FR3091926B1 - Méthode et système pour déterminer la concentration d’une solution d’urée - Google Patents

Méthode et système pour déterminer la concentration d’une solution d’urée Download PDF

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Publication number
FR3091926B1
FR3091926B1 FR1900474A FR1900474A FR3091926B1 FR 3091926 B1 FR3091926 B1 FR 3091926B1 FR 1900474 A FR1900474 A FR 1900474A FR 1900474 A FR1900474 A FR 1900474A FR 3091926 B1 FR3091926 B1 FR 3091926B1
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FR
France
Prior art keywords
urea solution
concentration
determining
liquid phase
solid phase
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
FR1900474A
Other languages
English (en)
Other versions
FR3091926A1 (fr
Inventor
Jean Milpied
Martin Magnusson
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.)
Measurement Specialties Chengdu Ltd Cn
Measurement Specialties China Ltd Cn
Te Connectivity Sensors France Fr
Original Assignee
Wema Environmental Tech Shanghai Co Ltd
MEAS France SAS
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 Wema Environmental Tech Shanghai Co Ltd, MEAS France SAS filed Critical Wema Environmental Tech Shanghai Co Ltd
Priority to FR1900474A priority Critical patent/FR3091926B1/fr
Publication of FR3091926A1 publication Critical patent/FR3091926A1/fr
Application granted granted Critical
Publication of FR3091926B1 publication Critical patent/FR3091926B1/fr
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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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
    • 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
    • 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
    • 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
    • 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
    • F01N2900/1818—Concentration of the reducing agent
    • 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
    • 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
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Méthode et système pour déterminer la concentration d’une solution d’urée La présente invention se rapporte à une méthode ainsi qu’à un système pour déterminer la concentration d’une solution d’urée, en particulier dans un système de réduction catalytique sélective, à partir de la température de changement d’état entre une phase solide vers une phase liquide ou d’une phase liquide vers une phase solide de la solution d’urée. Figure pour l’abrégé : Fig. 3
FR1900474A 2019-01-18 2019-01-18 Méthode et système pour déterminer la concentration d’une solution d’urée Active FR3091926B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1900474A FR3091926B1 (fr) 2019-01-18 2019-01-18 Méthode et système pour déterminer la concentration d’une solution d’urée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1900474A FR3091926B1 (fr) 2019-01-18 2019-01-18 Méthode et système pour déterminer la concentration d’une solution d’urée
FR1900474 2019-01-18

Publications (2)

Publication Number Publication Date
FR3091926A1 FR3091926A1 (fr) 2020-07-24
FR3091926B1 true FR3091926B1 (fr) 2021-07-02

Family

ID=67742502

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1900474A Active FR3091926B1 (fr) 2019-01-18 2019-01-18 Méthode et système pour déterminer la concentration d’une solution d’urée

Country Status (1)

Country Link
FR (1) FR3091926B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113030399B (zh) * 2021-03-29 2024-02-20 潍柴动力股份有限公司 尿素浓度的确定方法及装置
CN116297825A (zh) * 2023-05-25 2023-06-23 湖北工业大学 尿素浓度检测方法、装置、电子设备及存储介质

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2898681A1 (fr) * 2006-03-16 2007-09-21 Inergy Automotive Systems Res Procede pour determiner la concentration d'un composant dans une solution
WO2009008408A1 (fr) * 2007-07-06 2009-01-15 Mitsui Mining & Smelting Co., Ltd. Dispositif d'identification de point de congélation de liquide, appareil anti-congélation pour réservoir de stockage de liquide l'utilisant et appareil de réduction de gaz d'échappement d'automobile
FR2972489B1 (fr) * 2011-03-10 2013-04-12 Peugeot Citroen Automobiles Sa Procede d'estimation de la concentration en reducteur dans une solution de reduction d'oxydes d'azote et systeme scr
EP3369902B1 (fr) * 2017-03-03 2020-04-22 MEAS France Procédé et système permettant de déterminer la validité d'une concentration d'urée mesurée dans un fluide

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Publication number Publication date
FR3091926A1 (fr) 2020-07-24

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