EP1618336B1 - Bruleur poreux comprenant un corps poreux en carbure de silicium - Google Patents

Bruleur poreux comprenant un corps poreux en carbure de silicium Download PDF

Info

Publication number
EP1618336B1
EP1618336B1 EP04727529A EP04727529A EP1618336B1 EP 1618336 B1 EP1618336 B1 EP 1618336B1 EP 04727529 A EP04727529 A EP 04727529A EP 04727529 A EP04727529 A EP 04727529A EP 1618336 B1 EP1618336 B1 EP 1618336B1
Authority
EP
European Patent Office
Prior art keywords
fabric
burner
porous
porous burner
pore
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
EP04727529A
Other languages
German (de)
English (en)
Other versions
EP1618336A1 (fr
Inventor
Michael Hoetger
Walter Thiele
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.)
SGL Carbon SE
Original Assignee
SGL Carbon SE
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
Priority claimed from DE102004006824A external-priority patent/DE102004006824B4/de
Application filed by SGL Carbon SE filed Critical SGL Carbon SE
Publication of EP1618336A1 publication Critical patent/EP1618336A1/fr
Application granted granted Critical
Publication of EP1618336B1 publication Critical patent/EP1618336B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F23C99/006—Flameless combustion stabilised within a bed of porous heat-resistant material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12—Radiant burners
    • F23D14/14—Radiant burners using screens or perforated plates
    • F23D14/145—Radiant burners using screens or perforated plates combustion being stabilised at a screen or a perforated plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/104—Grids, e.g. honeycomb grids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/10—Burner material specifications ceramic
    • F23D2212/105—Particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14582—Special features of gas burners with outlets consisting of layers of spherical particles

