WO2008142929A1 - ＮＯｘ浄化システムの制御方法及びＮＯｘ浄化システム - Google Patents

ＮＯｘ浄化システムの制御方法及びＮＯｘ浄化システム Download PDF

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Publication number
WO2008142929A1
WO2008142929A1 PCT/JP2008/057434 JP2008057434W WO2008142929A1 WO 2008142929 A1 WO2008142929 A1 WO 2008142929A1 JP 2008057434 W JP2008057434 W JP 2008057434W WO 2008142929 A1 WO2008142929 A1 WO 2008142929A1
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WO
WIPO (PCT)
Prior art keywords
sulfur poisoning
nox
purification system
reducing agent
nox purification
Prior art date
Application number
PCT/JP2008/057434
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English (en)
French (fr)
Inventor
Masashi Gabe
Daiji Nagaoka
Original Assignee
Isuzu Motors Limited
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 Isuzu Motors Limited filed Critical Isuzu Motors Limited
Priority to CN2008800162831A priority Critical patent/CN101680337B/zh
Priority to EP08740513A priority patent/EP2149686B1/en
Priority to US12/451,422 priority patent/US8109080B2/en
Priority to AU2008252223A priority patent/AU2008252223B2/en
Publication of WO2008142929A1 publication Critical patent/WO2008142929A1/ja

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    • 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
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • 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
    • 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
    • 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
    • F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
    • F01N3/0885—Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps
    • 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • 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
    • 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
    • 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
    • F01N2560/022—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting CO or CO2
    • 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
    • F01N2560/023—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting HC
    • 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
    • F01N2560/024—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting hydrogen H2
    • 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
    • F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
    • 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
    • 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
    • F01N2900/1621—Catalyst conversion efficiency
    • 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
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

　ＮＯｘ吸蔵還元型触媒２０と、ＮＯｘ再生制御と硫黄被毒再生制御とを行う制御装置３０を備えたＮＯｘ浄化システム１において、ＮＯｘ吸蔵還元型触媒２０の下流側に、バイナリλセンサー２６と還元剤の濃度を検出する還元剤濃度センサー２５を配設し、ＮＯｘ再生制御の際に、バイナリλセンサー２６が酸素濃度の大きな低下を検出した時点Ｔ３てから、還元剤濃度センサー２５が還元剤の濃度の大きな増加を検出する時点Ｔ２までの間の時間Ｔａから、ＮＯｘ吸蔵還元型触媒２０の硫黄被毒による劣化度合を判定する。これにより、硫黄被毒量を精度良く推定して、適正な頻度で硫黄被毒再生を実施することにより、過度の硫黄被毒再生を回避して燃費の悪化を防止する。
PCT/JP2008/057434 2007-05-16 2008-04-16 ＮＯｘ浄化システムの制御方法及びＮＯｘ浄化システム WO2008142929A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2008800162831A CN101680337B (zh) 2007-05-16 2008-04-16 NOx净化系统的控制方法及NOx净化系统
EP08740513A EP2149686B1 (en) 2007-05-16 2008-04-16 Method of controlling nox purification system and nox purification system
US12/451,422 US8109080B2 (en) 2007-05-16 2008-04-16 Method of controlling NOx purification system and NOx purification system
AU2008252223A AU2008252223B2 (en) 2007-05-16 2008-04-16 Method of controlling NOx purification system and NOx purification system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007130123A JP4175427B1 (ja) 2007-05-16 2007-05-16 ＮＯｘ浄化システムの制御方法及びＮＯｘ浄化システム
JP2007-130123 2007-05-16

Publications (1)

Publication Number Publication Date
WO2008142929A1 true WO2008142929A1 (ja) 2008-11-27

Family

ID=40031645

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Application Number Title Priority Date Filing Date
PCT/JP2008/057434 WO2008142929A1 (ja) 2007-05-16 2008-04-16 ＮＯｘ浄化システムの制御方法及びＮＯｘ浄化システム

Country Status (6)

