EP0851999B1 - Echangeur de chaleur a faisceau tubulaire places en aval d'installations thermiques de craquage, procede de revetement d'une plaque a tubes et utilisation d'un pise refractaire - Google Patents

Echangeur de chaleur a faisceau tubulaire places en aval d'installations thermiques de craquage, procede de revetement d'une plaque a tubes et utilisation d'un pise refractaire Download PDF

Info

Publication number
EP0851999B1
EP0851999B1 EP96931808A EP96931808A EP0851999B1 EP 0851999 B1 EP0851999 B1 EP 0851999B1 EP 96931808 A EP96931808 A EP 96931808A EP 96931808 A EP96931808 A EP 96931808A EP 0851999 B1 EP0851999 B1 EP 0851999B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
coating
tubular heat
tube plate
mass
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
EP96931808A
Other languages
German (de)
English (en)
Other versions
EP0851999A1 (fr
Inventor
Bernhard Rosengarten
Jürgen Paul
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.)
Ruhr Oel GmbH
Original Assignee
Ruhr Oel 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7772623&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0851999(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ruhr Oel GmbH filed Critical Ruhr Oel GmbH
Publication of EP0851999A1 publication Critical patent/EP0851999A1/fr
Application granted granted Critical
Publication of EP0851999B1 publication Critical patent/EP0851999B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49364—Tube joined to flat sheet longitudinally, i.e., tube sheet

