EP0233509B1 - Vorrichtung zur Halterung von Monolithkatalysatoren - Google Patents

Vorrichtung zur Halterung von Monolithkatalysatoren Download PDF

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Publication number
EP0233509B1
EP0233509B1 EP87100966A EP87100966A EP0233509B1 EP 0233509 B1 EP0233509 B1 EP 0233509B1 EP 87100966 A EP87100966 A EP 87100966A EP 87100966 A EP87100966 A EP 87100966A EP 0233509 B1 EP0233509 B1 EP 0233509B1
Authority
EP
European Patent Office
Prior art keywords
catalyst element
buffer sleeve
catalyst
metal frame
frame
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
Application number
EP87100966A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0233509A1 (de
Inventor
Reinhold Dr. Brand
Bernd Dr. Engler
Peter Kleine-Möllhoff
Edgar. Dr. Koberstein
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Priority to AT87100966T priority Critical patent/ATE41204T1/de
Publication of EP0233509A1 publication Critical patent/EP0233509A1/de
Application granted granted Critical
Publication of EP0233509B1 publication Critical patent/EP0233509B1/de
Expired 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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F01N3/2857—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets being at least partially made of intumescent material, e.g. unexpanded vermiculite
    • 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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2875—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration by using elastic means, e.g. spring leaves, for retaining catalyst body in the housing
    • 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
    • F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
    • F01N2350/02—Fitting ceramic monoliths in a metallic housing
    • F01N2350/06—Fitting ceramic monoliths in a metallic housing with means preventing gas flow by-pass or leakage

Definitions

  • Ceramic monoliths require secure and shock-absorbing fastening because of their risk of breakage under extreme operating conditions (vibrations, pressure surges, temperature changes). Since they cannot be produced in any size, there is still the need to combine several elements in one battery in order to e.g. to be able to enforce large gas volumes flowing from power plant exhaust gases per unit of time.
  • this disadvantage is eliminated by a device for holding quadrangular monolithic ceramic catalyst elements used for exhaust gas aftertreatment of combustion systems and for combining them into a package.
  • This device is provided with an elastic buffer sleeve corresponding to the outer shape of the catalyst element and positively slidable onto this and a metal frame corresponding to the outer shape of the catalyst element and buffer sleeve, encompassing the buffer sleeve, the internal free cross section of which is larger than the end face of the catalyst element and smaller than the sum the end faces of the catalyst element and the buffer sleeve or equal to the sum of these end faces.
  • the buffer sleeve can e.g. consist of mineral fiber, ceramic fiber, wire mesh or other temperature-resistant elastic materials. After it has been pushed onto the monolith from its end face (s), the metal frame is pushed over the sleeve, whereby the elastic sleeve can be compressed. This compression can also be achieved or reinforced by a sleeve material that expands once when heated. Such a material is e.g. a so-called expanded mica mat, e.g. a so-called expanded mica mat, e.g. is marketed by 3M under the name INTERAM @.
  • the required heat treatment can be carried out after installation or only during operation by exposure to hot exhaust gases, e.g. a hot flue gas.
  • the frame is provided on one end face with safety stops which encompass the end face of the catalytic converter and thus cause an axial displacement due to positive locking prevent the catalyst element.
  • the metal frame on its end face projects inwards with the formation of a continuous stop or a stop divided into a plurality of “tongues” for an edge zone of the end face of the catalyst element.
  • the combination of buffer sleeve and metal frame can therefore be provided for attachment to at least one end section of the catalyst element.
  • the left designed as an exploded drawing, shows a 1 m long monolithic ceramic catalyst element 1 of square cross-section (edge length 150 mm), which is traversed over its entire length by numerous square flow channels, in which the exhaust gas to be treated flows and comes into contact with the catalyst .
  • This can be a material component of the element or can be present as a coating on the ceramic material of the element.
  • a 3 cm deep frame 3 made of temperature-resistant steel corresponds to the outer shape of the monolith and sleeve and has a slightly smaller inner free cross-section than the sum of the end faces of the catalyst element and buffer sleeve (158 mm x 158 mm). It is provided on two adjacent side surfaces with rectangular recesses 4 in a matching shape and arrangement (dimensions 10 mm x 100 mm). The two other side surfaces are provided with rectangular projections 5, which can positively engage in the above-described recesses in adjacent frames of a package of held catalyst elements.
  • material V2A temperature-resistant steel
  • a stop plate 6 Attached to the outer edge of the metal frame is a stop plate 6 protruding 6 mm inwards perpendicularly to the side surface and supporting the edge zone of the monolith end face.
  • the frame is forced over the buffer sleeve during assembly and pushed onto it until the stop plates come into contact with the monolith face.
  • the monolith provided with the holding device at both ends can then be put together with other equally equipped monoliths via the tongue and groove connection 4/5 to form a catalyst package.
  • FIG. 2 shows the projection views onto the catalytic converter element 1, a buffer sleeve 2 and onto a frame 3.

