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EP1730441B1 - Dispositif et procede pour stabiliser une flamme - Google Patents

Dispositif et procede pour stabiliser une flamme Download PDF

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Publication number
EP1730441B1
EP1730441B1 EP05717130A EP05717130A EP1730441B1 EP 1730441 B1 EP1730441 B1 EP 1730441B1 EP 05717130 A EP05717130 A EP 05717130A EP 05717130 A EP05717130 A EP 05717130A EP 1730441 B1 EP1730441 B1 EP 1730441B1
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EP
European Patent Office
Prior art keywords
air
catalyst
fuel mixture
burner
pilot fuel
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Expired - Lifetime
Application number
EP05717130A
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German (de)
English (en)
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EP1730441A1 (fr
Inventor
Richard Carroni
Thiemo Meeuwissen
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GE Vernova GmbH
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Alstom Technology AG
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Publication of EP1730441A1 publication Critical patent/EP1730441A1/fr
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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 
    • F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/40—Continuous combustion chambers using liquid or gaseous fuel characterised by the use of catalytic means
    • 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 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/13002—Catalytic combustion followed by a homogeneous combustion phase or stabilizing a homogeneous combustion phase

Definitions

  • the invention relates to a device for flame stabilization in a burner, with a burner volume at least partially comprehensive burner housing into which at least one fuel line fuel and at least one air supply means air to form a propagating in a preferred flow direction air / fuel mixture can be introduced which is flammable in a combustion chamber downstream of the burner housing to form a stationary flame. Also described is a method of flame stabilization in a related burner.
  • Modern premix burners of which reference is made to a premix burner with conical burner housing, which in the EP 321 809 B1 are optimized from the point of view of their efficiency and their pollutant emissions.
  • the optimizations performed on the burner systems apply primarily to load ranges in which such burner systems are mainly operated to drive, for example, heat engines, mainly gas or steam turbine plants. Such systems are operated most of the time under full or part load conditions.
  • pilot gas supply through which mostly pilot gas, which experiences no or only a small premix with the supply air, is supplied to the flame via a burner lance arranged centrally in the burner.
  • pilot gas feeds result in so-called pilot flames, which are basically of the diffusion type, even in cases where the premix burner is operated under lean fuel conditions.
  • a further measure for flame stabilization provides for the use of catalysts which are provided in the mixing zone of a premix burner as part of a so-called catalytic pilot and, depending on the air-fuel ratio ⁇ and the oxygen present in the mixture, at least portions of the fuel contained in the air / fuel mixture to oxidize.
  • catalysts which are provided in the mixing zone of a premix burner as part of a so-called catalytic pilot and, depending on the air-fuel ratio ⁇ and the oxygen present in the mixture, at least portions of the fuel contained in the air / fuel mixture to oxidize.
  • a rich air-fuel mixture ie ⁇ ⁇ 1
  • it is possible by using catalytic reactors within the Vormischbrenner Schemees by partial oxidation of the fuel portion to produce so-called syngas, which consists of H 2 and CO and represents a highly reactive gas due to the hydrogen content.
  • a method is in each case removable, in which the partially oxidized by way of catalysis air / fuel mixture is mixed with cooling air to avoid auto-ignition and an associated diffusion flame and ultimately as a hot, lean, CH 4 mixture contained for the purpose of Stabilization to be supplied within the combustion chamber homogeneously forming flame.
  • the invention has for its object to provide an apparatus and a method for flame stabilization of a flame forming downstream of a premix burner such that the measures used for stabilization neither the flame stability, i. can permanently affect the flame site, nor lead to an increased nitrogen oxide emission. Rather, it should be possible to make flame-stabilizing precautions that are largely unrelated to the burner design and do not adversely affect the combustion characteristics optimized by the burner design. Thus, the measures to be taken should contribute to creating increased design flexibility in the design of premix burners and, in addition, to be able to be used on as many different burner systems as possible, without having to consider requirements with regard to special system optimization.
