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FR3083821B1 - KIT FOR REDUCING NITROGEN OXIDES FLOWING IN AN INTERNAL COMBUSTION ENGINE EXHAUST GAS LINE. - Google Patents

KIT FOR REDUCING NITROGEN OXIDES FLOWING IN AN INTERNAL COMBUSTION ENGINE EXHAUST GAS LINE. Download PDF

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Publication number
FR3083821B1
FR3083821B1 FR1856553A FR1856553A FR3083821B1 FR 3083821 B1 FR3083821 B1 FR 3083821B1 FR 1856553 A FR1856553 A FR 1856553A FR 1856553 A FR1856553 A FR 1856553A FR 3083821 B1 FR3083821 B1 FR 3083821B1
Authority
FR
France
Prior art keywords
exhaust gas
gas line
nitrogen oxides
combustion engine
internal combustion
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.)
Active
Application number
FR1856553A
Other languages
French (fr)
Other versions
FR3083821A1 (en
Inventor
Manuel Denayrolles
Pierre Guyot
Thierry Couturier
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.)
Horse Powertrain Solutions SL
Original Assignee
Renault SA
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 Renault SA filed Critical Renault SA
Priority to FR1856553A priority Critical patent/FR3083821B1/en
Publication of FR3083821A1 publication Critical patent/FR3083821A1/en
Application granted granted Critical
Publication of FR3083821B1 publication Critical patent/FR3083821B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0093—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are of the same type
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
    • 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
    • F01N2240/20—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 flow director or deflector
    • 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
    • F01N2610/01—Adding substances to exhaust gases the substance being catalytic material in liquid form
    • 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
    • F01N2610/06—Adding substances to exhaust gases the substance being in the gaseous form
    • 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
    • F01N3/24—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
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

L'invention concerne un ensemble pour réduire les oxydes d'azote circulant dans une ligne de gaz d'échappement (100) de moteur à combustion interne, ledit ensemble comprenant : - un ou plusieurs catalyseurs de réduction sélective des oxydes d'azote disposés dans ladite ligne de gaz d'échappement (100), - un premier moyen injecteur (420) apte à injecter de l'ammoniac gazeux dans ladite ligne de gaz d'échappement (100), - un deuxième moyen injecteur (440) apte à injecter de l'urée liquide dans ladite ligne de gaz d'échappement (100), et - un ou plusieurs mélangeurs (60) disposés dans ladite ligne de gaz d'échappement (100), chacun desdits mélangeurs (60) étant situés entre lesdits catalyseurs de réduction sélective des oxydes d'azote et lesdits premier et deuxième moyens injecteurs (420, 440), lesdits premier et deuxième moyens injecteurs (420, 440) étant situés en amont dudit ou desdits catalyseurs de réduction sélective des oxydes d'azote.The invention relates to an assembly for reducing nitrogen oxides circulating in an exhaust gas line (100) of an internal combustion engine, said assembly comprising: one or more catalysts for the selective reduction of nitrogen oxides arranged in said exhaust gas line (100), - a first injector means (420) capable of injecting gaseous ammonia into said exhaust gas line (100), - a second injector means (440) capable of injecting liquid urea in said exhaust gas line (100), and - one or more mixers (60) arranged in said exhaust gas line (100), each of said mixers (60) being located between said catalysts selective reduction of nitrogen oxides and said first and second injector means (420, 440), said first and second injector means (420, 440) being located upstream of said one or more catalysts for selective reduction of nitrogen oxides.

FR1856553A 2018-07-16 2018-07-16 KIT FOR REDUCING NITROGEN OXIDES FLOWING IN AN INTERNAL COMBUSTION ENGINE EXHAUST GAS LINE. Active FR3083821B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1856553A FR3083821B1 (en) 2018-07-16 2018-07-16 KIT FOR REDUCING NITROGEN OXIDES FLOWING IN AN INTERNAL COMBUSTION ENGINE EXHAUST GAS LINE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1856553A FR3083821B1 (en) 2018-07-16 2018-07-16 KIT FOR REDUCING NITROGEN OXIDES FLOWING IN AN INTERNAL COMBUSTION ENGINE EXHAUST GAS LINE.

Publications (2)

Publication Number Publication Date
FR3083821A1 FR3083821A1 (en) 2020-01-17
FR3083821B1 true FR3083821B1 (en) 2021-06-25

Family

ID=63896337

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1856553A Active FR3083821B1 (en) 2018-07-16 2018-07-16 KIT FOR REDUCING NITROGEN OXIDES FLOWING IN AN INTERNAL COMBUSTION ENGINE EXHAUST GAS LINE.

Country Status (1)

Country Link
FR (1) FR3083821B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022178359A1 (en) * 2021-02-22 2022-08-25 Cummins Emission Solutions Inc. Exhaust gas aftertreatment system
CN113153501B (en) * 2021-05-07 2022-11-29 潍柴动力股份有限公司 Urea injection amount control method and related equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7799289B2 (en) * 2007-07-31 2010-09-21 Caterpillar Inc Exhaust treatment system with NO2 control
WO2013095214A1 (en) * 2011-12-23 2013-06-27 Volvo Lastvagnar Ab Exhaust aftertreatment system and method for operating the system
GB2546179B (en) * 2014-07-18 2020-08-26 Cummins Emission Solutions Inc Exhaust after-treatment with dual closed-loop reductant dosers
US9616385B1 (en) * 2015-09-30 2017-04-11 Deere & Company System and method for regulating exhaust emissions
US10125646B2 (en) * 2016-04-13 2018-11-13 Johnson Matthey Public Limited Company Exhaust system for a diesel engine

Also Published As

Publication number Publication date
FR3083821A1 (en) 2020-01-17

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