WO2008142930A1 - 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
WO2008142930A1
WO2008142930A1 PCT/JP2008/057440 JP2008057440W WO2008142930A1 WO 2008142930 A1 WO2008142930 A1 WO 2008142930A1 JP 2008057440 W JP2008057440 W JP 2008057440W WO 2008142930 A1 WO2008142930 A1 WO 2008142930A1
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WIPO (PCT)
Prior art keywords
ammonia
catalyst
selective reduction
purification system
formation control
Prior art date
Application number
PCT/JP2008/057440
Other languages
English (en)
French (fr)
Inventor
Daiji Nagaoka
Masashi Gabe
Hiroyuki Yuza
Original Assignee
Isuzu Motors Limited
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Filing date
Publication date
Application filed by Isuzu Motors Limited filed Critical Isuzu Motors Limited
Priority to EP08740516.3A priority Critical patent/EP2149684B1/en
Priority to AU2008252224A priority patent/AU2008252224B2/en
Priority to US12/451,382 priority patent/US8356470B2/en
Priority to CN2008800164324A priority patent/CN101680329B/zh
Publication of WO2008142930A1 publication Critical patent/WO2008142930A1/ja

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    • 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
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    • 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]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
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    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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  • Engineering & Computer Science (AREA)
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  • General Engineering & Computer Science (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

　選択的還元触媒３３を備え、アンモニアや尿素を供給しなくても、アンモニア生成制御でリーンＮＯｘ触媒又は三元触媒で形成される第１触媒３２でＮＯｘをアンモニアに変換し、このアンモニアを下流側の選択還元型触媒３３で吸着し、この吸着したアンモニアで、アンモニア生成制御を行っていない時の排気ガス中のＮＯｘを選択還元型触媒３３で還元浄化するＮＯｘ浄化システムにおいて、アンモニア生成制御に際して、選択還元型触媒３３で吸着するアンモニアの目標値であるアンモニア吸着目標量Ａｔを算出し、アンモニア生成制御により第１触媒３２で生成されるアンモニア生成量Ａ４の積算値Ａ３がアンモニア吸着目標量Ａｔを下回る時にのみアンモニア生成制御を実施する。これにより、選択還元型触媒３３に対してアンモニアを過不足なく安定して供給する。
PCT/JP2008/057440 2007-05-17 2008-04-16 ＮＯｘ浄化システムの制御方法及びＮＯｘ浄化システム WO2008142930A1 (ja)

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US12/451,382 US8356470B2 (en) 2007-05-17 2008-04-16 Method of controlling NOx purification system and NOx purification system
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102137990A (zh) * 2009-11-12 2011-07-27 丰田自动车株式会社 内燃机的排气净化系统

