AU5618598A - Method and apparatus for reducing harmful emissions from a lean-burn engine by urea injection scr - Google Patents

Method and apparatus for reducing harmful emissions from a lean-burn engine by urea injection scr

Info

Publication number
AU5618598A
AU5618598A AU56185/98A AU5618598A AU5618598A AU 5618598 A AU5618598 A AU 5618598A AU 56185/98 A AU56185/98 A AU 56185/98A AU 5618598 A AU5618598 A AU 5618598A AU 5618598 A AU5618598 A AU 5618598A
Authority
AU
Australia
Prior art keywords
lean
urea injection
burn engine
harmful emissions
reducing harmful
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU56185/98A
Inventor
Eric Balles
John E Hofmann
Jeremy D. Peter-Hoblyn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clean Diesel Technologies Inc
Original Assignee
Clean Diesel Technologies Inc
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 Clean Diesel Technologies Inc filed Critical Clean Diesel Technologies Inc
Publication of AU5618598A publication Critical patent/AU5618598A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • F01N3/18—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]
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
    • B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B01F25/103—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components with additional mixing means other than vortex mixers, e.g. the vortex chamber being positioned in another mixing chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—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
    • 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
    • F01N2240/40—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 hydrolysis 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
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • 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
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • 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
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (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)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
AU56185/98A 1996-12-20 1997-12-22 Method and apparatus for reducing harmful emissions from a lean-burn engine by urea injection scr Abandoned AU5618598A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US77227596A 1996-12-20 1996-12-20
US08772275 1996-12-20
PCT/US1997/023796 WO1998028070A1 (en) 1996-12-20 1997-12-22 Method and apparatus for reducing harmful emissions from a lean-burn engine by urea injection scr

Publications (1)

Publication Number Publication Date
AU5618598A true AU5618598A (en) 1998-07-17

Family

ID=25094523

Family Applications (1)

Application Number Title Priority Date Filing Date
AU56185/98A Abandoned AU5618598A (en) 1996-12-20 1997-12-22 Method and apparatus for reducing harmful emissions from a lean-burn engine by urea injection scr

Country Status (2)

