GB2414692A - Improvements in engine emissions - Google Patents

Improvements in engine emissions Download PDF

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Publication number
GB2414692A
GB2414692A GB0517654A GB0517654A GB2414692A GB 2414692 A GB2414692 A GB 2414692A GB 0517654 A GB0517654 A GB 0517654A GB 0517654 A GB0517654 A GB 0517654A GB 2414692 A GB2414692 A GB 2414692A
Authority
GB
United Kingdom
Prior art keywords
ammonia
fins
urea
exhaust pipe
inlet end
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.)
Granted
Application number
GB0517654A
Other versions
GB0517654D0 (en
GB2414692B (en
Inventor
Martin Vierkotter
Russell Stuart Avens
Berno Lupkes
Clive Henry Buckberry
Martin S Johnson
Keith James Heyes
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.)
IMI Vision Ltd
Original Assignee
IMI Vision Ltd
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
Priority claimed from GB0304746A external-priority patent/GB0304746D0/en
Priority claimed from GB0317051A external-priority patent/GB0317051D0/en
Priority claimed from GB0320704A external-priority patent/GB0320704D0/en
Priority claimed from GB0325818A external-priority patent/GB0325818D0/en
Application filed by IMI Vision Ltd filed Critical IMI Vision Ltd
Publication of GB0517654D0 publication Critical patent/GB0517654D0/en
Publication of GB2414692A publication Critical patent/GB2414692A/en
Application granted granted Critical
Publication of GB2414692B publication Critical patent/GB2414692B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/08—Preparation of ammonia from nitrogenous organic substances
    • C01C1/086—Preparation of ammonia from nitrogenous organic substances from urea
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/90—Injecting reactants
    • 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
    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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]
    • 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
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • 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
    • B01D2251/2062—Ammonia
    • 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
    • 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
    • Y02T10/12—Improving ICE efficiencies

Landscapes

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

Abstract

Apparatus for introducing ammonia into the exhaust pipe of a diesel IC engine whereby harmful NOx in the exhaust gasses may be selectively reduced using an SCR catalyst comprises a number of spaced hollow fins (1, 4) that extend laterally into the exhaust pipe and that are filled with a sintered material (5, 6) that defines a network of passageways extending within each fin (1, 4) from a lower inlet end (2) to an upper outlet end (3). The ammonia is produced in situ by feeding an aqueous solution of urea to the inlet end (2) of the fins, the urea thermally decomposing into, inter alia, ammonia during passage of the solution towards the outlet end (3), via the passageways, where the ammonia issues from the fins and is entrained by the exhaust gasses.

Description

GB 2414692 A continuation (72) Inventor(s): Martin Vierkotter Russell
Stuart Avens Berno Lupkes Clive Henry Buckberry Martin S Johnson Keith James Heyes (74) Agent and/or Address for Service: Barker Brettell 138 Hagley Road, Edgbaston, BIRMINGHAM, B16 9PW, United Kingdom
GB0517654A 2003-03-01 2004-03-01 Improvements in engine emissions Expired - Fee Related GB2414692B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB0304746A GB0304746D0 (en) 2003-03-01 2003-03-01 Improvements in engine emissions
GB0317051A GB0317051D0 (en) 2003-07-22 2003-07-22 Improvements in engine emissions
GB0320704A GB0320704D0 (en) 2003-09-04 2003-09-04 Improvements in engine emissions
GB0325818A GB0325818D0 (en) 2003-11-05 2003-11-05 Improvements in engine emissions
PCT/GB2004/000823 WO2004079171A1 (en) 2003-03-01 2004-03-01 Improvements in engine emissions

Publications (3)

Publication Number Publication Date
GB0517654D0 GB0517654D0 (en) 2005-10-05
GB2414692A true GB2414692A (en) 2005-12-07
GB2414692B GB2414692B (en) 2006-09-13

Family

ID=32966586

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0517654A Expired - Fee Related GB2414692B (en) 2003-03-01 2004-03-01 Improvements in engine emissions

Country Status (2)

