EP0809067B1 - Procédé de réduction, par recombustion des oxydes d'azote contenus dans les fumées issues d'une combustion primaire réalisée dans un four, et installation pour sa mise en oeuvre. - Google Patents
Procédé de réduction, par recombustion des oxydes d'azote contenus dans les fumées issues d'une combustion primaire réalisée dans un four, et installation pour sa mise en oeuvre. Download PDFInfo
- Publication number
- EP0809067B1 EP0809067B1 EP97400984A EP97400984A EP0809067B1 EP 0809067 B1 EP0809067 B1 EP 0809067B1 EP 97400984 A EP97400984 A EP 97400984A EP 97400984 A EP97400984 A EP 97400984A EP 0809067 B1 EP0809067 B1 EP 0809067B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zone
- fuel
- recombustion
- pressure
- combustion
- 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
- F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
- F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
- F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
- F23C6/047—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure with fuel supply in stages
-
- 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
- F23C2201/00—Staged combustion
- F23C2201/10—Furnace staging
- F23C2201/101—Furnace staging in vertical direction, e.g. alternating lean and rich zones
Definitions
- the invention relates to a reduction method by recombustion, nitrogen oxides contained in the fumes from primary combustion produced in an oven, as well as an installation for the implementation of this process.
- This process consists of injecting a hydrocarbon according to very precise operating conditions, downstream of a first combustion during which the oxides nitrogen are produced.
- the injection of this hydrocarbon has aim of creating a reducing atmosphere which has for consequence, when the temperature is sufficiently high (generally above 1000 ° C), cracking components of the hydrocarbon and produce radicals (CH °, H °, ..) which will combine with the monoxide nitrogen and other precursors of nitrogen oxides from main combustion (first combustion) by complex chemical transformations to form molecular nitrogen and oxygen.
- the area in which the injection of this hydrocarbon is carried out is called the recombustion or overcombustion zone reductive.
- the unburnt products formed in the overcombustion zone reductive are then oxidized in a third step called post-combustion.
- the hydrocarbon that will supply the radicals necessary for the destruction of oxides nitrogen, is thus used both as a reactive agent of pollution and as energy.
- the effectiveness of a recombination process depends on many factors such as temperature, time of stay in the recombustion zone, nature and mode injection of oil, the amount of oil injected, the initial nitrogen oxides rate, etc.
- the reduction efficiency rate nitrogen oxides is the ratio of the number of moles of nitrogen oxides destroyed by the recombustion / number of moles of nitrogen oxides before recombustion.
- the object of the present invention is to overcome the previous disadvantages in ensuring a better fuel penetration and distribution in the recombustion zone and thus obtain rates of reduction of satisfactory nitrogen oxides even when the dimensions of the oven did not allow a good mixture fuel and fumes, as in the process of prior art.
- the invention proposes a process for the reduction of nitrogen oxides contained in fumes from primary combustion in an oven, by recombination of said fumes characterized by a fuel injection in the combustion zone of said oven following at least two jets associated with pressure relatively high and relatively low respectively so that the high pressure jet entrains part of the fuel injected at low pressure.
- the jet of fuel low pressure is externally concentric with the jet of higher pressure fuel.
- the fuel is a gas at a pressure between a few millibars and a few hundred millibars for the low jet pressure and between a few hundred millibars and a few bars for the high pressure jet.
- the pressure and the flow rates of the gases of the two aforementioned jets are controlled so as to adapt to the dimensions of the recombination zone and to the characteristics of the fumes.
- furnace's recombustion zone is subjected to acoustic waves.
- the aforementioned acoustic waves have a frequency below about 20 Hz.
- the invention also provides an installation for the implementation of the method described above comprising a oven equipped with a primary combustion zone supplied by a main fuel and followed by a zone of recombustion powered by a secondary fuel, characterized in that said recombustion zone is fitted with at least two secondary fuel inlets to a relatively high pressure and a relatively low pressure respectively so that the high pressure jet drives part of the fuel injected at low pressure.
- the two aforementioned entries are coaxial.
- the two aforementioned entries are respectively fitted with a flow control device and the pressure of the secondary fuel forming the two aforementioned jets.
