EP0242504A2 - Installation pour la gazéification sous haute pression de combustibles finement divisés, en particulier solides - Google Patents

Installation pour la gazéification sous haute pression de combustibles finement divisés, en particulier solides Download PDF

Info

Publication number
EP0242504A2
EP0242504A2 EP87100840A EP87100840A EP0242504A2 EP 0242504 A2 EP0242504 A2 EP 0242504A2 EP 87100840 A EP87100840 A EP 87100840A EP 87100840 A EP87100840 A EP 87100840A EP 0242504 A2 EP0242504 A2 EP 0242504A2
Authority
EP
European Patent Office
Prior art keywords
niche
wall construction
collecting space
passage point
tube wall
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
EP87100840A
Other languages
German (de)
English (en)
Other versions
EP0242504A3 (en
EP0242504B1 (fr
Inventor
Klaus Dipl. Ing. Köhnen
Hans Ing. Grad. Niermann
Hans Christoph Dr. Dipl. Ing. Pohl
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.)
Krupp Koppers GmbH
Original Assignee
Krupp Koppers 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 Krupp Koppers GmbH filed Critical Krupp Koppers GmbH
Publication of EP0242504A2 publication Critical patent/EP0242504A2/fr
Publication of EP0242504A3 publication Critical patent/EP0242504A3/de
Application granted granted Critical
Publication of EP0242504B1 publication Critical patent/EP0242504B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/74—Construction of shells or jackets
    • C10J3/76—Water jackets; Steam boiler-jackets
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/12—Heating the gasifier
    • C10J2300/1223—Heating the gasifier by burners