  • a device for flame stabilization in a burner is designed such that upstream of the flame, a catalyst arrangement is provided through which flows from the air / fuel mixture (4) separate air / pilot fuel mixture.
  • the catalyst arrangement has at least two catalyst stages which are arranged one behind the other in the flow direction of the air / fuel mixture forming inside the burner, of which the upstream arranged catalyst stage, the so-called POX catalyst, with an air / pilot fuel mixture is penetrated at a mixing ratio ⁇ ⁇ 1, through which the air / pilot fuel mixture is partially oxidized.
  • the downstream in the flow direction catalyst stage the so-called FOX catalyst is interspersed with a lean air / pilot fuel mixture with a mixing ratio ⁇ > 1, through which the lean air / pilot fuel mixture is completely oxidized to form an inert hot gas stream.
  • the method principle underlying the device according to the invention is based on a flame stabilization with the aid of at least 600 ° C, preferably up to 950 ° C, hot, chemically inert hot gas stream, which is introduced into or adjacent to the flame in the combustion chamber.
  • the hot, unreacted gas thermally stabilizes the homogenized flame forming within the combustion chamber, the inert nature of the hot hot gas components allowing the inert hot gas stream to be supplied anywhere in the burner system in the flame region without compromising flame position and temperature to change associated mixing times or to cause an increase in nitrogen oxide formation.
  • the inventive measure an unprecedented degree of design flexibility is created, which allows the inventively constructed device having a so-called two-stage pilot catalyst to combine with a variety of burner systems, largely without having to take into account optimization requirements that would be connected by special system constraints.
  • the two-stage catalyst arrangement can catalyze a fuel-rich, ie rich air / pilot fuel mixture with an air / pilot fuel ratio ⁇ ⁇ 1 with its first catalyst stage, the POX catalyst such that downstream of the POX catalyst, a partially oxidized air / pilot fuel mixture from the POX catalyst emerges.
  • the partially oxidized air / pilot fuel mixture is mixed with supply air downstream of the POX catalyst to form a lean air / pilot fuel mixture, ie ⁇ > 1, before it enters the FOX catalyst. within which the lean air / pilot fuel mixture is completely oxidized.
  • a hot gas that is very hot and chemically inert due to the exothermic oxidation reactions is formed, which is fed into the region of the combustion chamber in which the flame is formed for targeted thermal flame stabilization.
  • FIG. 1 shown schematic representation shows an inventively designed catalyst assembly 1, which encloses a flow channel 2 through which passes in the illustration from left to right an air flow L.
  • a first catalyst 3 Inside the catalyst arrangement 1, upstream of the flow channel 2 there is provided a first catalyst 3, the so-called POX catalyst, which has a plurality of catalyst channels oriented in the direction of flow, which are coated internally with suitably selected catalyst material and specifically for the catalysis of a rich air / pilot fuel mixture is selected.
  • the POX catalyst 3 is fed upstream of an air / pilot fuel mixture 4, which is composed of a fully mixed fuel flow m POX, fuel and an air flow m POX, air .
  • the air-pilot fuel mixture 4 entering into the POX catalytic converter 3 has an adjustable mixing ratio ⁇ POX as well as a selectively adjustable mixture inlet temperature T POX, in . Since, as already mentioned, the flow channels of the POX catalyst 3 are coated with a catalytic layer of suitable choice, preferably with rhodium or rhodium-containing material compound, and have corresponding flow geometries, any overheating of the channel walls by the catalytically assisted, exothermally acting partial oxidation of the fuel contained in the air-pilot fuel mixture 4 can be avoided.
  • the POX catalytic converter 3 ensures a homogeneously mixed outlet mixture 5 whose temperature T POX, out depends on the one hand on the inlet temperature T POX, in and on the air pilot fuel ratio ⁇ POX .
  • the outlet temperature T POX, out of the outlet mixture 5 is in a range between 600 ° C and 950 ° C, wherein the outlet mixture 5 consists mainly of CH 4 , N 2 , CO 2 and H 2 O.