Definitions

  • the invention relates to a pore burner for burning a fuel-air mixture for producing a hot flue gas, comprising a housing in which a pore material of porous, high temperature resistant silicon carbide (SiC) is provided for combustion.
  • SiC silicon carbide
  • Such a pore burner is used, for example, to pressurize a steam superheater with a hot flue gas stream.
  • the steam generated in the steam superheater has high temperatures and is under high pressure.
  • the stored energy in the steam can then be harnessed in the form of mechanical or electrical energy, for. B. by relaxation in an expansion machine to drive a generator.
  • the hotter the steam and the higher the pressure the better the efficiency of such machines. Accordingly, it is necessary that the flue gas flow has the highest possible temperatures. Typical temperatures are in the range between 850 ° C and 1400 ° C.
  • the pore burners for generating a hot flue gas stream differ in particular from a pure radiant burner, in which only the radiant heat of the burner is used and the resulting flue gas is withdrawn as a by-product via a chimney or an exhaust pipe.
  • Such radiant burners are, for example, artificial log fires or radiant burners for drying varnishes.
  • the radiant heat of a pore burner can be used, the essential However, the proportion of energy transferred to the steam generator comes from the flue gas.
  • a pore burner for burning a fuel / oxidizer mixture.
  • the pore burner is filled with spherical packing.
  • the size of the resulting pores is determined by the size of the packing.
  • the known pore burner is designed so that an excessively high temperature in the reaction space is avoided by an additional cooling gas.
  • a pore burner containing porous material having spatially contiguous cavities formed by a package of refractory wire, foil or sheet material is known. In these cavities, a defined flame zone is formed. The material is not suitable for high temperatures.
  • a highly porous burner mat which consists of metallic or ceramic fibers which are welded together in irregular structures.
  • the mat is provided with holes through which the gas flows. It creates areas of different flow velocities, through which an irregular flame carpet is created, which stands out from the surface of the mat.
  • US 4,895,513 discloses a pore burner in which the pore body consists of a felt of silicon carbide fibers.
  • the object is achieved in that the carbon fabric has an ordered, regular structure.
  • the invention is based on the finding that the properties of a pore burner can be influenced if the pore structure can be produced in a targeted manner. Interweaving the hard and brittle material silicon carbide is not possible. However, by siliciding a suitably shaped carbon fabric, it is possible to create a suitably designed SiC fabric structure.
  • the siliconized tissue is inexpensive to produce. It withstands mechanical and thermal loads very well.
  • the mesh size and planar shape of the fabric is also individually customizable as its size and outline, so that when using such materials as a porous body for pore burner, an optimization of the burner properties is possible.
  • the silicon carbide fabric has a shape deviating from a plane surface. Then, a plurality of tissue pieces can be stacked on each other. In this way, without additional spacers or the like, a three-dimensional arrangement is provided, with which the pore burner can be filled.
  • the tissue can be wavy shaped. However, other forms are possible, such as a cross-section sawtooth or box-shaped profile. In order to obtain a small pore size, then on the one hand, the tissue parameters can be kept small and on the other hand, the waveform of a plurality of small waves are assembled.
  • the tissue may consist of completely silicided fibers. However, for some applications, it may also be useful for the tissue to be partially silicided and to contain a core of pure carbon.
  • the ordered structures are designed so that zones of different porosity form.
  • the porous body of the burner may be formed in two or more zones of different pore size.
  • the inlet-side part of the porous body then has a smaller pore size than the outlet-side pore body.
  • the flame forms in the coarse-pored zone, while in the fine-pored zone, a mixture and preheating of the fuel-air mixture take place.
  • the pore size can by the selected tissues and their arrangement, such as. B. stacking, be designed particularly well.
  • the fine-pored part is made of conventional pore-forming materials, while the coarsely porous part consists of siliconized carbon fabric.
  • the material of the fine-pored part is preferably poorly conductive, so that heat transfer from the combustion zone into the premixing zone is avoided. In this way, a flashback of the flames is prevented.
  • the axes of curvature of the waves of a piece of fabric may lie in one plane and the pieces of fabric may be arranged one above the other such that the projections of the wave normals are perpendicular to one another on such a plane defined by the axes of curvature.
  • the wave normal then each form an angle of about 45 ° to the flow direction of the flue gas.
  • a wave normal is here the vertical on a wavefront. It lies in the plane defined by the axes of curvature.
  • the pore structure is formed from stacked wavy SiC mats. The individual levels are arranged at an angle of about 90 ° rotated against each other. This arrangement is particularly favorable for the combustion behavior of the burner.
  • the structure thus flowed through is called a static mixer.
  • the fuel and the combustion air are mixed together so that the fuel is particularly low in emissions and completely burned.
  • the housing of the burner is provided with an insulating layer. This avoids undesirable convective heat transfer through the housing into the periphery of the burner.
  • the housing wall can be traversed by a cooling medium, which is either discharged separately into the environment or mixed with the hot flue gas in the outlet of the burner.
  • a pore burner 10 is shown.
  • the pore burner consists of a housing 12, in which a fuel gas-air mixture is introduced.
  • the flow direction of the inflowing gas is shown by the arrows 14.
  • a plurality of pieces of fabric 16 are stacked on each other.
  • the pores are smaller and in a second zone 20, the pores are larger.
  • the porous material of the first zone 18 is not shown.
  • oxidation takes place in the pores without proper flame formation.
  • This creates hot Flue gas which is in Fig. 1 is represented by arrows 22.
  • the flue gas is used to heat a steam generator. It is possible to arrange the steam generator within the radiation field of the porous burner 10, so that not only the heat transmitted through the flue gas, but also the radiant heat is used.
  • the tissue pieces 16 are in Fig. 2 again shown in detail. They consist of a substantially rectangular, net-like fabric. A plurality of these pieces of fabric 16 are stacked. Each piece of fabric 16 is curved in a wave shape about a curvature axis 37. The tissue pieces are stacked on each other so that the mountains 24 and valleys 26 of the curvatures are always alternately offset by 90 degrees. This is in Fig. 3 seen. For example, the fabric piece 30 is offset by 90 degrees on the fabric piece 28.
  • the pore burner is completely filled with the tissue pieces 16. This creates a pore structure that allows a particularly good, uniform flame development. The pore body is traversed by the fuel / air mixture parallel to the planes of the individual fabric layers and in the direction of the bisector 34 of the angle of rotation between the wave normal 35 and the wave normal 39 of the layers.
  • the pore burner 10 has a rectangular cross section and is therefore also filled with rectangular pieces of fabric 16. If the pore burner 10 has a different shaped cross-section, of course, the shape of the tissue pieces is adjusted accordingly.
  • the housing 12 of the pore burner is flowed through by a coolant.
  • the cooling air is in this case separately in a cooling channel 38 ( Figure 4 ) of the housing 12 and is mixed at the outlet 40 with the flue gas.
  • the size of the tissue pockets 32, the radii of curvature of the troughs and mountains and the number of curvatures per piece of tissue can influence the pore size.
  • the pieces of tissue are made of silicon carbide.
  • Silicon carbide is a carbide ceramic material and as such is not weavable.
  • a carbon fabric is used, which is brought into the appropriate form and then siliconized.
  • Different processes are suitable for siliciding.
  • molten silicon infiltrates a porous substrate of carbon fiber reinforced carbon (C / C) and reacts directly with the carbon of the matrix to form SiC.
  • C / C carbon fiber reinforced carbon
  • the silicated tissue pieces 16 are stiff after this process and can be used in the burner without further change in shape.
  • the material is high temperature resistant.
  • the production process for planar SiC structures is inexpensive compared to spongy ceramic bodies and the mechanical and thermal capacity is much higher than ceramic sponges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Woven Fabrics (AREA)
  • Ceramic Products (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

