KR100535784B1 - 온도가 조절된 우레아 분사에 의해 엔진으로부터 NOx 배출을 감소시키는 방법 - Google Patents
온도가 조절된 우레아 분사에 의해 엔진으로부터 NOx 배출을 감소시키는 방법 Download PDFInfo
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- KR100535784B1 KR100535784B1 KR10-1999-7008988A KR19997008988A KR100535784B1 KR 100535784 B1 KR100535784 B1 KR 100535784B1 KR 19997008988 A KR19997008988 A KR 19997008988A KR 100535784 B1 KR100535784 B1 KR 100535784B1
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- South Korea
- Prior art keywords
- urea
- emissions
- reduce
- reagent solution
- exhaust gas
- Prior art date
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Classifications
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- 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
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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
- F01N9/00—Electrical control of exhaust gas treating apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- F01N2240/02—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/16—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
- F01N2260/022—Exhaust treating devices having provisions not otherwise provided for for cooling the device using air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
- F01N2260/024—Exhaust treating devices having provisions not otherwise provided for for cooling the device using a liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
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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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2610/00—Adding substances to exhaust gases
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1473—Overflow or return means for the substances, e.g. conduits or valves for the return path
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
- F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
- F01N2900/1806—Properties of reducing agent or dosing system
- F01N2900/1811—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
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- F01N2900/1806—Properties of reducing agent or dosing system
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- 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
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- 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
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- Y02T10/00—Road transport of goods or passengers
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- Y02T10/12—Improving ICE efficiencies
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- 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
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- 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
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- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Treating Waste Gases (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (14)
- 선택적 촉매 NOx 환원에 효과적인 SCR 반응기 및 우레아를 이용하여 린번 엔진으로부터 NOx 배출을 감소시키는 방법으로서,암멜리드; 암멜린; 탄산암모늄; 중탄산암모늄; 암모늄 카바메이트; 암모늄 시아네이트; 황산 및 인산을 포함하는 무기산의 암모늄염; 포름산 및 아세트산을 포함하는 유기산의 암모늄 염; 뷰렛; 시아누르산; 이소시안산; 멜라민 및 트리시아노우레아;중 하나 이상의 우레아를 포함하는 수성 우레아 시제 용액을 저장 용기와 분사기 사이로 연속적으로 공급하여, 상기 우레아 시제 용액이 분사기에 냉각을 제공하고, 상기 분사기로부터 저장 용기로 복귀하는 우레아가 140℃ 미만으로 유지되도록 하는 단계;상기 SCR에 적합한 배기 가스 온도에서 배기 가스에 우레아 시제 용액을 분사하는 단계; 및상기 배기 가스를 SCR 반응기로 통과시키는 단계;를 포함하는,NOx 배출 감소 방법.
- 제 1 항에 있어서,상기 우레아 시제 용액이 25 중량% 이상의 우레아를 함유하는,NOx 배출 감소 방법.
- 제 1 항에 있어서,상기 배기 가스 온도가 180 내지 650℃의 범위내에 있는,NOx 배출 감소 방법.
- 제 1 항에 있어서,상기 우레아 시제 용액이 분사되기 이전에 140℃ 미만의 온도로 유지되는,NOx 배출 감소 방법.
- 제 1 항에 있어서,상기 우레아 시제 용액이 2atm (30psi) 이상의 압력으로 배기 가스에 분사되는,NOx 배출 감소 방법.
- 제 1 항에 있어서,상기 우레아 시제 용액이 분사되기 이전에 전체적으로 또는 부분적으로 보조 가열 수단에 의해 가열되는,NOx 배출 감소 방법.
- 제 1 항에 있어서,상기 우레아 시제 용액이 분사되기 이전에 배출물로부터의 열전달에 의해 전체적으로 또는 부분적으로 가열되는,NOx 배출 감소 방법.
- 제 1 항에 있어서,상기 우레아 시제 용액이 엔진의 배기 밸브와 터보차저 배기 터빈 사이의 배출물에 도입되는,NOx 배출 감소 방법.
- 제 1 항에 있어서,상기 우레아 시제가 SCR 촉매와 밀착 결합된 배출물에 도입되는,NOx 배출 감소 방법.
- 제 1 항에 있어서, 상기 우레아 시제 용액의 배출물로의 도입이 엔진 관리 시스템과 통합된 제어기에 의해 제어되는,NOx 배출 감소 방법.