  • the outlet mixture 5 has only a small proportion of the syngas described above, preferably with volume percentages below 5%.
  • oxygen contents O 2 may be contained in the outlet mixture 5 with a volume percentage of ⁇ 5%.
  • the air / pilot fuel mixture 4 supplied to the POX catalyst 3 has an air / fuel ratio ⁇ POX, typically between 0.15 and 0.4, ie that supplied to the POX catalyst 3 Air pilot fuel mixture is relatively rich in fuel or fat.
  • a predetermined amount of air L flowing around the POX catalytic converter 3 is admixed with the outlet mixture 5, with a specifically adjustable mass flow 6 m bypass and a predefinable air temperature T bypass which is identical to or similar to the inlet temperature T POX, is in the POX catalyst 3 supplied air-pilot fuel mixture 4. Downstream of the POX catalyst 3 thus forms a mixture which is heavily emaciated, typically with an air-pilot fuel ratio 4 ⁇ ⁇ 9.
  • the so emaciated Air pilot fuel mixture 7, with a suitably dimensioned mass flow m FOX, is fed to the so-called downstream FOX catalyst 8 in the flow direction through the catalyst assembly 1, wherein the lean air pilot fuel mixture 7 has a temperature T FOX, in , which is less than T POX, out is.
  • T POX With regard to the temperature T POX, out of the outlet mixture 5, care must be taken that it is low enough to be able to reliably rule out possible auto-ignition during the mixing of the supply air L with the partially oxidized air / pilot fuel mixture 5 emerging from the POX catalytic converter 3. This is assisted by providing a high degree of uniform distribution within the exit mixture 5 by providing corresponding channel guides in the POX catalyst 3, whereby so-called fuel pockets can be excluded. Furthermore, the partial oxidation taking place within the POX catalyst 3 ensures a substantially complete depletion of the mass flow of oxygen.
  • the temperature T FOX in typically moves in the range between 500 ° C and 950 ° C and depends in particular on the temperature T POX, out of the outlet mixture 5 and the amount of supplied bypass air m bypass . T FOX, in should always be greater than the ignition temperature of the FOX catalyst 8, so as to ensure that the lean air-pilot fuel mixture entering the FOX catalyst 8 is completely catalytically oxidized.
  • additional turbulence generating means such as Venturi arrangements or similar devices, may be provided to assist the mixing process.
  • the FOX catalyst 8 is lined innenden with suitable catalyst material, for example. Pd or Pt, by which it can be ensured that the FOX catalyst 8 passing through lean-air pilot fuel mixture. 7 is completely oxidized so that any fuel present in the mixture 7 is converted to CO 2 and H 2 O.
  • the gas mixture m FOX, out leaving the catalyst arrangement 1 thus has a very high temperature, typically T FOX, out up to 950 ° C. and contains mainly CO 2 , H 2 O, O 2 and N 2 . Only very small proportions of CH 4 can also be present, which, however, are unable to impair the chemically inert character of the exit gas 9.
  • the preferably with platinum or paladium innenden lined FOX catalyst 8 is able to achieve the adiabatic process temperatures of the gas mixture passing through the catalyst without succumbing itself material overheating, especially since the FOX catalyst 8 interspersed gas mixture is heavily emaciated and the associated adiabatic temperatures far below the material-specific maximum temperatures are.
  • the catalyst arrangement described above it is possible to produce a hot, inert gas stream and to use for thermal stabilization of a homogenized flame forming within a combustion chamber.
  • the inert nature of the gas stream makes it possible to inject the gas stream at any point of the burner or the combustion chamber, without suffering lasting effects within the forming in the burner mixture formation.
  • the feed of the invention has a hot inert gas stream into the burner area no influence on the auto-ignition behavior and the formation of nitrogen oxides.
  • the inventively proposed thermal stabilization of the homogenized flame within the combustion chamber by the fact that the flame location remains unchanged despite hot gas supply, whereby a flame displacement upstream within the burner is avoided. As a result, the mixing times and the associated nitrogen oxide emission are in no way affected. This provides improved design flexibility compared to previously known and used piloting methods.
  • the catalyst arrangement can be used effectively throughout the entire load range of the burner for firing, for example, a gas turbine plant, ie from start to full load.