L'invention concerne un brûleur poreux (10) destiné à la combustion d'un mélange combustible-air pour produire un gaz de fumée chaud (22). Ce brûleur poreux (10) comprend un boîtier (12) dans lequel est placée une matière poreuse (16) constituée de carbure de silicium (SiC) poreux résistant aux températures élevées, cette matière servant à la combustion. L'invention se caractérise en ce que le corps poreux comprend un tissu de carbone siliconé présentant une structure ordonnée et régulière. Le tissu (16) en carbure de silicium peut présenter une forme non plane, par exemple une forme ondulée, une pluralité de morceaux de tissu (28, 30) pouvant être superposés.

Claims (8)

  1. Brûleur poreux (10) destiné à brûler un mélange de combustible et d'air en vue de produire des gaz de combustion chauds (22) et contenant un boîtier (12) dans lequel un matériau poreux (16) constitué de carbure de silicium (SiC) poreux résistant aux hautes températures est prévu en vue de la combustion, le corps poreux comprenant un tissu de carbone silicié, caractérisé en ce que
    le tissu en carbone présente une structure ordonnée et régulière.
  2. Brûleur poreux (10) selon la revendication 1, caractérisé en ce que la forme du tissu (16) en carbure de silicium s'écarte d'une forme plane et en ce que plusieurs pièces tissées (28, 30) sont stratifiées les unes sur les autres.
  3. Brûleur poreux (10) selon la revendication 2, caractérisé en ce que le tissu (16) reçoit une forme ondulée.
  4. Brûleur poreux (10) selon l'une des revendications précédentes, caractérisé en ce que le tissu (16) est constitué de fibres complètement siliciées.
  5. Brûleur poreux (10) selon l'une des revendications 1 à 3, caractérisé en ce que le tissu est partiellement silicié et contient une âme en carbone pur.
  6. Brûleur poreux (10) selon l'une des revendications précédentes, caractérisé en ce que les structures ordonnées sont conçues de manière à former des zones de porosités différentes.
  7. Brûleur poreux (10) selon l'une des revendications 3 à 6, caractérisé en ce que les axes de courbure des ondulations d'une pièce tissée sont situés dans un plan et en ce que les pièces tissées sont disposées les unes au-dessus des autres de telle sorte que les projections des normales aux ondulations s'étendent perpendiculairement les unes aux autres dans le plan défini par les axes de courbure.
  8. Brûleur poreux (10) selon la revendication 7, caractérisé en ce que les normales aux ondulations forment chacune un angle d'environ 45° par rapport à la direction d'écoulement des gaz de combustion.
EP04727529A 2003-04-18 2004-04-15 Bruleur poreux comprenant un corps poreux en carbure de silicium Expired - Lifetime EP1618336B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10317857 2003-04-18
DE102004006824A DE102004006824B4 (de) 2003-04-18 2004-02-11 Porenbrenner mit Siliziumkarbid-Porenkörper
PCT/EP2004/003968 WO2004092646A1 (fr) 2003-04-16 2004-04-15 Bruleur poreux comprenant un corps poreux en carbure de silicium

Publications (2)

Publication Number Publication Date
EP1618336A1 EP1618336A1 (fr) 2006-01-25
EP1618336B1 true EP1618336B1 (fr) 2011-06-29