Definitions

  • the invention relates to a device for the gasification of finely divided, in particular solid fuels under increased pressure, consisting of a gas collection chamber with a gas outlet upwards and a slag outlet downwards, one or more combustion chambers designed as niches being attached to the side of the gas collection chamber and gas collection chamber and niches coolant-loaded pipe wall structures are limited.
  • gas plenum and niches from coolant-loaded pipe wall constructions is known, for example, from DE-PS 2o 38 445. It is also known to connect the niches to the gas plenum either inseparably (DE-PS 968 423) or else when the gasification device is provided with a refractory lining to provide a detachable connection (DE-PS 1 o76 868). Finally, it is also known to introduce the tube wall constructions of the gas collecting space and niches for pressure equalization into a common pressure vessel during gasification under increased pressure, which can be up to about 100 bar (DE-AS 24 25 962). The space between the pressure vessel and the pipe wall construction can be filled with insulating material and inert gas can be applied.
  • the invention is therefore based on the object of designing the gasification device of the type described at the outset in such a way that adaptation to the respective operating conditions can be carried out with as little time and investment as possible.
  • the depth and / or the width of each niche and / or the angle of inclination of the niche shell are variable.
  • the depth of the niche can be varied by inserting a vertical pipe wall at different distances from the wall of the gas collecting space.
  • the angle of inclination of the niche jacket can be changed by inserting jackets provided with correspondingly differently inclined boundaries into the wall of the gas collecting space.
  • the niche jacket can be formed from the correspondingly bent pipes of the pipe wall construction of the gas collection space, i.e. it is then integrated into the pipe wall construction of the gas collecting space and thus part of the cooling system of this pipe wall construction.
  • only the depth of the niche is of course variable.
  • the tube wall construction of the niche jacket can be detached from the tube wall construction of the gas collecting space and has a cooling system which is independent thereof.
  • the separate niche jacket can be formed from tubes welded together, which are arranged in a spiral or in parallel ring layers. However, the tubes can also be guided radially or along the surface line.
  • a passage point with a facility for the tube wall construction of the niche jacket is provided in the tube wall construction of the gas collecting space.
  • the passage point can be formed by bending the tubes of the tube wall construction of the gas collecting space to form a tube collar. Instead, in the area of the passage point, the bent pipes of the pipe wall construction of the gas collection space can open into a collector pipe in front of the passage point. It is also possible in the area of the passage point to have the pipes of the pipe wall construction of the gas collecting space open into a collector pipe which forms the circumference of the passage point. Close Lich, the pipes of the pipe wall construction of the gas collecting space can also lead to angle fittings in the area of the passage point.
  • the invention further provides that sealing systems for sealing the niche shell from the gas collecting space are arranged over the circumference of the passage point. Training and type of arrangement of the sealing system can be very different.
  • the passage point can be closed by a cover plate provided with cooling tubes.
  • a cover plate provided with cooling tubes.
  • This protective shield is preferably formed by tube pieces protruding from the cover plate, which are expediently covered with a layer of refractory material.
  • the cylindrical jacket of the gas collecting space is penetrated at an angle of 90.degree.
  • the truncated cone-shaped niche By the truncated cone with the depth H and with the radii R1 and R2 is formed by bending out of the tubes of the tube wall construction of the gas collecting space.
  • the individual tubes of the cylindrical tube wall construction form the outer surface of the niche truncated cone such that, for example, the tube 1 a leaves the vertically downward alignment of the cylindrical tube wall construction at the level of the penetration point of the truncated cone and cylinder, at an angle turns according to the slope of the truncated cone, runs along the surface line of the truncated cone until the radius R2 is reached, on the upper smaller Circle of the truncated cone forms half the circumference ⁇ ⁇ R2, then turns back into the surface line, this runs along to the lower penetration point, in order to then merge into the original, vertical, downward alignment of the cylindrical tube wall construction.
  • the tube 1a forms part of the outer shape of the conical niche.
  • the tubes 1b-1i also run in a corresponding manner and form the surface of the jacket of one niche half, while the other half is formed by the same number of tubes, not shown in FIGS. 1 and 1a.
  • the casing pipes of the cylindrical pipe wall construction and that of the truncated cone-shaped niche thus represent a uniform pipe system.
  • Each individual pipe forms part of the niche, all pipes form a tight fit, the entire niche is tightly welded.
  • the two halves of the niche are also welded together gas-tight.
  • the depth of the niche can also be extended by welding in webs, not shown, between the individual tubes to a certain extent, due to thermal reasons, as well as by using separately fed tube windings, which are also not shown.
  • the niche constructed from pipe loops, as described above, is covered by a cover plate, not shown in FIGS. 1 and 1a, on which the burner units for gasifying the fuel are attached.
  • Fig. 2 shows a proposal for three different uses.
  • the niche is formed from a multiplicity of tubes, of which only the tube 1a is indicated here. 2 with a layer of refractory material applied to protect the pipes is designated.
  • the burner 3 protrudes into the recess, which is closed off by a vertical tube wall 4 which is likewise protected by applied refractory material.
  • the water required for cooling the pipe wall 4 flows through collector pipes 5 via elbows 6 to and from.
  • the niche insert with the pipe wall 4 and the protection made of refractory material, the burner 3 and the collector pipes 5 detachable from the water supply and disposal are removed and replaced by a larger niche insert with a likewise protected pipe wall, which closes the niche at a distance x from the previous pipe wall 4, for example. If, on the other hand, the niche is to be enlarged, then so a correspondingly smaller niche insert is selected, which closes the niche, for example, at a distance Y from the previous position of the tube wall 4.
  • any advantageous niche size can be selected depending on the operating parameters by changing the depth H of the niche (FIG. 1).