  • a gas turbine plant ie from start to full load.
  • the electric preheater can be turned off.
  • FIG. 2 shows a schematic representation of a preferred arrangement possibility of the catalyst assembly 1 within a burner 10, which is preferably designed as a premix burner and the arrow is traversed in the flow direction of an inside of the burner 10 forming air / fuel mixture.
  • a swirling flow D forming in the flow direction forms due to flow-dynamic conditions, for example using a swirl generator, which bursts due to the unsteady flow cross-sectional widening between premix burner 10 and combustion chamber 11 and forms a return flow zone 12, in which a homogeneous flame 13 spatially stationary training.
  • the catalyst arrangement 1 is arranged centrically within the flow ratio in the premix burner 10. For complete mixing of the adjusting within the premix burner air / fuel mixture and to stabilize the flame additional swirl generator or vortex generators 14 are provided which radially surround the catalyst assembly 1.
  • the catalyst assembly 1 it is possible to position the catalyst assembly 1 also to another located within the premix burner 10 area. From the in FIG. 2 illustrated embodiment, it can be seen that the catalyst assembly 1 to form the hot, inert hot gas stream separately to Brenntsoff- / air supply to the burner, a separate air / pilot fuel mixture (4) is supplied. The air-fuel mixture flowing around the catalyst arrangement 1 is ignited in the combustion chamber 11 to form a homogeneous flame 13.
  • FIG. 3 Another possibility of using the inventively designed catalyst assembly 1 is shown.
  • the catalyst arrangement 1, as described in detail from the above FIG. 1 can be seen as a first burner stage is used within a two-stage burner assembly.
  • the catalyst stage 1 is thereby penetrated by the entire air / fuel mixture, which is passed through the burner assembly, and forms downstream of the catalyst assembly 1, a chemically inert hot gas 9, which is fed directly to a second burner stage 15, in the inert chemical hot gas additional fuel and bypass air is added.
  • the hot gas / fuel mixture which forms in this case ultimately ignites in the form of a homogeneous flame 13 downstream of the second burner stage 15.
  • a preferred embodiment for a possible design of the POX catalytic converter 3 provides a plurality of flow channels passing through the catalytic converter 3, which can be divided into two groups.
  • the air / pilot fuel mixture 4 is passed through a first group of flow channels which are coated with catalyst material, for example with rodium.
  • catalyst material for example with rodium.
  • the advantage of such an embodiment lies in an improved mixing of the outlet flows and also allows better control over the POX catalyst temperature T POX , especially since the flow rates of both flow components are set separately variable can be and the supply air for a targeted cooling of the POX catalyst 3 is used.
  • FIG. 4 is a comparable to FIG. 1
  • the generation of a highly reactive syngas containing hot gas could be particularly advantageous for difficult operating situations during the switching of the burner and under very low load conditions.
  • no supply air L, ie m bypass 0, admixed.
  • exiting from the POX catalyst 3 exit mixture 5 undergoes no emaciation.
  • the air / pilot fuel ratio supplied to the POX catalyst 3 is typically selected to promote syngas generation.
  • the air / pilot fuel ratio ⁇ is POX values> 0.25.
  • the problem with such an operating mode is the switching from the above-described syngas generating mode to the standard scenario according to the invention, in which only hot inert gases are formed with the aid of the catalyst arrangement.
  • the air / pilot fuel ratio ⁇ POX of the air / pilot fuel mixture 4 fed to the POX catalyst 3 is reduced to values ⁇ 0.15 by either increasing the mass flow m POX, fuel or reducing the air flow m POX, air .
  • the thereby resulting fatter, entering the POX catalyst 3 air / pilot fuel mixture 4 has a lower adiabatic temperature at which no syngas production comes about.
  • the exit temperature T POX, out drops to values between 500 ° C and 700 ° C.
  • the inlet temperature T FOX drops far below values of the outlet temperature T POX, out and assumes temperatures of much less than 600 ° C.
  • the amount of m bypass is then continuously increased so that the air / pilot fuel ratio of the mixture entering the FOX catalyst 8 is 7 ⁇ FOX, in ⁇ 1, and also ⁇ POX, can also be increased until the full load range is reached and the catalyst assembly produces only chemically inert hot gases.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)