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)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Crushing And Grinding (AREA)
EP87100966A 1986-02-01 1987-01-23 Vorrichtung zur Halterung von Monolithkatalysatoren Expired EP0233509B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87100966T ATE41204T1 (de) 1986-02-01 1987-01-23 Vorrichtung zur halterung von monolithkatalysatoren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8602600U 1986-02-01
DE8602600U DE8602600U1 (de) 1986-02-01 1986-02-01 Vorrichtung zur Halterung von Monolithkatalysatoren

Publications (2)

Publication Number Publication Date
EP0233509A1 EP0233509A1 (de) 1987-08-26
EP0233509B1 true EP0233509B1 (de) 1989-03-08

Family

ID=6791173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100966A Expired EP0233509B1 (de) 1986-02-01 1987-01-23 Vorrichtung zur Halterung von Monolithkatalysatoren

Country Status (7)

Country Link
US (1) US4859428A (ja)
EP (1) EP0233509B1 (ja)
JP (1) JPH0417217Y2 (ja)
AT (1) ATE41204T1 (ja)
DE (2) DE8602600U1 (ja)
ES (1) ES2000116B3 (ja)
GR (2) GR880300024T1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT220490Z2 (it) * 1990-04-13 1993-09-24 Gilardini Spa Convertitore catalitico per veicoli, in particolare autoveicoli
DE9013655U1 (de) * 1990-09-28 1990-12-06 L. & C. Steinmüller GmbH, 5270 Gummersbach Katalysatorkorbbaugruppe
JPH0661416B2 (ja) * 1991-02-25 1994-08-17 日本碍子株式会社 排ガス処理装置
EP0635626B1 (de) * 1993-07-07 1996-07-24 LEISTRITZ AG & CO. Abgastechnik Abgaskonverter
DE19820426C1 (de) * 1998-05-07 2000-03-16 Siemens Ag Katalysatormodul
US20090293464A1 (en) * 2008-05-30 2009-12-03 Caterpillar Inc. Assembly and method of assembly for exhaust treatment
US20110030355A1 (en) * 2009-08-10 2011-02-10 Vconverter Company Catalytic Converter and Process of Manufacture
US10024216B2 (en) 2016-12-15 2018-07-17 Caterpillar Inc. Retention system for aftertreatment module

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112634A1 (en) * 1982-12-08 1984-07-04 General Motors Corporation Ceramic monolith particulate filter trap support

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1426196A (en) * 1921-12-14 1922-08-15 Midwest Steel And Supply Compa Filter
CH343762A (de) * 1956-03-06 1959-12-31 Schirp Wolfgang Filter für die Reinigung von Gasen, speziell von Luft
US3487625A (en) * 1966-01-17 1970-01-06 Saint Gobain Techn Nouvelles Filter
FR1515158A (fr) * 1967-01-17 1968-03-01 Sfec Perfectionnements aux supports des catalyseurs
US3721067A (en) * 1970-11-12 1973-03-20 B Agnew Clean air system for hospital operating rooms
DE2261663C2 (de) * 1972-12-16 1983-07-14 Fa. J. Eberspächer, 7300 Esslingen Elastische Lagerung für keramische Katalysatorträger
DE2442488A1 (de) * 1974-09-05 1976-03-18 Daimler Benz Ag Vorrichtung zur katalytischen reinigung der auspuffgase von brennkraftmaschinen, insbesondere von kraftfahrzeugbrennkraftmaschinen
US4048363A (en) * 1976-06-16 1977-09-13 Minnesota Mining And Manufacturing Company Offset laminated intumescent mounting mat
JPS556042U (ja) * 1978-06-27 1980-01-16
US4294806A (en) * 1979-02-14 1981-10-13 Sakai Chemical Industry Co., Ltd. Method for preventing the wear of a monolithic catalyst by dusts
ZA804936B (en) * 1979-08-22 1981-09-30 Nat Res Dev Hydraulic cements
JPS5684621A (en) * 1979-12-13 1981-07-10 Mitsubishi Heavy Ind Ltd Catalyst packaged to rectangular parallelepiped
US4335023A (en) * 1980-01-24 1982-06-15 Engelhard Corporation Monolithic catalyst member and support therefor
JPS6017217Y2 (ja) * 1980-05-19 1985-05-27 三菱重工業株式会社 固気接触反応装置
US4419108A (en) * 1982-02-22 1983-12-06 Corning Glass Works Filter apparatus and method of filtering
DE3330132A1 (de) * 1983-08-20 1985-02-28 H. Krantz Gmbh & Co, 5100 Aachen Rahmen
DE3430886A1 (de) * 1984-08-22 1986-02-27 Didier Engineering Gmbh, 4300 Essen Katalysator zum abscheiden von stickoxiden aus verbrennungsabgasen
US4663934A (en) * 1985-04-01 1987-05-12 Arvin Industries, Inc. Manifold exhaust processor
US4636232A (en) * 1985-12-16 1987-01-13 Amway Corporation Filter stack

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112634A1 (en) * 1982-12-08 1984-07-04 General Motors Corporation Ceramic monolith particulate filter trap support

Also Published As

Publication number Publication date
DE8602600U1 (de) 1986-03-13
ES2000116B3 (es) 1992-02-01
ATE41204T1 (de) 1989-03-15
ES2000116A4 (es) 1987-12-16
JPS62126225U (ja) 1987-08-11
US4859428A (en) 1989-08-22
GR3000038T3 (en) 1990-01-31
JPH0417217Y2 (ja) 1992-04-17
GR880300024T1 (en) 1988-10-18
DE3760059D1 (en) 1989-04-13
EP0233509A1 (de) 1987-08-26

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