EP0710799A2 - Procédé d'oxydation thermiques de liquides résiduaires - Google Patents

Procédé d'oxydation thermiques de liquides résiduaires Download PDF

Info

Publication number
EP0710799A2
EP0710799A2 EP95116792A EP95116792A EP0710799A2 EP 0710799 A2 EP0710799 A2 EP 0710799A2 EP 95116792 A EP95116792 A EP 95116792A EP 95116792 A EP95116792 A EP 95116792A EP 0710799 A2 EP0710799 A2 EP 0710799A2
Authority
EP
European Patent Office
Prior art keywords
flue gas
liquid
fan
drops
nozzle
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
EP95116792A
Other languages
German (de)
English (en)
Other versions
EP0710799B1 (fr
EP0710799A3 (fr
Inventor
Uwe Listner
Martin Schweitzer
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of EP0710799A2 publication Critical patent/EP0710799A2/fr
Publication of EP0710799A3 publication Critical patent/EP0710799A3/fr
Application granted granted Critical
Publication of EP0710799B1 publication Critical patent/EP0710799B1/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
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/008—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for liquid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/12—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating using gaseous or liquid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/446—Waste feed arrangements for liquid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/12—Sludge, slurries or mixtures of liquids

Definitions

  • the invention relates to a method for the complete thermal oxidation of liquid waste materials.
  • the waste material is introduced into a hot flue gas stream, evaporated and thermally oxidized.
  • the flue gas stream must contain the oxygen necessary for the oxidation.
  • An essential step is the utilization of the thermal energy of a flue gas stream coming from an incineration plant for thermal oxidation and thus disposal of liquid waste.
  • the oxygen required for this oxidation process is supplied with the hot flue gas stream; i.e. the flue gas flow must contain sufficient amounts of oxygen.
  • the hot flue gas e.g. generated by a waste incineration plant, the combustion must be done with an excess of oxygen, so that part of the unused oxygen is removed with the hot flue gas.
  • this is an incineration plant with an afterburning chamber to which the liquid waste materials to be disposed of are fed.
  • one or more special burners are installed in the afterburning chamber, which are charged with the liquid waste fuel.
  • the liquid waste fuel is atomized in the burner flame.
  • the swarm of drops generated forms a full cone.
  • a sufficient quantity of combustion air and the compressed air required to atomize the liquid waste material are also fed to each burner.
  • the atomized liquid is initially available as a droplet collective that mixes with the Initial velocity of the atomization is moved into the combustion chamber.
  • the atomizing air emerging from the nozzle at the speed of sound flows between the individual drops. This two-phase mixture is enveloped by the initially relatively cold combustion air.
  • the invention is based on the object of introducing poorly combustible liquid waste fuels into the afterburning chamber in such a way that complete burnout is ensured even under unfavorable combustion conditions.
  • the liquid waste fuel is injected into the hot flue gas stream with a flow component perpendicular to the main flow direction as a fan-shaped flat jet with the help of one or more two-substance nozzles which pulsate at a frequency of 5 s von1 to 70 s ⁇ 1, preferably 10 s ⁇ 1 to 20 s ⁇ 1 operated, with each two-component nozzle alternately a fan-shaped spray carpet with relatively large drops of long range and a flat-shaped spray carpet with relatively fine drops of short range is generated, so that the flue gas stream alternating with finely sprayed drops of short range and coarse that flue gas with a relatively large throw penetrating drops.
  • the liquid waste material is preferably injected into a flue gas stream whose temperature is at least 800 ° C. and whose oxygen content is at least so high that complete oxidation of the combustible substances is ensured.
  • the geometry of the two-component nozzles and the flow conditions (throughput and operating pressures) are chosen so that the opening angle of the fan-shaped spray carpets is 60 ° to 160 °.
  • the atomizing gas throughput and the liquid throughput at the two-component nozzles are set such that the time-averaged mass flow ratio of the air and liquid streams at each two-component nozzle is in the range from 0.01 to 0.2, while the instantaneous value of the mass flow ratio fluctuates according to the pulsation frequency .