Claims (13)

  1. Dispositif destiné à être placé dans un brûleur (10), qui présente un boîtier de brûleur qui entoure au moins en partie un volume de brûleur et dans lequel du combustible et de l'air peuvent être amenés au moyen d'au moins un moyen d'amenée d'air pour former un mélange d'air et de combustible qui se propage dans une direction préférentielle d'écoulement et qui peut être allumé en formant une flamme stationnaire (13) dans une chambre de combustion (11) qui se raccorde en aval au boîtier de brûleur, un système de catalyseur (1) étant prévu en amont de la flamme (13) et pouvant être traversé par un mélange (4) d'air et de combustible pilote séparé du mélange d'air et de combustible, le mélange (4) d'air et de combustible pilote apporté au système de catalyseur (1) pouvant être amené séparément du mélange d'air et de combustible qui se forme à l'intérieur du volume de brûleur et qui est allumé dans la chambre de combustion (11), caractérisé en ce que le système de catalyseur (1) présente au moins deux étages de catalyseur qui sont disposés l'un derrière l'autre dans la direction de traversée et parmi lesquels l'étage de catalyseur (3) disposé en amont et appelé catalyseur POX peut être traversé par un mélange d'air et de combustible pilote à un rapport de mélange d'air et de combustible pilote λ < 1 qui oxyde partiellement le mélange (4) d'air et de combustible pilote, l'étage de catalyseur (8) situé en aval, appelé catalyseur FOX, pouvant être traversé par un mélange (7) d'air et de combustible pilote appauvri, dont le rapport de mélange λ > 1, le mélange appauvri du combustible pilote et d'air étant complètement oxydé en formant un écoulement inerte (9) de gaz chaud.
  2. Dispositif selon la revendication 1, caractérisé en ce qu'entre le catalyseur POX et le catalyseur FOX (3, 8) est prévue une amenée d'air (L) par laquelle l'air amené est mélangé au mélange (5) d'air et de combustible pilote partiellement oxydé qui sort du catalyseur POX (3), de telle sorte que le mélange (7) appauvri d'air et de combustible pilote se forme avant de pénétrer dans le catalyseur FOX (8).
  3. Dispositif selon les revendications 1 ou 2, caractérisé en ce qu'il présente des moyens (14) qui forment des turbulences d'écoulement en amont du catalyseur FOX (8) et qui servent à assurer un mélange intime du mélange appauvri (4) d'air et de combustible pilote.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le brûleur est un brûleur à prémélange.
  5. Dispositif selon la revendication 4, caractérisé en ce que le brûleur à prémélange (10) présente un boîtier de brûleur à prémélange qui s'évase de préférence coniquement dans la direction d'écoulement et auquel la chambre de combustion (11) se raccorde par un tube de mélange, directement ou indirectement dans la direction d'écoulement, et en ce que le système de catalyseur (1) est prévu à l'intérieur du volume de brûleur incorporé dans le brûleur à prémélange (10) ou le tube de mélange.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce qu'une amenée de combustible qui présente de préférence la forme d'un mélange d'air et de combustible et dans laquelle le combustible peut être mélangé à l'écoulement de gaz chaud inerte qui sort du système de catalyseur (1), est prévue indirectement ou directement en aval du système de catalyseur (1) ou encore en parallèle à ce dernier.
  7. Dispositif de stabilisation de la flamme d'un brûleur (10) qui présente un boîtier de brûleur qui entoure au moins en partie un volume de brûleur dans lequel du combustible peut être apporté par au moins un conduit de combustible et dans lequel de l'air peut être apporté par au moins un moyen d'amenée d'air pour former un mélange d'air et de combustible qui se propage dans une direction préférentielle d'écoulement, ce mélange s'allumant en formant une flamme stationnaire dans une chambre de combustion (11) qui se raccorde au boîtier du brûleur en aval de ce dernier, la flamme (13) étant stabilisée par un écoulement (9) de gaz chaud inerte à une température d'au moins 600 °C qui est amené dans ou au voisinage de la flamme (13) dans la chambre de combustion (11), l'écoulement (9) de gaz chaud inerte étant obtenu par oxydation catalytique d'un mélange d'air et de combustible pilote, caractérisé en ce que l'oxydation catalytique s'effectue en deux étages séparés, à savoir dans un premier étage appelé catalyseur POX (3) dans lequel un mélange (4) d'air et de combustible pilote est oxydé partiellement à un rapport de mélange λ < 1, est ensuite appauvri par addition d'air (L) et est amené sous la forme d'un mélange appauvri (7) d'air et de combustible pilote à un rapport de mélange λ > 1 à un deuxième étage appelé catalyseur FOX (8), le mélange appauvri (7) d'air et de combustible pilote étant complètement oxydé et sortant sous la forme d'un gaz chaud inerte (9).
