EP1058051B1 - Fluidized bed gasification furnace - Google Patents
Fluidized bed gasification furnace Download PDFInfo
- Publication number
- EP1058051B1 EP1058051B1 EP99906525A EP99906525A EP1058051B1 EP 1058051 B1 EP1058051 B1 EP 1058051B1 EP 99906525 A EP99906525 A EP 99906525A EP 99906525 A EP99906525 A EP 99906525A EP 1058051 B1 EP1058051 B1 EP 1058051B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluidized
- bed
- gasification furnace
- medium
- fluidized medium
- 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
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
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/24—Devices for removal of material from the bed
-
- 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
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
-
- 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
- F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
Definitions
- the present invention relates to a fluidized-bed gasification furnace, and more particularly to a fluidized-bed gasification furnace characterized by discharge of a fluidized medium.
- a fluidized bed furnace is known from document Patent Abstracts of Japan vol. 012, no. 292 (M-729), 10 August 1988.
- a fluidized bed is formed by supplying a gas upwardly into a particle-filled bed filled with particles of a fluidized medium, such as silica sand or iron oxide, having a size of about several tens of micrometers to about several millimeters for thereby fluidizing the fluidized medium.
- a fluidized-bed reactor the properties possessed by the fluidized bed such as the fluidity, uniformity, high heat capacity, and large surface area are utilized to rapidly, stably, and homogeneously conduct a chemical reaction.
- the fluidized-bed reactor has been applied to a catalytic cracking furnace in petroleum refining, and a combustion furnace and an incineration furnace for solid fuels such as coal, and extensively utilized in these fields.
- Fluidized-bed gasification furnaces possess excellent mixing properties and heat transfer efficiency because of the fluidized medium, and hence are advantageous in that size and properties of introducible fuels are less limited than entrained bed reactors.
- the fluidized-bed gasification furnaces have a drawback that the operation temperature should be lower than that of the entrained bed reactors to prevent the fluidized medium and ash content in fuels from melting and adhering to each other at high temperatures, and hence inhibiting fluidization of the fluidized medium. Therefore, it is necessary that the operation temperature is about 900°C or lower when coal is used as the fuel, and about 600°C to about 800°C when wastes are used as the fuel, although influenced by the properties of wastes. When the wastes contain alkali metals, the operation temperature should be further lower.
- tar is a problem in the case of pyrolysis and gasification of wastes or coal at a relatively low temperature.
- tar is in a vapor form at a temperature of around 600°C, and when the temperature is lowered to 200°C or below, tar is liquefied to develop adhesiveness, thus causing various troubles associated with handling of particles.
- the fluidized-bed gasification furnace has a feature that since a large amount of char stays within the furnace, when incombustibles and the like are withdrawn from the bed, high-temperature char is brought into contact with air and then combusted to increase the temperature thereof, thus tending to form clinker.
- the fluidized bed gasification reactor has a feature in less restriction on the size and properties of introducible fuels.
- a fuel containing incombustibles such as coal or wastes
- the incombustibles remaining within the reactor become large, and thus such incombustibles are required to be discharged from the reactor by some methods.
- withdrawing the fluidized medium at a high temperature of 500°C to 600°C from the fluidized bed is very difficult due to its high temperature even in the atmospheric-pressure reactor, and hence is hardly possible in the gasification furnace operated under pressure.
- Cooling the fluidized medium for avoiding the above problem causes liquefaction of tar vapor, often leading to various troubles. Therefore, the fuel should be crushed to a small size and then introduced into the fluidized-bed gasification furnace to dispense with withdrawal of incombustibles. This fails to utilize the feature of the fluidized-bed reactor.
- the present invention has been made in view of the above drawbacks. It is therefore an object of the present invention to provide a fluidized-bed gasification furnace having excellent practicability which can be safely operated not only under atmospheric pressure but also under high pressure, while utilizing such feature of the fluidized-bed reactor that less restriction on the size and properties of introducible fuels are imposed.
- a fluidized-bed gasification furnace utilizing a fluidized-bed reactor, comprising: a discharge port provided in the vicinity of a floor in a fluidized bed for discharging a fluidized medium, the discharge port being connected to a fluidized medium discharge chute extending downwardly; and a gas blow device provided below the chute.
- a gas blow device is provided also at the lowermot part of the fluidized medium discharge chute.
- oxygen-free gas is used as a gas to be blown.
