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

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

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459Removing 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
    • B01D53/9477Removing 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828Exhaust 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
    • F01N3/0842Nitrogen oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404Removing only nitrogen compounds
    • B01D53/9409Nitrogen oxides
    • B01D53/9413Processes characterised by a specific catalyst
    • B01D53/9422Processes 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)
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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    • B01D53/9472Removing 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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    • B01J29/65Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38, as exemplified by patent documents US4046859, US4016245 and US4046859, respectively
    • B01J29/66Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38, as exemplified by patent documents US4046859, US4016245 and US4046859, respectively containing iron group metals, noble metals or copper
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    • B01J35/56Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • F01N3/28Construction of catalytic reactors
    • F01N3/2803Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
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    • F01N2510/06Surface coverings for exhaust purification, e.g. catalytic reaction
    • F01N2510/068Surface 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)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21163535 2021-03-18
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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BR112023015514A2 true BR112023015514A2 (pt) 2023-10-03

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