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010112345A (ja) * 2008-11-10 2010-05-20 Mitsubishi Motors Corp 排気浄化装置
US8108154B2 (en) * 2008-12-10 2012-01-31 GM Global Technology Operations LLC NOx emission estimation systems and methods
JP5035263B2 (ja) * 2009-02-06 2012-09-26 三菱自動車工業株式会社 内燃機関の排気浄化装置
CN102549245B (zh) 2009-06-03 2014-06-11 丰田自动车株式会社 内燃机的排气净化装置
JP5522360B2 (ja) * 2009-08-28 2014-06-18 井関農機株式会社 コンバイン
US20120180462A1 (en) * 2009-10-09 2012-07-19 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
JP5347996B2 (ja) * 2010-02-04 2013-11-20 三菱自動車工業株式会社 排ガス浄化装置
EP2402571B1 (en) 2010-03-15 2015-03-11 Toyota Jidosha Kabushiki Kaisha Exhaust purifying system of an internal combustion engine
JP5505339B2 (ja) * 2010-03-15 2014-05-28 トヨタ自動車株式会社 内燃機関の排気浄化装置
US8683784B2 (en) 2010-03-15 2014-04-01 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
DE102010013696A1 (de) 2010-04-01 2011-10-06 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren zum Betrieb einer Abgashandlungsvorrichtung
CN102859136B (zh) 2010-04-01 2015-04-08 丰田自动车株式会社 内燃机的排气净化装置
EP2460992B1 (en) 2010-07-28 2018-12-05 Toyota Jidosha Kabushiki Kaisha Exhaust purification apparatus for internal combustion engine
WO2012025976A1 (ja) * 2010-08-23 2012-03-01 トヨタ自動車株式会社 内燃機関の排気浄化装置
WO2012029188A1 (ja) 2010-08-30 2012-03-08 トヨタ自動車株式会社 内燃機関の排気浄化装置
CA2752774C (en) 2010-08-30 2014-02-18 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
WO2012046332A1 (ja) 2010-10-04 2012-04-12 トヨタ自動車株式会社 内燃機関の排気浄化装置
WO2012046333A1 (ja) 2010-10-04 2012-04-12 トヨタ自動車株式会社 内燃機関の排気浄化装置
WO2012053117A1 (ja) 2010-10-18 2012-04-26 トヨタ自動車株式会社 内燃機関の排気浄化装置
US9097159B2 (en) * 2010-10-21 2015-08-04 Volvo Trucks AB Method for detecting urea deposits in an exhaust line of an automotive vehicle, method for eliminating urea deposits and automotive vehicle adapted to such methods
CN103221648B (zh) 2010-12-06 2016-08-24 丰田自动车株式会社 内燃机的排气净化装置
BRPI1010835B8 (pt) 2010-12-20 2021-01-12 Toyota Motor Co Ltd sistema de purificação de exaustão de motor de combustão interna
JP5131389B2 (ja) 2010-12-24 2013-01-30 トヨタ自動車株式会社 内燃機関の排気浄化装置
DE102011003599A1 (de) * 2011-02-03 2012-08-09 Robert Bosch Gmbh Verfahren zum Dosieren eines Reduktionsmittels
EP2503121B1 (en) * 2011-02-07 2017-03-22 Toyota Jidosha Kabushiki Kaisha Exhaust-gas purifying system for internal-combustion engine
CN103348102B (zh) 2011-02-10 2016-01-20 丰田自动车株式会社 内燃机的排气净化装置
EP2687693B1 (en) 2011-03-17 2016-11-30 Toyota Jidosha Kabushiki Kaisha Internal combustion engine exhaust gas purification device
EP2532852B1 (en) 2011-04-15 2016-08-24 Toyota Jidosha Kabushiki Kaisha Exhaust purification method of internal combustion engine
US20120282564A1 (en) * 2011-05-03 2012-11-08 Electric Power Research Institute, Inc. METHODS FOR REDUCING NOx IN SCR FOSSIL-FUEL FIRED BOILERS
JP5686036B2 (ja) * 2011-05-13 2015-03-18 トヨタ自動車株式会社 内燃機関の制御装置
US8621845B2 (en) * 2011-08-17 2014-01-07 GM Global Technology Operations LLC Passive SCR control system and method
KR101317411B1 (ko) * 2011-10-13 2013-10-18 기아자동차주식회사 매연 필터 재생 시스템 및 그 방법
ES2633727T3 (es) 2011-11-07 2017-09-25 Toyota Jidosha Kabushiki Kaisha Dispositivo de limpieza de gases de escape para motor de combustión interna
WO2013069115A1 (ja) 2011-11-09 2013-05-16 トヨタ自動車株式会社 内燃機関の排気浄化装置
WO2013080328A1 (ja) 2011-11-30 2013-06-06 トヨタ自動車株式会社 内燃機関の排気浄化装置
US9028763B2 (en) 2011-11-30 2015-05-12 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
KR101316867B1 (ko) * 2011-12-06 2013-10-08 현대자동차주식회사 배기 가스 정화 시스템 및 그 방법
JP5392411B1 (ja) 2012-02-07 2014-01-22 トヨタ自動車株式会社 内燃機関の排気浄化装置
DE102012006448B4 (de) * 2012-03-30 2023-05-17 Man Truck & Bus Se Verfahren zur Anwendung in Verbindung mit einer Abgasnachbehandlungsanlage
US20150285118A1 (en) * 2012-05-24 2015-10-08 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification apparatus for an internal combustion engine