Definitions

  • the invention relates to a thermal cracking system downstream tube bundle heat exchanger (RWÜ) with a tube bundle held between two tube plates of heat exchanger tubes, a method for coating a tube plate and the use of a ramming mass.
  • RWÜ thermal cracking system downstream tube bundle heat exchanger
  • Such RWÜ are used for example in ethylene plants for the production of ethylene by thermal splitting on the downstream side of a transfer line of a splitting furnace used and referred to as cracked gas cooler.
  • Cracked gas coolers must meet extremely high requirements in terms of construction and the material properties are sufficient. That by pyrolysis of hydrocarbons like Hot naphtha, heavy gasoline or ethane emerging from the cracking furnace Reaction mixture (approx. 850 ° C) must be cooled quickly in the cracked gas coolers to avoid unwanted side reactions.
  • the cracked gas cooler or RWÜ serves as Waste heat boiler, in which by evaporation from the jacket side Feed water high pressure steam is generated.
  • the cracking gas coming out of the cracking furnace at high speed emerges usually via an axially arranged transfer line Hood socket from below into the cracked gas cooler and hits the lower tube plate, to one after passing through the heat exchanger tubes of the cracked gas cooler Oil washing and further processing to be fed.
  • the cracked gas contains about 300 m / s already coke particles, which are strongly eroding at these speeds Act.
  • the central areas of the floor slab and The pipes arranged in the area of the core zone are accordingly becoming stronger eroded as the peripheral areas.
  • each Spout has a conical opening that narrows into a pipe section that in a heat exchanger tube protrudes.
  • This solution does not provide a gas-tight seal between the individual cuboid elements. This would be in cracked gas coolers an olefin plant lead to coke formation in the spaces and the materials to destroy.
  • the ends of the spouts used would have a tear-off edge in the Pipe form what at the flow velocities driven in cracked gas coolers Turbulence of approximately 300 m / s with the consequence of additional erosions would cause.
  • DE-C-44 04068 discloses a ceramic cladding made of refractory Shaped bodies is formed. These can be hexagonal, for example, and are with Provide perforations through the welded to the underside of the tube sheet Can reach through pins or hooks. The molded body is in this way on Pipe base hung. This construction does not provide a seamless coating reached.
  • the gas flowing from the gas at high speed should be in the area the core flow entrained coke particles slowed down and partially radially be steered outside so that they no longer cause erosion damage to the tube plate and lead the pipes.
  • the gas flowing from the gas at high speed should be in the area the core flow entrained coke particles slowed down and partially radially be steered outside so that they no longer cause erosion damage to the tube plate and lead the pipes.
  • the invention takes a different approach by reinforcing the floor slab effective erosion protection is sought.
  • the erosions on the lower tube plate made periodic shutdowns of the cracked gas cooler necessary, one so has helped the base plates to the required again by means of weld surfacing Bring wall thickness.
  • This process is complex and can be done in terms of Resistance of the material applied by build-up welding also unsatisfactory.
  • the base plate does not only act like a baffle plate and therefore special erosion is exposed, but at the same time should be relatively thin in order to make one possible to be able to achieve a low interface temperature. This is from apparatus engineering Desirable reasons and also advantageous because the entering gases should be cooled as quickly as possible, without previously undesirable To enter into side reactions.
  • the coating can have a thickness of 10 to 50, preferably 15 to 30 mm.
  • Pipe plate anchor preferably in V, T, S or Y shape, especially with a Diameter of about 5 mm or a sheet metal structure in honeycomb structure, preferably with a height of 5 to 10 mm, are welded on.
  • Such anchors are available as ECO-VINs for various lining thicknesses Sheet steel welded linings with backing in firing Systems known, the legs of the to better anchor the ramming mass Anchor can be bent to about 60 ° C. The anchors can be spread out or welded onto the lower tube plate in a spread version.
  • the coating with the ramming mass from a chemically bound, against Erosion resistant refractory material is made either by hand or for larger areas are applied by spraying and manually, for example by means of Flat steel and hammer, or compacted using machine tools.
  • ramming compounds sometimes also known as ramming compounds
  • chemically setting compounds consisting primarily of inorganic raw materials are used.
  • the setting takes place in the presence of air.
  • An important raw material is corundum, for example.
  • a typical composition of such compositions is, for example, 85 percent by weight Al 2 O 3 , 7 percent by weight SiO 2 , 0.3 percent by weight Fe 2 O 3 , 3.1 percent by weight MgO, 4.5 percent by weight P 2 O 5 and 0.1 percent by weight alkalis (approx -Values).
  • the maximum grain size of the individual components should not exceed 4 mm.
  • This inorganic mixture is mixed with water for processing or for the manufacture of the ramming mass and then processed. After the ramming compound has been applied, it is usually allowed to set for at least 24 hours. Then drying or
  • the thermal conductivity of the set ramming compound or coating is between 1.5 and 3.5 W / mK.
  • the abrasion of this coating is less than 8 cm 3 (according to ASTM C-704)
  • RESCO-CAST a product of RESCO
  • RESCO is suitable as ramming paste Products Inc.
  • Other suitable products on the market are as Rammasse called PLIRAM Cyclone-Mix D from Plibrico GmbH.
  • the above Products are from practice z. B. for the inner lining of FCC (Fluid Catalytic Cracker) -System parts known. Such system parts are lined in which the fluidized FCC catalyst with temperatures of about 750 ° C Moving speed from 20 to 30 m / s.
  • FCC Fluid Catalytic Cracker
  • the invention further relates to a method for coating a tube plate in an RWÜ according to the features of claim 1.
  • the pipe openings are on the input tube plate Plug closed. These plugs protrude at least to the height of the layer coating to be applied out of the pipes. Then the Pounded mass applied. This can be done manually using a spatula or trowel or also by spraying.
  • the ramming mass is then mechanically compressed e.g. B. by hammer blows transmitted by means of flat iron. After setting the The plugs are removed from tamped mass of usually at least 24 hours and the ramming mass may be dried or baked.
  • the ramming compounds described are for coating floor slabs in Ideally, downstream tube bundle heat exchangers downstream of thermal cracking systems suitable.
  • V-anchors or ECO-VIN anchors are placed on a base plate Figures 1 and 2 of the drawing embodiment shown from a austenitic steel (1.4841) welded on.
  • the inner tubes of the RWÜ are closed by conical wooden plugs, so that the ramming mass holds on both the anchors and the plugs.
  • the one from PLIRAM Cyclone-Mix D existing ramming mass is corrugated with 2 wt .-% Steel fibers C-Mix 25 (material 1.4841) mixed.
  • the ramming compound is applied manually using a spatula and trowel.
  • the ramming compound applied is then section by section hammer blows transmitted by means of flat iron to a void-free Coating compacted. After a setting time of approx. 25 hours at the conical wooden plugs are removed again at normal outside temperature.
  • the ramming mass is dried and then burned in according to a specified temperature curve according to the manufacturer's instructions.
  • FIG. 1 shows a tube sheet according to the invention in plan view (viewed from below).
  • Fig. 2 shows a section through a cracked gas cooler with an inventive Coating in the area of the base plate.
  • Base plates are protected from further erosion. They are also subject to Bottom plates equipped according to the invention against erosion by coke particles. in the The erosion is compared to the unprotected metallic material of the base plate Bottom plates coated according to the invention are significantly slower, so that a improved availability of the corresponding plant parts results. Incidentally, at Wear removal and reapplication of the invention Coating possible.
  • the metal base plate no longer has to be as thin, but can be carried out more. Because of the constructive achieved thereby Stabilization can be at least partly due to the fact that thin floor slabs are used Stabilization necessary tie rods are dispensed with.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (8)

