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BR112023015514A2 - Sistemas para o tratamento de um gás de escape, processo para preparar um sistema para o tratamento de um gás de escape, método para o tratamento de um gás de escape e uso de um sistema - Google Patents

Sistemas para o tratamento de um gás de escape, processo para preparar um sistema para o tratamento de um gás de escape, método para o tratamento de um gás de escape e uso de um sistema

Info

Publication number
BR112023015514A2
BR112023015514A2 BR112023015514A BR112023015514A BR112023015514A2 BR 112023015514 A2 BR112023015514 A2 BR 112023015514A2 BR 112023015514 A BR112023015514 A BR 112023015514A BR 112023015514 A BR112023015514 A BR 112023015514A BR 112023015514 A2 BR112023015514 A2 BR 112023015514A2
Authority
BR
Brazil
Prior art keywords
exhaust gas
treatment
treating
preparing
component
Prior art date
Application number
BR112023015514A
Other languages
English (en)
Inventor
Alfred Punke
Gerd Grubert
B Hoke Jeffrey
Shiang Sung
Original Assignee
Basf Corp
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 Basf Corp filed Critical Basf Corp
Publication of BR112023015514A2 publication Critical patent/BR112023015514A2/pt

Links

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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—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
    • B01D53/9459—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
    • 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
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
    • 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
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    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9427—Processes characterised by a specific catalyst for removing nitrous oxide
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    • 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
    • B01D53/9463—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 one brick
    • B01D53/9472—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 one brick in different zones
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    • 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
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    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • F01N2510/068—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

sistemas para o tratamento de um gás de escape, processo para preparar um sistema para o tratamento de um gás de escape, método para o tratamento de um gás de escape e uso de um sistema. a presente invenção refere-se a um sistema para o tratamento de um gás de escape de um motor de combustão a diesel, um processo para a preparação de tal sistema e um uso do mesmo. em particular, o referido sistema compreende um componente adsorvente de nox e um componente de armadilha de nox pobre, em que o componente adsorvente de nox está compreendido em um primeiro catalisador compreendendo um primeiro substrato e um primeiro revestimento compreendendo um metal do grupo da platina suportado em um material zeolítico; e em que o componente de armadilha de nox pobre está compreendido em um segundo catalisador compreendendo um segundo substrato e um segundo revestimento compreendendo pt e pd ambos suportados em um primeiro material de suporte óxido não zeolítico específico, em que no referido sistema o componente adsorvente de nox é disposto a montante do componente de armadilha de nox pobre.
BR112023015514A 2021-03-18 2022-03-18 Sistemas para o tratamento de um gás de escape, processo para preparar um sistema para o tratamento de um gás de escape, método para o tratamento de um gás de escape e uso de um sistema BR112023015514A2 (pt)

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PCT/EP2022/057142 WO2022195072A1 (en) 2021-03-18 2022-03-18 System for the treatment of an exhaust gas of a diesel combustion engine

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JP3799651B2 (ja) * 1995-04-28 2006-07-19 マツダ株式会社 排気ガス浄化用触媒
JP6236995B2 (ja) * 2013-08-28 2017-11-29 マツダ株式会社 排気ガス浄化用触媒及びその製造方法並びにそれを用いた排気ガス浄化方法
KR102277783B1 (ko) 2013-09-16 2021-07-15 존슨 맛쎄이 퍼블릭 리미티드 컴파니 변형된 희박 NOx 트랩을 갖는 배기 시스템
US10005075B2 (en) 2013-12-06 2018-06-26 Johnson Matthey Public Limited Company Passive NOx adsorber
US10145281B2 (en) * 2015-01-29 2018-12-04 GM Global Technology Operations LLC Synergistic combinations of low temperature NOx adsorbers
KR20180026484A (ko) * 2015-07-02 2018-03-12 존슨 맛쎄이 퍼블릭 리미티드 컴파니 수동 NOx 흡착제
GB201517580D0 (en) 2015-10-06 2015-11-18 Johnson Matthey Plc Exhaust system comprising a passive nox adsorber
US20180058286A1 (en) * 2016-08-31 2018-03-01 GM Global Technology Operations LLC METHOD AND APPARATUS TO MINIMIZE DEACTIVATION OF A LOW TEMPERATURE NOx ADSORBER IN AN EXHAUST AFTERTREATMENT SYSTEM
GB201616269D0 (en) 2016-09-26 2016-11-09 Johnson Matthey Public Limited Company Oxidation catalyst for a diesel engine exhaust
GB2562875B (en) 2017-03-31 2020-06-17 Johnson Matthey Plc An exhaust purification system having an air injection system to protect a catalyst from oxygen deprived exhaust
JP7676151B2 (ja) * 2018-05-29 2025-05-14 ビーエーエスエフ モバイル エミッションズ カタリスツ エルエルシー 超低ＮＯｘ制御のためのディーゼル酸化触媒
EP3824988B1 (en) * 2019-11-20 2025-03-05 Umicore AG & Co. KG Catalyst for reducing nitrogen oxides

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