KR100959839B1 - 질소 산화물 저장 촉매의 탈황방법 - Google Patents
질소 산화물 저장 촉매의 탈황방법 Download PDFInfo
- Publication number
- KR100959839B1 KR100959839B1 KR1020030058510A KR20030058510A KR100959839B1 KR 100959839 B1 KR100959839 B1 KR 100959839B1 KR 1020030058510 A KR1020030058510 A KR 1020030058510A KR 20030058510 A KR20030058510 A KR 20030058510A KR 100959839 B1 KR100959839 B1 KR 100959839B1
- Authority
- KR
- South Korea
- Prior art keywords
- desulfurization
- storage catalyst
- catalyst
- temperature
- nitrogen oxide
- Prior art date
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
- B01D53/9481—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start
-
- 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
-
- 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
- B01D53/9481—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start
- B01D53/949—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start for storing sulfur 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
- 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
-
- 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
- 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
- F01N3/0864—Oxygen
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Emergency Medicine (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Catalysts (AREA)
Abstract
Description
Claims (7)
- (i) 린 배출조건하에서 촉매의 온도를 질소 산화물의 열적 탈착이 시작되는 온도까지 상승시키는 단계; 및(ii) 공기/연료 혼합물을 농후화 하는 단계로서, 여기서 상기 농후화는 상기 열적 탈착의 시작시 개시되며, 그리고 상기 열적 탈착이 상기 농후화를 개시하는 신호로서 작용하며, 이에 의해 질소 산화물 저장촉매의 탈황이 야기되는 단계를 포함하며,질소 산화물 저장 촉매가 저장된 질소 산화물과 황산화물을 함유하고, 그리고 린번 엔진의 배출가스 정화시스템의 구성요소인질소 산화물 저장 촉매의 탈황 방법.
- 제 1 항에 있어서, 상기 온도의 상승이 외부 가열 수단 또는 배출가스를 가열하기 위해 엔진-관련 수단을 이용함으로서 발생하는 방법.
- 제 2 항에 있어서, 배출가스를 가열하기 위한 엔진-관련 수단이 추가적인 연료 주입, 늦은 연소 및 다단계 연소로 이루어진 그룹으로부터 선택되는 방법.
- 제 3 항에 있어서, 양론적 조건에 정규화된 공기/연료 비가 탈황중 0.8 에서 0.99사이의 수치까지 낮아지는 방법.
- 제 4 항에 있어서, 탈황의 지속시간이 2 에서 10 초로 제한되는 방법.
- 제 3 항에 있어서, 탈황중, 양론적 조건에 정규화된 공기/연료비가 1 에서 5 Hz 의 주파수로 1 미만의 값과 1 보다 큰 값 사이에서 변조되는 방법.
- 제 1 항에 있어서, 저장 촉매의 가열 중 질소 산화물의 열적 탈착의 시작이, 질소 산화물 저장 촉매의 하류에 배출가스 정화 시스템내로 삽입된 질소 센서를 이용하여 측정되는 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10238771A DE10238771B4 (de) | 2002-08-23 | 2002-08-23 | Verfahren zur Desulfatisierung eines Stickoxid-Speicherkatalysators |
DE10238771.0 | 2002-08-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040018228A KR20040018228A (ko) | 2004-03-02 |
KR100959839B1 true KR100959839B1 (ko) | 2010-05-28 |
Family
ID=30775540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020030058510A KR100959839B1 (ko) | 2002-08-23 | 2003-08-23 | 질소 산화물 저장 촉매의 탈황방법 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6973775B2 (ko) |
EP (1) | EP1391600B1 (ko) |
JP (1) | JP4171681B2 (ko) |
KR (1) | KR100959839B1 (ko) |
BR (1) | BR0303413B1 (ko) |
CA (1) | CA2437069C (ko) |
DE (2) | DE10238771B4 (ko) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3876874B2 (ja) * | 2003-10-28 | 2007-02-07 | トヨタ自動車株式会社 | 触媒再生方法 |
FR2862708B1 (fr) * | 2003-11-24 | 2008-01-18 | Inst Francais Du Petrole | Procede et dispositif de desulfatation d'un piege a oxydes nitriques et de regeneration d'un filtre a particules |
JP4349119B2 (ja) * | 2003-12-19 | 2009-10-21 | いすゞ自動車株式会社 | 排気ガス浄化方法及び排気ガス浄化システム |
US7213395B2 (en) * | 2004-07-14 | 2007-05-08 | Eaton Corporation | Hybrid catalyst system for exhaust emissions reduction |
US7197867B2 (en) * | 2004-10-04 | 2007-04-03 | Southwest Research Institute | Method for the simultaneous desulfation of a lean NOx trap and regeneration of a Diesel particulate filter |
