IT1024780B - Procedimento per la prefabbricazione di corpi attraversati da canali barticolarmente per sopportare catalizzatori - Google Patents

Procedimento per la prefabbricazione di corpi attraversati da canali barticolarmente per sopportare catalizzatori

Info

Publication number
IT1024780B
IT1024780B IT70281/74A IT7028174A IT1024780B IT 1024780 B IT1024780 B IT 1024780B IT 70281/74 A IT70281/74 A IT 70281/74A IT 7028174 A IT7028174 A IT 7028174A IT 1024780 B IT1024780 B IT 1024780B
Authority
IT
Italy
Prior art keywords
barticularly
prefabrication
channels
procedure
crossed
Prior art date
Application number
IT70281/74A
Other languages
English (en)
Original Assignee
Atomic Energy Authority Uk
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 Atomic Energy Authority Uk filed Critical Atomic Energy Authority Uk
Application granted granted Critical
Publication of IT1024780B publication Critical patent/IT1024780B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0001—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B01D46/525—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes
    • B01D46/527—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes in wound arrangement
    • 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
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/10—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form into a peculiar profiling shape
    • 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
    • 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
    • F01N3/2825—Ceramics
    • F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
    • 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
    • F01N2330/06—Ceramic, e.g. 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
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • F01N2330/40—Honeycomb supports characterised by their structural details made of a single sheet, foil or plate
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • 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
    • Y10T428/12333—Helical or with helical component
    • 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
    • Y10T428/1241—Nonplanar uniform thickness or nonlinear uniform diameter [e.g., L-shape]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Laminated Bodies (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Filtering Materials (AREA)
IT70281/74A 1973-11-08 1974-11-07 Procedimento per la prefabbricazione di corpi attraversati da canali barticolarmente per sopportare catalizzatori IT1024780B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51974/73A GB1491206A (en) 1973-11-08 1973-11-08 Catalyst bodies

Publications (1)

Publication Number Publication Date
IT1024780B true IT1024780B (it) 1978-07-20

Family

ID=10462161

Family Applications (1)

Application Number Title Priority Date Filing Date
IT70281/74A IT1024780B (it) 1973-11-08 1974-11-07 Procedimento per la prefabbricazione di corpi attraversati da canali barticolarmente per sopportare catalizzatori

Country Status (7)