  1. Procédé de revêtement sans laisser d'intervalle d'une plaque à tubes d'un échangeur de chaleur à faisceau tubulaire en aval d'une installation thermique de craquage,
    caractérisé en ce que
    on ferme avec des bouchons les tubes échangeurs de chaleur tenus par la plaque à tubes, ces bouchons dépassant après mise en place, au moins de la hauteur de l'épaisseur d'une couche de revêtement à mettre en place,
    on met en place une masse de bourrage à prise chimique comme couche de revêtement de la plaque à tubes,
    on compacte mécaniquement la masse,
    on laisse prendre la masse,
    on enlève les bouchons, et
    le cas échéant on cuit la masse.
  2. Procédé selon la revendication 1,
    caractérisé en ce qu'
    avant d'appliquer la masse, on soude sur la plaque à tubes une construction en tôle en forme de nids d'abeilles ou des organes d'accrochage.
  3. Echangeur de chaleur à faisceau tubulaire en aval d'installations thermiques de craquage, comprenant un faisceau de tubes échangeurs de chaleur tenu entre deux plaques à tubes et sur la plaque à tubes du côté de l'entrée, un revêtement résistant à l'érosion, réfractaire, laissant dégagées les ouvertures des tubes échangeurs de chaleur, du côté de la plaque à tubes tourné vers l'arrivée des gaz,
    caractérisé en ce que
    le revêtement est formé d'une masse de bourrage à prise chimique appliquée selon le procédé de la revendication 1.
  4. Echangeur de chaleur à faisceau tubulaire selon la revendication 3,
    caractérisé en ce que
    le revêtement formé de la masse de bourrage après prise a une épaisseur de 10 à 50, de préférence de 15 à 30 mm.
  5. Echangeur de chaleur à faisceau tubulaire selon la revendication 3 ou 4,
    caractérisé en ce que
    pour améliorer l'accrochage de la masse de bourrage sur la plaque à tubes, on soude sur celle-ci une construction en tôle en nids d'abeilles ou des organes d'accrochage de préférence en forme de V, T, S, ou Y.
  6. Echangeur de chaleur à faisceau tubulaire selon l'une quelconque des revendications 3 à 5,
    caractérisé en ce que
    la masse de bourrage contient des fibres d'acier ondulées.
  7. Echangeur de chaleur à faisceau tubulaire selon l'une quelconque des revendications 3 à 6,
    caractérisé par
    une chambre d'entrée qui s'élargit à partir du diamètre de la conduite de transfert venant de l'installation thermique de craquage jusqu'au diamètre de la plaque à tubes du côté de l'entrée.
  8. Application d'une masse de bourrage à prise chimique pour revêtir les plaques de fond d'échangeurs de chaleur à faisceau tubulaire en aval d'installations thermiques de craquage selon la revendication 3.
EP96931808A 1995-09-20 1996-09-14 Echangeur de chaleur a faisceau tubulaire places en aval d'installations thermiques de craquage, procede de revetement d'une plaque a tubes et utilisation d'un pise refractaire Expired - Lifetime EP0851999B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19534823 1995-09-20
DE19534823A DE19534823C2 (de) 1995-09-20 1995-09-20 Rohrbündel-Wärmeübertrager
PCT/EP1996/004045 WO1997011330A1 (fr) 1995-09-20 1996-09-14 Echangeurs de chaleur a faisceau tubulaire places en aval d'installations thermiques de craquage

