FR3052369B1 - PROCESS FOR GENERATING A FAILING CATALYST FROM A POINT OF VIEW OF AN OBD SYSTEM - Google Patents

PROCESS FOR GENERATING A FAILING CATALYST FROM A POINT OF VIEW OF AN OBD SYSTEM Download PDF

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Publication number
FR3052369B1
FR3052369B1 FR1655353A FR1655353A FR3052369B1 FR 3052369 B1 FR3052369 B1 FR 3052369B1 FR 1655353 A FR1655353 A FR 1655353A FR 1655353 A FR1655353 A FR 1655353A FR 3052369 B1 FR3052369 B1 FR 3052369B1
Authority
FR
France
Prior art keywords
monolithic block
catalyst
obd system
generating
point
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
FR1655353A
Other languages
French (fr)
Other versions
FR3052369A1 (en
Inventor
Christophe Thaveau
Xavier Serrier
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.)
Renault SAS
Original Assignee
Renault 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 Renault SAS filed Critical Renault SAS
Priority to FR1655353A priority Critical patent/FR3052369B1/en
Publication of FR3052369A1 publication Critical patent/FR3052369A1/en
Application granted granted Critical
Publication of FR3052369B1 publication Critical patent/FR3052369B1/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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J35/19—
    • B01J35/56—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1023—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20723—Vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20776—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/502—Carbon monoxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B01D2257/7022—Aliphatic hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
    • 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
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/02—Catalytic activity of 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
    • Y02T10/40—Engine management systems

Abstract

La présente invention a pour objet un procédé de génération d'un catalyseur défaillant au point de vue d'un système OBD, ledit catalyseur comportant un bloc monolithique de série ayant un volume total V2 et une efficacité résiduelle E2i pour laquelle le système OBD, dans un bon état de fonctionnement, relève une défaillance. L'efficacité résiduelle E2i désirée est égale à X% de l'efficacité maximale Emax d'un bloc monolithique de série à l'état neuf et complètement imprégné. Le procédé comprend une étape de découpage (30) d'un premier bloc monolithique pour obtenir un bloc monolithique de série de manière que ledit bloc monolithique de série comprenne une partie imprégnée d'un deuxième volume V2i de matériau précieux représentant X% de son volume total V2.The present invention relates to a method of generating a failed catalyst from the point of view of an OBD system, said catalyst comprising a series monolithic block having a total volume V2 and a residual efficiency E2i for which the OBD system, in in good working order, identifies a failure. The desired residual efficiency E2i is equal to X% of the maximum efficiency Emax of a series monolithic block in new condition and completely impregnated. The method comprises a cutting step (30) of a first monolithic block to obtain a series monolithic block so that said series monolithic block comprises a part impregnated with a second volume V2i of precious material representing X% of its volume total V2.

FR1655353A 2016-06-10 2016-06-10 PROCESS FOR GENERATING A FAILING CATALYST FROM A POINT OF VIEW OF AN OBD SYSTEM Active FR3052369B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1655353A FR3052369B1 (en) 2016-06-10 2016-06-10 PROCESS FOR GENERATING A FAILING CATALYST FROM A POINT OF VIEW OF AN OBD SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1655353A FR3052369B1 (en) 2016-06-10 2016-06-10 PROCESS FOR GENERATING A FAILING CATALYST FROM A POINT OF VIEW OF AN OBD SYSTEM

Publications (2)

Publication Number Publication Date
FR3052369A1 FR3052369A1 (en) 2017-12-15
FR3052369B1 true FR3052369B1 (en) 2021-03-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR1655353A Active FR3052369B1 (en) 2016-06-10 2016-06-10 PROCESS FOR GENERATING A FAILING CATALYST FROM A POINT OF VIEW OF AN OBD SYSTEM

Country Status (1)

Country Link
FR (1) FR3052369B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11181030B2 (en) * 2019-07-29 2021-11-23 Paccar Inc Methods for making and using SCR catalyst on-board diagnostic limit parts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1257100B (en) * 1992-09-14 1996-01-05 Fiat Auto Spa MONITORING SYSTEM OF THE EFFICIENCY OF A CATALYST, PARTICULARLY FOR VEHICLES.
DE102006027845B3 (en) * 2006-06-16 2007-09-27 Audi Ag Catalytic converter for checking on-board diagnostic functions in internal combustion engines produces reduced conversion of nitrogen oxides and hydrocarbons
DE102010008700A1 (en) * 2010-02-19 2011-08-25 Umicore AG & Co. KG, 63457 coating process
FR2958971B1 (en) * 2010-04-14 2012-04-06 Peugeot Citroen Automobiles Sa DEVICE AND METHOD FOR DIAGNOSING THE ABSENCE OF A PARTICLE FILTER
US9528420B2 (en) * 2014-09-23 2016-12-27 Cummins Emission Solutions, Inc. System and method for creating catalyst OBD limit parts for exhaust aftertreatment applications

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Publication number Publication date
FR3052369A1 (en) 2017-12-15

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