Country Link
US (1) US3966646A (it)
JP (1) JPS50148271A (it)
DE (1) DE2452929A1 (it)
FR (1) FR2250569B1 (it)
GB (1) GB1491206A (it)
IT (1) IT1024780B (it)
SE (1) SE7414009L (it)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160371A (en) * 1975-06-04 1979-07-10 Iog Industrie-Ofenbau Gmbh Apparatus for making a spiral coil having spaced turns
DE2524763C3 (de) * 1975-06-04 1982-07-08 IOG Industrie-Ofenbau GmbH, 4000 Düsseldorf Metallband für einen gewickelten Bund und Vorrichtung zur Herstellung des Metallbandes
GB1531134A (en) * 1975-08-20 1978-11-01 Atomic Energy Authority Uk Methods of fabricating bodies and to bodies so fabricated
US4065268A (en) * 1975-09-15 1977-12-27 Betz Erwin C Non-uniform crimped metal ribbon packed catalyst bed and method using same
US4056373A (en) * 1976-05-12 1977-11-01 Resource Systems, Inc. Hydrogen-purification apparatus with palladium-alloy filter coil
DE2853547C2 (de) * 1978-12-12 1983-11-03 Degussa Ag, 6000 Frankfurt Von Strömungskanälen durchzogener Träger für Katalysatoren mit Querstromeffekt und Verwendung
JPS55145537A (en) * 1979-04-27 1980-11-13 Suzuki Motor Co Ltd Metal carrier catalyst
DE2937757A1 (de) * 1979-09-19 1981-04-09 Degussa Ag, 6000 Frankfurt Mechanisch stabile siebgewebeanordnung aus metall
US4300956A (en) * 1980-04-14 1981-11-17 Matthey Bishop, Inc. Method of preparing a metal substrate for use in a catalytic converter
US4388277A (en) * 1980-06-06 1983-06-14 United Kingdom Atomic Energy Authority Catalyst device and method
GB2093744A (en) * 1981-02-26 1982-09-08 Universal Products Hull Ltd A jig for use in bending strip bar pipe or the like material
DE3341868A1 (de) * 1983-11-19 1985-05-30 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Matrix fuer einen katalytischen reaktor
JPS6161008U (it) * 1984-08-29 1986-04-24
JPH0356253Y2 (it) * 1985-02-05 1991-12-17
DE3527111A1 (de) * 1985-07-29 1987-01-29 Interatom Metallischer, gewickelter abgaskatalysatortraegerkoerper mit geometrisch komplizierter form des querschnitts sowie verfahren, vorrichtung und rohling zu seiner herstellung
US4619912A (en) * 1985-09-03 1986-10-28 General Motors Corporation Catalytic converter substrate
DE3534904A1 (de) * 1985-09-30 1987-04-02 Interatom Aus blechen gewickelter oder geschichteter metallischer katalysatortraegerkoerper mit doppel- oder mehrfachwellenstruktur
US4711009A (en) * 1986-02-18 1987-12-08 W. R. Grace & Co. Process for making metal substrate catalytic converter cores
EP0270856B1 (de) * 1986-11-20 1993-07-28 Emitec Gesellschaft für Emissionstechnologie mbH Metallischer Katalysator-Trägerkörper und Verfahren zu seiner Herstellung
EP0279159B2 (de) * 1987-01-19 1995-07-05 Emitec Gesellschaft für Emissionstechnologie mbH Metallischer Katalysator-Trägerkörper aus zwei unterschiedlich gewellten Blechlagen
US4753919A (en) * 1987-03-23 1988-06-28 W. R. Grace & Co. Method for optimizing stacking characteristics of corrugated metal foil
JP2554490B2 (ja) * 1987-05-07 1996-11-13 臼井国際産業株式会社 排気ガス浄化用触媒を担持させるための金属製担持母体の製造法
US4810588A (en) * 1988-05-24 1989-03-07 W. R. Grace & Co.-Conn. Nonnesting, straight corrugation metal foil and method for making same
JP2651544B2 (ja) * 1988-09-06 1997-09-10 カルソニック株式会社 触媒担体の製造方法
JPH0733875Y2 (ja) * 1989-05-08 1995-08-02 臼井国際産業株式会社 排気ガス浄化装置
FR2661477B1 (fr) * 1990-04-26 1992-07-10 Inst Francais Du Petrole Procede de fabrication d'une structure creuse utilisable notamment pour le stockage de fluides sous pression et structure resultante.
US5160722A (en) * 1991-06-17 1992-11-03 Johnson Matthey, Inc. Low pressure drop, high surface area ammonia oxidation catalyst
US5356603A (en) * 1991-06-17 1994-10-18 Johnson Matthey Inc. Method for the production of hydrocyanic acid using a corrugated catalyst
EP0650552B1 (de) * 1992-07-14 1996-04-17 Emitec Gesellschaft für Emissionstechnologie mbH Metallischer wabenkörper aus verschlungenen blechlagen und verfahren zu seiner herstellung
US5402928A (en) * 1993-08-17 1995-04-04 Astech/Mci Manufacturing, Inc. Method of making flute tube
US5737918A (en) * 1994-01-17 1998-04-14 Joint Stock Commercial Bank "Petrovsky" Apparatus for cleaning exhaust gases of solid particles, design of a unit for neutralizing harmful gaseous emissions and a method for the manufacture of this unit
SE504999C2 (sv) * 1994-06-07 1997-06-09 Freshman Ab Insats för luftflödeskanaler
US5660778A (en) * 1995-06-26 1997-08-26 Corning Incorporated Method of making a cross-flow honeycomb structure
US5791044A (en) * 1995-12-22 1998-08-11 Engelhard Corporation Assembly and method for catalytic converter structures
US5737839A (en) * 1995-12-22 1998-04-14 Engelhard Corporation Assembly and method for making catalytic converter structures
WO1997023273A1 (en) * 1995-12-22 1997-07-03 W.R. Grace & Co.-Conn. Assembly and method for making catalytic converter structure
JP3434117B2 (ja) * 1996-03-29 2003-08-04 住友電気工業株式会社 ディーゼルエンジン用パティキュレートトラップ
US5820646A (en) * 1996-04-26 1998-10-13 Donaldson Company, Inc. Inline filter apparatus
WO1998056573A1 (en) 1997-06-09 1998-12-17 Atd Corporation Shaped multilayer metal foil shield structures and method of making
BR9809992A (pt) * 1997-06-09 2001-10-02 Atd Corp Protetores de chapa metálica de camadas múltiplas corrugadas flexìveis e processo para fabricação
US5958603A (en) * 1997-06-09 1999-09-28 Atd Corporation Shaped multilayer metal foil shield structures and method of making
US5939212A (en) 1997-06-09 1999-08-17 Atd Corporation Flexible corrugated multilayer metal foil shields and method of making
US6130182A (en) * 1997-07-25 2000-10-10 International Business Machines Corporation Dielectric catalyst structures
US6197267B1 (en) 1997-07-25 2001-03-06 International Business Machines Corporation Catalytic reactor
US6193832B1 (en) * 1997-07-25 2001-02-27 International Business Machines Corporation Method of making dielectric catalyst structures
ES2233056T3 (es) 1998-07-09 2005-06-01 Atd Corporation Parrilla portatil de gas.
US6238561B1 (en) * 1999-09-24 2001-05-29 Nelson Industries, Inc. Corrugated axial filter with simple fold pattern and method of making it
US6823571B1 (en) * 2000-01-24 2004-11-30 Atd Corporation Apparatus and method for manufacture of multilayer metal products
US6582490B2 (en) 2000-05-18 2003-06-24 Fleetguard, Inc. Pre-form for exhaust aftertreatment control filter
US7052532B1 (en) 2000-03-09 2006-05-30 3M Innovative Properties Company High temperature nanofilter, system and method
US6946012B1 (en) * 2000-05-18 2005-09-20 Fleetguard, Inc. Filter and forming system
US20040096604A1 (en) * 2002-11-18 2004-05-20 Sonoco Development, Inc. Wound multi-layer tube having one or more embossed plies
US8226786B2 (en) * 2003-03-18 2012-07-24 Donaldson Company, Inc. Process and materials for coiling z-filter media, and/or closing flutes of filter media; and, products
US7507844B2 (en) * 2005-05-09 2009-03-24 Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg Nanometer scale restructuring of alumina carrier surface and catalysts for the production of alkene oxides
KR100746170B1 (ko) 2005-05-12 2007-08-03 주식회사 다인기술 다각형 단면을 갖는 지관의 제조 방법 및 장치, 그 방법에의하여 제조된 지관
US20060280883A1 (en) * 2005-06-14 2006-12-14 Sonoco Development, Inc. Wound sandwich tube with corrugated shell
DE102005043196A1 (de) * 2005-09-09 2007-03-15 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren zur Herstellung eines ringförmigen Wabenkörpers, sowie ringförmiger Wabenkörper
JP2007196992A (ja) * 2005-12-29 2007-08-09 Tk Holdings Inc アキシャルフローフィルターを備えたガス生成システム
EP2190554B1 (en) 2007-09-07 2013-01-09 Donaldson Company, Inc. Air filter assembly
CN101791658B (zh) * 2010-04-12 2012-10-17 杭州汽轮机股份有限公司 汽轮机钢带式蒸汽滤网卷绕装置
WO2012171832A1 (de) * 2011-06-16 2012-12-20 Reinhardt, Gaby Traute Druck-speichereinrichtung
JP7398956B2 (ja) * 2016-12-12 2023-12-15 ドナルドソン カンパニー，インコーポレイティド フィルタ媒体、フィルタ媒体パックおよびフィルタ要素
CN115400518B (zh) 2017-09-25 2024-03-26 唐纳森公司 过滤器组件
JP2021528227A (ja) 2018-06-11 2021-10-21 ドナルドソン カンパニー，インコーポレイティド フィルタ媒体、フィルタ媒体要素及びフィルタ要素
JP2022519925A (ja) 2019-03-27 2022-03-25 ドナルドソン カンパニー，インコーポレイティド 軸方向に延在する流れ面を有するパーティクルセパレータフィルタ

