CN101415993A - Integration of oxy-fuel and air-fuel combustion - Google Patents

Integration of oxy-fuel and air-fuel combustion Download PDF

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Publication number
CN101415993A
CN101415993A CNA2007800116487A CN200780011648A CN101415993A CN 101415993 A CN101415993 A CN 101415993A CN A2007800116487 A CNA2007800116487 A CN A2007800116487A CN 200780011648 A CN200780011648 A CN 200780011648A CN 101415993 A CN101415993 A CN 101415993A
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CN
China
Prior art keywords
fuel
burner
oxidant
stove
supply
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Pending
Application number
CNA2007800116487A
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Chinese (zh)
Inventor
L·J·罗森
M·F·赖利
C·L·贝梅尔
H·科巴亚施
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Praxair Technology Inc
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Praxair Technology Inc
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Publication of CN101415993A publication Critical patent/CN101415993A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007—Supplying oxygen or oxygen-enriched air
    • 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 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235—Heating the glass
    • C03B5/2353—Heating the glass by combustion with pure oxygen or oxygen-enriched air, e.g. using oxy-fuel burners or oxygen lances
    • 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 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/02—Disposition of air supply not passing through burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/32—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2211/00—Heating processes for glass melting in glass melting furnaces
    • C03B2211/40—Heating processes for glass melting in glass melting furnaces using oxy-fuel burners
    • C03B2211/60—Heating processes for glass melting in glass melting furnaces using oxy-fuel burners oxy-fuel burner construction
    • 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
    • F23C2900/07021—Details of lances
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping

Abstract

A furnace is heated by a burner that can be selectively operated by either air-fuel or oxy-fuel combustion. The burner comprises a conduit for fuel, a conduit for air, a conduit for oxidant, and control means for regulating flow through the air and oxidant conduits. An air-fuel fired furnace can be modified by addition of the oxidant and fuel conduits and the control means for regulating flow through air and oxidant conduits.

Description

The integration of oxygenated fuel and air fuel burning
Technical field
The present invention relates to the burning of fuel in the stove, particularly when material is retained in the stove or passes through stove, in stove, be used for heat solid and fluent material and/or melting solid material.
Background technology
Many industrial technologies need heating material to arrive very high temperature, general 1000 ℉ or higher.Many examples are arranged, and except being included in the heating of steel rolling mill first being processed or heating iron and steel again, and the fusing material of making glass to be forming glass melt, and forms glassware by it.
In many this application, on the material that heat is applied to be placed in the stove, or by on the material that passes through.In the one or more burners of fuel combustion, by obtaining heat in the stove internal combustion with the generation combustion heat.
In many stoves, one or more burners make fuel and air burning, and it comprises the oxygen that is used to burn certainly.The term of this burning is " air fuel burning ", and the term of the burner of generation air fuel burning is " air-fuel burner ".In other many application, one or more burners make fuel and comprise the gaseous oxidizer burning higher than oxygen concentration in the air, according to using and other factors, for example (and being not limited to) is economical, the higher temperature (term " oxygenated fuel burning ") that burning takes place, with the chance that produces the less amount nitrogen oxide, the concentration range of gaseous oxidizer that comprises oxygen is from 25vol.% to 99vol.%.The oxygenated fuel burning often need utilize burner (term " oxygenated fuel burner "), and it is suitable for the oxygenated fuel burning, particularly can bear in the oxygenated fuel burning with their performance and obtain higher ignition temperature.
Some applications attempt use air fuel burning and oxygenated fuel to burn both.An example occurs in the iron and steel reheater, parts (the flat board of iron and steel wherein, steel billet or base substrate) pass through stove, the heat heating that at first provides by one or more air-fuel burner of parts therein, and (in it continues passage at it by stove time) provides heat by one or more oxygenated fuel burners then.In addition, in some industrial heating processes, the advantage pilot operationp person of oxygenated fuel burning removes air-fuel burner and replaces them with the oxygenated fuel burner, or increases the other zone that the oxygenated fuel burner is formed.
