MX2017012029A - Catalizadores para automotores con soporte de paladio en una capa exenta de alumina. - Google Patents

Catalizadores para automotores con soporte de paladio en una capa exenta de alumina.

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Publication number
MX2017012029A
MX2017012029A MX2017012029A MX2017012029A MX2017012029A MX 2017012029 A MX2017012029 A MX 2017012029A MX 2017012029 A MX2017012029 A MX 2017012029A MX 2017012029 A MX2017012029 A MX 2017012029A MX 2017012029 A MX2017012029 A MX 2017012029A
Authority
MX
Mexico
Prior art keywords
alumina
catalytic material
free layer
palladium supported
automotive catalysts
Prior art date
Application number
MX2017012029A
Other languages
English (en)
Inventor
Sundermann Andreas
Deeba Michel
Karpov Andrey
Titlbach Sven
Andreas Schunk Stephan
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 MX2017012029A publication Critical patent/MX2017012029A/es

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56Platinum group metals
    • B01J23/63Platinum group metals with rare earths or actinides
    • 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
    • B01D53/9445Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/066Zirconium or hafnium; Oxides or hydroxides thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002Mixed oxides other than spinels, e.g. perovskite
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/44Palladium
    • B01J35/19
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/024Multiple impregnation or coating
    • B01J37/0248Coatings comprising impregnated particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08Heat treatment
    • 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
    • F01N3/10Exhaust 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
    • F01N3/18Exhaust 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
    • F01N3/20Exhaust 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/10Noble metals or compounds thereof
    • B01D2255/102Platinum group metals
    • B01D2255/1023Palladium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/204Alkaline earth metals
    • B01D2255/2042Barium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/204Alkaline earth metals
    • B01D2255/2045Calcium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/206Rare earth metals
    • B01D2255/2061Yttrium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/206Rare earth metals
    • B01D2255/2063Lanthanum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/206Rare earth metals
    • B01D2255/2065Cerium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/206Rare earth metals
    • B01D2255/2066Praseodymium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/206Rare earth metals
    • B01D2255/2068Neodymium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20715Zirconium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/40Mixed oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/40Mixed oxides
    • B01D2255/407Zr-Ce mixed oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/90Physical characteristics of catalysts
    • B01D2255/908O2-storage component incorporated in the catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/90Physical characteristics of catalysts
    • B01D2255/92Dimensions
    • B01D2255/9207Specific surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00Constitutive chemical elements of heterogeneous catalysts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0234Impregnation and coating simultaneously
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

Se proporcionan catalizadores que mejoran el rendimiento de activación del monóxido de carbono (CO), de los hidrocarburos (HC) y de los óxidos de nitrógeno (NOx). Un compuesto catalizador para motores de combustión, tal como se la proporciona en la presente, comprende un portador y una primera capa que contiene en el portador un material catalítico, material catalítico que comprende un componente de paladio que tiene por soporte tanto un componente almacenador de oxígeno basado en óxido de cerio y óxido de praseodimio, como también un componente almacenador de oxígeno basado en óxido de cerio y óxido de zirconio, estando la primera capa esencialmente exenta de alúmina. El material catalítico es eficaz para oxidar monóxido de carbono e hidrocarburos y reducir óxidos de nitrógeno de manera sustancial y simultánea.
MX2017012029A 2015-03-19 2016-03-17 Catalizadores para automotores con soporte de paladio en una capa exenta de alumina. MX2017012029A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562135450P 2015-03-19 2015-03-19
PCT/US2016/022853 WO2016149483A1 (en) 2015-03-19 2016-03-17 Automotive catalysts with palladium supported in an alumina-free layer

Publications (1)

Publication Number Publication Date
MX2017012029A true MX2017012029A (es) 2018-02-19

Family

ID=56919361

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017012029A MX2017012029A (es) 2015-03-19 2016-03-17 Catalizadores para automotores con soporte de paladio en una capa exenta de alumina.

Country Status (11)

Country Link
US (1) US20180071679A1 (es)
EP (1) EP3271070A4 (es)
JP (1) JP2018513781A (es)
KR (1) KR20170128311A (es)
CN (1) CN107405605A (es)
BR (1) BR112017016112A2 (es)
CA (1) CA2972828A1 (es)
MX (1) MX2017012029A (es)
RU (1) RU2017135505A (es)
WO (1) WO2016149483A1 (es)
ZA (1) ZA201706902B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3325457B1 (en) 2015-07-22 2020-01-01 Basf Se Process for preparing furan-2,5-dicarboxylic acid
CA3003764A1 (en) 2015-11-04 2017-05-11 Basf Se A process for preparing a mixture comprising 5-(hydroxymethyl)furfural and specific hmf esters
BR112018008741A8 (pt) 2015-11-04 2019-02-26 Basf Se ?processo para a preparação do ácido e utilização de um éster de ácido?
CN109562358A (zh) 2016-08-08 2019-04-02 巴斯夫欧洲公司 用于将乙烯氧化成环氧乙烷的催化剂
CN109996781A (zh) 2016-11-30 2019-07-09 巴斯夫欧洲公司 使用沸石催化剂将乙二醇转化为乙二胺的方法
EP3585765A1 (en) 2016-11-30 2020-01-01 Basf Se Process for the conversion of monoethanolamine to ethylenediamine employing a copper-modified zeolite of the mor framework structure
EP3708541B1 (en) * 2017-11-06 2024-04-10 Nippon Denko Co.,Ltd. Oxygen absorbing and releasing material, catalyst, exhaust gas purifying system, and exhaust gas treatment method
JP2022503617A (ja) * 2018-08-27 2022-01-12 ビーエーエスエフ コーポレーション 卑金属をドープした酸化ジルコニウム触媒担体材料
WO2020200394A1 (de) * 2019-03-29 2020-10-08 Umicore Ag & Co. Kg Katalytisch aktives partikelfilter
US11801491B1 (en) * 2022-04-21 2023-10-31 GM Global Technology Operations LLC Three-way catalyst with reduced palladium loading and method of making the three-way catalyst

