EP0458045B1 - Matrice métallique de support pour un réacteur catalytique - Google Patents

Matrice métallique de support pour un réacteur catalytique Download PDF

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Publication number
EP0458045B1
EP0458045B1 EP91105500A EP91105500A EP0458045B1 EP 0458045 B1 EP0458045 B1 EP 0458045B1 EP 91105500 A EP91105500 A EP 91105500A EP 91105500 A EP91105500 A EP 91105500A EP 0458045 B1 EP0458045 B1 EP 0458045B1
Authority
EP
European Patent Office
Prior art keywords
support matrix
metal support
stacks
point
cross
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP91105500A
Other languages
German (de)
English (en)
Other versions
EP0458045A1 (fr
Inventor
Bohumil Humpolik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
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 Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Publication of EP0458045A1 publication Critical patent/EP0458045A1/fr
Application granted granted Critical
Publication of EP0458045B1 publication Critical patent/EP0458045B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • 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
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • F01N2330/04—Methods of manufacturing
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/1234—Honeycomb, or with grain orientation or elongated elements in defined angular relationship in respective components [e.g., parallel, inter- secting, etc.]

Definitions

  • the invention relates to a metal support matrix for a catalytic reactor for exhaust gas purification, in particular for internal combustion engines, according to the preamble of patent claim 1.
  • the aforementioned method has the disadvantage that special shapes are produced by inserting loose filler pieces Need to become. It is also disadvantageous that devouring thicker sheet stacks, which are required for producing larger catalyst diameters, requires extraordinarily high forces.
  • the invention is therefore based on the object of designing a metal support matrix of the type mentioned at the outset in such a way that a homogeneous, easy-to-manufacture honeycomb body is formed from a multiplicity of sheet metal layers and, if possible, each sheet metal layer comes into contact with the enveloping jacket.
  • the proposed design allows the simple production of a metal support matrix from a large number of sheet metal layers.
  • the adaptation to different shapes of the jacket is easily possible.
  • a variety of shapes can be created by varying the length and / or the thickness of the individual stacks will.
  • special shapes for example elliptical carrier matrices, it is not necessary to insert filler pieces, as a result of which a substantial reduction in production costs is achieved.
  • Catalyst forms with larger diameters can advantageously be designed in such a way that the metal support matrix consists of a larger number of stacks. This reduces the thickness of the individual stacks, the individual sheet layers are evenly distributed in the metal support matrix, and the forces required for the stacks to be devoured are reduced.
  • the configuration of the metal carrier matrix from four stacks is also particularly advantageous, since this configuration results in a very uniform distribution of the lines of contact of the sheet metal layers with the jacket on the inner jacket surface.
  • the embodiment according to claim 5 enables the advantageous embodiment of an elliptical or ellipse-like catalyst shape.
  • the even distribution of the lines of contact on the inner circumferential surface in elliptical or elliptical-like catalyst shapes can be expediently obtained by pressing a round metal support matrix, which has a larger cavity inside, to the desired elliptical or elliptical-like shape.
  • the shape of the stack from which the metal carrier matrix is made always has two parallel edges in the side view.
  • the ends of the stack can run out at different angles, so that the geometric shapes described in the characterizing part of claim 1 result.
