MX2017011250A - Catalizador adsorbedor de nox, metodos y sistemas. - Google Patents

Catalizador adsorbedor de nox, metodos y sistemas.

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Publication number
MX2017011250A
MX2017011250A MX2017011250A MX2017011250A MX2017011250A MX 2017011250 A MX2017011250 A MX 2017011250A MX 2017011250 A MX2017011250 A MX 2017011250A MX 2017011250 A MX2017011250 A MX 2017011250A MX 2017011250 A MX2017011250 A MX 2017011250A
Authority
MX
Mexico
Prior art keywords
lean burn
methods
burn engine
low temperature
lean
Prior art date
Application number
MX2017011250A
Other languages
English (en)
Inventor
Grubert Gerd
Neubauer Torsten
Hilgendorff Marcus
H Punke Alfred
Li Yuejin
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 MX2017011250A publication Critical patent/MX2017011250A/es

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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
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/464—Rhodium
    • 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
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • 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)
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    • 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
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
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    • B01J37/038—Precipitation; Co-precipitation to form slurries or suspensions, e.g. a washcoat
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    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
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    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
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    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
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    • 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
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    • 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
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    • 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]
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    • F01N2370/00—Selection of materials for exhaust purification
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Abstract

Se revelan artículos de tratamiento de escape de motores de combustión pobre que comprenden una composición de trampa pobre en NOx a baja temperatura (LT-LNT) y métodos para su uso. También se revela un sistema de tratamiento de gas de escape de motores de combustión pobre que incluye los artículos de tratamiento de escape de motores de combustión pobre. Las composiciones de trampa pobre en NOx a baja temperatura (LT-LNT) pueden comprender un recubrimiento sellador sobre un sustrato portador, donde el recubrimiento sellador incluye un componente metálico del grupo de platino impregnado en un primer material de soporte que comprende al menos el 50% de alúmina. El recubrimiento sellador también puede incluir un material de almacenamiento de NOx a baja temperatura que comprende un óxido de metal reducible particulado a granel. También se revelan métodos de control del estado de envejecimiento de un catalizador de oxidación de combustión pobre en un sistema de catalizadores de motores de combustión pobre.
MX2017011250A 2015-03-03 2016-03-03 Catalizador adsorbedor de nox, metodos y sistemas. MX2017011250A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562127406P 2015-03-03 2015-03-03
PCT/US2016/020605 WO2016141140A1 (en) 2015-03-03 2016-03-03 NOx ADSORBER CATALYST, METHODS AND SYSTEMS

Publications (1)

Publication Number Publication Date
MX2017011250A true MX2017011250A (es) 2018-08-14

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MX2017011250A MX2017011250A (es) 2015-03-03 2016-03-03 Catalizador adsorbedor de nox, metodos y sistemas.

Country Status (10)

Country Link
US (1) US10493434B2 (es)
EP (1) EP3265212A4 (es)
JP (2) JP7055635B2 (es)
KR (1) KR102609702B1 (es)
CN (1) CN107735161B (es)
BR (1) BR112017018826A2 (es)
CA (1) CA2978703A1 (es)
MX (1) MX2017011250A (es)
RU (1) RU2017134081A (es)
WO (1) WO2016141140A1 (es)

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