Yet, this has kept needs can be selectively and replacedly obtain the advantage that air fuel burning and oxygenated fuel are burnt, and need not bear the expense and the loss of time, these loss meetings are removed air-fuel burner repeatedly, usefulness oxygenated fuel burner is replaced them, replace the oxygenated fuel burner with air-fuel burner then, and repeat continuously that this circulation time runs into.
Summary of the invention
On the one hand, the present invention is a combustion apparatus, comprising:
(a) stove surrounds the combustion zone, and has at least one burner by the furnace wall, and air is sent into by air duct, and fuel is by send into burner combustion combustion zone in of burner fuel pipeline from stove outside;
(b) oxidant conduit can be sent into oxidant in the stove outside stove by this pipeline; With
(c) control device is regulated the oxidant flow of passing through oxidant conduit and the air that passes through air duct flowed, so air stream can be controlled with respect to the ratio of oxidant stream;
Wherein oxidant conduit and burner fuel pipeline are located relative to each other, so that oxidant conduit enters the oxidant Mixed Zone of combustion zone with the oxidant supply, and the burner fuel pipeline with the fuel supply enter in the combustion zone from the isolated fuel reaction zone in oxidant Mixed Zone.
Another aspect of the present invention is a burner apparatus, comprising:
(a) burner, air is sent into burner combustion by air duct, fuel by the burner fuel pipeline;
(b) oxidant conduit can be sent oxidant into burner by this oxidant conduit; With
(c) control device is regulated the oxidant flow of passing through oxidant conduit and the air that passes through air duct flowed, so air stream can be controlled with the ratio of oxidant stream;
Wherein oxidant conduit and burner fuel pipeline are located relative to each other, so that oxidant conduit enters the oxidant Mixed Zone of combustion zone with the oxidant supply, and the burner fuel pipeline with the fuel supply enter the combustion zone from the isolated fuel reaction zone in oxidant Mixed Zone.
Another aspect of the present invention is the method that is used to improve the air ignition furnace, comprising:
(a) provide a kind of stove, surround the combustion zone, and have at least one burner by the furnace wall, air is sent into burner combustion in the combustion zone by air duct and fuel by the burner fuel pipeline outside stove;
(b) provide oxidant conduit, oxidant can be sent into stove outside stove by this pipeline;
(c) provide control device, regulate oxidant flow by oxidant conduit and the air by air duct and flow, so air stream can be controlled with respect to the ratio of oxidant stream; With
(d) with respect to burner fuel pipeline location oxidant conduit, so that oxidant conduit enters the oxidant Mixed Zone of combustion zone with the oxidant supply, and the burner fuel pipeline with the fuel supply enter the combustion zone from the isolated fuel reaction zone in oxidant Mixed Zone.
Description of drawings
Fig. 1 is the cutaway view of the adaptable burner of the present invention.
Fig. 2 is the cutaway view of one embodiment of the invention.
Fig. 3 is the plane of the furnace wall of the embodiment of the invention shown in Fig. 2.
Fig. 4 is the plane of the furnace wall shown in the another embodiment of the present invention.
Fig. 5 is the plane of the furnace wall shown in the another embodiment of the present invention.
Fig. 6 is the plane of the furnace wall shown in the another embodiment of the present invention.
Fig. 7 is the schematic diagram of the burning of one embodiment of the invention.
Fig. 8 is the schematic diagram of the burning of another embodiment of the present invention.
The detailed description of invention
The present invention can realize that in any stove of conventional design this stove typically comprises enclosure wall, and the burning under the high temperature takes place within it.Enclosure wall typically with refractory material stove brick for example or the material that similarly can bear thousands of degree temperature that fender produces within the walls surround.Preferably, the bottom surface of stove, all sides and end face are all surrounded by this material.Stove for example of the present invention can actually comprise iron and steel reheater and other stoves, and solid material is heated by these stoves, for example glass furnace, and other stoves, and the material of sending in these stoves is melted or is maintained at molten state.