  • the niche with the reaction space for the gasification is closed off by a cover plate 20 to the outside space, where ambient pressure prevails in comparison to the increased gasification pressure.
  • the cover plate which is not shown in FIGS. 1 and 2 for simplification, forms a detachable unit with the burner 3 pushed into it. Since it is not itself cooled, it has, as heat protection, the tube wall 4 with protection made of refractory material, which at the same time forms the niche closure according to the explanations in FIG. 2.
  • the pipe 5 cooling water flows in and out through the pipes 5.
  • a sealing system 7 is provided on the cover plate, which consists of two welded-on, concentric rings, the space between which is filled with heat-resistant, elastic sealing compound. Gas tightness is achieved by pressing the plate with the burner 3 against the pipe 1a, which is pressed into the sealing compound. Should the reaction space can be changed for the gasification, can be proceeded according to the proposal of FIG. 2.
  • Determining the construction of the niche jacket according to FIGS. 1-3 can be disadvantageous for the reasons given when building a gasification plant for later operation.
  • the invention therefore also provides for a departure from the niche shown in FIGS. 1-3 and integrated into the tube wall construction of the gas collecting space. It is based on a cylindrical tube wall construction, in which only passage openings are provided, in which niches of different geometric shapes can be used. In this case, not only is the depth of the niche variable, as in the embodiment according to FIGS. 1-3, but also its width and the angle of inclination of the niche shell, if required.
  • FIG. 4 A niche construction of the type described above with variable width and variable inclination angle is shown in FIG. 4.
  • the tubular body 12 forms the smallest niche construction that can be carried out.
  • a large number of widths and angles of inclination are structurally possible if the niche width is changed in the direction of the arrows x. It hikes with the different constructions used, the horizontal part of the tubular body 12 in the direction of the arrow towards the tubular body 8.
  • the actual gasification niche is formed by the frustoconical tubular body 8, which can be shaped spirally or by parallel tubes.
  • the tube body 8 rests with a ring 9 welded on tightly against the stop 10 which is also insoluble in the passage opening.
  • the tubular body 8 is guided through a ring welded to it from an angle iron 11.
  • the free leg of the angle iron 11 engages in the sealing system 7, which is fastened to the cylindrical tube wall construction in the area of the passage opening and thus creates a gas-tight seal.
  • Another sealing system 7 is in turn provided on the cover plate 20 with the burner 3.
  • FIGS. 5-7 show one of the possible embodiments.
  • the tubes 1a-1j run vertically down the upper half of the tube wall construction. At the point where they have reached the corresponding point on the circumference of the passage point, they are from the vertically downward escape line at an angle of max. Bent 9o ° away from the gas side towards the burner. This happens both in the upper half I and in the lower half II of the passage point. If the free legs of the bent pipe angles reach the length C according to FIGS. 6 and 7, they are deflected in the direction of the circumference of the passage point and run parallel to the passage point at a distance C over half the circumference, in order to - as shown in FIG. 5 - at the lower half II in the reverse order of the redirections into the pipe wall construction.
  • the tubes 1a-1h of the tube wall construction form the tube collar in FIGS. 6 and 7, while the tubes 1i and 1j pass through without deflections in the vertically downward alignment line of the cylindrical tube wall construction.
  • Sealing systems 7 can be arranged on the tubular collar 1a-1h, by means of which the niches to be used with the cover plate and the burner — not shown here — can be adjusted in a gas-tight manner, as described above. As indicated in Fig. 5 by the hatching between the tubes, the entire cylindrical tube wall construction is welded gas-tight.
  • a tube wall construction designed in accordance with the above description with one or more passage points enables the use of variable niches up to the complete closure of the passage point.
  • FIGS. 8 and 9 Another embodiment of the passage point is shown in FIGS. 8 and 9.
  • FIG. 8 is the view of the passage point from the burner onto the pipe wall construction and
  • FIG. 9 is a section along the line C-C according to FIG. 8.
  • the tubes 1a-1i open into a collector 14 instead of forming a tube collar.
  • the collector tube 14 is gem.
  • Fig. 8 led past the passage point and feeds the lower half of the pipes at this point of the pipe wall construction.
  • sealing systems 7 can be provided, with the aid of which the gas tightness with respect to the gasification interior is ensured.
  • This embodiment takes up little space, is structurally simpler and less complex to carry out than that shown in FIGS. 5-7, and is therefore particularly advantageous.
  • a collector tube two semi-circular ones can also be provided.
  • FIG. 1o A further advantageous embodiment for a compact construction at the passage point is shown in Fig. 1o.
  • inlet pipes 15 and outlet pipes 16 From the inlet pipe 15, the cooling water flows into pipes 1a-1e.
  • the cooling water flow at the lower end of the tubes 1a-1e is deflected from the downward to the upward flow direction by a corresponding number of angle fittings 17, which are in alignment with the passage point on the circumference of the cylindrical tube wall construction, so that the water flow flows through the drain pipe 16.
  • Fig. 11 shows in section along the line D-D according to FIG. 1o the inlet and outlet pipes 15 and 16 offset from one another.
  • the passage point must be closed by a component which corresponds to the design of the pipe wall construction and which also contains the burner.
  • Fig. 12 shows such a closure for a passage point in the cylindrical tube wall construction, in which the vertically downward directed tubes 1 open into an annular collector 18 forming the circumference of the passage point and integrated into the tube wall construction, the cross section of which is designed such that one for a sufficient Cooling required flow rate of the cooling water is reached.
  • the sealing system 7 is attached to this ring collector.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Feeding And Controlling Fuel (AREA)
EP87100840A 1986-04-22 1987-01-22 Installation pour la gazéification sous haute pression de combustibles finement divisés, en particulier solides Expired - Lifetime EP0242504B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863613508 DE3613508A1 (de) 1986-04-22 1986-04-22 Einrichtung zur vergasung feinzerteilter, insbesondere fester brennstoffe unter erhoehtem druck
DE3613508 1986-04-22