  • the pulsating mode of operation can be carried out by periodically applying compressed gas or liquid to the two-substance nozzle.
  • the pulsating operation can also be generated in terms of flow technology in the two-component nozzle itself when the compressed air and liquid are kept constant over time.
  • a main combustion chamber 1 with a burner 2 and a main flame 3 is shown schematically in FIG. 1. So much combustion air or oxygen is fed to the main flame 3 that the flue gas 4 flowing out of the main combustion chamber 1 still has a considerable residual oxygen content (more than 6%).
  • the oxygen content of the flue gas can be varied by supplying the main flame 3 more or less in excess oxygen or combustion air.
  • the oxygen-containing flue gas 4 leaves the main combustion chamber 1 at a temperature of 1000 ° C to 1400 ° C and then flows into the afterburning chamber 5.
  • liquid waste fuels are injected, which then thermally oxidize with the residual oxygen in the hot flue gas stream and thus to be disposed of.
  • one or more burners are installed in the afterburning chamber, which are equipped with their own burner air supply. The liquid waste to be treated is injected directly into the flames of these burners.
  • the new process eliminates the need for burners in the afterburner.
  • the liquids to be oxidized are injected into the flue gas stream in a fan shape using special two-substance nozzle lances 6.
  • the fan-shaped spray carpet 7 is shown in Fig. 2. Its transverse extent b is considerably larger than its thickness a (see FIG. 1).
  • the main difference compared to conventional nozzle lances is that the two-substance nozzle lances 6 used here alternately produce a fan-shaped spray carpet with relatively large drops of long range and a fan-shaped spray carpet with relatively fine drops of short range, so that the flue gas stream 4 alternates with finely sprayed drops of short range and rough that flue gas with a relatively large throw penetrating drops.
  • This pulsating operation is referred to below as "bimodal operation”.
  • bimodal two-substance nozzle lances 6 are arranged in the afterburning chamber 5 in a rotationally symmetrical manner.
  • the fan-shaped spray carpets 7 of the two-substance nozzle lances 6 partially overlap.
  • the atomizing gas for example air and the liquid to be disposed of, is fed to a bimodal two-substance nozzle lance 6.
  • the opening angle of the fan-shaped spray carpets is approx. 120 °.
  • the spray level is perpendicular to the main direction of flow of the hot flue gases. However, this condition need not be strictly observed. In the bimodal mode of operation, coarse and fine drops of different speeds and thus throwing distances replace each other.
  • Bimodal spraying is also characterized by a very wide range of drops. At a throughput of 1.5 m3 / h, coarse drops with a diameter of approx. 2 mm and a range of approx. 6 m were observed on the one hand and small drops of approx. 30 ⁇ m with a range of approx. 0.4 m on the other.
  • An essential characteristic of this mode of operation is the rapid change in time between fine drops and coarse drops. The fine drops are generated when the two-substance nozzle lance works in the two-substance atomization mode. The coarse drops, on the other hand, arise in the subsequent mode of the pressure nozzle operation.
  • the fine drops evaporate quickly and ignite quickly in the hot atmosphere. This results in a flame that stabilizes itself near the nozzle.
  • the turbulence bales 8 formed on contact with the flue gas and formed from steam and flue gas are considerably smaller than in the usual post-combustion because neither significant drop collectives nor cold combustion air hinder the evaporation of the liquid and also do not delay the mixing with the hot flue gas.
  • a steam trail with spatially different flue gas-steam mixture ratios is generated along their trajectory, with the ratio of flue gas containing steam to oxygen becoming smaller over time. If there is a combustible mixture locally, a stable combustion takes place after an ignition delay time in the ms range.
  • the pulsation nozzle forms the front part of the nozzle lance 6 shown in FIGS. 1 to 3 and, according to FIG. 4, consists of a commercially available flat jet nozzle 10 screwed into a weld-on sleeve 9, a cladding tube 11 firmly connected to the weld-on sleeve 9, and an inner tube 12 which can be displaced axially in the cladding tube. and a liquid distributor 13 attached to the inner tube.
  • the inner tube 12 with the liquid distributor 13 attached is axially displaceably mounted in the cladding tube 11 via centering webs 14. The required sealing of the slidable inner tube 12 with respect to the cladding tube 9 is not shown here.