- a device for mechanically withdrawing the fluidized medium is provided in the vicinity of the lowermost part of the fluidized medium discharge chute.
- This device preferably comprises a screw conveyor.
- the fluidized-bed reactor used in the present invention is preferably divided into units performing respective functions so that the fluidized-bed reactor can easily deal with fuels having different properties by changing the combination of each of units.
- FIGS. 1A, 1B, and 1C are cross-sectional views showing the structure of a cylindrical fluidized-bed gasification furnace according to an embodiment of the present invention.
- FIG. 1A is a vertical cross-sectional view showing the fluidized-bed gasification furnace
- FIG. 1B is a cross-sectional view taken along a line A-A of FIG. 1A
- FIG. 1C is a cross-sectional view taken along a line B-B of FIG. 1A.
- the fluidized-bed gasification furnace using a cylindrical fluidized-bed reactor shown in FIGS. 1A through 1C comprises a fluidized-bed unit 1, an under-furnace chute unit 2, a medium discharge device unit 3, a free board unit 4, and a deflector unit 5.
- the fluidized-bed reactor comprises the fluidized-bed unit 1, the under-furnace chute unit 2, and the medium discharge device unit 3. Adjacent units are connected to each other by flanges.
- a fluidizing gas dispersion device 6 having a conical top surface is provided inside the fluidized-bed unit 1, and has a plurality of fluidizing gas dispersion nozzles 7 on the top surface thereof.
- the interiors of the fluidized-bed unit 1 and the units below the fluidized-bed unit 1 are filled with a fluidized medium 11.
- the fluidized medium above the fluidizing gas dispersion device 6 is fluidized by a fluidizing gas blown from the fluidizing gas dispersion nozzles 7 to form a fluidized bed 8.
- An fluidizing gas header 9 comprising at least two divided segments are housed in the fluidizing gas dispersion device 6, and the velocity of the fluidizing gas blown from the fluidizing gas dispersion nozzles 7 is regulated so that the velocity of the fluidizing gas blown into the peripheral portion is larger than the velocity of the fluidizing gas blown into the central portion, thereby developing internal revolving flows 12 of the fluidized medium in the fluidized bed.
- the temperature of the fluidized medium over the fluidizing gas dispersion device 6 is kept at 400°C to 1,000°C, preferably 500°C to 800°C.
- a discharge port 16 extending radially outwardly for the fluidized medium is provided inside the fluidized-bed unit 1 and above the periphery of the fluidizing gas dispersion device 6. Below the discharge port 16, there is provided a gap 20 defined between the fluidizing gas dispersion device 6 and the inner wall of the fluidized-bed unit 1.
- This gap 20 serves as a discharge chute for the fluidized medium, and is divided into four chutes 20a to 20d by supports 10 for fixing the fluidizing gas dispersion device 6 to the inner wall of the fluidized-bed unit 1.
- Pipes for supplying fluidizing gases from the exterior of the fluidized-bed unit 1 into the fluidizing gas header 9 may be provided inside the supports 10.
- the chutes 20a to 20d are preferably provided so as to face the whole side surface of the fluidizing gas dispersion device 6 in order to prevent incombustibles from accumulating in the fluidized bed 8.
- the support 10 necessarily has an angled upper portion, the top of which is acute.
- the support 10 should have a certain width. Therefore, the support 10 should have a shape broadened downwardly, with the result that the width of the chutes 20a to 20d is reduced in the circumferential direction.
- the lower side 6a of the fluidizing gas dispersion device 6 is downwardly inclined toward the centerline.
- the dimension in the radial direction of the chutes 20a to 20d is downwardly increased to prevent the horizontal sectional area thereof from decreasing downwardly.
- Each of gas blow nozzles 13 is provided below each of the chutes 20a to 20d and in the vertical direction of each of the chutes 20a to 20d.
- the interiors of the chutes can be purged with steam or inert gas introduced from the gas blow nozzles 13 in order to prevent tar and oxygen from diffusing therethrough, or to eliminate the clogging of the chutes by vigorously fluidizing the fluidized medium.
- the medium discharge device unit 3 is connected to the lower end of the under-furnace chute unit 2.
- the inner side of the under-furnace chute unit 2 in the gasification furnace according to this embodiment is inclined so as to correspond to the size of the inlet of the medium discharge device unit 3, and hence is throttled as a whole.
- a straight vertical wall may, of course, be adopted, or alternatively the inner side may be eccentric so as to have both vertical section and inclined section.