Required high temperature is by forming in the stove that burns at one or more burners.Fig. 1 has described a typical burner of present use, and this burner combustion fuel and air are to form high temperature in stove.Burner 1 be arranged to by furnace wall 2 towards the combustion zone 3 openings.Burner 1 comprises fuel channel 4 and air duct 5.Fuel is sent into the combustion zone 3 of furnace interior by fuel channel 4, and be included in the airborne oxygen combustion of sending into by air duct 5, thereby form flame and calory burning be provided to the inside of combustion zone 3 and whole stove.
The suitable fuel that is used for the burning of this air fuel comprises gaseous hydrocarbons, for example natural gas and methane, be created in bi-product gas, for example oven gas and the blast furnace gas of steel rolling mill, the mixture of these gaseous fuels, and liquid fuel, for example atomized fuel oil and solid fuel, for example fine coal.Provide fuel and air by their passages 4 and 5 separately by the appropriate device that is connected to its source of supply, all routine techniques all are that those skilled in the art are familiar with fully.
The equipment fuel metering of Reference numeral 13 expression enters and pass through the flow velocity of fuel channel 4 among Fig. 1 and 2, and whether adjusting permits fuel to flow into and pass through fuel channel 4.Another equipment of Reference numeral 16 expressions is regulated the flow velocity that combustion air entered and passed through air duct 5 among Fig. 1 and 2.
The burner that the present invention can give the air fuel combustion system increases with the oxygenated fuel combustion system ability of combustion fuel selectively.This ability can be passed through in other each points, provides a kind of mode of supplying oxidant to increase, and this oxidant has than the higher oxygen content of airborne oxygen content that enters combustion zone 3.Preferably, oxygen has the oxygen concentration of 25vol.% at least, more preferably 90vol.% at least.The optimal way of realizing this supply is shown in Figure 2, and it has described the oxidant lance 14 that is arranged in the air duct 5.Oxidant lance 14 is infeeded by the equipment that is fit to, in Fig. 2, represent with 15, its supply oxidant and can controllably regulate the flow velocity that oxidant entered and pass through spray gun 14, and can controllably regulate oxidant and whether allow to flow into and pass through oxidant lance 14.
Can move the present invention so that in the oxygenated fuel combustion system burnt fuel with identical with air fuel combustion system burnt fuel.In the case, fuel can be sent into by fuel channel 4.Selectively, for example, when with oxygenated fuel combustion system burnt fuel with not simultaneously, or when must when more high flow rate be sent into, being used for the oxygenated fuel burnt fuel and sending into by second fuel channel with oxygenated fuel combustion system supplied fuel with air fuel combustion system burnt fuel.This second fuel channel illustrates with Fuel lance 11 in Fig. 2, it is arranged in the fuel channel 4, so that the aperture of spray gun 11 is enough near the opening of fuel channel 4, the flame that the feasible fuel combustion of sending into from Fuel lance 11 ends forms is supported and is extended into combustion zone 3 well.Fuel is sent into Fuel lance 11 with the source of 12 expressions from Fig. 2, the flow velocity that fuel entered and passed through Fuel lance 11 is also controlled in this source, and whether control fuel can flow into and by Fuel lance 11, and by Fuel lance 11 and the fuel ratio by fuel channel 4.
As be further described below, in the mode of oxygenated fuel burning, need control fuel to flow and the relative momentum of oxidant flow.In most of the cases, oxidant conduit is in burner, and second fuel channel needs and can enter combustion zone 3 with the more speed fuel supplying of necessity.If it is no problem to form NOx by the burning in stove, then the fuel channel of Cun Zaiing can use with oxidant conduit described here.If it is problem that NOx forms, then if suitable specification, second fuel channel can be integrated into air-fuel burner by its fuel channel, or enters combustion air conduit by the hole guiding, or enters the outside of burner by the hole on the furnace wall as shown in Figure 5.