  • the liquid to be oxidized flows through the inner tube 12 and compressed air as a gaseous atomizing medium flows through the annular gap 15 between the inner tube 12 and the cladding tube 11.
  • the liquid distributor 13 consists of a tube piece which is closed at the end and is placed on the inner tube 12 and has outlet bores 16 oriented perpendicular to the axis and offset from one another.
  • the liquid to be oxidized enters the inner tube 12 through the outlet bores 16 and into a first resonance chamber 17 connected to the distributor 13 , while the compressed air is supplied via the annular gap between the inner tube 12 and the cladding tube 11.
  • the compressed air flows through the groove-like open areas 18 between the centering webs 14.
  • the outlet bores 16 are provided in the distributor 13 in such a way that they are each in the axial extension of the centering segments 14 partially closing the annular gap cross section; ie the outlet bores 16 lie in the dead space or in the flow shadow behind the centering webs 14. In this way, mixing of the liquid phase and the gaseous phase (compressed air) in the resonance chamber 17 is largely ruled out.
  • the resonance chamber 17 is delimited on the long side by the cladding tube 11, on the front end at the inlet by the liquid distributor 13 and at the outlet by a throttle or orifice 19 with a cross section which is greatly reduced in relation to the inner diameter of the resonance chamber 17.
  • the effective length a and thus also the volume of the resonance chamber 17 change.
  • Another resonance chamber 20 connects to the throttle 19. Through the actual nozzle opening on the nozzle head, which is designed here as a narrow rectangular slot 21, the two-phase mixture of compressed air / waste liquid located in the second resonance chamber 20 enters the flue gas duct.
  • the second resonance chamber 20 can therefore also be regarded as a spray chamber. In principle, more than two resonance chambers could also be connected in series, each of which is separated from the other by orifices or chokes.
  • the instantaneous value K of the mass flow ratio during pulsed operation of the two-substance nozzle according to FIG. 4 is plotted as a function of time.
  • liquid and compressed air alternately flow through the throttle 19, while in the other extreme case the mass flow ratio K of the gaseous and liquid phase flowing simultaneously through the throttle point practically does not change.
  • the liquid-gas mixture From the atomization chamber 20 (last resonance chamber), the liquid-gas mixture enters the flue gas duct in a periodically variable composition through the flat jet nozzle exit surface 21. As shown in FIG.
  • the mass flow ratio K tends from an upper limit value - this corresponds to a high proportion of gaseous atomizing medium in the total mass flowing through the nozzle slot 21 - to a lower limit value in order to then rise again to the maximum value.
  • the upper limit corresponds to the state of fine atomization with a short range and the lower limit to the formation of coarse drops with a long range. This process is repeated periodically.
  • the repetition frequency or pulsation frequency can be specifically changed by increasing or decreasing the volume of the resonance chamber 17. If the volume is e.g. increased by increasing the distance a, the frequency decreases (lower field in FIG. 5), while when the volume is reduced the pulsation frequency increases (upper field in FIG. 5).
  • the dependence of the pulsation frequency on the length a of the resonance chamber 17 measured on a two-substance nozzle according to FIGS. 3 and 4 is shown in FIG. 6.
  • the volume of the resonance chamber 17 could also be changed in that secondary chambers are provided, which are switched on if necessary.
  • the pulsation mode occurs automatically with the resonance chamber two-component nozzle described above (autopulsation).
  • autopulsation a forced pulsation can also be brought about if a two-component nozzle is periodically pressurized with compressed air or liquid. This can be done, for example, by so-called flutter valves, which are built into the supply lines for the compressed air or the liquid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Chimneys And Flues (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Treating Waste Gases (AREA)
EP95116792A 1994-11-07 1995-10-25 Procédé d'oxydation thermiques de liquides résiduaires Expired - Lifetime EP0710799B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4439670A DE4439670A1 (de) 1994-11-07 1994-11-07 Verfahren zur thermischen Oxidation von flüssigen Abfallstoffen
DE4439670 1994-11-07