Publications (3)

Publication Number Publication Date
EP0242504A2 true EP0242504A2 (fr) 1987-10-28
EP0242504A3 EP0242504A3 (en) 1988-05-11
EP0242504B1 EP0242504B1 (fr) 1990-04-18

Family

ID=6299209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100840A Expired - Lifetime EP0242504B1 (fr) 1986-04-22 1987-01-22 Installation pour la gazéification sous haute pression de combustibles finement divisés, en particulier solides

Country Status (7)

Country Link
US (1) US4818252A (fr)
EP (1) EP0242504B1 (fr)
DE (2) DE3613508A1 (fr)
ES (1) ES2014436B3 (fr)
GR (1) GR3000814T3 (fr)
TR (1) TR22809A (fr)
ZA (1) ZA87837B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010009837A3 (fr) * 2008-07-21 2010-05-06 Uhde Gmbh Canal à scorie sur des brûleurs permettant d'assurer une protection contre l'écoulement de scorie

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017219A1 (de) * 1990-05-29 1991-12-05 Babcock Werke Ag Vorrichtung zur vergasung von kohlenstoffhaltigen materialien
US9051522B2 (en) * 2006-12-01 2015-06-09 Shell Oil Company Gasification reactor
WO2008087133A1 (fr) * 2007-01-17 2008-07-24 Shell Internationale Research Maatschappij B.V. Réacteur de gazéification
JP5420426B2 (ja) * 2007-03-15 2014-02-19 シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ 内部多管壁及び複数バーナーを有するガス化反応容器
CN201205497Y (zh) * 2007-03-30 2009-03-11 国际壳牌研究有限公司 气化反应器
US8960651B2 (en) * 2008-12-04 2015-02-24 Shell Oil Company Vessel for cooling syngas
US8475546B2 (en) * 2008-12-04 2013-07-02 Shell Oil Company Reactor for preparing syngas
US9011560B2 (en) * 2009-06-09 2015-04-21 Sundrop Fuels, Inc. Various methods and apparatuses for an ultra-high heat flux chemical reactor
GB201012461D0 (en) * 2010-07-26 2010-09-08 Doosan Power Systems Ltd Furnace tube arrangment for a steam generator
US9574142B2 (en) 2010-09-07 2017-02-21 Saudi Arabian Oil Company Process for oxidative desulfurization and sulfone management by gasification
US10035960B2 (en) 2010-09-07 2018-07-31 Saudi Arabian Oil Company Process for oxidative desulfurization and sulfone management by gasification
DE102010047145A1 (de) * 2010-09-30 2012-04-05 Alstom Technology Ltd. Wandausbiegung im Bereich einer im wesentlich rechteckförmigen Brenneröffnung
WO2013015899A1 (fr) 2011-07-27 2013-01-31 Saudi Arabian Oil Company Procédé de gazéification d'huile résiduelle lourde avec du coke particulaire provenant d'une unité de cokéfaction retardée
SG11201802775UA (en) * 2015-10-12 2018-05-30 Shell Int Research Cooling device for a burner of a gasification reactor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968423C (de) * 1948-12-07 1958-02-13 Koppers Co Inc Verfahren und Vorrichtung zum Erzeugen von feinkoernigem Koks aus bituminoesen Brennstoffen
DE1076868B (de) * 1958-04-30 1960-03-03 Koppers Gmbh Heinrich Einrichtung zur Brenngaserzeugung durch Vergasung feinverteilter Brennstoffe
US3233597A (en) * 1963-12-30 1966-02-08 Combustion Eng Apparatus for forming openings in furnace walls
DE2038445C3 (de) * 1970-08-01 1978-06-15 Krupp-Koppers Gmbh, 4300 Essen Gasgenerator für feinkörnige Kohle-Brennstoffe
US3712602A (en) * 1971-02-22 1973-01-23 Steel Corp Blast furnace tuyere and method of operating same
DE2425962C3 (de) * 1974-05-30 1979-04-05 Shell Internationale Research Maatschappij B.V., Den Haag (Niederlande) Gasgenerator für die Vergasung feinzerteilter Brennstoffe
DE2504060A1 (de) * 1975-01-31 1976-08-05 Otto & Co Gmbh Dr C Unter druck arbeitender schlackenbadgenerator
US4394849A (en) * 1981-06-22 1983-07-26 Foster Wheeler Energy Corporation Vapor generator having drainable tube bends around burner openings extending through furnace boundary walls formed in part by angularly extending fluid flow tubes
EP0133453B1 (fr) * 1983-08-05 1988-07-27 GebràœDer Sulzer Aktiengesellschaft Echangeur de chaleur, en particulier générateur de vapeur
CN1010028B (zh) * 1985-05-29 1990-10-17 国际壳牌研究有限公司 褐煤气化器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010009837A3 (fr) * 2008-07-21 2010-05-06 Uhde Gmbh Canal à scorie sur des brûleurs permettant d'assurer une protection contre l'écoulement de scorie
RU2507239C2 (ru) * 2008-07-21 2014-02-20 Уде Гмбх Шлаковый желоб в горелках для защиты от осаждающегося шлака
AP3782A (en) * 2008-07-21 2016-08-31 Uhde Gmbh Slag runner on burners for providing protection against dripping slag