WO2014033838A1 (ja) 2012-08-28 2014-03-06 トヨタ自動車株式会社 火花点火式内燃機関の排気浄化装置
CN104204434B (zh) * 2013-02-20 2016-12-07 丰田自动车株式会社 内燃机的排气净化装置
SE539631C2 (sv) 2013-03-06 2017-10-24 Scania Cv Ab Anordning och förfarande för att vid start av en motor minska oönskade emissioner från nämnda motor
CN103184941B (zh) * 2013-04-15 2015-10-28 清华大学 一种天然气发动机及其燃烧方法
US20150107226A1 (en) * 2013-10-18 2015-04-23 Cummins Ip, Inc. Gasoline dithering for spark-ignited gaseous fuel internal combustion engine
JP2015151929A (ja) * 2014-02-14 2015-08-24 いすゞ自動車株式会社 排気浄化装置及び排気浄化装置の制御方法
US9228469B2 (en) * 2014-04-15 2016-01-05 General Electric Company Exhaust aftertreatement system with catalytic deactivation monitoring
JP6110960B2 (ja) * 2014-10-24 2017-04-05 株式会社Ａｇｏｏｐ 人口推定装置、プログラム及び人口推定方法
AT516469B1 (de) * 2014-11-07 2018-06-15 Avl List Gmbh Verfahren zur gezielten generierung von nh3 während des regenerationsvorgangs eines nox-speicherkatalysators
JP6102907B2 (ja) * 2014-12-26 2017-03-29 トヨタ自動車株式会社 排気浄化装置の劣化診断装置
KR101673352B1 (ko) * 2015-03-30 2016-11-07 현대자동차 주식회사 배기 가스 정화 장치의 린 녹스 트랩에서 발생되는 암모니아의 양을 계산하는 방법 및 배기 가스 정화 장치
JP6287996B2 (ja) * 2015-08-06 2018-03-07 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP6350444B2 (ja) * 2015-08-10 2018-07-04 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP6661921B2 (ja) * 2015-08-28 2020-03-11 三菱自動車工業株式会社 内燃機関の排ガス浄化システム
US10323594B2 (en) * 2016-06-17 2019-06-18 Ford Global Technologies, Llc Methods and systems for treating vehicle emissions
JP6988648B2 (ja) * 2018-03-30 2022-01-05 トヨタ自動車株式会社 内燃機関の排気浄化装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09133032A (ja) * 1995-11-10 1997-05-20 Toyota Motor Corp 内燃機関の排気浄化装置
JPH102219A (ja) * 1996-04-19 1998-01-06 Toyota Motor Corp 内燃機関の排気浄化装置
JPH1130117A (ja) * 1997-05-12 1999-02-02 Toyota Motor Corp 内燃機関の排気浄化装置
JPH11511226A (ja) * 1995-11-09 1999-09-28 トヨタ自動車株式会社 内燃機関の排気を浄化する方法および装置
JP2000356125A (ja) * 1999-06-14 2000-12-26 Honda Motor Co Ltd 内燃機関の排気ガス浄化装置
JP2001140630A (ja) 1999-11-19 2001-05-22 Hitachi Ltd 内燃機関の排ガス浄化装置
JP2004211679A (ja) 2002-12-30 2004-07-29 Southwest Research Inst 内燃機関用ＮＯｘ後処理装置および方法
JP2006183477A (ja) * 2004-12-27 2006-07-13 Honda Motor Co Ltd 内燃機関の排気浄化装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6345496B1 (en) * 1995-11-09 2002-02-12 Toyota Jidosha Kabushiki Kaisha Method and device for purifying exhaust gas of an engine
JP3702544B2 (ja) * 1996-03-22 2005-10-05 トヨタ自動車株式会社 内燃機関の排気浄化装置
US7332135B2 (en) * 2002-10-22 2008-02-19 Ford Global Technologies, Llc Catalyst system for the reduction of NOx and NH3 emissions
DE10300298A1 (de) * 2003-01-02 2004-07-15 Daimlerchrysler Ag Abgasnachbehandlungseinrichtung und -verfahren
US20070012032A1 (en) * 2005-07-12 2007-01-18 Eaton Corporation Hybrid system comprising HC-SCR, NOx-trapping, and NH3-SCR for exhaust emission reduction
DE102006043083A1 (de) * 2005-11-14 2007-06-28 Robert Bosch Gmbh Verfahren und Vorrichtung zur Temperaturführung in einer Abgasnachbehandlungsanlage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11511226A (ja) * 1995-11-09 1999-09-28 トヨタ自動車株式会社 内燃機関の排気を浄化する方法および装置
JPH09133032A (ja) * 1995-11-10 1997-05-20 Toyota Motor Corp 内燃機関の排気浄化装置
JPH102219A (ja) * 1996-04-19 1998-01-06 Toyota Motor Corp 内燃機関の排気浄化装置
JPH1130117A (ja) * 1997-05-12 1999-02-02 Toyota Motor Corp 内燃機関の排気浄化装置
JP2000356125A (ja) * 1999-06-14 2000-12-26 Honda Motor Co Ltd 内燃機関の排気ガス浄化装置
JP2001140630A (ja) 1999-11-19 2001-05-22 Hitachi Ltd 内燃機関の排ガス浄化装置
JP2004211679A (ja) 2002-12-30 2004-07-29 Southwest Research Inst 内燃機関用ＮＯｘ後処理装置および方法
JP2006183477A (ja) * 2004-12-27 2006-07-13 Honda Motor Co Ltd 内燃機関の排気浄化装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2149684A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102137990A (zh) * 2009-11-12 2011-07-27 丰田自动车株式会社 内燃机的排气净化系统

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