Publications (2)

Publication Number Publication Date
EP0851999A1 EP0851999A1 (fr) 1998-07-08
EP0851999B1 true EP0851999B1 (fr) 2001-06-20

Family

ID=7772623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96931808A Expired - Lifetime EP0851999B1 (fr) 1995-09-20 1996-09-14 Echangeur de chaleur a faisceau tubulaire places en aval d'installations thermiques de craquage, procede de revetement d'une plaque a tubes et utilisation d'un pise refractaire

Country Status (15)

Country Link
US (1) US6155337A (fr)
EP (1) EP0851999B1 (fr)
JP (1) JP3891589B2 (fr)
AT (1) ATE202415T1 (fr)
AU (1) AU700338B2 (fr)
CA (1) CA2230134C (fr)
CZ (1) CZ294937B6 (fr)
DE (3) DE19534823C2 (fr)
DK (1) DK0851999T3 (fr)
ES (1) ES2159042T3 (fr)
GR (1) GR3036096T3 (fr)
HU (1) HU226917B1 (fr)
PL (1) PL183641B1 (fr)
PT (1) PT851999E (fr)
WO (1) WO1997011330A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19962391A1 (de) * 1999-12-23 2001-06-28 Behr Industrietech Gmbh & Co Ladeluftkühler
DE10028568C1 (de) * 2000-06-09 2001-06-07 Uwe Schwerdtfeger Röhrchen-Wärmetauscher
DE102005032118A1 (de) * 2005-07-07 2007-01-11 Ruhr Oel Gmbh Rohrbündelwärmeübertrager mit verschleißbeständiger Rohrbodenauskleidung
DE102006055973A1 (de) * 2006-11-24 2008-05-29 Borsig Gmbh Wärmetauscher zur Kühlung von Spaltgas
US9575479B2 (en) * 2013-11-27 2017-02-21 General Electric Company System and method for sealing a syngas cooler
DE102017003380A1 (de) * 2017-04-06 2018-10-11 Linde Aktiengesellschaft Wärmetauscher, Verwendung eines Wärmetauschers und Verfahren zur Herstellung eines Wärmetauschers
JP7738496B2 (ja) * 2022-02-04 2025-09-12 三菱重工業株式会社 熱交換器

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1894956A (en) * 1929-01-16 1933-01-24 Babcock & Wilcox Co Air heater
US3017696A (en) * 1957-03-11 1962-01-23 Griscom Russell Co Corrosion-resistant surface
GB1175157A (en) * 1966-03-19 1969-12-23 Ernst Kreiselmaier Improvements in or relating to Steam Condensers
GB1195309A (en) * 1967-11-29 1970-06-17 Idemitsu Petrochemical Co Quenching Apparatus for Use with Thermal Cracking Systems
US3751295A (en) * 1970-11-05 1973-08-07 Atomic Energy Commission Plasma arc sprayed modified alumina high emittance coatings for noble metals
DE2160372C3 (de) * 1971-12-02 1975-07-17 1000 Berlin Vorrichtung zur gleichmäßigen Durchströmung eines Rohrbündelwärmetauschers
DE2458308A1 (de) * 1974-12-10 1976-06-24 Siegener Ag Geisweid Gaskuehler zum kuehlen von spaltgas oder synthesegas
US3990862A (en) * 1975-01-31 1976-11-09 The Gates Rubber Company Liquid heat exchanger interface and method
US4124068A (en) * 1977-05-16 1978-11-07 Uop Inc. Heat exchange tube for fluidized bed reactor
US4479337A (en) * 1980-04-14 1984-10-30 Standard Oil Company (Indiana) Refractory anchor
JPS58205084A (ja) * 1982-05-26 1983-11-29 Hitachi Ltd 薄膜蒸発式熱交換器
IT1209532B (it) * 1984-04-20 1989-08-30 Snam Progetti Processo per la sintesi di urea e materiale utilizzato nello stesso.
DE3531150A1 (de) * 1985-08-31 1987-03-05 Kreiselmaier Ernst Gmbh Co Verfahren zur beschichtung von rohrboeden od.dgl. von kondensatoren, kuehlern, waermetauschern od.dgl. mit einem korrosionsschutzmittel
US4753849A (en) * 1986-07-02 1988-06-28 Carrier Corporation Porous coating for enhanced tubes
DE3640970A1 (de) * 1986-11-29 1988-06-09 Gutehoffnungshuette Man Rohrbuendelwaermetauscher
DE3842727A1 (de) * 1988-12-19 1990-06-21 Borsig Gmbh Waermetauscher insbesondere zum kuehlen von spaltgas
US5141049A (en) * 1990-08-09 1992-08-25 The Badger Company, Inc. Treatment of heat exchangers to reduce corrosion and by-product reactions
JPH0570248A (ja) * 1991-04-02 1993-03-23 Harima Ceramic Co Ltd 高炉出銑樋用不定形耐火物
DE59200074D1 (de) * 1992-04-29 1994-03-31 Borsig Babcock Ag Wärmetauscher zum Kühlen von in einer Kohlevergasungsanlage erzeugtem Synthesegas.
DE4404068C1 (de) * 1994-02-09 1995-08-17 Wolfgang Engelhardt Wärmetauscher
US5518066A (en) * 1994-05-27 1996-05-21 Connell Limited Partnership Heat exchanger
US5699852A (en) * 1996-08-22 1997-12-23 Korea Institute Of Energy Research Heat exchanger having a resin-coated pipe