  • FIG. 1a A circular catalyst shape is shown in FIG. 1a and the associated arrangement of the stacks (3) is shown schematically in FIG. 1b.
  • the dimensions of the stacks (3) are identical. They have a rectangular shape, in the illustration shown here corrugated (4) and smooth (5) sheet metal layers are stacked on top of each other.
  • the stacks (3) are arranged such that the lines of contact in the side view give the shape of a right-angled cross (6), which is shown in the drawing by thick lines.
  • the stacks (3) are wrapped clockwise around a point of symmetry (8), which is the center of the cross (6) here.
  • the metal carrier matrix (1) thus produced is then inserted into a jacket (2).
  • the sheet metal layers (4, 5) of the metal carrier matrix (1) and the jacket (2) are connected in the next production step by a joining technique, preferably by soldering.
  • FIG. 2 shows a square catalyst shape (with rounded corners).
  • the arrangement of the stacks (3) is cruciform, as in the round catalyst shape.
  • the individual stacks (3) are not rectangular in the side view, but tapering at the outer end, ie trapezoidal. The manufacturing process proceeds as indicated in the description of FIG. 1.
  • Fig. 3a an elongated catalyst shape and in Fig. 3b the associated arrangement of the stacks (3) is shown schematically.
  • the arrangement of the stacks (3) is also cruciform.
  • the stacks (3) above and below a displacement plane E-E which is perpendicular to the plane of the drawing, are displaced relative to each other, so that a displaced cross (7) results, which is shown in the drawing by thick lines.
  • the distance between the stacks (3) perpendicular to the displacement plane E-E determines the width of the catalyst.
  • the stacks (3) as already shown in the description of FIG. 1, are wrapped clockwise around the point of symmetry (8), which is arranged on the displacement plane E-E and centrally to both displaced stacks (3). The further production steps take place as already stated above.
  • FIGS. 4b and 5b schematically illustrate elliptical catalyst shapes and in FIGS. 4b and 5b the associated arrangements of the stacks (3).
  • the arrangement of the stacks (3) is similar to the arrangement shown in Fig. 3b.
  • the stacks (3) shown here vary in thickness and length. This results in further different forms for the catalyst. The manufacturing process proceeds as explained in the description of FIG. 1.
  • FIG. 6a shows a further embodiment of an elliptical catalytic converter shape
  • FIG. 6b shows the associated arrangement of the stacks before devouring
  • FIG. 6c shows the associated arrangement of the stacks after devouring.
  • the stacks (3) are in the side view parallelogram. They are arranged in a cross shape around the point of symmetry (8) in such a way that a central square cavity (9) is formed.
  • the stacks (3) are devoured clockwise around the cavity (9) or the point of symmetry (8), which forms the center of the cavity (9).
  • a round shape of the metal carrier matrix (1) results, which is shown schematically in FIG. 6c. Starting from this round shape, the metal support matrix (1) is pressed into the desired elliptical shape using suitable tools.
  • the central cavity (9) is closed.
  • the metal support matrix (1) is inserted into a jacket (2) and connected to it by joining technology.
  • a round catalyst shape is shown, which consists of eight stacks (3).
  • Fig. 7b shows the symmetrical arrangement of the eight parallelogram stacks (3) around the point of symmetry (8) before devouring.
  • the stacks (3) are the same in thickness and length. Their end faces are brought into contact with the side faces of the respective adjacent stacks (3), the free ends of the stacks (3) are intertwined in the same direction around the point of symmetry (8).
  • the metal carrier matrix (1) thus produced is inserted into the jacket (2) and connected to it by joining technology.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Claims (8)