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Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/831,209 | 1997-04-02 | ||
US08/831,209 US5976475A (en) | 1997-04-02 | 1997-04-02 | Reducing NOx emissions from an engine by temperature-controlled urea injection for selective catalytic reduction |
US8/831,209 | 1997-04-02 | ||
PCT/US1998/006325 WO1998043732A1 (en) | 1997-04-02 | 1998-03-31 | REDUCING NOx EMISSIONS FROM AN ENGINE BY TEMPERATURE-CONTROLLED UREA INJECTION |
Publications (2)
Publication Number | Publication Date |
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KR20010005911A KR20010005911A (ko) | 2001-01-15 |
KR100535784B1 true KR100535784B1 (ko) | 2005-12-12 |
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ID=25258542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR10-1999-7008988A KR100535784B1 (ko) | 1997-04-02 | 1998-03-31 | 온도가 조절된 우레아 분사에 의해 엔진으로부터 NOx 배출을 감소시키는 방법 |
Country Status (13)
Country | Link |
---|---|
US (1) | US5976475A (ko) |
EP (1) | EP0975417B1 (ko) |
JP (1) | JP4204647B2 (ko) |
KR (1) | KR100535784B1 (ko) |
CN (1) | CN1124176C (ko) |
AT (1) | ATE304893T1 (ko) |
AU (1) | AU6790498A (ko) |
BR (1) | BR9808459B1 (ko) |
CA (1) | CA2285545C (ko) |
DE (1) | DE69831661T2 (ko) |
DK (1) | DK0975417T3 (ko) |
ES (1) | ES2245479T3 (ko) |
WO (1) | WO1998043732A1 (ko) |
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KR101474528B1 (ko) * | 2010-12-07 | 2014-12-22 | 테네코 오토모티브 오퍼레이팅 컴파니 인코포레이티드 | 시약 탱크 표준화 시스템 |
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JPH11171535A (ja) * | 1997-12-05 | 1999-06-29 | Mitsubishi Heavy Ind Ltd | アンモニア発生方法及び排ガス処理方法 |
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AU2156000A (en) * | 1998-11-23 | 2000-06-13 | Mobil Oil Corporation | Liquid urea exhaust gas treatment additive |
EP1016446B1 (en) * | 1998-12-28 | 2004-06-30 | Miyoshi Yushi Kabushiki Kaisha | Method of making flue gas harmless |
DE19913462A1 (de) * | 1999-03-25 | 2000-09-28 | Man Nutzfahrzeuge Ag | Verfahren zur thermischen Hydrolyse und Dosierung von Harnstoff bzw. wässriger Harnstofflösung in einem Reaktor |
DE19919472C2 (de) * | 1999-04-29 | 2001-04-19 | Bosch Gmbh Robert | Vorrichtung und Verfahren zur Detektion von Ammoniak |
CA2375456A1 (en) * | 1999-06-09 | 2000-12-14 | Clean Diesel Technologies, Inc. | Methods and compositions for assuring reduction of nox emissions from an engine by selective catalytic reduction |
DE19947198B4 (de) * | 1999-10-01 | 2008-05-15 | Robert Bosch Gmbh | Vorrichtung zum Nachbehandeln von Abgasen einer Brennkraftmaschine |
US6363771B1 (en) * | 1999-11-24 | 2002-04-02 | Caterpillar Inc. | Emissions diagnostic system |
US6315969B1 (en) * | 2000-02-18 | 2001-11-13 | Mitsubishi Heavy Industries America, Inc. | Gas re-circulation selective catalytic reduction system with heat trace |
US6606856B1 (en) | 2000-03-03 | 2003-08-19 | The Lubrizol Corporation | Process for reducing pollutants from the exhaust of a diesel engine |
SE516624C2 (sv) * | 2000-06-14 | 2002-02-05 | Volvo Lastvagnar Ab | Anordning för insprutning av urea i ett turbinhus i ett avgassystem |
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- 1998-03-31 DK DK98913326T patent/DK0975417T3/da active
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Also Published As
Publication number | Publication date |
---|---|
AU6790498A (en) | 1998-10-22 |
CN1257435A (zh) | 2000-06-21 |
CA2285545C (en) | 2007-02-13 |
DE69831661T2 (de) | 2006-05-04 |
EP0975417A1 (en) | 2000-02-02 |
BR9808459A (pt) | 2000-05-23 |
DE69831661D1 (de) | 2006-02-02 |
BR9808459B1 (pt) | 2009-08-11 |
CN1124176C (zh) | 2003-10-15 |
EP0975417A4 (en) | 2000-02-02 |
JP4204647B2 (ja) | 2009-01-07 |
JP2001518830A (ja) | 2001-10-16 |
ATE304893T1 (de) | 2005-10-15 |
EP0975417B1 (en) | 2005-09-21 |
ES2245479T3 (es) | 2006-01-01 |
KR20010005911A (ko) | 2001-01-15 |
WO1998043732A1 (en) | 1998-10-08 |
DK0975417T3 (da) | 2006-01-16 |
CA2285545A1 (en) | 1998-10-08 |
US5976475A (en) | 1999-11-02 |
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