Country Link
AU (1) AU5618598A (en)
WO (1) WO1998028070A1 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19738859A1 (en) * 1997-09-05 1999-03-11 Bosch Gmbh Robert Mixture dispenser
DE19855385A1 (en) * 1998-12-01 2000-06-08 Bosch Gmbh Robert Device for the aftertreatment of exhaust gases from an internal combustion engine
US6601385B2 (en) * 2001-10-17 2003-08-05 Fleetguard, Inc. Impactor for selective catalytic reduction system
US20030226312A1 (en) * 2002-06-07 2003-12-11 Roos Joseph W. Aqueous additives in hydrocarbonaceous fuel combustion systems
DE10342003A1 (en) * 2003-09-05 2005-03-31 Robert Bosch Gmbh Apparatus for processing a reducing agent precursor solution for exhaust aftertreatment
JP2005105970A (en) * 2003-09-30 2005-04-21 Nissan Diesel Motor Co Ltd Exhaust emission control device of engine
ATE406507T1 (en) 2004-10-11 2008-09-15 Volvo Lastvagnar Ab SYSTEM AND METHOD FOR REDUCING NITROGEN OXIDES FROM EXHAUST GASES PRODUCED BY LEAN-BURNING INTERNAL ENGINES
US20080279732A1 (en) * 2005-02-16 2008-11-13 Imi Vision Limited Exhaust as Treatment
US20080314027A1 (en) * 2005-02-16 2008-12-25 Imi Vision Limited Exhaust Gas Treatment
US7581387B2 (en) 2005-02-28 2009-09-01 Caterpillar Inc. Exhaust gas mixing system
RU2375121C2 (en) * 2005-05-20 2009-12-10 Грундфос Нонокс А/С Dispersal of fluid mediums by means of mutual impact of fluid mediums flows
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
JP2008196479A (en) 2007-02-09 2008-08-28 Sulzer Chemtech Ag Exhaust gas cleaning system
US8010236B2 (en) 2007-10-30 2011-08-30 Babcock Power Environmental Inc. Adaptive control system for reagent distribution control in SCR reactors
EP2138681B1 (en) 2008-06-27 2019-03-27 Umicore AG & Co. KG Method and device for cleaning diesel exhaust gases
US8171722B2 (en) 2008-12-05 2012-05-08 Caterpillar Inc. Fluid delivery system
DE102010021438B4 (en) * 2010-05-25 2014-01-02 Mtu Friedrichshafen Gmbh exhaust aftertreatment device
DE102010031655A1 (en) * 2010-07-22 2012-01-26 Robert Bosch Gmbh Method for operating pressure-regulated dosing system for selective catalytic reduction catalyzer, utilizing dosing system which comprises dosing valve and actuator, particularly pump motor for uptitration of fluid reducing agent solution
US8943808B2 (en) 2010-09-27 2015-02-03 Caterpillar Inc. Reductant dosing system
US8518354B2 (en) 2011-07-29 2013-08-27 Deere & Company Diesel exhaust fluid formulation having a high ammonium content and a low freezing point
WO2013153606A1 (en) * 2012-04-09 2013-10-17 トヨタ自動車 株式会社 Exhaust purification device for internal combustion engine
US8978364B2 (en) 2012-05-07 2015-03-17 Tenneco Automotive Operating Company Inc. Reagent injector
US8910884B2 (en) 2012-05-10 2014-12-16 Tenneco Automotive Operating Company Inc. Coaxial flow injector
US9511355B2 (en) 2013-11-26 2016-12-06 Clean Diesel Technologies, Inc. (Cdti) System and methods for using synergized PGM as a three-way catalyst
US20140274662A1 (en) 2013-03-15 2014-09-18 Cdti Systems and Methods for Variations of ZPGM Oxidation Catalysts Compositions
US9511350B2 (en) 2013-05-10 2016-12-06 Clean Diesel Technologies, Inc. (Cdti) ZPGM Diesel Oxidation Catalysts and methods of making and using same
FI20135295L (en) * 2013-03-26 2014-09-27 Aalto Korkeakoulusäätiö SCR systems for the aftertreatment of diesel engine exhaust gases and the corresponding process using SCR technology
US9771534B2 (en) 2013-06-06 2017-09-26 Clean Diesel Technologies, Inc. (Cdti) Diesel exhaust treatment systems and methods
US9545626B2 (en) 2013-07-12 2017-01-17 Clean Diesel Technologies, Inc. Optimization of Zero-PGM washcoat and overcoat loadings on metallic substrate
US9511358B2 (en) 2013-11-26 2016-12-06 Clean Diesel Technologies, Inc. Spinel compositions and applications thereof
US9475004B2 (en) 2014-06-06 2016-10-25 Clean Diesel Technologies, Inc. Rhodium-iron catalysts
US9731279B2 (en) 2014-10-30 2017-08-15 Clean Diesel Technologies, Inc. Thermal stability of copper-manganese spinel as Zero PGM catalyst for TWC application
US9700841B2 (en) 2015-03-13 2017-07-11 Byd Company Limited Synergized PGM close-coupled catalysts for TWC applications
US9951706B2 (en) 2015-04-21 2018-04-24 Clean Diesel Technologies, Inc. Calibration strategies to improve spinel mixed metal oxides catalytic converters
RU2617396C2 (en) * 2015-07-01 2017-04-24 Государственное научное учреждение Всероссийский научно-исследовательский институт ветеринарной вирусологии и микробиологии Россельхозакадемии Device for highly disperse aerosols production
RU2623396C1 (en) * 2015-12-22 2017-06-26 Государственное научное учреждение Всероссийский научно-исследовательский институт ветеринарной вирусологии и микробиологии Российской академии сельскохозяйственных наук Generator of high-dispersed aerosols
US10533472B2 (en) 2016-05-12 2020-01-14 Cdti Advanced Materials, Inc. Application of synergized-PGM with ultra-low PGM loadings as close-coupled three-way catalysts for internal combustion engines
US9861964B1 (en) 2016-12-13 2018-01-09 Clean Diesel Technologies, Inc. Enhanced catalytic activity at the stoichiometric condition of zero-PGM catalysts for TWC applications
US10265684B2 (en) 2017-05-04 2019-04-23 Cdti Advanced Materials, Inc. Highly active and thermally stable coated gasoline particulate filters
CN108005762B (en) * 2017-11-17 2019-11-01 国网山东省电力公司荣成市供电公司 A kind of SCR system of electric engineering car
CN113606020B (en) * 2021-07-16 2022-03-22 江苏伟博动力技术有限公司 Gas-liquid mixer for waste gas purification

