EP0233509A1 - Support pour catalyseurs monolithiques - Google Patents

Support pour catalyseurs monolithiques Download PDF

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Publication number
EP0233509A1
EP0233509A1 EP87100966A EP87100966A EP0233509A1 EP 0233509 A1 EP0233509 A1 EP 0233509A1 EP 87100966 A EP87100966 A EP 87100966A EP 87100966 A EP87100966 A EP 87100966A EP 0233509 A1 EP0233509 A1 EP 0233509A1
Authority
EP
European Patent Office
Prior art keywords
catalyst element
buffer sleeve
face
catalyst
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.)
Granted
Application number
EP87100966A
Other languages
German (de)
English (en)
Other versions
EP0233509B1 (fr
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/fr
Application granted granted Critical
Publication of EP0233509B1 publication Critical patent/EP0233509B1/fr
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

  • the innovation relates to a device for holding square, z. B. square or rectangular monolithic ceramic catalyst elements to reduce pollutant emissions from combustion plants, for. B. combustion plants for thermal power plants, and to combine such catalyst elements into a package.
  • 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 can not be produced in any size, there is still the need to combine several elements in a battery to the z. B. in power plant emissions per unit of time flowing large gas volumes.
  • the buffer sleeve can e.g. B. 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. B. a so-called expanded mica mat, as z. B. is sold by the company 3M under the name INTERAM®.
  • the required heat treatment can be carried out after installation or only in operation by exposure to hot exhaust gases, e.g. B. a hot flue gas can be made.
  • the frame is provided on one end face with securing stops which engage around the end face of the catalyst and thus prevent axial displacement of the catalyst element by positive locking.
  • 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 long buffer sleeve 2 made of elastic wire mesh with a slightly smaller free inner cross-section than the end face of the monolith (149 mm ⁇ 149 mm) is forced onto the latter in such a way that its outer end face ends flush with the end face of the monolith.
  • 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 ⁇ 158 mm). It is provided on two adjacent side surfaces with rectangular recesses 4 in a matching shape and arrangement (dimensions 10 mm ⁇ 100 mm). The two remaining 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)
  • Crushing And Grinding (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
EP87100966A 1986-02-01 1987-01-23 Support pour catalyseurs monolithiques Expired EP0233509B1 (fr)

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 true EP0233509A1 (fr) 1987-08-26
EP0233509B1 EP0233509B1 (fr) 1989-03-08

Family

ID=6791173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100966A Expired EP0233509B1 (fr) 1986-02-01 1987-01-23 Support pour catalyseurs monolithiques

Country Status (7)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660966A1 (fr) * 1990-04-13 1991-10-18 Gilardini Spa Convertisseur catalytique pour vehicules, en particulier pour vehicules automobiles.
EP0501733A1 (fr) * 1991-02-25 1992-09-02 Ngk Insulators, Ltd. Dispositif d'épuration des gaz d'échappement
EP0635626A1 (fr) * 1993-07-07 1995-01-25 LEISTRITZ AG & CO. Abgastechnik Convertisseur de gaz d'échappement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9013655U1 (de) * 1990-09-28 1990-12-06 L. & C. Steinmüller GmbH, 5270 Gummersbach Katalysatorkorbbaugruppe
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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1515158A (fr) * 1967-01-17 1968-03-01 Sfec Perfectionnements aux supports des catalyseurs
FR2211041A5 (fr) * 1972-12-16 1974-07-12 Eberspaecher J
FR2284028A1 (fr) * 1974-09-05 1976-04-02 Daimler Benz Ag Dispositif pour l'epuration catalytique des gaz d'echappement de moteurs a combustion interne, en particulier de moteurs de vehicules automobiles
US4238455A (en) * 1978-06-27 1980-12-09 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Denitrification reactor
DE3046921A1 (de) * 1979-12-13 1981-09-17 Mitsubishi Jukogyo K.K., Tokyo Rechteckige gebuendelte festkoerperkatalysatoranordnung
US4294806A (en) * 1979-02-14 1981-10-13 Sakai Chemical Industry Co., Ltd. Method for preventing the wear of a monolithic catalyst by dusts
EP0172396A2 (fr) * 1984-08-22 1986-02-26 Didier-Werke Ag Catalyseur pour l'élimination d'oxydes d'azote de gaz brûlés

Family Cites Families (13)

* 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
US3721067A (en) * 1970-11-12 1973-03-20 B Agnew Clean air system for hospital operating rooms
US4048363A (en) * 1976-06-16 1977-09-13 Minnesota Mining And Manufacturing Company Offset laminated intumescent mounting mat
ZA804936B (en) * 1979-08-22 1981-09-30 Nat Res Dev Hydraulic cements
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
US4462812A (en) * 1982-12-08 1984-07-31 General Motors Corporation Ceramic monolith particulate trap including filter support
DE3330132A1 (de) * 1983-08-20 1985-02-28 H. Krantz Gmbh & Co, 5100 Aachen Rahmen
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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1515158A (fr) * 1967-01-17 1968-03-01 Sfec Perfectionnements aux supports des catalyseurs
FR2211041A5 (fr) * 1972-12-16 1974-07-12 Eberspaecher J
FR2284028A1 (fr) * 1974-09-05 1976-04-02 Daimler Benz Ag Dispositif pour l'epuration catalytique des gaz d'echappement de moteurs a combustion interne, en particulier de moteurs de vehicules automobiles
US4238455A (en) * 1978-06-27 1980-12-09 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Denitrification reactor
US4294806A (en) * 1979-02-14 1981-10-13 Sakai Chemical Industry Co., Ltd. Method for preventing the wear of a monolithic catalyst by dusts
DE3046921A1 (de) * 1979-12-13 1981-09-17 Mitsubishi Jukogyo K.K., Tokyo Rechteckige gebuendelte festkoerperkatalysatoranordnung
EP0172396A2 (fr) * 1984-08-22 1986-02-26 Didier-Werke Ag Catalyseur pour l'élimination d'oxydes d'azote de gaz brûlés

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 3, Nr. 126 (M-77), 20. Oktober 1979, 36 M 77; & JP-A-54 102 414 (HONDA GIKEN KOGYO K.K.) 08-11-1979 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660966A1 (fr) * 1990-04-13 1991-10-18 Gilardini Spa Convertisseur catalytique pour vehicules, en particulier pour vehicules automobiles.
ES2043480A1 (es) * 1990-04-13 1993-12-16 Gilardini Spa Convertidor catalitico para vehiculos, en particular autovehiculos.
EP0501733A1 (fr) * 1991-02-25 1992-09-02 Ngk Insulators, Ltd. Dispositif d'épuration des gaz d'échappement
US5228892A (en) * 1991-02-25 1993-07-20 Ngk Insulators, Ltd. Exhaust emission control device
EP0635626A1 (fr) * 1993-07-07 1995-01-25 LEISTRITZ AG & CO. Abgastechnik Convertisseur de gaz d'échappement

Also Published As

Publication number Publication date
EP0233509B1 (fr) 1989-03-08
US4859428A (en) 1989-08-22
ES2000116A4 (es) 1987-12-16
ES2000116B3 (es) 1992-02-01
GR3000038T3 (en) 1990-01-31
JPS62126225U (fr) 1987-08-11
JPH0417217Y2 (fr) 1992-04-17
ATE41204T1 (de) 1989-03-15
DE3760059D1 (en) 1989-04-13
DE8602600U1 (de) 1986-03-13
GR880300024T1 (en) 1988-10-18

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