- the installation according to the invention has a generator of acoustic waves mounted on the wall of the oven so as to ability to homogenize the mixture in the recombustion.
- the temperature is sufficient to crack the radicals which will react with nitrogen oxides to give molecular nitrogen and oxygen.
- hydrocarbon used as quickly as possible dispersed and cracked. In otherwise, the hydrocarbon (fuel) will burn with the residual oxygen from the fumes from the main combustion and, create nitrogen oxides which is contrary to the aim sought.
- the homogenization of the mixture is all the more delicate when get the dimensions of the oven important and that the volume of fuel injected represents only about 1% of the volume of combustion fumes main.
- the homogenization of the fuel mixture and smoke is often limited by the residence time of the fuel-smoke mixture in the combustion zone. Indeed, this residence time is limited by the oven dimensions which are most often limited in height.
- FIG. 1 a combustion furnace for setting up implementation of the nitrogen oxides reduction process according to the invention is illustrated in FIG. 1.
- This oven comprises the three combustion zones mentioned above, i.e. a first main combustion zone A, a second recombination zone B and a third zone C of post-combustion. Above the post-combustion zone, there is a gas cooling zone D.
- Main combustion zone A has orifices supply 3 of a mixture of a so-called fuel primary fuel and air.
- Primary fuel can be of any kind: coal, fuel oil, waste, wood, natural gas, etc ...
- the primary fuel will be natural gas.
- the ventilation rate of this main combustion zone that is, the ratio of the actual air volume of combustion on theoretical combustion air (combustion stoichiometric) generally varies in the range of 1.05 to 1.1.
- the nitrogen oxides contained in the fumes from this primary combustion are then reduced in the Reduction or overcombustion zone B.
- the reduction of nitrogen oxides is achieved through the injection of a fuel called secondary fuel by the power supply marked 2 in FIG. 1.
- the secondary fuel is injected through inlet 2 in one volume representing 10 to 20% of the fuel volume primary, in order to obtain a ventilation rate close to 0.9 in zone B.
- the reducing atmosphere in default oxygen is created in the recombination zone.
- Secondary fuel used for recombination injected into the reducing zone B can, like the primary fuel, being of any kind: coal, fuel oil, waste, wood, natural gas, etc. However, according to In the invention, natural gas is preferably used.
- the oxidation stage of unburnt materials is called the post-combustion stage, is then performed.
- the post-combustion stage is carried out thanks to the introduction, by the inlet marked 1 in FIG. 1, of air to complete the combustion.
- fuel injection secondary, preferably natural gas, in the area of recombustion B must be within a range of temperature between 1100 and 1500 ° C and it must be performed at a flow and pressure corresponding to sufficient residence time in the recombination zone to allow homogenization of mixtures fuel-smoke satisfactory as well as to allow reduction reactions to occur.
- Time to stay should generally be in the range of 0.5 to 1 second according to the operating conditions.
- the reduction temperature used for the recombustion, in the recombustion zone B, can be lowered to around 1000 ° C but it is then necessary to increase the residence time.
- a balance must therefore be found between the parameters residence time-temperature, in order to obtain a satisfactory homogenization between the fuel secondary used in zone B of recombustion and fumes from primary combustion zone A or main containing nitrogen oxides to reduce.
- the secondary fuel behaves like a jet in a transverse flow and the homogenization of a mixing a jet (secondary fuel) in a stream transverse (fumes from primary combustion) is subject to antagonistic constraints, all the more difficult as the flow rate of the jet on the wall of the furnace is weak compared to cross flow main.
- the present invention consists of injecting the secondary fuel, preferably natural gas, through a multiple pulse system. More specifically, in the installation illustrated in Figure 1, the fuel secondary is injected by a double pulse system in the recombustion zone.
- the double pulse injection according to the invention has two gas supply circuits 2, 2 ', one circuit low pressure supply 2, adjusted and controlled by any suitable means noted 4 in Figure 1, and a high pressure gas supply circuit 2 'set and controlled by any suitable means noted 5 in Figure 1.
- the double impulse improves the penetration of the jet of secondary fuel to the center of the furnace and also to distribute this fuel throughout the oven enclosure.
