IT1316402B1 - Procedimento e apparecchio per determinare lo stato di accumulo dicatalizzatore scr accumulatore di ammoniaca. - Google Patents

Procedimento e apparecchio per determinare lo stato di accumulo dicatalizzatore scr accumulatore di ammoniaca.

Info

Publication number
IT1316402B1
IT1316402B1 IT2000RM000346A ITRM20000346A IT1316402B1 IT 1316402 B1 IT1316402 B1 IT 1316402B1 IT 2000RM000346 A IT2000RM000346 A IT 2000RM000346A IT RM20000346 A ITRM20000346 A IT RM20000346A IT 1316402 B1 IT1316402 B1 IT 1316402B1
Authority
IT
Italy
Prior art keywords
dicatalizer
accumulation
procedure
state
scr ammonia
Prior art date
Application number
IT2000RM000346A
Other languages
English (en)
Inventor
Klaus Binder
Tillmann Braun
Rainer Busch
Aleksandar Knezevic
Klaus-Juergen Marquardt
Ralf Moos
Carsten Plog
Original Assignee
Daimler Chrysler 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 Chrysler Ag filed Critical Daimler Chrysler Ag
Publication of ITRM20000346A0 publication Critical patent/ITRM20000346A0/it
Publication of ITRM20000346A1 publication Critical patent/ITRM20000346A1/it
Application granted granted Critical
Publication of IT1316402B1 publication Critical patent/IT1316402B1/it

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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8631—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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8696—Controlling the catalytic process
    • 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
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • 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
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/02—Catalytic activity of catalytic converters
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/021—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting ammonia NH3
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/12—Other sensor principles, e.g. using electro conductivity of substrate or radio frequency
    • 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
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
    • F01N2900/1402—Exhaust gas composition
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1622—Catalyst reducing agent absorption capacity or consumption amount
    • 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
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
IT2000RM000346A 1999-07-06 2000-06-26 Procedimento e apparecchio per determinare lo stato di accumulo dicatalizzatore scr accumulatore di ammoniaca. IT1316402B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19931007A DE19931007C2 (de) 1999-07-06 1999-07-06 Verfahren und Vorrichtung zur Bestimmung des Speicherzustands eines ammoniakspeichernden SCR-Katalysators

Publications (3)

Publication Number Publication Date
ITRM20000346A0 ITRM20000346A0 (it) 2000-06-26
ITRM20000346A1 ITRM20000346A1 (it) 2001-12-26
IT1316402B1 true IT1316402B1 (it) 2003-04-10

Family

ID=7913727

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2000RM000346A IT1316402B1 (it) 1999-07-06 2000-06-26 Procedimento e apparecchio per determinare lo stato di accumulo dicatalizzatore scr accumulatore di ammoniaca.

Country Status (4)

Country Link
US (1) US6833272B1 (it)
DE (1) DE19931007C2 (it)
FR (1) FR2796154B1 (it)
IT (1) IT1316402B1 (it)

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US7166262B2 (en) * 2002-09-25 2007-01-23 Mitsubishi Power Systems, Inc. Control for ammonia slip in selective catalytic reduction
US7950221B2 (en) 2003-04-25 2011-05-31 Catelectric Corp. Methods and apparatus for controlling catalytic processes, including catalyst regeneration and soot elimination
DE102004007038A1 (de) * 2004-02-12 2005-09-01 Daimlerchrysler Ag Vorrichtung zur Feststellung des Zustands eines Rußpartikelfilters
US7194891B2 (en) * 2004-04-20 2007-03-27 Massachusetts Institute Of Technology High-temperature gas sensors
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DE102004058790B3 (de) * 2004-12-07 2006-06-22 Daimlerchrysler Ag Körperschallsensor sowie Vorrichtung zur akustischen Diagnose defekter Kat-Anlagen von Kraftfahrzeugen
DE102006041135B4 (de) * 2005-09-01 2016-01-07 Ford Global Technologies, Llc Diagnosesystem sowie Verfahren zum Steuern und Diagnostizieren eines NOx reduzierenden Katalysators
DE102005048117A1 (de) 2005-10-06 2007-04-12 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren und Vorrichtung zur Reduktion des Stickoxidanteils im Abgas einer Verbrennungskraftmaschine
DE102006043152A1 (de) 2005-11-14 2007-06-28 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung eines Reduktionsmittel-Generationssystems
US7485272B2 (en) * 2005-11-30 2009-02-03 Caterpillar Inc. Multi-stage system for selective catalytic reduction
US7805929B2 (en) * 2005-12-21 2010-10-05 Caterpillar Inc Selective catalytic reduction system
DE102007009824A1 (de) * 2006-03-03 2007-09-27 Ford Global Technologies, LLC, Dearborn System und Verfahren zum Erfassen von Reduktionsmittelspeicherung
US8171724B2 (en) 2007-05-02 2012-05-08 Ford Global Technologies, Llc Vehicle-based strategy for removing urea deposits from an SCR catalyst
US7967720B2 (en) * 2007-06-13 2011-06-28 Ford Global Technologies, Llc Dynamic allocation of drive torque
WO2009036780A1 (de) * 2007-09-18 2009-03-26 Fev Motorentechnik Gmbh Nh3 -überwachung eines s cr- katalysators
US7964084B2 (en) 2007-09-20 2011-06-21 Catelectric Corp. Methods and apparatus for the synthesis of useful compounds
WO2009139852A1 (en) 2008-05-12 2009-11-19 Catelectric Corp. Methods and apparatus for controlling catalytic processes, including the deposition of carbon based particles
US8071037B2 (en) 2008-06-25 2011-12-06 Cummins Filtration Ip, Inc. Catalytic devices for converting urea to ammonia
US9358525B2 (en) 2008-12-04 2016-06-07 Johnson Matthey Public Limited Company NOx storage materials for sensor applications
DE102009022884A1 (de) 2009-05-27 2010-12-02 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Speicherbehälter zur Bestimmung der gespeicherten Menge von Ammoniak für die katalytische Abgasreinigung
US8991154B2 (en) 2010-07-12 2015-03-31 Mack Trucks, Inc. Methods and systems for controlling reductant levels in an SCR catalyst
US9091189B2 (en) 2012-07-13 2015-07-28 Cummins Ip, Inc. Method and system for mitigating urea deposits within an SCR catalyst system
JP6206065B2 (ja) * 2013-10-08 2017-10-04 いすゞ自動車株式会社 排気浄化システム
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CN105673147B (zh) * 2016-01-22 2018-08-31 潍柴动力股份有限公司 一种scr***的建压方法及装置
EP3223004A1 (en) * 2016-03-25 2017-09-27 Plastic Omnium Advanced Innovation and Research System and method for capacitively sensing the degree of ammonia saturation in solid storage medium
JP6835018B2 (ja) * 2018-03-12 2021-02-24 トヨタ自動車株式会社 異常診断装置
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Also Published As

Publication number Publication date
FR2796154B1 (fr) 2003-03-07
DE19931007A1 (de) 2001-01-25
ITRM20000346A0 (it) 2000-06-26
DE19931007C2 (de) 2001-10-18
ITRM20000346A1 (it) 2001-12-26
US6833272B1 (en) 2004-12-21
FR2796154A1 (fr) 2001-01-12

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