Country Link
US (1) US8109080B2 (ja)
EP (1) EP2149686B1 (ja)
JP (1) JP4175427B1 (ja)
CN (1) CN101680337B (ja)
AU (1) AU2008252223B2 (ja)
WO (1) WO2008142929A1 (ja)

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FR2943382A1 (fr) * 2009-03-19 2010-09-24 Renault Sas Procede de gestion d'un piege a oxydes d'azote et dispositif de piege associe

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JP5093134B2 (ja) * 2009-01-29 2012-12-05 トヨタ自動車株式会社 内燃機関の排気浄化装置
US8186151B2 (en) * 2009-06-09 2012-05-29 GM Global Technology Operations LLC Method to monitor HC-SCR catalyst NOx reduction performance for lean exhaust applications
US9074530B2 (en) * 2011-01-13 2015-07-07 General Electric Company Stoichiometric exhaust gas recirculation and related combustion control
JP2012241608A (ja) * 2011-05-19 2012-12-10 Denso Corp 内燃機関の燃料改質システムの触媒劣化診断装置
US8694197B2 (en) * 2011-05-26 2014-04-08 GM Global Technology Operations LLC Gain/amplitude diagnostics of NOx sensors
US8756922B2 (en) * 2011-06-10 2014-06-24 Cummins Ip, Inc. NOx adsorber catalyst condition evaluation apparatus and associated methods
JP5983743B2 (ja) * 2012-06-19 2016-09-06 トヨタ自動車株式会社 内燃機関の排気浄化装置
US8617495B1 (en) * 2012-11-08 2013-12-31 GM Global Technology Operations LLC Exhaust gas aftertreatment desulfurization control
CN103939186B (zh) * 2013-01-23 2018-08-07 罗伯特·博世技术与业务解决方案公司 用于调节车辆中的废气催化器的再生频率的方法和装置
JP2014202126A (ja) * 2013-04-04 2014-10-27 いすゞ自動車株式会社 排ガス後処理装置におけるＮＯｘ吸蔵還元型触媒の劣化判定方法
CN105579677B (zh) * 2013-09-25 2018-01-19 丰田自动车株式会社 排气净化装置的诊断装置
GB2532021B (en) * 2014-11-05 2018-08-15 Ford Global Tech Llc A method of pre-emptively regenerating a lean NOx trap
WO2016076830A1 (en) * 2014-11-10 2016-05-19 Cummins Emission Solutions, Inc. Exhaust fluid filter including hydrocarbon detection witness media
JP6582409B2 (ja) * 2014-12-26 2019-10-02 いすゞ自動車株式会社 排気浄化システム
JP2016133063A (ja) * 2015-01-20 2016-07-25 いすゞ自動車株式会社 排気浄化システム
JP6183401B2 (ja) 2015-04-02 2017-08-23 トヨタ自動車株式会社 触媒再生処理装置
DE102016209358B4 (de) 2016-05-31 2018-10-18 Continental Automotive Gmbh Verfahren, Vorrichtung zum Überwachen einer Stickoxidfalle, Computerprogramm und Computerprogrammprodukt
DE102017213594B4 (de) * 2017-08-04 2020-06-25 Continental Automotive Gmbh Verfahren zum Ermitteln des Beladungszustands eines SCR-Katalysators und SCR-Katalysatorvorrichtung
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2943382A1 (fr) * 2009-03-19 2010-09-24 Renault Sas Procede de gestion d'un piege a oxydes d'azote et dispositif de piege associe

Also Published As

Publication number Publication date
CN101680337A (zh) 2010-03-24
US8109080B2 (en) 2012-02-07
AU2008252223B2 (en) 2011-02-24
US20100115924A1 (en) 2010-05-13
EP2149686A4 (en) 2011-06-01
EP2149686B1 (en) 2012-06-20
JP2008286042A (ja) 2008-11-27
AU2008252223A1 (en) 2008-11-27
JP4175427B1 (ja) 2008-11-05
EP2149686A1 (en) 2010-02-03
CN101680337B (zh) 2012-07-25

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