BR112018073996A2 - compósito de catalisador automotivo, sistema de tratamento de gás de escape, método para tratar um gás de escape, método para fabricar um compósito de catalisador automotivo e material particulado - Google Patents

compósito de catalisador automotivo, sistema de tratamento de gás de escape, método para tratar um gás de escape, método para fabricar um compósito de catalisador automotivo e material particulado

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Publication number
BR112018073996A2
BR112018073996A2 BR112018073996-0A BR112018073996A BR112018073996A2 BR 112018073996 A2 BR112018073996 A2 BR 112018073996A2 BR 112018073996 A BR112018073996 A BR 112018073996A BR 112018073996 A2 BR112018073996 A2 BR 112018073996A2
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BR
Brazil
Prior art keywords
exhaust gas
catalyst composite
core
automotive catalyst
gas treatment
Prior art date
Application number
BR112018073996-0A
Other languages
English (en)
Inventor
Luo Tian
Deeba Michel
Leung Emi
Gu Yunlong
Original Assignee
Basf Corporation
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Filing date
Publication date
Application filed by Basf Corporation filed Critical Basf Corporation
Publication of BR112018073996A2 publication Critical patent/BR112018073996A2/pt

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    • 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
    • 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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • 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
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J23/56—Platinum group metals
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    • 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
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    • 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
    • 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
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    • F01N3/2066—Selective catalytic reduction [SCR]
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Abstract

a invenção fornece um compósito de catalisador automotivo efetivo para diminuir emissão de monóxido de carbono, hidrocarbonetos e nox em um fluxo de gás de escape automotivo, o qual inclui um material catalítico em um portador, o material catalítico incluindo uma pluralidade de partículas de suporte do núcleo-invólucro que compreendem um núcleo e um invólucro ao redor do núcleo, o núcleo incluindo uma pluralidade de partículas que têm uma distribuição de tamanho de partícula principal d90 de até cerca de 5 µm, em que as partículas do núcleo compreendem partículas de um ou mais óxidos de metal, o invólucro incluindo nanopartículas de um ou mais óxidos de metal, em que as nanopartículas têm uma distribuição de tamanho de partícula principal d90 na faixa de cerca de 5 nm a cerca de 1000 nm (1 µm), e um ou mais metais do grupo da platina (pgms) sobre o suporte do núcleo-invólucro. a invenção ainda fornece um sistema de tratamento de gás de escape e relata um método de tratamento de gás de escape utilizando um compósito de catalisador.
BR112018073996-0A 2016-05-26 2017-05-09 compósito de catalisador automotivo, sistema de tratamento de gás de escape, método para tratar um gás de escape, método para fabricar um compósito de catalisador automotivo e material particulado BR112018073996A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662341856P 2016-05-26 2016-05-26
US62/341,856 2016-05-26
PCT/US2017/031636 WO2017205042A2 (en) 2016-05-26 2017-05-09 Core/shell catalyst particles and method of manufacture

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BR112018073996A2 true BR112018073996A2 (pt) 2019-02-26

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US (1) US20190160427A1 (pt)
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