- the high pressure central jet also causes part of the fuel injected into lower pressure, which also improves its mixed.
- This double pulse of gaseous fuel can be easily adjusted, variations in flow and gas fuel pressures are very easy to be carried out to optimize the mixture, that is to say so as to adapt to the dimensions of the recombustion, smoke characteristics, and reduction rates sought.
- the two secondary fuel inlets 2, 2 ' are coaxial and the low pressure fuel input is externally concentric with the fuel inlet at high pressure.
- the invention is therefore particularly advantageous in cases in which the dimensions of the oven do not not allow proper fuel mixing in smoke, in particular.
- the invention also makes it possible, by improving the mixing, reduce the amount of secondary fuel to inject to obtain a given rate of reduction of nitrogen oxides.
- the levels of reduction of nitrogen obtained are of the order of 50 to 60% in moles, by substituting, for coal, 20% in intake energy from natural gas.
- a generator infrasound noted 6 in Figure 1 attached is mounted on one of the walls of the combustion furnace at the level of the zone B of recombustion.
- the rate of reduction of nitrogen oxides contained in the fumes from primary combustion is generally greater than 80%, more precisely in the meantime from about 80 to about 90%, in moles.
- the process of reduction of nitrogen oxides by recombination of fumes from primary combustion therefore achieves an efficiency NOx reduction of around 70 to 80% by performing injection of secondary fuel, preferably natural gas, in the combustion zone, according to minus two jets associated with relatively high pressure and relatively low respectively so that the high pressure jet causes part of the fuel injected at low pressure.
- secondary fuel preferably natural gas
- the low pressure fuel jet is externally concentric with the fuel jet at higher pressure, which improves the secondary fuel penetration to the center of the oven thanks to the high pressure jet and also to distribute gases throughout the enclosure.
- the central jet at high pressure causing part of the gas injected to lower pressure, the secondary fuel mixture gaseous with fumes from primary combustion containing the nitrogen oxide to be reduced is thus improved.
- the gaseous fuel is injected for the low pressure jet at a pressure between a few millibars and a few hundred millibars and for the high pressure jet, between a few hundred millibars and a few bars.
- the acoustic waves used have a frequency less than about 20 Hz.
- the use of injection multiple pulse and infrasound production in the nitrogen oxides recombination process allows achieve NOx reduction efficiency rates of around 50% but using less fuel. For example, reducing the amount of fuel secondary is around 50% by volume, which allows reduce the cost of the process.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Description
- une première étape dite de combustion principale ou primaire effectuée dans une première zone d'un four de combustion, dite zone de combustion principale ou primaire. Cette étape correspond à l'étape proprement dite de combustion des combustibles, étape au cours de laquelle les oxydes d'azote se forment et sont entraínés dans les fumées;
- une deuxième étape dite de recombustion ou de surcombustion réductrice effectuée dans une deuxième zone, dite zone de recombustion ou de surcombustion réductrice, du four de combustion lui-même.
- une troisième étape dite de post-combustion effectuée dans une troisième zone du four de combustion en aval de la zone de recombustion, consistant à injecter de l'air dans cette troisième zone pour achever la combustion.
Claims (10)
- Procédé de réduction des oxydes d'azote contenus dans les fumées issues d'une combustion primaire, dans un four, par recombustion desdites fumées caractérisé par une injection d'un combustible secondaire dans la zone de recombustion dudit four suivant au moins deux jets associés à pression relativement haute et relativement basse respectivement de façon que le jet à haute pression entraíne une partie du combustible injecté à basse pression.
- Procédé selon la revendication 1, caractérisé en ce que le jet de combustible basse pression est extérieurement concentrique au jet de combustible à pression plus élevée.
- Procédé selon la revendication 1 ou 2, caractérisé en ce que le combustible est un gaz à une pression comprise entre quelques millibars et quelques centaines de millibars pour le jet basse pression et entre quelques centaines de millibars et quelques bars pour le jet haute pression.
- Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la pression et les débits du gaz des deux jets précités sont commandés de façon à s'adapter aux dimensions de la zone de recombustion et aux caractéristiques des fumées.
- Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la zone de recombustion du four est soumise à des ondes acoustiques.
- Procédé selon la revendication 5, caractérisé en ce que les ondes acoustiques précitées ont une fréquence inférieure à environ 20 Hz.
- Installation pour la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 6, comprenant un four comprenant une zone de combustion primaire (A) alimentée par un combustible principal et suivie par une zone de recombustion (B) alimentée par un combustible secondaire, caractérisée en ce que ladite zone de recombustion est munie d'au moins deux entrées (2, 2') de combustible secondaire à une pression relativement haute et à une pression relativement basse respectivement de façon que le jet à haute pression entraíne une partie du combustible injecté à basse pression.
- Installation selon la revendication 7, caractérisée en ce que les deux entrées (2, 2') précitées sont coaxiales.
- Installation selon la revendication 7 ou la revendication 8, caractérisée en ce que les deux entrées précitées sont respectivement munies d'un appareil de commande du débit et de la pression (4, 5) du combustible secondaire formant les deux jets précités.
- Installation selon l'une quelconque des revendications 7 à 9, caractérisée en ce qu'un générateur d'ondes acoustiques (6) est monté sur la paroi du four de façon à pouvoir homogénéiser le mélange dans la zone de recombustion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI9730090T SI0809067T1 (en) | 1996-05-21 | 1997-04-30 | Process and installation for reducing by recombustion of nitric oxides in exhaust gases from a primary combustion in a furnace |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9606293A FR2749066B1 (fr) | 1996-05-21 | 1996-05-21 | Procede de reduction, par recombustion, des oxydes d'azote contenus dans les fumees issues d'une combustion primaire realisee dans un four, et installation pour sa mise en oeuvre |
FR9606293 | 1996-05-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0809067A1 EP0809067A1 (fr) | 1997-11-26 |
EP0809067B1 true EP0809067B1 (fr) | 2000-08-30 |
Family
ID=9492315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97400984A Expired - Lifetime EP0809067B1 (fr) | 1996-05-21 | 1997-04-30 | Procédé de réduction, par recombustion des oxydes d'azote contenus dans les fumées issues d'une combustion primaire réalisée dans un four, et installation pour sa mise en oeuvre. |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0809067B1 (fr) |
AT (1) | ATE195999T1 (fr) |
CZ (1) | CZ135297A3 (fr) |
DE (1) | DE69702950T2 (fr) |
ES (1) | ES2152070T3 (fr) |
FR (1) | FR2749066B1 (fr) |
HU (1) | HUP9700845A1 (fr) |
PL (1) | PL320054A1 (fr) |
PT (1) | PT809067E (fr) |
SI (1) | SI0809067T1 (fr) |
SK (1) | SK55397A3 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5908003A (en) * | 1996-08-15 | 1999-06-01 | Gas Research Institute | Nitrogen oxide reduction by gaseous fuel injection in low temperature, overall fuel-lean flue gas |
FR2834774B1 (fr) * | 2002-01-16 | 2004-06-04 | Saint Gobain Emballage | BRULEUR ET PROCEDE POUR LA REDUCTION DE L'EMISSION DES NOx DANS UN FOUR DE VERRERIE |
NL2001797C2 (nl) * | 2008-07-14 | 2010-01-18 | Essent En Produktie B V | Werkwijze voor het verbranden van een tweede vaste brandstof in combinatie met een eerste vaste brandstof. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59173605A (ja) * | 1983-03-23 | 1984-10-01 | Hitachi Zosen Corp | 燃焼炉における粉体燃料の均一供給方法 |
DE3410945A1 (de) * | 1984-03-24 | 1985-10-03 | Steag Ag, 4300 Essen | Verfahren zur verminderung der no(pfeil abwaerts)x(pfeil abwaerts)-bildung in mit kohlenstaub betriebenen feuerungsanlagen, insbesondere schmelzkammerfeuerungen, und feuerungsanlage zur durchfuehrung des verfahrens |
DE3441675A1 (de) * | 1984-11-15 | 1986-05-22 | L. & C. Steinmüller GmbH, 5270 Gummersbach | Verfahren zur verringerung des no(pfeil abwaerts)x(pfeil abwaerts)-gehalts in verbrennungsgasen |
US4779545A (en) * | 1988-02-24 | 1988-10-25 | Consolidated Natural Gas Service Company | Apparatus and method of reducing nitrogen oxide emissions |