JP4572709B2 (ja) * | 2005-03-18 | 2010-11-04 | トヨタ自動車株式会社 | 内燃機関の排気浄化システム |
US20070056268A1 (en) * | 2005-09-10 | 2007-03-15 | Eaton Corporation | LNT-SCR packaging |
US7063642B1 (en) * | 2005-10-07 | 2006-06-20 | Eaton Corporation | Narrow speed range diesel-powered engine system w/ aftertreatment devices |
US7849678B2 (en) * | 2005-12-02 | 2010-12-14 | Eaton Corporation | Desulfation control strategy |
DE102006025050B4 (de) * | 2006-05-27 | 2014-04-03 | Fev Gmbh | Verfahren und Vorrichtung zum Betrieb einer Abgasnachbehandlungsanlage |
US8209960B2 (en) * | 2006-07-21 | 2012-07-03 | International Engine Intellectual Property Company, Llc | System and method for coupled DPF regeneration and LNT DeNOx |
US20080016851A1 (en) * | 2006-07-21 | 2008-01-24 | Eaton Corporation | System to reduce engine exhaust oxygen using exhaust hydrocarbons and a catalyst positioned upstream of a fuel reformer-LNT system |
US20080022660A1 (en) * | 2006-07-21 | 2008-01-31 | Eaton Corporation | Method for controlled DPF regeneration |
US20080016850A1 (en) * | 2006-07-21 | 2008-01-24 | Eaton Corporation | Simultaneous LNT and DPF regeneration |
US7610751B2 (en) * | 2006-07-21 | 2009-11-03 | Eaton Corporation | Fuel injection before turbocharger |
DE602007004039D1 (de) * | 2006-08-01 | 2010-02-11 | Honda Motor Co Ltd | Schwefelreinigungssteuerungsvorrichtung für einen Verbrennungsmotor |
US20080072575A1 (en) * | 2006-09-21 | 2008-03-27 | Eaton Corporation | Catalyst to improve low temperature deNOx activity in a reformer-LNT exhaust aftertreatment system |
US8459010B2 (en) * | 2010-02-26 | 2013-06-11 | General Electric Company | System and method for controlling nitrous oxide emissions of an internal combustion engine and regeneration of an exhaust treatment device |
GB2502832A (en) * | 2012-06-06 | 2013-12-11 | Gm Global Tech Operations Inc | Controlling a Desuiphation Process of a Lean NOx trap |
US9080524B2 (en) | 2013-02-25 | 2015-07-14 | Cummins, Inc. | System, method, and apparatus for sulfur recovery on an SCR catalyst |
DE102014014636A1 (de) * | 2014-10-01 | 2016-04-07 | Man Diesel & Turbo Se | Verfahren und Steuerungseinrichtung zum Betreiben eines Systems aus mehreren Brennkraftmaschinen |
FR3065486B1 (fr) * | 2017-04-20 | 2021-05-21 | Peugeot Citroen Automobiles Sa | Procede de desulfatation d’un piege a nox d’une ligne d’echappement d’un moteur thermique |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000045754A (ja) | 1998-07-31 | 2000-02-15 | Honda Motor Co Ltd | 内燃機関の排気浄化装置 |
JP2000282848A (ja) | 1999-03-30 | 2000-10-10 | Nissan Motor Co Ltd | 内燃機関の排気浄化装置 |
US20010039798A1 (en) | 1998-06-18 | 2001-11-15 | Ekkehard Pott | Method for desulfating an NOx accumulator catalytic converter |
WO2002006654A1 (de) | 2000-07-13 | 2002-01-24 | Volkswagen Aktiengesellschaft | Verfahren zur adaption eines katalysatortemperatur-sollbereichs für einen nox-speicherkatalysator |
Family Cites Families (14)
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CA2097609C (en) | 1991-10-03 | 1999-03-16 | Shinichi Takeshima | Device for purifying exhaust of internal combustion engine |
DE19636790A1 (de) | 1996-09-11 | 1998-03-12 | Volkswagen Ag | NOx-Abgasreinigungsverfahren |
US5832722A (en) * | 1997-03-31 | 1998-11-10 | Ford Global Technologies, Inc. | Method and apparatus for maintaining catalyst efficiency of a NOx trap |