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900554A (en) * 1973-03-16 1975-08-19 Exxon Research Engineering Co Method for the reduction of the concentration of no in combustion effluents using ammonia
US4107272A (en) * 1973-05-21 1978-08-15 Hitachi, Ltd. Process for removing nitrogen oxides using ammonia as a reductant and sulfated metallic catalysts
US4208386A (en) * 1976-03-03 1980-06-17 Electric Power Research Institute, Inc. Urea reduction of NOx in combustion effluents
JPS5915022B2 (en) * 1976-03-26 1984-04-07 株式会社日立製作所 Catalyst for removing nitrogen oxides from exhaust gas
US4393031A (en) * 1979-02-22 1983-07-12 Werner Henke Process for efficiently removing oxides of nitrogen from exhaust gas
DE3440975A1 (en) * 1984-11-09 1986-05-15 Neumünstersche Maschinen- und Apparatebau GmbH (Neumag), 2350 Neumünster METHOD AND DEVICE FOR PULLING CABLES FROM SYNTHETIC THREADS
US5057293A (en) * 1987-02-13 1991-10-15 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
US5266083A (en) * 1988-12-28 1993-11-30 Platinum Plus, Inc. Method for reducing pollution emissions from a diesel engine
US5139754A (en) * 1989-09-12 1992-08-18 Fuel Tech, Inc. Catalytic/non-catalytic combination process for nitrogen oxides reduction
US4971254A (en) * 1989-11-28 1990-11-20 Siemens-Bendix Automotive Electronics L.P. Thin orifice swirl injector nozzle
US4997631A (en) * 1990-03-07 1991-03-05 Fuel Tech, Inc. Process for reducing nitrogen oxides without generating nitrous oxide
US5281403B1 (en) * 1991-09-27 1996-06-11 Noell Inc Method for converting urea to ammonia
CA2088713C (en) * 1992-02-24 1999-11-16 Hans Thomas Hug Cleaning exhaust gases from combustion installations
US5489419A (en) * 1992-10-13 1996-02-06 Nalco Fuel Tech Process for pollution control
JP2560253B2 (en) * 1994-05-18 1996-12-04 工業技術院長 Method for producing and regenerating ion exchanger for cesium separation

Also Published As

Publication number Publication date
WO1998028070A1 (en) 1998-07-02

Similar Documents

Publication Publication Date Title
AU5618598A (en) Method and apparatus for reducing harmful emissions from a lean-burn engine by urea injection scr
AU2434597A (en) Method and apparatus for reducing harmful emissions from a diesel engine by urea injection scr
GB2328626B (en) Apparatus and method for regenerating NOx catalyst for diesel engine
AU2253597A (en) Method and apparatus for reducing harmful emissions from a diesel engine by post combustion catalyst injection
AU1115000A (en) Reducing nox emissions from an engine by temperature-controlled urea injection for selective catalytic reduction
AU3834395A (en) Method for reducing harmful emissions from two-stroke engines
ZA973364B (en) System for reduction of harmful exhaust emissions from diesel engines.
GB2308820B (en) Exhaust denitration for diesel engines
AU6548996A (en) Methods for reducing harmful emissions from a diesel engine
GB2348090B (en) A system and method for controlling an internal combustion engine
AU2904895A (en) Apparatus and method for reducing particulate emissions from combustion processes
AU9116698A (en) Method of reducing internal combustion engine emissions, and system for same
EP0659992A3 (en) System and method for controlling internal combustion engine.
AU7359194A (en) Method for reducing emissions of nox and particulates from a diesel engine
EP0945602A3 (en) Direct-injection diesel engine and combustion method for the same
AU7762698A (en) Method and device for reducing nitrogen oxides in an scr catalyst
GB9724877D0 (en) Exhaust emission control device for diesel engines
EP0659993A3 (en) System and method for controlling an internal combustion engine.
AU3054597A (en) System for reduction of harmful exhaust emissions from diesel engines
AU2654597A (en) Device and method for reducing emissions in catalytic converter exhaust systems
GB9500078D0 (en) Method for reducing hyrocarbon emissions from an internal combustion engine
HK1042266A1 (en) Catalyzed particulate oxidizer for reducing particulate emissions from a diesel engine and method
GB9725954D0 (en) Method and system for controlling combustion stability for lean-burn engines
EP0657636A3 (en) Control system and method for turbocharged internal combustion engines.
EP1180390A4 (en) Exhaust emission control system for internal combustion engines, exhaust emission control method and exhaust emission control catalyst