Arrangement for cleaning an exhaust gas of an internal combustion engine
DE19921971A1 (en) * 1999-05-12 2000-11-16 Volkswagen Ag Exhaust gas purifying device for lean-burn IC engine comprises a nitrogen oxides storage catalyst and a pre-catalyst
DE19923481A1 (en) * 1999-05-21 2000-11-23 Volkswagen Ag Desulfurizing a nitrogen oxides storage catalyst arranged in the exhaust gas channel of an IC engine comprises adjusting the engine to a lean working modulus until a threshold value for lambda is reached in a first phase

Also Published As

Publication number Publication date
FR2817590A1 (en) 2002-06-07
DE10059791A1 (en) 2002-06-27
DE10059791B4 (en) 2010-06-10

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Year of fee payment: 15

ST Notification of lapse

Effective date: 20170731