IT1247541B (it) * | 1991-05-07 | 1994-12-17 | Ente Naz Energia Elettrica | Processo per ridurre gli ossidi di azoto nei gas di combustione |
US5181475A (en) * | 1992-02-03 | 1993-01-26 | Consolidated Natural Gas Service Company, Inc. | Apparatus and process for control of nitric oxide emissions from combustion devices using vortex rings and the like |
JPH0727313A (ja) * | 1992-08-27 | 1995-01-27 | Tokyo Gas Co Ltd | 高温炉装置 |
-
1996
- 1996-05-21 FR FR9606293A patent/FR2749066B1/fr not_active Expired - Lifetime
-
1997
- 1997-04-30 AT AT97400984T patent/ATE195999T1/de active
- 1997-04-30 DE DE69702950T patent/DE69702950T2/de not_active Expired - Lifetime
- 1997-04-30 PT PT97400984T patent/PT809067E/pt unknown
- 1997-04-30 SI SI9730090T patent/SI0809067T1/xx unknown
- 1997-04-30 EP EP97400984A patent/EP0809067B1/fr not_active Expired - Lifetime
- 1997-04-30 ES ES97400984T patent/ES2152070T3/es not_active Expired - Lifetime
- 1997-05-02 SK SK553-97A patent/SK55397A3/sk unknown
- 1997-05-02 CZ CZ971352A patent/CZ135297A3/cs unknown
- 1997-05-05 HU HU9700845A patent/HUP9700845A1/hu unknown
- 1997-05-19 PL PL97320054A patent/PL320054A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
SK55397A3 (en) | 1998-01-14 |
DE69702950T2 (de) | 2001-03-29 |
PL320054A1 (en) | 1997-11-24 |
CZ135297A3 (en) | 1997-12-17 |
PT809067E (pt) | 2001-02-28 |
DE69702950D1 (de) | 2000-10-05 |
EP0809067A1 (fr) | 1997-11-26 |
SI0809067T1 (en) | 2001-04-30 |
HU9700845D0 (en) | 1997-06-30 |
HUP9700845A1 (hu) | 2000-05-28 |
FR2749066A1 (fr) | 1997-11-28 |
ES2152070T3 (es) | 2001-01-16 |
ATE195999T1 (de) | 2000-09-15 |
FR2749066B1 (fr) | 1998-08-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2153130B1 (fr) | Procede de combustion a bas nox pour la fusion du verre et injecteur mixte | |
EP1144915B1 (fr) | Appareil de type torchere et procede pour la combustion de gaz | |
RU2007115729A (ru) | Узелок горелок с ультранизкой эмиссией nox | |
NO20051955L (no) | Fremgangsmate og apparat for varmebehandling | |
JP2011074917A (ja) | 部分的空気分離を備えた低排出型ガスタービンサイクルを使用するシステム及び方法 | |
FR2488678A1 (fr) | Procede et appareil de combustion pour diminuer sensiblement l'emission de composes de l'azote formes pendant la combustion | |
WO2009101326A2 (fr) | Injecteur gaz a bas nox | |
CN1443275A (zh) | 使燃料和稀释剂均匀以减少燃烧系统中释放物的方法和设备 | |
FR2959298A1 (fr) | Four a flamme et procede de regulation de la combustion dans un four a flamme | |
FR2889579A1 (fr) | Procede de calcination d'un materiau a faible emission de nox | |
EP0053085A1 (fr) | Procédé de nettoyage des surfaces d'une installation, encrassées par des dépôts résultant de la combustion de matières carbonées | |
EP0809067B1 (fr) | Procédé de réduction, par recombustion des oxydes d'azote contenus dans les fumées issues d'une combustion primaire réalisée dans un four, et installation pour sa mise en oeuvre. | |
CN1044516C (zh) | 燃气轮机装置及减少其氧化氮排放量的方法 | |
EP1618334B1 (fr) | Procede de combustion etagee d un combustible liquide et d'un oxydant dans un four | |
US20060246385A1 (en) | NOx emissions reduction process and apparatus | |
US5242295A (en) | Combustion method for simultaneous control of nitrogen oxides and products of incomplete combustion | |
FR2644846A1 (fr) | Dispositif et procede de combustion d'un hydrocarbure a faible teneur en nox, a l'etat sec | |
CN111664461A (zh) | 一种有机废气高效处理系统及方法 | |
KR20110138928A (ko) | 브라운가스 혼합연소를 이용한 플레어 시스템 제어장치 및 제어방법 | |
EP2310745B1 (fr) | Procede et dispositif de traitement thermique d'au moins un effluent comportant des polluants combustibles | |
CA2113108A1 (fr) | Procede d'incineration de dechets organiques | |
CN210107424U (zh) | 一种有机废气高效处理系统 | |
KR100395647B1 (ko) | 연소 장치 및 그 연소 방법 | |
CN117588762A (zh) | 一种低浓度有机废气维持自持燃烧的蓄热式焚烧炉方法 | |
MX2008002067A (es) | Metodos y sistemas para remover mercurio del gas de chimenea de combustion. |
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: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: SI PAYMENT 970529 |
|
17P | Request for examination filed |
Effective date: 19971114 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19991207 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: SI PAYMENT 19970529 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 20000830 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: 20000830 |