Publications (3)

Publication Number Publication Date
EP0710799A2 true EP0710799A2 (fr) 1996-05-08
EP0710799A3 EP0710799A3 (fr) 1998-01-14
EP0710799B1 EP0710799B1 (fr) 2001-02-28

Family

ID=6532642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95116792A Expired - Lifetime EP0710799B1 (fr) 1994-11-07 1995-10-25 Procédé d'oxydation thermiques de liquides résiduaires

Country Status (5)

Country Link
US (1) US5634413A (fr)
EP (1) EP0710799B1 (fr)
JP (1) JPH08210619A (fr)
CA (1) CA2162080A1 (fr)
DE (2) DE4439670A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107559823A (zh) * 2017-09-21 2018-01-09 哈尔滨工业大学 一种炉内脱硝与两级燃尽风布置的低氮燃烧装置
CN107606602A (zh) * 2017-09-21 2018-01-19 哈尔滨工业大学 一种sncr和ofa交错布置的卧式锅炉

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11218316A (ja) 1998-02-03 1999-08-10 Risou Burner Kk 廃液焼却炉及び焼却方法
US20100130368A1 (en) * 1998-07-30 2010-05-27 Shankar Balasubramanian Method and system for sequencing polynucleotides
US6787308B2 (en) * 1998-07-30 2004-09-07 Solexa Ltd. Arrayed biomolecules and their use in sequencing
US20030022207A1 (en) * 1998-10-16 2003-01-30 Solexa, Ltd. Arrayed polynucleotides and their use in genome analysis
US20040106110A1 (en) * 1998-07-30 2004-06-03 Solexa, Ltd. Preparation of polynucleotide arrays
US6546883B1 (en) * 2000-07-14 2003-04-15 Rgf, Inc. Thermo-oxidizer evaporator
US7160566B2 (en) * 2003-02-07 2007-01-09 Boc, Inc. Food surface sanitation tunnel
DE102004026646B4 (de) * 2004-06-01 2007-12-13 Applikations- Und Technikzentrum Für Energieverfahrens-, Umwelt- Und Strömungstechnik (Atz-Evus) Verfahren zur thermischen Entsorgung schadstoffhaltiger Substanzen
US7866638B2 (en) * 2005-02-14 2011-01-11 Neumann Systems Group, Inc. Gas liquid contactor and effluent cleaning system and method
US8398059B2 (en) * 2005-02-14 2013-03-19 Neumann Systems Group, Inc. Gas liquid contactor and method thereof
US8113491B2 (en) 2005-02-14 2012-02-14 Neumann Systems Group, Inc. Gas-liquid contactor apparatus and nozzle plate
US7379487B2 (en) * 2005-02-14 2008-05-27 Neumann Information Systems, Inc. Two phase reactor
US8864876B2 (en) * 2005-02-14 2014-10-21 Neumann Systems Group, Inc. Indirect and direct method of sequestering contaminates
FI121990B (fi) * 2007-12-20 2011-07-15 Beneq Oy Laite sumun ja hiukkasten tuottamiseksi
CN107120665A (zh) * 2017-07-04 2017-09-01 大连海伊特重工股份有限公司 一种含盐废液处理装置及方法
CN107559822B (zh) * 2017-09-21 2020-06-09 哈尔滨工业大学 中心给粉旋流煤粉燃器和燃尽风布置结构
TWI884040B (zh) * 2024-07-18 2025-05-11 鍾勳德 多樣廢液混合調節系統與廢液燃燒系統

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945713C (de) * 1952-01-18 1956-07-12 Kloeckner Humboldt Deutz Ag Einrichtung zur Beseitigung phenolhaltiger Abwaesser durch Einspritzen in heisse Brenngase
US2879948A (en) * 1956-04-18 1959-03-31 Alfred F Seibel Fuel and gaseous mixing unit
DE1776082A1 (de) * 1968-09-18 1971-06-09 Babcock & Wilcox Ag Einrichtung zur Verfeuerung fluessiger Abfallprodukte
US3722433A (en) * 1971-05-18 1973-03-27 R Kramer Method and apparatus for waste incineration
US4102651A (en) * 1972-10-14 1978-07-25 Davy Powergas Gmbh Ultrasonic atomizer for waste sulfuric acid and use thereof in acid cracking furnaces
ATA871674A (de) * 1974-10-30 1978-01-15 Dumag Ohg Einrichtung zum verbrennen von schwer brennbaren, fliessfahigen stoffen und stoffgemischen
DE2547462A1 (de) * 1975-10-23 1977-04-28 Metallgesellschaft Ag Verfahren und vorrichtung zum verbrennen fester oder fluessiger abfallstoffe
DE3117524A1 (de) * 1980-05-05 1982-08-19 Etablissements Wanson, Construction de Matériel Thermique, S.A., 1130 Bruxelles Zerstaeuberduese fuer fluessigkeiten, insbesondere zum zerstaeuben von zu verbrennenden ablaugen
CA1180734A (fr) * 1981-04-21 1985-01-08 David R.P. Simpkins Atomiseur
SU1392309A1 (ru) * 1986-06-16 1988-04-30 Ленинградский технологический институт холодильной промышленности Устройство дл огневого обезвреживани жидких отходов
DE3625397A1 (de) * 1986-07-26 1988-02-04 Gutehoffnungshuette Man Nachbrennkammer hinter einem verbrennungsofen einer verbrennungseinrichtung fuer chemischen abfall
CH679328A5 (fr) * 1988-07-29 1992-01-31 W & E Umwelttechnik Ag
US4974530A (en) * 1989-11-16 1990-12-04 Energy And Environmental Research Apparatus and methods for incineration of toxic organic compounds
DE4315385A1 (de) * 1993-05-08 1994-11-10 Bayer Ag Verfahren zur Entstickung von heißen Rauchgasen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEM. ING. TECH., vol. 63, 1991, pages 621 - 622