Family

ID=33300846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04727529A Expired - Lifetime EP1618336B1 (fr) 2003-04-18 2004-04-15 Bruleur poreux comprenant un corps poreux en carbure de silicium

Country Status (4)

Country Link
US (1) US20060035190A1 (fr)
EP (1) EP1618336B1 (fr)
JP (1) JP2006523815A (fr)
WO (1) WO2004092646A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014216430A1 (de) * 2014-08-19 2016-02-25 Schunk Kohlenstofftechnik Gmbh Porenkörper, insbesondere zur Verwendung als Verbrennungszone eines Porenbrenners, sowie Porenbrenner mit einem derartigen Porenkörper

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005044494B3 (de) * 2005-09-16 2007-03-08 Wenzel, Lothar Vorrichtung zur Beseitigung von schädlichen Bestandteilen aus Abgasen von Brennkraftmaschinen
US8357327B2 (en) 2006-05-16 2013-01-22 Sms Siemag Aktiengesellschaft Heating device for preheating a liquid-metal transfer container
TWI450439B (zh) 2009-10-22 2014-08-21 Atomic Energy Council 應用於高溫燃料電池之多孔性介質燃燒器
CN102287819B (zh) * 2011-07-01 2012-12-12 中国计量学院 一种燃用低热值气体燃料的多孔介质燃烧器
EP3739263A1 (fr) 2013-02-14 2020-11-18 ClearSign Technologies Corporation Système de combustion de carburant comportant un support de réaction perforé
US10571124B2 (en) 2013-02-14 2020-02-25 Clearsign Combustion Corporation Selectable dilution low NOx burner
US20160123580A1 (en) * 2013-07-02 2016-05-05 Bekaert Combustion Technology B.V. Gas premix burner
CN109328283A (zh) * 2016-03-10 2019-02-12 塞拉斯热能技术有限责任公司 高强度燃气红外发射体
KR101688894B1 (ko) * 2016-08-08 2016-12-23 주식회사 지엔티엔에스 고온 연소촉매를 이용한 버너
CN110425536B (zh) * 2019-08-06 2020-11-10 东北大学 一种角型多孔介质燃烧器

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155142A (en) * 1961-02-13 1964-11-03 Minnesota Mining & Mfg Radiant gas burner
US3726633A (en) * 1970-11-30 1973-04-10 Thermo Electron Corp Low pollutant-high thermal efficiency burner
JPS62216981A (ja) * 1986-03-15 1987-09-24 イビデン株式会社 炭化珪素質複合材料の製造方法
US5633081A (en) * 1986-03-24 1997-05-27 Ensci Inc. Coated porous substrates
US4895513A (en) * 1987-08-06 1990-01-23 Br Laboratories, Inc. Heat resistant combustion element
US5026273A (en) * 1988-07-15 1991-06-25 W. R. Grace & Co.-Conn. High temperature combuster
US5346389A (en) * 1989-02-24 1994-09-13 W. R. Grace & Co.-Conn. Combustion apparatus for high-temperature environment
DE29611022U1 (de) * 1995-06-22 1996-08-14 Vaillant Joh Gmbh & Co Vollvormischender atmosphärischer Strahlungsbrenner
US5720933A (en) * 1996-03-11 1998-02-24 Srinivasan; Makuteswara Process for preparing ceramic fibers
DE19621638C2 (de) * 1996-05-30 2002-06-27 Fraunhofer Ges Forschung Offenzellige Schaumkeramik mit hoher Festigkeit und Verfahren zu deren Herstellung
US5989013A (en) * 1997-01-28 1999-11-23 Alliedsignal Composites Inc. Reverberatory screen for a radiant burner
US5890886A (en) * 1997-07-21 1999-04-06 Sulzer Chemtech Ag Burner for heating systems
JP3466103B2 (ja) * 1999-03-16 2003-11-10 松下電器産業株式会社 触媒燃焼装置
DE10114903A1 (de) * 2001-03-26 2002-10-17 Invent Gmbh Entwicklung Neuer Technologien Brenner für ein Gas/Luft-Gemisch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014216430A1 (de) * 2014-08-19 2016-02-25 Schunk Kohlenstofftechnik Gmbh Porenkörper, insbesondere zur Verwendung als Verbrennungszone eines Porenbrenners, sowie Porenbrenner mit einem derartigen Porenkörper