  8. Procédé selon la revendication 7, caractérisé en ce que le mélange (4) d'air et de combustible pilote est formé et amené pour former l'écoulement (9) de gaz chaud inerte séparément au mélange d'air et de combustible qui se forme à l'intérieur du volume de brûleur et qui est amené à s'allumer à l'intérieur de la chambre de combustion.
  9. Procédé selon les revendications 7 ou 8, caractérisé en ce que le mélange (4) d'air et de combustible pilote qui pénètre dans le catalyseur POX (3) présente un rapport λ entre l'air et le combustible pilote de 0,15 ≤λ≤ 0,4 et en ce que le mélange (5) d'air et de combustible pilote partiellement oxydé qui sort directement du catalyseur POX contient du CH4, du N2, du CO2, de l'H2O ainsi qu'une proportion de gaz de synthèse, c'est-à-dire de H2 et CO, inférieure à 5 % en volume et une proportion d'O2 inférieure à 5 % en volume.
  10. Procédé selon l'une des revendications 7 à 9, caractérisé en ce que l'écoulement (9) de gaz chaud inerte a une température comprise entre 600 et 950 °C et est constitué presque complètement de CO2, de H2O, d'O2 et de N2.
  11. Procédé selon l'une des revendications 7 à 10, caractérisé en ce que la totalité du mélange d'air et de combustible qui se forme à l'intérieur du volume du brûleur est catalysé pour former l'écoulement de gaz inerte chaud (9), est ensuite mélangé avec le combustible et est amené à s'allumer à l'intérieur de la chambre de combustion (11) pour former la flamme (13).
  12. Utilisation du dispositif selon l'une des revendications 1 à 6 pour stabiliser la flamme (13) homogène qui se forme à l'intérieur d'une chambre de combustion (11) alimentée par un brûleur (10), caractérisé en ce qu'en fonction de la charge du brûleur, la flamme (13) est stabilisée thermiquement en lui apportant exclusivement un gaz chaud inerte (9) ou chimiquement en lui apportant un gaz chaud qui contient du gaz de synthèse constitué de H2 et CO.
  13. Utilisation selon la revendication 12, caractérisé en ce que dans les conditions de démarrage ou les conditions de faible charge, la flamme (13) est stabilisée chimiquement sans appauvrissement en apportant au catalyseur FOX (8) le mélange (5) d'air et de combustible pilote partiellement oxydé qui sort du catalyseur POX (3) et en ce que dans les conditions normales ou de forte charge, la flamme (13) est stabilisée thermiquement en appauvrissant avant son entrée dans le catalyseur FOX (8) le mélange (5) d'air et de combustible pilote partiellement oxydé qui sort du catalyseur POX (3).
EP05717130A 2004-03-30 2005-03-23 Dispositif et procede pour stabiliser une flamme Expired - Lifetime EP1730441B1 (fr)

Applications Claiming Priority (2)

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DE102004015607 2004-03-30
PCT/EP2005/051333 WO2005095855A1 (fr) 2004-03-30 2005-03-23 Dispositif et procede pour stabiliser une flamme

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EP1730441A1 EP1730441A1 (fr) 2006-12-13
EP1730441B1 true EP1730441B1 (fr) 2008-03-19

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US (1) US7467942B2 (fr)
EP (1) EP1730441B1 (fr)
AT (1) ATE389852T1 (fr)
CA (1) CA2561255A1 (fr)
DE (1) DE502005003324D1 (fr)
WO (1) WO2005095855A1 (fr)

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EP2080952A1 (fr) * 2008-01-17 2009-07-22 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Brûleur et procédé pour alterner une oxycombustion et une combustion à l'air
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US20070042301A1 (en) 2007-02-22
EP1730441A1 (fr) 2006-12-13
US7467942B2 (en) 2008-12-23
CA2561255A1 (fr) 2005-10-13
WO2005095855A1 (fr) 2005-10-13
DE502005003324D1 (de) 2008-04-30

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