Also Published As

Publication number Publication date
EP0242504A3 (en) 1988-05-11
EP0242504B1 (fr) 1990-04-18
ES2014436B3 (es) 1990-07-16
TR22809A (tr) 1988-08-09
US4818252A (en) 1989-04-04
GR3000814T3 (en) 1991-11-15
DE3762351D1 (de) 1990-05-23
ZA87837B (en) 1987-07-30
DE3613508A1 (de) 1987-10-29

Similar Documents

Publication Publication Date Title
EP0242504B1 (fr) Installation pour la gazéification sous haute pression de combustibles finement divisés, en particulier solides
DE2517693C2 (de) Als Längsgegenstromapparat ausgebildeter Wärmeaustauscher
EP0007977B2 (fr) Procédé de cuisson de matériaux particulaires et four à cuve circulaire pour la mise en oeuvre du procédé
CH676603A5 (fr)
DE3009851A1 (de) Anlage mit einem reaktorbehaelter, insbesondere zur vergasung fossiler brennstoffe
DE3009850C2 (de) Reaktorbehälter
DE2033103C3 (de) RuBerzeugu ngsanl age
DE3043853C2 (de) Heißgaskühler mit einem Druckbehälter
DE2820442A1 (de) Waermebehandlungs-vorrichtung zur verlaengerung der lebensdauer eines druckbehaelters, insbesondere eines reaktordruckbehaelters
DE3605811C2 (fr)
DE3208421C2 (fr)
DE4212177C2 (de) Verbrennungsanlage
DE3322464C2 (fr)
DE3309695A1 (de) Schachtkuehler zum trockenloeschen von koks
DE1783165A1 (de) Vorrichtung zur speisung der blasoeffnungen im boden eines konverters
DE4221130C2 (de) Wasserrohr-Dampferzeuger mit vertikal angeordneten Fieldrohren
DE2751942C2 (de) Gaserzeuger mit Schlackenaustrag in eine Löschkammer
DE834112C (de) Waermeaustauscher
DE3023421C2 (de) Ofen für feste Abfallbrennstoffe
EP0630397B1 (fr) Procede permettant de refroidir un gaz brut charge de poussieres, resultant de la gazeification d'un combustible solide contenant du carbone
DE1083235B (de) Vorrichtung fuer die partielle Verbrennung von Kohlenwasserstoffen zu Wasserstoff und Kohlenoxyd enthaltenden Gasgemischen
DE3878673T2 (de) Schornstein mit kondensatableitung.
AT412786B (de) Verfahren zum chargieren von schüttfähigem material und vorrichtung zur durchführung des verfahrens
DE1758535C (de) Ofenkopf für einen Tandemofen
AT258985B (de) Schwenkbare Abzugshaube zum Ableiten der Verbrennungsgase intermittierend arbeitender Hüttenöfen, insbesondere von Konvertern

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES GR

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES GR

17P Request for examination filed

Effective date: 19880426

17Q First examination report despatched

Effective date: 19890810

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GR

REF Corresponds to:

Ref document number: 3762351

Country of ref document: DE

Date of ref document: 19900523

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3000814

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

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19961217

Year of fee payment: 11

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

Ref country code: GR

Payment date: 19961223

Year of fee payment: 11

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

Ref country code: ES

Payment date: 19970129

Year of fee payment: 11

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: 19980123

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 NON-PAYMENT OF DUE FEES

Effective date: 19980131

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 NON-PAYMENT OF DUE FEES

Effective date: 19981001

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20000503