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107559823A (zh) * 2017-09-21 2018-01-09 哈尔滨工业大学 一种炉内脱硝与两级燃尽风布置的低氮燃烧装置
CN107606602A (zh) * 2017-09-21 2018-01-19 哈尔滨工业大学 一种sncr和ofa交错布置的卧式锅炉
CN107606602B (zh) * 2017-09-21 2019-04-16 哈尔滨工业大学 一种sncr和ofa交错布置的卧式锅炉

Also Published As

Publication number Publication date
DE4439670A1 (de) 1996-05-09
DE59509056D1 (de) 2001-04-05
EP0710799B1 (fr) 2001-02-28
JPH08210619A (ja) 1996-08-20
EP0710799A3 (fr) 1998-01-14
US5634413A (en) 1997-06-03
CA2162080A1 (fr) 1996-05-08

Similar Documents

Publication Publication Date Title
EP0710799B1 (fr) Procédé d'oxydation thermiques de liquides résiduaires
DE69519197T2 (de) Zerstäuber für die Verbrennung von flüssigem Brennstoff mit kleinem Sprühwinkel
EP0892212B1 (fr) Buse de pulvérisation par pression
DE2641685C2 (fr)
EP0433790B1 (fr) Brûleur
DE3306483C2 (fr)
EP0902233B1 (fr) Buse de pulvérisation par pression combinée
DE69619439T2 (de) Vorrichtung zur Zerstäubung einer Flüssigkeit
DE69730702T2 (de) Vorrichtung und verfahren zur verbrennung von brennstoff
DE69128333T2 (de) Brennkammer und Verbrennungsvorrichtung
WO1981001186A1 (fr) Procede et dispositif pour l'obtention de microgouttes
DE69212686T2 (de) Brenneranlage für fliessfähige Abfallstoffe
DE10304386A1 (de) Doppelfluid-Verwirbelungsdüse mit selbstreinigendem Zapfen
DE19608349A1 (de) Druckzerstäuberdüse
DE2300217C3 (de) Einspritzvorrichtung zur Einspritzung flüssigen Brennstoffs in Hochöfen
EP0101462B1 (fr) Bruleur pour carburants a l'etat poudreux, gazeux et/ou liquide
DE69423900T2 (de) V-jet atomisateur
DE69426641T2 (de) Brenner für flüssigen brennstoff
DE4422535A1 (de) Verfahren zum Betrieb einer Feuerungsanlage
DE3446788A1 (de) Flammenverdampfungsbrenner mit vorbrennkammer
DE2751524A1 (de) Blaubrennender oelbrenner
DE69304813T2 (de) Verfahren und Vorrichtung zur Zerstäubung einer Flüssigkeit mittels mindestens einem Hilfsfluidum
AT285790B (de) Verfahren zur vollständigen Verbrennung von flüssigen und gasförmigen Brennstoffen in Öfen und Feuerungsanlagen und Vorrichtung zur Durchführung dieses Verfahrens
DE2900142A1 (de) Oelbrenner mit veraenderbarer flammenform
EP0579008A2 (fr) Brûleur à huile

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): BE CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19980714

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20000621

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): BE CH DE FR GB IT LI NL SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

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

Effective date: 20010309

REF Corresponds to:

Ref document number: 59509056

Country of ref document: DE

Date of ref document: 20010405

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

Ref country code: GB

Ref legal event code: IF02

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: SE

Payment date: 20040917

Year of fee payment: 10

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

Ref country code: FR

Payment date: 20040923

Year of fee payment: 10

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

Ref country code: CH

Payment date: 20041006

Year of fee payment: 10

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

Ref country code: GB

Payment date: 20041020

Year of fee payment: 10

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

Ref country code: BE

Payment date: 20041027

Year of fee payment: 10

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

Ref country code: NL

Payment date: 20041029

Year of fee payment: 10

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 NON-PAYMENT OF DUE FEES

Effective date: 20051025

Ref country code: GB

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

Effective date: 20051025

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: 20051026

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: 20051031

Ref country code: CH

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

Effective date: 20051031

Ref country code: BE

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

Effective date: 20051031

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

Ref country code: NL

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

Effective date: 20060501

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20051025

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: 20060630

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20060501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060630

BERE Be: lapsed

Owner name: *BAYER A.G.

Effective date: 20051031

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

Ref country code: DE

Payment date: 20091006

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59509056

Country of ref document: DE

Effective date: 20110502

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: 20110502