Also Published As

Publication number Publication date
EP1618336A1 (fr) 2006-01-25
US20060035190A1 (en) 2006-02-16
JP2006523815A (ja) 2006-10-19
WO2004092646A1 (fr) 2004-10-28

Similar Documents

Publication Publication Date Title
EP1618336B1 (fr) Bruleur poreux comprenant un corps poreux en carbure de silicium
EP0070905A1 (fr) Plaque ceramique de bruleur et procede de fabrication de celle-ci
EP2641022B1 (fr) Procédé de combustion et membrane avec base de flammes froide
DE102005038395A1 (de) Brennkammerkühlung mit geneigten segmentierten Flächen
DE2740581A1 (de) Fliessbett
DE102004006824B4 (de) Porenbrenner mit Siliziumkarbid-Porenkörper
DE10233340B4 (de) Porenbrenner sowie Gargerät, enthaltend mindestens einen Porenbrenner
DE3026324C2 (de) Ofen für einen Betrieb mit gesteuerter Atmosphäre
DE60117217T2 (de) Reformierverfahren mit seitenerhitztem Brennersystem mit verstellbarem Wärmefluss
DE3806044A1 (de) Feuerraumwand
DE19543430C2 (de) Zweischichtstein und Verfahren zu seiner Herstellung
EP1235642B1 (fr) Reacteur de reformage autothermique
DE2940230A1 (de) Verfahren zur verbesserung des waermedaemmvermoegens von daemmstoffen, die ueberwiegend oder ausschliesslich aus anorganischen materialien bestehen
DE2929718B1 (de) Winderhitzer mit innenliegendem Brennschacht
EP0107243B1 (fr) Empilage horizontal pour chambres d'un four à régénération
DE3139749C2 (de) Vorrichtung mit einer Hochtemperatur-Verbrennungszone und mit einer Anzahl von Speicher-Wärmetauschern
EP1508761A1 (fr) Pierre servant de bouclier thermique pour garnir une paroi de chambre de combustion, chambre de combustion et turbine a gaz correspondantes
EP1701092A1 (fr) Plaque de brûleur de brûleur radiant
DE934228C (de) Feuerfester Regenerativofen, insbesondere zur Erzeugung von Heizgas
WO2009087126A2 (fr) Corps thermorayonnant en céramique, sous forme de plaque, d'un émetteur plan infrarouge
DE3609893A1 (de) Winderhitzer mit innenliegender brennkammer fuer einen hochofen
DE102019209126A1 (de) Temperaturwechselbeständiges Bauelement für Anwendungen mit hoher thermomechanischer Belastung sowie Verfahren zu seiner Herstellung
EP4334644A1 (fr) Système de chambre de combustion à combustion d'hydrogène, procédé et installation
DE7627081U1 (de) Verbindungselement aus feuerfesten werkstoffen
DE202024100516U1 (de) Gasdurchlässiges 3D-Wärmeisolationsprodukt aus Basaltfasern

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: 20051116

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SGL CARBON SE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502004012652

Country of ref document: DE

Effective date: 20110825

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110629

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110930

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111031

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

26N No opposition filed

Effective date: 20120330

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502004012652

Country of ref document: DE

Effective date: 20120330

BERE Be: lapsed

Owner name: SGL CARBON SE

Effective date: 20120430

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: 20120430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004012652

Country of ref document: DE

Owner name: SGL CARBON SE, DE

Free format text: FORMER OWNER: SGL CARBON SE, 65203 WIESBADEN, DE

Effective date: 20121022

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004012652

Country of ref document: DE

Owner name: SGL CARBON SE, DE

Free format text: FORMER OWNER: SGL CARBON AG, 65203 WIESBADEN, DE

Effective date: 20110704

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

Effective date: 20120415

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20121228

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

Ref country code: LI

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

Effective date: 20120430

Ref country code: CH

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

Effective date: 20120430

Ref country code: GB

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

Effective date: 20120415

Ref country code: BE

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

Effective date: 20120430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004012652

Country of ref document: DE

Effective date: 20121101

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

Ref country code: FR

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

Effective date: 20120430

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111010

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 514902

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120415

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

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110929

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: 20120415

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110629

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: 20120415

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040415

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121101