WO2009000667A3 - Herstellungsverfahren und katalysatorelement mit axial veränderlicher katalytischer beschichtung - Google Patents

Herstellungsverfahren und katalysatorelement mit axial veränderlicher katalytischer beschichtung Download PDF

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Publication number
WO2009000667A3
WO2009000667A3 PCT/EP2008/057409 EP2008057409W WO2009000667A3 WO 2009000667 A3 WO2009000667 A3 WO 2009000667A3 EP 2008057409 W EP2008057409 W EP 2008057409W WO 2009000667 A3 WO2009000667 A3 WO 2009000667A3
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WO
WIPO (PCT)
Prior art keywords
catalyst element
catalyst
coating
temporary layer
combustion engine
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PCT/EP2008/057409
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English (en)
French (fr)
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WO2009000667A2 (de
Inventor
Joerg Jockel
Matthias Kruse
Thomas Hauber
Hermann Koch-Groeber
Christoph Saffe
Original Assignee
Bosch Gmbh Robert
Joerg Jockel
Matthias Kruse
Thomas Hauber
Hermann Koch-Groeber
Christoph Saffe
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
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Application filed by Bosch Gmbh Robert, Joerg Jockel, Matthias Kruse, Thomas Hauber, Hermann Koch-Groeber, Christoph Saffe filed Critical Bosch Gmbh Robert
Publication of WO2009000667A2 publication Critical patent/WO2009000667A2/de
Publication of WO2009000667A3 publication Critical patent/WO2009000667A3/de

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    • 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
    • B01D53/9431—Processes characterised by a specific device
    • 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
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • 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]
    • 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
    • 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
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • B01J37/0246—Coatings comprising a zeolite
    • 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
    • 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
    • B01J23/54—Catalysts 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
    • B01J23/56—Platinum group metals
    • B01J23/63—Platinum group metals with rare earths or actinides
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/061—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing metallic elements added to the zeolite
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

Das Katalysatorelement, z. B. ein Wabenkörper zur Reinigung von Abgasen einer Brennkraftmaschine, dessen Wände (34) mit einer katalytisch aktiven Beschichtung versehen sind, wobei eine katalytische Beschichtung in axialer und/oder radialer Richtung ungleich über das Katalysatorelement (18) verteilt ist. In Längsrichtung können verschiedene Segmente (36, 40, 44) vorliegen, die unterschiedliche Beschichtungen aufweisen, mit fliessendem, gestuftem oder abruptem Übergang. Die katalytische Beschichtung kann aus allen Metalloxiden und Edelmetall bestehen. Das Herstellungsverfahren zur partiellen Beschichtung des Katalysatorelements (18) sieht vor, dass bereichsweise auf die Wände (31) des Katalysatorelements (18) eine temporäre Schicht (34) aufgebracht wird, dass das Katalysatorelement (18) mindestens bereichsweise mit mindestens einer dauerhaften katalytisch aktiven Beschichtung (38) versehen wird, und dass die temporäre Schicht (34) anschliessend entfernt wird. Die temporäre Schicht kann aus hydrophobierenden Substraten bestehend aus Silanen, Siloxanen, Lacken, Ölen, Wachsen, Fettalkoholen, mit hydrophobierenden Gruppen funktionalisierten Polymeren, insbesondere Polyacrylaten, Polystyrolen, Polyacrylaminaden, Polyrinylpyrrolidonen, Polymaleaten, Polyacrylamiden, Polymeren auf Epoxidbasis bestehen und durch Eintauchen aufgebracht werden.
PCT/EP2008/057409 2007-06-26 2008-06-12 Herstellungsverfahren und katalysatorelement mit axial veränderlicher katalytischer beschichtung WO2009000667A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007029418A DE102007029418A1 (de) 2007-06-26 2007-06-26 Katalysatorelement, Katalysator zur Abgasnachbehandlung einer Brennkraftmaschine und Verfahren zur Herstellung eines erfindungsgemäßen Katalysatorelements
DE102007029418.4 2007-06-26

Publications (2)

Publication Number Publication Date
WO2009000667A2 WO2009000667A2 (de) 2008-12-31
WO2009000667A3 true WO2009000667A3 (de) 2009-03-12

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DE (1) DE102007029418A1 (de)
WO (1) WO2009000667A2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007056213A1 (de) * 2007-11-22 2009-05-28 Robert Bosch Gmbh Verfahren zur Herstellung eines von Abgas durchströmbaren Formkörpers sowie Abgasanlage einer Brennkraftmaschine
DE102011100017A1 (de) * 2011-04-29 2012-10-31 Süd-Chemie AG Verfahren zur Herstellung gezonter Katalysatoren
DE102016202610A1 (de) * 2016-02-19 2017-08-24 Dürr Systems GmbH Verfahren zur Herstellung eines porösen Funktionskörpers
WO2023096764A1 (en) * 2021-11-24 2023-06-01 Corning Incorporated Wall flow honeycomb filters and method of manufacture

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459534A1 (de) * 1989-04-20 1991-12-04 Degussa Aktiengesellschaft Monolith- bzw. wabenförmiger Katalysator
WO1997023278A1 (en) * 1995-12-21 1997-07-03 Engelhard Corporation Engine exhaust treatment apparatus and method of use
US6054108A (en) * 1996-09-09 2000-04-25 Siemens Aktiengesellschaft Catalyst system and recombination device for recombining hydrogen and oxygen, in particular for a nuclear power station and method for operating a catalyst system
US20050020443A1 (en) * 2003-07-23 2005-01-27 Ming Wei Method of making a NOx adsorber catalyst
EP1598111A1 (de) * 2004-05-15 2005-11-23 Delphi Technologies, Inc. Katalysator mit Konzentrationsgradienten zur Verwendung in einem katalytischen Filter
EP1640056A2 (de) * 2004-09-22 2006-03-29 Mazda Motor Corporation Abgasreinigungssystem

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459534A1 (de) * 1989-04-20 1991-12-04 Degussa Aktiengesellschaft Monolith- bzw. wabenförmiger Katalysator
WO1997023278A1 (en) * 1995-12-21 1997-07-03 Engelhard Corporation Engine exhaust treatment apparatus and method of use
US6054108A (en) * 1996-09-09 2000-04-25 Siemens Aktiengesellschaft Catalyst system and recombination device for recombining hydrogen and oxygen, in particular for a nuclear power station and method for operating a catalyst system
US20050020443A1 (en) * 2003-07-23 2005-01-27 Ming Wei Method of making a NOx adsorber catalyst
EP1598111A1 (de) * 2004-05-15 2005-11-23 Delphi Technologies, Inc. Katalysator mit Konzentrationsgradienten zur Verwendung in einem katalytischen Filter
EP1640056A2 (de) * 2004-09-22 2006-03-29 Mazda Motor Corporation Abgasreinigungssystem

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Publication number Publication date
DE102007029418A1 (de) 2009-01-08
WO2009000667A2 (de) 2008-12-31

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