  1. Matrice métallique de support (1) pour un réacteur catalytique pour l'épuration des gaz d'échappement, en particulier pour moteurs à combustion interne, consistant en des bandes métalliques ondulées (4) ou en des bandes métalliques ondulées (4) et lisses (5), qui sont pliées ou superposées et entrelacées pour former plusieurs couches contigües,
       caractérisée en ce qu'au moins quatre empilements (3) chaque fois mis en contact entre eux par une extrémité, sont disposés à symétrie ponctuelle et sont entrelacés dans le même sens autour d'un point de symétrie (8), en ce que l'aspect latéral de l'empilement (3) présente la forme d'un rectangle, d'un trapèze ou d'un parallélogramme entrelacé, et en ce que les extrémités libres des bandes métalliques (4, 5) sont reliées à une enveloppe (2) qui les recouvre, selon une technique d'assemblage.
  2. Matrice métallique de support selon la revendication 1, caractérisée en ce que la matrice métallique de support (1) consiste en des empilements (3) qui ont des dimensions différentes aussi bien en épaisseur qu'en longueur.
  3. Matrice métallique de support selon la revendication 1 ou 2, caractérisée en ce que, pour des formes rondes ou approximativement carrées de la section transversale de la matrice métallique de support (1), les surfaces d'appui des quatre empilements (3) disposés les uns contre les autres, constituent avant l'entrelacement la forme d'une croix (6).
  4. Matrice métallique de support selon la revendication 1 ou 2, caractérisée en ce que, pour des formes elliptiques ou autres de la section transversale de la matrice métallique de support (1), les surfaces d'appui des quatre empilements (3) disposés les uns contre les autres constituent, avant l'entrelacement, la forme d'une croix (7) décalée dans un plan de translation (E-E).
  5. Matrice métallique de support selon la revendication 1 ou 2, caractérisée en ce que, pour des formes elliptiques, ou proches d'une ellipse, de la section transversale de la matrice métallique de support (1), quatre empilements (3) en forme de parallélogramme sont disposés les uns contre les autres en forme de croix de telle manière qu'il en résulte, au centre de la matrice métallique de support (1), une cavité carrée (9) qui est fermée après l'entrelacement du fait que la matrice métallique de support (1) est pressée pour présenter la forme désirée elliptique ou proche d'une ellipse de la section transversale.
  6. Matrice métallique de support selon l'une des revendications précédentes, caractérisée en ce que la matrice métallique de support (1) est conçue dans la zone centrale, à symétrie ponctuelle et en ce qu'elle s'écarte, dans les zones de bord, de la forme à symétrie ponctuelle.
  7. Matrice métallique de support selon l'une des revendications précédentes, caractérisée en ce que les bandes métalliques (4, 5) de la matrice métallique de support (1) sont reliées réciproquement par un procédé d'assemblage.
  8. Matrice métallique de support selon l'une des revendications 1, 6 ou 7, caractérisée en ce que la matrice métallique de support (1) consiste en huit empilements (3) qui sont disposés en forme d'étoile autour d'un point de symétrie (8) et sont entrelacés dans le même sens autour de ce point, les extrémités des empilements (3) se touchant dans le point de symétrie (8) par l'inclusion d'un angle aigu.
EP91105500A 1990-05-21 1991-04-08 Matrice métallique de support pour un réacteur catalytique Expired - Lifetime EP0458045B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4016276 1990-05-21
DE4016276A DE4016276C1 (fr) 1990-05-21 1990-05-21

