WO2009135060A3 - Apparatus, system, and method for reducing nox emissions on an scr catalyst - Google Patents

Apparatus, system, and method for reducing nox emissions on an scr catalyst Download PDF

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Publication number
WO2009135060A3
WO2009135060A3 PCT/US2009/042406 US2009042406W WO2009135060A3 WO 2009135060 A3 WO2009135060 A3 WO 2009135060A3 US 2009042406 W US2009042406 W US 2009042406W WO 2009135060 A3 WO2009135060 A3 WO 2009135060A3
Authority
WO
WIPO (PCT)
Prior art keywords
reductant
scr catalyst
nox reduction
gas stream
exhaust gas
Prior art date
Application number
PCT/US2009/042406
Other languages
French (fr)
Other versions
WO2009135060A2 (en
Inventor
Joan M. Wills
John N. Chi
Weiwen Wang
Phanindra Garimella
Timothy R. Frazier
Abdul R. Ofoli
Joe V. Hill
Lisa A. Farrell
Neal W. Currier
Aleksey Yezerets
Andrew Osburn
Original Assignee
Cummins Ip, 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
Priority claimed from US12/112,795 external-priority patent/US8161730B2/en
Priority claimed from US12/112,500 external-priority patent/US8109079B2/en
Priority claimed from US12/112,678 external-priority patent/US8181450B2/en
Priority claimed from US12/112,622 external-priority patent/US8074445B2/en
Application filed by Cummins Ip, Inc. filed Critical Cummins Ip, Inc.
Priority to DE112009000968T priority Critical patent/DE112009000968T5/en
Priority to CN2009801155401A priority patent/CN102016250B/en
Publication of WO2009135060A2 publication Critical patent/WO2009135060A2/en
Publication of WO2009135060A3 publication Critical patent/WO2009135060A3/en

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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
    • 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
    • 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
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • 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
    • B01D2255/20738—Iron
    • 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
    • B01D2255/20761—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/014—Stoichiometric gasoline engines
    • 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
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/021—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting ammonia NH3
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/07—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas flow rate or velocity meter or sensor, intake flow meters only when exclusively used to determine exhaust gas parameters
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure sensor
    • 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
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1622—Catalyst reducing agent absorption capacity or consumption amount
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/16—Control of the pumps by bypassing charging air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • 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

Abstract

According to one representative embodiment, an apparatus (130) for reducing NOx emissions in an engine exhaust gas stream of an engine system (10) having a selective catalytic reduction (SCR) system (150) with an SCR catalyst (152) positioned downstream of a reductant injector (192) includes a NOx reduction target module (300) and a reductant module (330). The NOx reduction target module is configured to determine a NOx reduction requirement (304). The reductant module is configured to determine the amount of reductant added to the exhaust gas stream to achieve the NOx reduction requirement. The amount of reductant added to the exhaust gas stream is a function of at least one ammonia storage characteristic of the SCR catalyst, at least one reductant-to-ammonia conversion characteristic, and a conversion capability of an AMOX catalyst (160) in exhaust receiving communication with the SCR catalyst.
PCT/US2009/042406 2008-04-30 2009-04-30 Apparatus, system, and method for reducing nox emissions on an scr catalyst WO2009135060A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112009000968T DE112009000968T5 (en) 2008-04-30 2009-04-30 Apparatus, system and method for reducing NOx emissions in an SCR catalyst
CN2009801155401A CN102016250B (en) 2008-04-30 2009-04-30 Apparatus, system, and method for reducing NOx emissions on an SCR catalyst

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US12/112,500 2008-04-30
US12/112,795 US8161730B2 (en) 2008-04-30 2008-04-30 Apparatus, system, and method for reducing NOx emissions on an SCR catalyst
US12/112,795 2008-04-30
US12/112,622 2008-04-30
US12/112,500 US8109079B2 (en) 2008-04-30 2008-04-30 Apparatus, system, and method for controlling ammonia slip from an SCR catalyst
US12/112,678 2008-04-30
US12/112,678 US8181450B2 (en) 2008-04-30 2008-04-30 Apparatus, system, and method for reducing NOx emissions on an SCR catalyst using ammonia storage and slip control
US12/112,622 US8074445B2 (en) 2008-04-30 2008-04-30 Apparatus, system, and method for reducing NOx emissions on an SCR catalyst
US12031108P 2008-12-05 2008-12-05
US61/120,311 2008-12-05