|
REF | Corresponds to: |
Ref document number: 195999 Country of ref document: AT Date of ref document: 20000915 Kind code of ref document: T |
|
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: FRENCH |
|
REF | Corresponds to: |
Ref document number: 69702950 Country of ref document: DE Date of ref document: 20001005 |
|
ITF | It: translation for a ep patent filed |
Owner name: DE DOMINICIS & MAYER S.R.L. |
|
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: 20001130 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: 20001130 |
|
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: 20001201 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20001129 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2152070 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: SC4A Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 20001128 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: MC Payment date: 20010323 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IE Payment date: 20010329 Year of fee payment: 5 Ref country code: CH Payment date: 20010329 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010419 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
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 | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
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: 20020430 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020430 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: SI Ref legal event code: IF |
|
REG | Reference to a national code |
Ref country code: SI Ref legal event code: SP73 Owner name: GDF SUEZ SOCIETE ANONYME; FR Effective date: 20090601 |
|
NLT1 | Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1 |
Owner name: GDF SUEZ |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A Owner name: GDF SUEZ Effective date: 20110616 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 69702950 Country of ref document: DE Representative=s name: RECHTS- UND PATENTANWAELTE LORENZ SEIDLER GOSS, DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 69702950 Country of ref document: DE Representative=s name: LORENZ SEIDLER GOSSEL RECHTSANWAELTE PATENTANW, DE Effective date: 20111028 Ref country code: DE Ref legal event code: R082 Ref document number: 69702950 Country of ref document: DE Representative=s name: RECHTS- UND PATENTANWAELTE LORENZ SEIDLER GOSS, DE Effective date: 20111028 Ref country code: DE Ref legal event code: R081 Ref document number: 69702950 Country of ref document: DE Owner name: GDF SUEZ S.A., FR Free format text: FORMER OWNER: GAZ DE FRANCE, PARIS, FR Effective date: 20111028 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: PC Ref document number: 195999 Country of ref document: AT Kind code of ref document: T Owner name: GDF SUEZ, FR Effective date: 20130328 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20160321 Year of fee payment: 20 Ref country code: LU Payment date: 20160324 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20160324 Year of fee payment: 20 Ref country code: BE Payment date: 20160323 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20160321 Year of fee payment: 20 Ref country code: ES Payment date: 20160408 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20160323 Year of fee payment: 20 Ref country code: IT Payment date: 20160324 Year of fee payment: 20 Ref country code: PT Payment date: 20160401 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69702950 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MK Effective date: 20170429 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20170429 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 195999 Country of ref document: AT Kind code of ref document: T Effective date: 20170430 |
|
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 EXPIRATION OF PROTECTION Effective date: 20170429 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20170511 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20180508 |
|
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 EXPIRATION OF PROTECTION Effective date: 20170501 |