Country Link
GB (1) GB2414692B (en)
WO (1) WO2004079171A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120087840A1 (en) * 2009-07-01 2012-04-12 Sebastian Hirschberg Apparatus for the Purification of Exhaust Gases containing NOx

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0616149D0 (en) * 2006-08-15 2006-09-20 Imi Vision Ltd Exhaust gas treatment
JP2008196479A (en) 2007-02-09 2008-08-28 Sulzer Chemtech Ag Exhaust gas cleaning system
CN101109742B (en) * 2007-08-24 2011-05-18 中电投远达环保工程有限公司 Method for testing and analyzing warehouse separated type denitrated catalyzer
US8038952B2 (en) 2008-08-28 2011-10-18 General Electric Company Surface treatments and coatings for flash atomization
DE102008048426A1 (en) * 2008-09-23 2010-04-01 Man Nutzfahrzeuge Aktiengesellschaft Dosing device for dosing a reducing agent, in particular for a selective catalytic reduction, in an exhaust gas stream of an internal combustion engine
FR2936958B1 (en) * 2008-10-13 2011-03-25 Peugeot Citroen Automobiles Sa AQUEOUS AMMONIA UREA DECOMPOSITION DEVICE FOR THE TREATMENT OF EXHAUST GAS
FR2936957B1 (en) * 2008-10-13 2011-04-08 Peugeot Citroen Automobiles Sa AQUEOUS AMMONIA UREA DECOMPOSITION DEVICE FOR THE TREATMENT OF EXHAUST GAS.
KR101122748B1 (en) 2009-04-24 2012-03-23 호성산업개발(주) Exhaust gas purifier and method of exhaust gas purification
NO2496336T3 (en) * 2009-11-05 2018-02-24
CN107106980B (en) * 2014-10-28 2020-07-17 沃尔沃卡车集团 Electrostatic fluid ejection system
EP3222834B1 (en) 2016-03-23 2019-05-08 Volvo Car Corporation Exhaust gas aftertreatment device for an internal combustion engine
GB2570312B (en) * 2018-01-19 2020-04-29 Jaguar Land Rover Ltd Exhaust gas treatment apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1145064A (en) * 1956-04-06 1957-10-22 Exhaust pipe for motor vehicles and others
US5342599A (en) * 1990-09-14 1994-08-30 Cummins Power Generation, Inc. Surface stabilized sources of isocyanic acid
US5968464A (en) * 1997-05-12 1999-10-19 Clean Diesel Technologies, Inc. Urea pyrolysis chamber and process for reducing lean-burn engine NOx emissions by selective catalytic reduction
US6004520A (en) * 1995-12-13 1999-12-21 Daimler-Benz Ag Method for operating a purification device, a purification device and use of the same
EP1348838A1 (en) * 2002-03-26 2003-10-01 Siemens Aktiengesellschaft Exhaust gas purification apparatus and method for regeneration of a particulate filter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5992141A (en) * 1996-04-02 1999-11-30 Kleen Air Systems, Inc. Ammonia injection in NOx control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1145064A (en) * 1956-04-06 1957-10-22 Exhaust pipe for motor vehicles and others
US5342599A (en) * 1990-09-14 1994-08-30 Cummins Power Generation, Inc. Surface stabilized sources of isocyanic acid
US6004520A (en) * 1995-12-13 1999-12-21 Daimler-Benz Ag Method for operating a purification device, a purification device and use of the same
US5968464A (en) * 1997-05-12 1999-10-19 Clean Diesel Technologies, Inc. Urea pyrolysis chamber and process for reducing lean-burn engine NOx emissions by selective catalytic reduction
EP1348838A1 (en) * 2002-03-26 2003-10-01 Siemens Aktiengesellschaft Exhaust gas purification apparatus and method for regeneration of a particulate filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120087840A1 (en) * 2009-07-01 2012-04-12 Sebastian Hirschberg Apparatus for the Purification of Exhaust Gases containing NOx

Also Published As

Publication number Publication date
WO2004079171A1 (en) 2004-09-16
GB0517654D0 (en) 2005-10-05
GB2414692B (en) 2006-09-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20080301