Also Published As

Publication number Publication date
DE19534823C2 (de) 2002-08-22
EP0851999A1 (fr) 1998-07-08
DK0851999T3 (da) 2001-09-03
HU226917B1 (en) 2010-03-01
US6155337A (en) 2000-12-05
CZ86698A3 (cs) 1999-08-11
HUP9903453A3 (en) 2001-10-29
CZ294937B6 (cs) 2005-04-13
CA2230134A1 (fr) 1997-03-27
DE29515406U1 (de) 1997-01-30
ES2159042T3 (es) 2001-09-16
PL326272A1 (en) 1998-08-31
PL183641B1 (pl) 2002-06-28
WO1997011330A1 (fr) 1997-03-27
PT851999E (pt) 2001-09-28
ATE202415T1 (de) 2001-07-15
JP3891589B2 (ja) 2007-03-14
JPH11512514A (ja) 1999-10-26
DE59607138D1 (de) 2001-07-26
AU7085596A (en) 1997-04-09
HUP9903453A2 (hu) 2000-04-28
CA2230134C (fr) 2008-03-25
AU700338B2 (en) 1998-12-24
DE19534823A1 (de) 1997-03-27
GR3036096T3 (en) 2001-09-28

Similar Documents

Publication Publication Date Title
EP0545281B1 (fr) Brûleur pour la production de gaz de synthèse
DE2925395C2 (de) Ofendecke für einen elektrothermischen Reduktionsofen
DE2259553B2 (de) Zwischenbehälter für Stranggießanlagen
EP1902267A1 (fr) Échangeur de chaleur à faisceau tubulaire, pourvu d'une plaque tubulaire à revêtement résistant à l'usure
EP0851999B1 (fr) Echangeur de chaleur a faisceau tubulaire places en aval d'installations thermiques de craquage, procede de revetement d'une plaque a tubes et utilisation d'un pise refractaire
EP2024075B1 (fr) Conduit collecteur pour fours tubulaires fendus
DE3009851A1 (de) Anlage mit einem reaktorbehaelter, insbesondere zur vergasung fossiler brennstoffe
DE2559151A1 (de) Waermedaemmender ueberzug fuer metallurgische behaelter, und mit einem solchen versehene behaelter
DE2949998A1 (de) Verfahren zum herstellen einer bausteineinheit fuer die wand eines metallurgischen ofens
DE2552637A1 (de) Plattenkuehler fuer schachtofen, insbesondere hochofen, und verfahren zur dessen ausfuehrung
DE69012299T2 (de) Schutzschicht für metallurgische Ofenbeschichtungen und dergleichen.
EP1420003B1 (fr) Mélange refractaire servant à des réparations
DE1508235C3 (de) Verfahren zur Erhöhung der Lebens dauer des Futters basisch ausgekleideter metallurgischer Ofen
EP0956158A1 (fr) Revetement a action catalytique avec promoteur d'adhesion, et procede d'application dudit revetement
DE3309695C2 (de) Schachtkühler zum Trockenlöschen von Koks
DE102006052937A1 (de) Sammelleitung für Röhrenspaltöfen
DE1948886A1 (de) Trichterrohr und Rohrsteine fuer die Herstellung von Eisen- und Stahlbloecken durch steigenden Guss
DE2333185B2 (de) Verfahren zur Herstellung von Olefinen durch thermische Spaltung von Kohlenwasserstoffen
CH649520A5 (de) Basisches feuerfest-zementmaterial.
AT384208B (de) Verfahren zur herstellung einer hydraulischen feuerfest-zement-zusammensetzung
WO1997025145A1 (fr) Revetement a action catalytique avec support auxiliaire et procede d'application dudit revetement
DE678325C (de) Reaktionsgefaess zur Druckwaermespaltung oder Druckhydrierung von Kohlenwasserstoffoelen
DE202007007491U1 (de) Abkleidung für den Rohrboden eines Druckbehälters
DE29911973U1 (de) Brennerlanze für eine Zementofenanlage
DE29610883U1 (de) Wärmetauscher