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US574157A (en) * 1896-12-29 ljtjngstrom
US1090593A (en) * 1912-02-01 1914-03-17 Charles Leffler & Company Method of forming boxes and tubes.
US1639133A (en) * 1926-01-25 1927-08-16 Oscar V Greene Filter element
US2373218A (en) * 1942-11-11 1945-04-10 Modine Mfg Co Oil cooler tube
US2696976A (en) * 1949-06-22 1954-12-14 Jarvis C Marble Element set for air preheaters
US2757628A (en) * 1952-09-17 1956-08-07 Gen Motors Corp Method of making a multiple passage heat exchanger tube
US2784802A (en) * 1955-05-04 1957-03-12 Mine Safety Appliances Co Folded filter element
US3112184A (en) * 1958-09-08 1963-11-26 Corning Glass Works Method of making ceramic articles
US3432859A (en) * 1963-01-29 1969-03-11 Gen Electric Radome and method for making same

Also Published As

Publication number Publication date
JPS50148271A (it) 1975-11-27
DE2452929A1 (de) 1975-05-22
FR2250569A1 (it) 1975-06-06
FR2250569B1 (it) 1981-05-29
GB1491206A (en) 1977-11-09
US3966646A (en) 1976-06-29
SE7414009L (it) 1975-05-09

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