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5948723A (en) * 1996-09-04 1999-09-07 Engelhard Corporation Layered catalyst composite
US5897846A (en) * 1997-01-27 1999-04-27 Asec Manufacturing Catalytic converter having a catalyst with noble metal on molecular sieve crystal surface and method of treating diesel engine exhaust gas with same
US6528451B2 (en) * 2001-03-13 2003-03-04 W.R. Grace & Co.-Conn. Catalyst support material having high oxygen storage capacity and method of preparation thereof
JP4194805B2 (ja) * 2002-06-11 2008-12-10 ヴァルティオン テクンニィルリネン ツッツキムスケスクス 窒素酸化物を接触的に除去する方法とそのための触媒
JP2004068717A (ja) * 2002-08-07 2004-03-04 Valtion Teknillinen Tutkimuskeskus 窒素酸化物を接触的に除去するための方法とそのための装置
US6902664B2 (en) * 2002-11-08 2005-06-07 Chevron U.S.A. Inc. Extremely low acidity USY and homogeneous, amorphous silica-alumina hydrocracking catalyst and process
JP2005066482A (ja) * 2003-08-25 2005-03-17 Toyota Motor Corp 排ガス浄化用触媒とその低温浄化能の評価方法
WO2005044426A1 (ja) * 2003-11-11 2005-05-19 Valtion Teknillinen Tutkimuskeskus 窒素酸化物を接触還元する方法をそのための触媒
EP1712278B1 (en) * 2004-12-20 2017-08-16 Tanaka Kikinzoku Kogyo Kabushiki Kaisha Combustion catalyst for treating diesel exhaust gas and method for treating diesel exhaust gas
US20080044330A1 (en) * 2006-08-21 2008-02-21 Shau-Lin Franklin Chen Layered catalyst composite
US8038951B2 (en) * 2007-08-09 2011-10-18 Basf Corporation Catalyst compositions
JP2009160556A (ja) * 2008-01-09 2009-07-23 Daihatsu Motor Co Ltd 排ガス浄化用触媒および排ガス浄化用触媒の製造方法
US8568675B2 (en) * 2009-02-20 2013-10-29 Basf Corporation Palladium-supported catalyst composites
JP5589320B2 (ja) * 2009-08-17 2014-09-17 マツダ株式会社 排気ガス浄化用触媒及びその製造方法
JP5903205B2 (ja) * 2010-01-04 2016-04-13 株式会社キャタラー 排ガス浄化用触媒
US8815189B2 (en) * 2010-04-19 2014-08-26 Basf Corporation Gasoline engine emissions treatment systems having particulate filters
EP2640513A1 (de) * 2010-11-16 2013-09-25 Umicore AG & Co. KG Katalysator zur entfernung von stickoxiden aus dem abgas von dieselmotoren
US8668877B2 (en) * 2010-11-24 2014-03-11 Basf Corporation Diesel oxidation catalyst articles and methods of making and using
WO2013021395A1 (en) * 2011-08-10 2013-02-14 Süd-Chemie India Ltd. Catalyst for after-treatment of exhaust gas from an internal combustion engine
US20140255284A1 (en) * 2013-03-08 2014-09-11 Basf Corporation Base Metal Catalyst And Method Of Using Same
JP6050703B2 (ja) * 2013-03-08 2016-12-21 株式会社キャタラー 排ガス浄化用触媒
US9403157B2 (en) * 2013-04-29 2016-08-02 Ford Global Technologies, Llc Three-way catalyst comprising mixture of nickel and copper
GB2545747A (en) * 2015-12-24 2017-06-28 Johnson Matthey Plc Gasoline particulate filter

Also Published As

Publication number Publication date
RU2017135505A (ru) 2019-04-19
RU2017135505A3 (es) 2019-04-19
WO2016149483A1 (en) 2016-09-22
JP2018513781A (ja) 2018-05-31
EP3271070A1 (en) 2018-01-24
CN107405605A (zh) 2017-11-28
KR20170128311A (ko) 2017-11-22
BR112017016112A2 (pt) 2018-03-27
ZA201706902B (en) 2020-08-26
EP3271070A4 (en) 2018-11-21
US20180071679A1 (en) 2018-03-15
CA2972828A1 (en) 2016-09-22

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