Publications (2)

Publication Number Publication Date
EP0458045A1 EP0458045A1 (fr) 1991-11-27
EP0458045B1 true EP0458045B1 (fr) 1994-07-13

Family

ID=6406854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105500A Expired - Lifetime EP0458045B1 (fr) 1990-05-21 1991-04-08 Matrice métallique de support pour un réacteur catalytique

Country Status (5)

Country Link
US (1) US5342588A (fr)
EP (1) EP0458045B1 (fr)
JP (1) JPH0736896B2 (fr)
DE (2) DE4016276C1 (fr)
ES (1) ES2056512T3 (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4112354A1 (de) * 1991-04-16 1992-10-22 Behr Gmbh & Co Vorrichtung zum katalytischen entgiften von abgasen
DE4129824A1 (de) * 1991-09-07 1993-03-11 Behr Gmbh & Co Verfahren und vorrichtung zum herstellen eines traegerkoerpers fuer einen abgaskatalysator
DE4132439A1 (de) * 1991-09-28 1993-04-01 Behr Gmbh & Co Abgaskatalysator
DE4215986A1 (de) * 1992-05-14 1993-11-18 Emitec Emissionstechnologie Vorrichtung zur katalytischen Abgasreinigung
JP3392895B2 (ja) * 1993-01-08 2003-03-31 臼井国際産業株式会社 Ｘ−ラップタイプのメタルハニカム体
CZ86495A3 (en) * 1994-04-11 1995-11-15 Scambia Ind Dev Ag Catalyst means for catalytic treatment of exhaust gases, the catalyst as such and process for producing the catalyst means
US5670264A (en) * 1994-05-10 1997-09-23 Shertech, Inc. Thermal barrier
JPH0824670A (ja) * 1994-07-11 1996-01-30 Usui Internatl Ind Co Ltd 排気ガス浄化用メタルハニカム体
US5620666A (en) * 1994-07-11 1997-04-15 Usui Kokusai Sangyo Kabushiki Kaisha, Ltd. Exhaust gas cleaning metallic substrate
US5820835A (en) * 1995-07-12 1998-10-13 Engelhard Corporation Assembly and method for making catalytic converter structure
US5846495A (en) * 1995-07-12 1998-12-08 Engelhard Corporation Structure for converter body
AU6488196A (en) * 1995-07-12 1997-02-10 Engelhard Corporation Structure for converter body
US5651906A (en) * 1995-07-12 1997-07-29 W. R. Grace & Co.-Conn. Electrically heatable converter body having plural thin metal core elements attached only at outer ends
WO1997023275A1 (fr) * 1995-12-22 1997-07-03 W.R. Grace & Co.-Conn. Ensemble et procede de fabrication de structures de convertisseurs catalytiques
US5791044A (en) * 1995-12-22 1998-08-11 Engelhard Corporation Assembly and method for catalytic converter structures
US6602477B2 (en) 1996-08-05 2003-08-05 Usui Kokusai Sangyo Kaisha, Ltd. Metal honeycomb structure
DE19825018A1 (de) * 1998-06-04 1999-12-09 Emitec Emissionstechnologie Verfahren und Blechpaket zur Herstellung eines Wabenkörpers mit einer Vielzahl von für ein Fluid durchlässigen Kanälen
AU2001223877A1 (en) * 2000-01-11 2001-07-24 Aea Technology Plc Catalytic reactor
TW534945B (en) * 2000-11-13 2003-06-01 Catalytica Energy Sys Inc Thermally tolerant support structure for a catalytic combustion catalyst
AU2002331937B2 (en) * 2001-10-12 2007-07-05 Compactgtl Plc Catalytic reactor
GB0125035D0 (en) * 2001-10-18 2001-12-12 Accentus Plc Catalytic reactor
GB0125000D0 (en) * 2001-10-18 2001-12-05 Accentus Plc Catalytic reactor
GB0124999D0 (en) * 2001-10-18 2001-12-05 Accentus Plc Catalytic reactor
GB0218540D0 (en) * 2002-08-09 2002-09-18 Johnson Matthey Plc Engine exhaust treatment
GB0408896D0 (en) * 2004-04-20 2004-05-26 Accentus Plc Catalytic reactor
US7320778B2 (en) * 2004-07-21 2008-01-22 Catacel Corp. High-performance catalyst support
DE102005028044A1 (de) * 2005-06-17 2006-12-28 Emitec Gesellschaft Für Emissionstechnologie Mbh Herstellung von, insbesondere großen, Wabenkörpern für die mobile Abgasnachbehandlung
US7501102B2 (en) * 2005-07-28 2009-03-10 Catacel Corp. Reactor having improved heat transfer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3890104A (en) * 1970-11-03 1975-06-17 Getters Spa Catalytic cartridge
DE8717916U1 (de) * 1986-05-12 1991-03-21 Siemens AG, 80333 München Metallischer Katalysator-Trägerkörper mit evolventenförmig verlaufenden Schichten
DE3760479D1 (en) * 1986-05-12 1989-09-28 Interatom Honeycomb body, particularly a catalyst carrier, provided with opposedly folded metal sheet layers, and its manufacturing process
DE8612882U1 (de) * 1986-05-12 1987-10-29 INTERATOM GmbH, 5060 Bergisch Gladbach Metallischer Katalysator-Trägerkörper mit evolventenförmig verlaufenden Schichten
DE3743723C1 (de) * 1987-12-23 1989-04-20 Sueddeutsche Kuehler Behr Verfahren und Vorrichtung zur Herstellung eines Traegerkoerpers fuer einen katalytischen Reaktor
WO1990003220A1 (fr) * 1988-09-22 1990-04-05 Emitec Gesellschaft Für Emissionstechnologie Mbh Corps alveolaire, en particulier support de catalyseur, consistant en une pluralite de fardeaux de tole superposes
US4928485A (en) * 1989-06-06 1990-05-29 W. R. Grace & Co.,-Conn. Metallic core member for catalytic converter and catalytic converter containing same

Also Published As

Publication number Publication date
ES2056512T3 (es) 1994-10-01
JPH0736896B2 (ja) 1995-04-26
JPH04227855A (ja) 1992-08-17
US5342588A (en) 1994-08-30
DE59102153D1 (de) 1994-08-18
EP0458045A1 (fr) 1991-11-27
DE4016276C1 (fr) 1991-06-20

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