Publications (2)

Publication Number Publication Date
WO2009135060A2 WO2009135060A2 (en) 2009-11-05
WO2009135060A3 true WO2009135060A3 (en) 2010-02-18

Family

ID=41255826

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/042406 WO2009135060A2 (en) 2008-04-30 2009-04-30 Apparatus, system, and method for reducing nox emissions on an scr catalyst

Country Status (3)

Country Link
CN (1) CN102016250B (en)
DE (1) DE112009000968T5 (en)
WO (1) WO2009135060A2 (en)

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US8627651B2 (en) * 2011-08-05 2014-01-14 Cummins Emission Solutions, Inc. NH3 emissions management in a NOx reduction system
US8919101B2 (en) * 2012-02-23 2014-12-30 GM Global Technology Operations LLC Selective catalytic reduction device control methods and systems
DE102012105954A1 (en) * 2012-07-04 2014-01-09 Emitec Gesellschaft Für Emissionstechnologie Mbh Process for the supply of reducing agent
FR3015558B1 (en) * 2013-12-20 2019-02-01 Renault S.A.S DETECTION AND QUANTIFICATION OF AMMONIA LEAKS DOWNSTREAM OF A SELECTIVE CATALYTIC REDUCTION SYSTEM OF NITROGEN OXIDES
CN104678761B (en) * 2015-02-11 2017-04-26 国家电网公司 Total air volume advanced control-based denitration control method and system for thermal power unit
US9517437B2 (en) 2015-03-02 2016-12-13 General Electric Company Systems and methods for controlling aftertreatment systems
DE102015216656A1 (en) 2015-09-01 2017-03-02 Bayerische Motoren Werke Aktiengesellschaft Method for operating an emission control system
US9903247B2 (en) * 2015-12-31 2018-02-27 Cummins Emission Solutions Inc. Reductant apportionment for multi-dosing architectures
CN105604653B (en) * 2016-03-18 2018-08-21 安徽华菱汽车有限公司 A kind of method for urea injection control, device and SCR system
US10208696B2 (en) 2016-10-21 2019-02-19 GM Global Technology Operations LLC Multivariable engine torque and emission closed-loop control for internal combustion engine
US11105245B2 (en) * 2016-12-12 2021-08-31 Cummins Emission Solutions Inc. Reductant concentration diagnostic systems and methods
CN106870080A (en) * 2017-01-23 2017-06-20 哈尔滨工程大学 A kind of method of real-time suitable for marine diesel SCR system NH3, NOx concentration and residing temperature
US10337383B2 (en) * 2017-03-13 2019-07-02 Gm Global Technology Operations Llc. Selective catalyst reduction efficiency determination
US10634032B2 (en) * 2017-12-15 2020-04-28 GM Global Technology Operations LLC Method and apparatus for monitoring an exhaust aftertreatment system for an internal combustion engine
CN108590817A (en) * 2018-03-21 2018-09-28 天津大学 Switchable type SCR denitration system behind the preceding whirlpool in whirlpool
AT521323B1 (en) * 2018-05-30 2021-11-15 Avl List Gmbh Arrangement, method and adaptation module for controlling and / or regulating an SCR system
DE102018119599A1 (en) * 2018-08-13 2020-02-13 Volkswagen Aktiengesellschaft Exhaust aftertreatment system and method for exhaust aftertreatment of an internal combustion engine
CN112814770B (en) * 2020-12-31 2022-04-05 潍柴动力股份有限公司 Uniformity evaluation method and device of parallel SCR system
CN115263508B (en) * 2022-08-09 2023-11-21 一汽解放汽车有限公司 Tail gas aftertreatment system, control method, device and equipment for multiple engines
CN115306525B (en) * 2022-09-01 2024-01-12 潍柴动力股份有限公司 Urea injection control method and device, diesel vehicle and storage medium

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Also Published As

Publication number Publication date
WO2009135060A2 (en) 2009-11-05
CN102016250A (en) 2011-04-13
DE112009000968T5 (en) 2011-07-28
CN102016250B (en) 2013-05-01

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