- a medium discharge device 15 is provided at the lower part of the medium discharge device unit 3.
- a screw conveyor is used as the medium discharge device 15.
- a discharge device which can discharge incombustibles in the transverse direction such as a chain conveyor, may be used depending on the properties of incombustibles.
- the medium discharge device 15 is transversely provided in the horizontal direction. Alternatively, the medium discharge device 15 may be vertically inclined.
- a gas blow nozzle 14 is provided at the lowermost part of the medium discharge device unit 3 and below the medium discharge device 15.
- the number of nozzles may be increased as necessary.
- the concentration of incombustibles can be expected by classification effect caused by a gas blown through the gas blow nozzle 14, thus reducing the amount of the discharged fluidized medium, and simultaneously carry-over heat loss.
- Oxygen-free gas 30 is blown from the gas blow nozzle 14.
- the gasification furnace shown in FIGS. 1A through 1C is divided into units performing respective functions.
- the whole gasification furnace may, of course, be formed as an integral structure.
- the whole gasification furnace may be formed as an integral structure.
- the separable unit-type gasification furnace as shown in FIGS. 1A through 1C may be effective.
- the separable unit-type structure has another advantage in that the structure can be easily changed depending on the properties of fuels.
- a straight pipe section 1a may be additionally provided between the deflector unit 5 and the fluidized-bed unit 1 to increase the bed height.
- a free board unit 4 bulged outwardly in its portion slightly above the flange may be used to increase the internal volume of the free board.
- FIGS. 2A, 2B, and 2C are cross-sectional views showing the structure of a rectangular fluidized-bed gasification furnace according to another embodiment of the present invention.
- FIG. 2A is a vertical cross-sectional view showing the fluidized-bed gasification furnace
- FIG. 2B is a cross-sectional view taken along a line A-A of FIG. 2A
- FIG. 2C is a cross-sectional view taken along a line B-B of FIG. 2A.
- FIGS. 2A through 2C which are designated by the same reference numerals as those shown in FIGS. 1A through 1C have the same function, structure, and operation as those shown in FIGS. 1A through 1C.
- the outer wall of the fluidized-bed unit 1 is in the form of rectangle.
- a rectangular fluidizing gas dispersion device 6 provided in the fluidized-bed unit 1 has an angled upper portion.
- two internal revolving flows 12, which are symmetrical with respect to a central plane, are formed respectively between the central portion and the left peripheral portion and between the central portion and the right peripheral portion.
- An outwardly extending fluidized medium discharge port 16 is provided in the fluidized-bed unit 1 and above the periphery of the fluidizing gas dispersion device 6. Below the discharge port 16, there is provided a gap 20 defined between the fluidizing gas dispersion device 6 and the inner wall of the fluidized-bed unit 1.
- This gap 20 serves as a fluidized medium discharge chute. As shown in FIG. 2B, the gap 20 comprises two chutes 20a and 20b. Three gas blow nozzles 13 are provided below each of the chutes 20a, 20b and in the vertical direction of the chutes 20a, 20b.
- FIG. 3 is a schematic view showing the whole construction of components around the gasification furnace used under pressure according to an embodiment of the present invention.
- a lock hopper 102 for pressure seal is connected to the downstream side of the medium discharge device unit provided at the lower part of the gasification furnace 101 having a structure shown in FIGS. 1A through 1C or FIGS. 2A through 2C.
- a vibrating screen 103 is provided downstream of the lock hopper 102.
- Incombustibles 61 are separated from a fluidized medium 60 by the vibrating screen 103. The incombustibles 61 are discharged to the outside of the system, while the fluidized medium 60 is returned into the furnace.
- the fluidized medium 60 separated from the incombustibles 61 by the vibrating screen 103 is carried by a fluidized medium conveyor 104, passed through the lock hopper 105 for a fluidized medium, and returned to the gasification furnace 101 by a fluidized medium feed conveyor 106.
- a fluidized medium conveyor 104 since the portion up to the lock hopper 102 is pressurized, dew condensation tends to occur. Therefore, measures such as heat insulation or steam heat tracing are preferably taken for preventing dew condensation.
- FIG. 4 is a schematic view showing the whole construction of components around the gasification furnace used under pressure according to another embodiment of the present invention.
- the fluidized medium carried by the fluidized medium conveyor 104 in the same manner as in FIG. 3 is once received in a fluidized medium hopper 107.
