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FR2755726B1 - Procede et dispositif d'addition dosee de reducteur d'oxyde d'azote au gaz d'echappement d'un systeme de combustion - Google Patents

Procede et dispositif d'addition dosee de reducteur d'oxyde d'azote au gaz d'echappement d'un systeme de combustion

Info

Publication number
FR2755726B1
FR2755726B1 FR9714086A FR9714086A FR2755726B1 FR 2755726 B1 FR2755726 B1 FR 2755726B1 FR 9714086 A FR9714086 A FR 9714086A FR 9714086 A FR9714086 A FR 9714086A FR 2755726 B1 FR2755726 B1 FR 2755726B1
Authority
FR
France
Prior art keywords
exhaust gas
nitrogen oxide
combustion system
dosed addition
oxide reducer
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 - Lifetime
Application number
FR9714086A
Other languages
English (en)
Other versions
FR2755726A1 (fr
Inventor
Klaus Jurgen Marquardt
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of FR2755726A1 publication Critical patent/FR2755726A1/fr
Application granted granted Critical
Publication of FR2755726B1 publication Critical patent/FR2755726B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/79—Injecting reactants
    • 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
    • B01D53/9431—Processes characterised by a specific device
    • 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
    • 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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1493—Details
    • F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
    • 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
    • F01N2570/14—Nitrogen oxides
    • 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
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Treating Waste Gases (AREA)
FR9714086A 1996-11-12 1997-11-10 Procede et dispositif d'addition dosee de reducteur d'oxyde d'azote au gaz d'echappement d'un systeme de combustion Expired - Lifetime FR2755726B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19646646A DE19646646C2 (de) 1996-11-12 1996-11-12 Verfahren und Vorrichtung zur Stickoxidreduktionsmittelzudosierung zum Abgas einer Verbrennungsanlage

Publications (2)

Publication Number Publication Date
FR2755726A1 FR2755726A1 (fr) 1998-05-15
FR2755726B1 true FR2755726B1 (fr) 2000-11-10

Family

ID=7811383

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9714086A Expired - Lifetime FR2755726B1 (fr) 1996-11-12 1997-11-10 Procede et dispositif d'addition dosee de reducteur d'oxyde d'azote au gaz d'echappement d'un systeme de combustion

Country Status (3)

Country Link
DE (1) DE19646646C2 (fr)
FR (1) FR2755726B1 (fr)
IT (1) IT1295856B1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3595541B2 (ja) * 2002-02-07 2004-12-02 三菱重工業株式会社 脱硝装置のｎｈ３注入量制御方法及び制御装置
DE102004021372B4 (de) * 2004-04-30 2014-05-28 Robert Bosch Gmbh Verfahren zum Dosieren eines Reagenzmittels zur Reinigung des Abgases von Brennkraftmaschinen und Vorrichtung zur Durchführung des Verfahrens
DE102007037569B4 (de) 2007-08-09 2020-01-16 Daimler Ag Verfahren zum Prüfen eines Abgasnachbehandlungssystems
DE102008034212B4 (de) * 2008-07-23 2018-06-21 Bayerische Motoren Werke Aktiengesellschaft Reduktionsmitteltank zum Bereitstellen von Reduktionsmittel an einer Abgasanlage mit einer Pumpe und einer Diagnoseeinrichtung
DE102008043469B4 (de) 2008-11-04 2019-01-17 Robert Bosch Gmbh Verfahren zur Prüfung der Funktionsfähigkeit eines Dosierventils eines NOx-Reduktionssystems einer Brennkraftmaschine
US8915062B2 (en) 2009-10-09 2014-12-23 GM Global Technology Operations LLC Method and apparatus for monitoring a reductant injection system in an exhaust aftertreatment system
AT11542U3 (de) * 2010-04-19 2011-07-15 Man Nutzfahrzeuge Oesterreich Vorrichtung zur prüfung der funktionsgenauigkeit einer pumpe
KR20140087369A (ko) 2012-12-28 2014-07-09 현대자동차주식회사 요소 레벨 센서의 고장 진단 방법 및 장치
FR3016183A1 (fr) * 2014-01-06 2015-07-10 Peugeot Citroen Automobiles Sa Systeme de reduction catalytique selective securise
GB2530634B (en) * 2014-08-08 2020-12-16 Cummins Emission Solutions Inc Diagnosing system for reductant dosing system
DE102014017829A1 (de) * 2014-12-03 2016-06-09 Daimler Ag Verfahren zum Überprüfen einer Dosiereinrichtung auf Funktionstüchtigkeit und Abgasnachbehandlungseinrichtung für ein Fahrzeug
CN113082990B (zh) * 2021-04-09 2023-05-30 浙江菲达环保科技股份有限公司 脱硫系统全负荷段一键启停方法及系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188190A (en) * 1976-03-23 1980-02-12 Kurashiki Boseki Kabushiki Kaisha Input control method and means for nitrogen oxide removal means
DE3337793A1 (de) * 1983-10-18 1985-05-02 L. & C. Steinmüller GmbH, 5270 Gummersbach Verfahren zur regelung der zugabemenge an reduktionsmittel bei der katalytischen reduktion von in rauchgasen enthaltenem no(pfeil abwaerts)x(pfeil abwaerts)
JPS61254229A (ja) * 1985-05-02 1986-11-12 Babcock Hitachi Kk 脱硝触媒装置へのアンモニアの注入量制御装置
DE3615021A1 (de) * 1986-05-02 1987-11-05 Ruhrgas Ag Verfahren und vorrichtung zum selektiven katalytischen reduzieren der stickoxyde aus verbrennungsmotor-abgasen
AT385915B (de) * 1986-07-30 1988-06-10 Jenbacher Werke Ag Verfahren zur katalysator-steuerung und -regelung
EP0380143A3 (fr) * 1986-10-07 1990-09-12 Nippon Kokan Kabushiki Kaisha Dispositif pour la dénitration des gaz d'échappement
DE4203219A1 (de) * 1992-02-05 1993-08-12 Basf Ag Verfahren zur stickoxidminderung in abgasen durch gesteuerte nh(pfeil abwaerts)3(pfeil abwaerts)-zugabe
DE4227741A1 (de) * 1992-08-21 1994-02-24 Bayerische Motoren Werke Ag Verfahren zur Reduktion von in Abgasen enthaltenen Stickoxiden
DE4315278A1 (de) * 1993-05-07 1994-11-10 Siemens Ag Verfahren und Einrichtung zur Dosierung eines Reduktionsmittels in ein stickoxidhaltiges Abgas

Also Published As

Publication number Publication date
ITRM970688A1 (it) 1999-05-10
IT1295856B1 (it) 1999-05-28
DE19646646A1 (de) 1998-05-14
DE19646646C2 (de) 1998-12-10
FR2755726A1 (fr) 1998-05-15

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