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980317

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 19990423

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RTI1 Title (correction)

Free format text: TUBULAR HEAT EXCHANGER FOR CONNECTION DOWNSTREAM OF A THERMAL-CRACKING INSTALLATION, PROCESS FOR COATING A TUBEPLATE AND UTILISATION OF A REFRACTORY MASS

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

REF Corresponds to:

Ref document number: 202415

Country of ref document: AT

Date of ref document: 20010715

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: TROESCH SCHEIDEGGER WERNER AG

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010621

ET Fr: translation filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 59607138

Country of ref document: DE

Date of ref document: 20010726

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2159042

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20010626

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: BORSIG GMBH

Effective date: 20020320

NLR1 Nl: opposition has been filed with the epo

Opponent name: BORSIG GMBH

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBO Opposition rejected

Free format text: ORIGINAL CODE: EPIDOS REJO

RTI2 Title (correction)

Free format text: TUBULAR HEAT EXCHANGER FOR CONNECTION DOWNSTREAM OF A THERMAL-CRACKING INSTALLATION, PROCESS FOR COATING A TUBEPLATE AND

RTI2 Title (correction)

Free format text: TUBULAR HEAT EXCHANGER FOR CONNECTION DOWNSTREAM OF A THERMAL-CRACKING INSTALLATION, PROCESS FOR COATING A TUBEPLATE AND

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20030605

NLR2 Nl: decision of opposition

Effective date: 20030605

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20100609

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: MC

Payment date: 20100721

Year of fee payment: 15

Ref country code: IE

Payment date: 20100930

Year of fee payment: 15

Ref country code: ES

Payment date: 20100702

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20100927

Year of fee payment: 15

Ref country code: LU

Payment date: 20100922

Year of fee payment: 15

Ref country code: FI

Payment date: 20100917

Year of fee payment: 15

Ref country code: AT

Payment date: 20100713

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20100628

Year of fee payment: 15

Ref country code: GB

Payment date: 20100721

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20100929

Year of fee payment: 15

Ref country code: FR

Payment date: 20101015

Year of fee payment: 15

Ref country code: DK

Payment date: 20100909

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100802

Year of fee payment: 15

Ref country code: CH

Payment date: 20101011

Year of fee payment: 15

Ref country code: BE

Payment date: 20100727

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20100929

Year of fee payment: 15

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20120314

BERE Be: lapsed

Owner name: *RUHR OEL G.M.B.H.

Effective date: 20110930

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20120401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

Ref country code: DK

Ref legal event code: EBP

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20110914

REG Reference to a national code

Ref country code: GR

Ref legal event code: ML

Ref document number: 20010400937

Country of ref document: GR

Effective date: 20120403

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120314

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110914

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110914

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59607138

Country of ref document: DE

Effective date: 20120403

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110914

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120403

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120401

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110914

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120403

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110930

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 202415

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110915

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20130530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110915