- the flow rate of the fluidized medium can be adjusted by a constant-rate medium supply device 108.
- a changeover chute 109 permits the fluidized medium to be fed through the lock hopper 105 into the furnace, or alternatively permits the fluidized medium together with a fuel 50 to be fed through a lock hopper 110 into the furnace by a feed conveyor 111.
- FIG. 5 is a schematic view showing the whole construction of components around the gasification furnace used under atmospheric pressure according to another embodiment of the present invention.
- a mixture of incombustibles and a fluidized medium discharged from the gasification furnace 101 is carried by a conveyor 104 and is separated into incombustibles 61 and a fluidized medium 60 by a vibrating screen 103. Thereafter, the fluidized medium 60 is fed into the gasification furnace 101 by a fluidized medium feed conveyor 106.
- the passage is switched by the changeover chute 109 to store an excessive fluidized medium in a fluidized medium hopper 107, and, as needed, the fluidized medium is supplied to the fluidized medium feed conveyor 106 by a constant-rate supply device 108, and then introduced into the furnace.
- One method is to use a conveyor 104 of such a type that the interior of the conveyor is filled with the fluidized medium.
- This type of conveyor has a problem that required power is large because the fluidized medium present in the interior of the conveyor should be always agitated.
- Another method is to provide a seal damper between the outlet of the fluidized medium discharge conveyor provided at the bottom of the gasification furnace 101 and the conveyor 104.
- a double damper system is preferably adopted.
- a single damper cooperated with the operation and stop of the fluidized medium discharge conveyor can be expected to provide a certain degree of such effect.
- the present invention has the following effects.
- the present invention is preferably applicable to an apparatus for producing a gas from fuels such as wastes or coal with a fluidized bed.
Description
Claims (5)
- A fluidized-bed gasification furnace (1) utilizing a fluidized-bed reactor, comprising:a discharge port (16) provided in the vicinity of a floor (6) in a fluidized bed for discharging a fluidized medium, the discharge port (16) being connected to a fluidized medium discharge chute (20) extending downwardly; and a gas blow device (13, 14) provided below said chute,
- A fluidized-bed gasification furnace according to claim 1, wherein a device for mechanically withdrawing the fluidized medium is provided in the vicinity of the lowermost part of said fluidized medium discharge chute.
- A fluidized-bed gasification furnace according to claim 1 or 2, wherein said gas blow device is provided at the lowermost part of said fluidized medium discharge chute.
- The fluidized-bed gasification furnace according to claim 2, or 3, wherein said device for withdrawing the fluidized medium comprises a screw conveyor.
- The fluidized-bed gasification furnace according to any one of claims 1 through 4, wherein said fluidized-bed reactor is divided into units performing respective functions so that said fluidized-bed reactor can easily deal with fuels having different properties by changing the combination of each of units.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6188698 | 1998-02-27 | ||
JP6188698 | 1998-02-27 | ||
PCT/JP1999/000946 WO1999043985A1 (en) | 1998-02-27 | 1999-02-26 | Fluidized bed gasification furnace |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1058051A1 EP1058051A1 (en) | 2000-12-06 |
EP1058051A4 EP1058051A4 (en) | 2001-09-19 |
EP1058051B1 true EP1058051B1 (en) | 2005-07-20 |
Family
ID=13184087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99906525A Expired - Lifetime EP1058051B1 (en) | 1998-02-27 | 1999-02-26 | Fluidized bed gasification furnace |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1058051B1 (en) |
CN (1) | CN1239841C (en) |
AU (1) | AU2641999A (en) |
DE (1) | DE69926217T2 (en) |
WO (1) | WO1999043985A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE328051T1 (en) * | 2001-04-19 | 2006-06-15 | Ebara Corp | GASIFICATION APPARATUS AND OPERATING METHOD |
JP2004212032A (en) * | 2002-11-15 | 2004-07-29 | Ebara Corp | Fluidized bed gasification furnace |
JP5694690B2 (en) * | 2010-06-22 | 2015-04-01 | 株式会社神鋼環境ソリューション | Fluidized bed furnace and waste treatment method |
CN102051247A (en) * | 2010-12-11 | 2011-05-11 | 水煤浆气化及煤化工国家工程研究中心 | Assistant for improving viscosity-temperature characteristics of coal |
JP5778069B2 (en) * | 2012-03-30 | 2015-09-16 | 株式会社神鋼環境ソリューション | Fluidized particle feeder for fluidized bed gasifier |