US5974788A (en) * | 1997-08-29 | 1999-11-02 | Ford Global Technologies, Inc. | Method and apparatus for desulfating a nox trap |
DE19747222C1 (de) * | 1997-10-25 | 1999-03-04 | Daimler Benz Ag | Verbrennungsmotoranlage mit Stickoxid-Speicherkatalysator und Betriebsverfahren hierfür |
DE19750226C1 (de) | 1997-11-13 | 1998-10-29 | Daimler Benz Ag | Motorregelsystem für einen Dieselmotor |
DE19758018A1 (de) * | 1997-12-29 | 1999-07-01 | Volkswagen Ag | Regeneration eines NOx-Speicherkatalysators eines Verbrennungsmotors |
EP1102921B1 (de) | 1998-08-07 | 2002-06-05 | Volkswagen Aktiengesellschaft | VERFAHREN ZUR TEMPERATUR- UND LAMBDAABHÄNGIGEN DE-SULFATIERUNG EINES NO x?-SPEICHERKATALYSATORS |
DE19849082A1 (de) | 1998-08-07 | 2000-02-10 | Volkswagen Ag | Verfahren zur temperatur- und lambdaabhängigen De-Sulfatierung eines NOx-Speicherkatalysators |
DE19851843B4 (de) | 1998-11-10 | 2005-06-09 | Siemens Ag | Verfahren zur Sulfatregeneration eines NOx-Speicherkatalysators für eine Mager-Brennkraftmaschine |
DE19922962C2 (de) * | 1999-05-19 | 2003-02-27 | Daimler Chrysler Ag | Verfahren zur periodischen Desulfatisierung eines Stickoxid- oder Schwefeloxid-Speichers einer Abgasreinigungsanlage |
DE19923481A1 (de) * | 1999-05-21 | 2000-11-23 | Volkswagen Ag | Verfahren zur Entschwefelung von wenigstens einem in einem Abgaskanal einer Verbrennungskraftmaschine angeordneten NOx-Speicherkatalysator |
DE10026762A1 (de) * | 2000-05-30 | 2001-12-06 | Daimler Chrysler Ag | Verfahren zur Desulfatisierung eines NOx-Speicher-Katalysators |
DE10032561A1 (de) * | 2000-07-05 | 2002-07-11 | Volkswagen Ag | Verfahren zur Entschwefelung von wenigstens einem in einem Abgaskanal einer Verbrennungskraftmaschine angeordneten NOx-Speicherkatalysator |
-
2002
- 2002-08-23 DE DE10238771A patent/DE10238771B4/de not_active Expired - Fee Related
-
2003
- 2003-08-08 US US10/637,884 patent/US6973775B2/en not_active Expired - Lifetime
- 2003-08-12 CA CA2437069A patent/CA2437069C/en not_active Expired - Fee Related
- 2003-08-19 EP EP03018624A patent/EP1391600B1/de not_active Expired - Lifetime
- 2003-08-19 DE DE50305883T patent/DE50305883D1/de not_active Expired - Lifetime
- 2003-08-20 JP JP2003296935A patent/JP4171681B2/ja not_active Expired - Fee Related
- 2003-08-21 BR BRPI0303413-5A patent/BR0303413B1/pt not_active IP Right Cessation
- 2003-08-23 KR KR1020030058510A patent/KR100959839B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010039798A1 (en) | 1998-06-18 | 2001-11-15 | Ekkehard Pott | Method for desulfating an NOx accumulator catalytic converter |
JP2000045754A (ja) | 1998-07-31 | 2000-02-15 | Honda Motor Co Ltd | 内燃機関の排気浄化装置 |
JP2000282848A (ja) | 1999-03-30 | 2000-10-10 | Nissan Motor Co Ltd | 内燃機関の排気浄化装置 |
WO2002006654A1 (de) | 2000-07-13 | 2002-01-24 | Volkswagen Aktiengesellschaft | Verfahren zur adaption eines katalysatortemperatur-sollbereichs für einen nox-speicherkatalysator |
Also Published As
Publication number | Publication date |
---|---|
US20040112042A1 (en) | 2004-06-17 |
BR0303413B1 (pt) | 2012-11-27 |
EP1391600A1 (de) | 2004-02-25 |
CA2437069A1 (en) | 2004-02-23 |
CA2437069C (en) | 2011-04-26 |
US6973775B2 (en) | 2005-12-13 |
DE50305883D1 (de) | 2007-01-18 |
DE10238771A1 (de) | 2004-03-04 |
EP1391600B1 (de) | 2006-12-06 |
KR20040018228A (ko) | 2004-03-02 |
JP4171681B2 (ja) | 2008-10-22 |
DE10238771B4 (de) | 2009-01-22 |
BR0303413A (pt) | 2004-09-08 |
JP2004084665A (ja) | 2004-03-18 |
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