CN109185869B (en) * | 2018-09-05 | 2019-12-20 | 江西黄龙油脂有限公司 | Fluidized boiler with layered combustion chamber |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3397657A (en) * | 1965-11-01 | 1968-08-20 | Tada Mitsuru | Apparatus for continuously burning wastes |
JPS5843318A (en) * | 1981-09-09 | 1983-03-14 | Ebara Corp | Discharging device for fluidized bed incinerator |
JPS59197715A (en) * | 1983-04-25 | 1984-11-09 | Babcock Hitachi Kk | Fluidized-bed incinerator with foreign matter discharge port being sealed |
CA1285375C (en) * | 1986-01-21 | 1991-07-02 | Takahiro Ohshita | Thermal reactor |
JPS6370008A (en) * | 1986-09-10 | 1988-03-30 | Babcock Hitachi Kk | Growing fluid medium discharge system |
-
1999
- 1999-02-26 CN CN 99804459 patent/CN1239841C/en not_active Expired - Fee Related
- 1999-02-26 EP EP99906525A patent/EP1058051B1/en not_active Expired - Lifetime
- 1999-02-26 DE DE69926217T patent/DE69926217T2/en not_active Expired - Lifetime
- 1999-02-26 WO PCT/JP1999/000946 patent/WO1999043985A1/en active IP Right Grant
- 1999-02-26 AU AU26419/99A patent/AU2641999A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE69926217D1 (en) | 2005-08-25 |
DE69926217T2 (en) | 2006-04-20 |
WO1999043985A1 (en) | 1999-09-02 |
AU2641999A (en) | 1999-09-15 |
CN1239841C (en) | 2006-02-01 |
EP1058051A1 (en) | 2000-12-06 |
CN1295661A (en) | 2001-05-16 |
EP1058051A4 (en) | 2001-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4941779A (en) | Compartmented gas injection device | |
EP0348007B1 (en) | Aerated discharge device | |
US4165717A (en) | Process for burning carbonaceous materials | |
JP6122793B2 (en) | Upright gasifier | |
RU2594410C2 (en) | Improved plasma gasifiers for production of synthetic gas | |
KR102203125B1 (en) | Second stage gasifier in staged gasification | |
AU2009256101B2 (en) | Fluidized bed gasifier with solids discharge and classification device | |
US5129766A (en) | Aeration tube discharge control device | |
CN101668833B (en) | Device for producing a product gas from a fuel, such as biomass | |
US20130312328A1 (en) | Method and apparatus for particle recycling in multiphase chemical reactors | |
US20100199557A1 (en) | Plasma gasification reactor | |
CN101977675B (en) | Method and device for metered removal of a fine-grained to coarse-grained solid material or solid material mixture from a storage container | |
CA2751859C (en) | Plasma gasification reactor | |
RU2607662C2 (en) | Method and device for gasification of solid combustible materials under pressure in stationary layer | |
EP1058051B1 (en) | Fluidized bed gasification furnace | |
JP5450800B2 (en) | Coal pyrolysis gasification method and coal pyrolysis gasification device | |
JPH0233030A (en) | Discharge controller for ventilating pipe | |
JP4660874B2 (en) | Operation control method for waste two-stage gasification system | |
EP0308024B1 (en) | Compartmented gas injection device | |
JP2004212032A (en) | Fluidized bed gasification furnace | |
US4934876A (en) | Aeration apparatus for discharge control of particulate matter | |
US9222038B2 (en) | Plasma gasification reactor | |
US20100199556A1 (en) | Plasma gasification reactor | |
JP2000319670A (en) | Two-stage waste gasification system | |
JP2000514498A (en) | Gasification means and process and apparatus for filling sponge iron into a melt gasifier |
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: 20000829 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20010806 |
|
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): DE FR GB IT |
|
17Q | First examination report despatched |
Effective date: 20030711 |
|
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 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: 7F 23G 5/027 B Ipc: 7F 23G 5/30 B Ipc: 7F 23C 10/00 A |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 69926217 Country of ref document: DE Date of ref document: 20050825 Kind code of ref document: P |
|
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 |
Effective date: 20060421 |
|
EN | Fr: translation not filed | ||
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060915 |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050720 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20100220 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20100202 Year of fee payment: 12 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20110226 |
|
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: 20110226 |
|
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: 20110226 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20120222 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69926217 Country of ref document: DE Effective date: 20130903 |
|
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: 20130903 |