Fig. 3 is the front view that burner that Fig. 2 describes is seen within the walls from fender.Can find out that Fuel lance 11 is arranged in the fuel channel 4, oxidant lance 14 is arranged in the air duct 5.
Can also use other embodiment that reaches the object of the invention equally.In fact, according to the structure of air-fuel burner, and according to the free space at the direct area of combustor external, other structure may be better for the simplification of structure and operation.
Fig. 4 has described the embodiment of a replacement, wherein as the burner of second fuel channel and Fuel lance 11 as with respect to Fig. 2 and 3 described, and oxidant is by spray gun 14 supplies, spray gun 14 near burner but discharging oxidant at point of combustor external enters combustion zone 3 in the stove (meaning that not within the space of defining by the burner outer surface its opening is towards the combustion zone 3 there).
Fig. 5 has described the embodiment of another replacement, wherein oxidant offers the combustion zone by the spray gun 14 that is arranged in the air duct 5, and as the Fuel lance 11 of second fuel channel near burner but discharging fuel at the point of combustor external enters combustion zone 3 in the stove.
Fig. 6 has described the embodiment of another replacement, and wherein oxidant lance 14 and spray gun 11 boths as second fuel channel are arranged in the air duct 5.
Under the mode of oxygenated fuel operation, fuel is sent into spray gun or other device of combustion zone 3, and spray gun or other device by oxidant being sent into the combustion zone 3 or the oxygenated fuel method of operation, must locate relative to each other, thereby (that is, physically different mutually) are separated in the oxidant Mixed Zone that makes oxidant as described below send in combustion zone 3 with the fuel reaction district that fuel is sent into.The supply of oxygen and fuel, and move during in the mode of oxygenated fuel operation when burner, should be according to United States Patent (USP) 5,076,779 descriptions that comprise are carried out, and the whole contents of foregoing description is incorporated herein by reference.Particularly, oxidant is injected into combustion zone 3 with enough speed, and this speed is enough to carry or be blended in the furnace gas that has the oxidant of injection in the combustion zone 3.Furnace gas comprises the ambient gas that penetrates into the combustion zone and from the gas of oxidant mixture and fuel reaction mixture.The speed of general oxidant is 200 feet per seconds at least and preferably arrives within the velocity of sound (at 70 ℉, 1, the 070 feet per second) scope 250.The enough furnace gas of the speed of oxidant mix the oxygen concentration of the oxidant that injects with dilution with the oxidant of injection, thereby make oxidant mixture at the no more than 10vol.% of oxygen concentration and preferably produce within the oxidant Mixed Zone of no more than 5vol.%.When pure oxygen or oxygen-enriched air during, require higher furnace gas to carry oxygen concentration is reduced to the more low-level of needs as oxidant.Come down to not have fuel because deliver into the furnace atmosphere of oxidant injection, so there is not combustion reaction to occur in this zone.
Owing to send into the high-speed caused turbulent flow or the sucking-off effect of the oxidant stream of oxidant Mixed Zone, furnace gas mixes with oxidant or delivers into oxidant.Comprising of producing is obvious than the lower oxidant mixture of injection oxidizer oxygen concentration that exists, and flows out and be used for forming the part of atmosphere in the combustion zone 3 from the oxidant Mixed Zone.That is to say that oxidant mixture is provided to combustion zone 3 with other furnace gas.
When fuel when the present invention is injected into combustion zone 3 with the mode run duration of oxygenated fuel, because fuel stream injects the turbulent flow that produces, flow into and mix from the furnace gas of atmosphere in the combustion zone 3, and the oxygen in furnace gas and fuel burn in fuel reaction zone with fuel stream.According to the quantity of the air of supplying with by air duct 5 and the relative position of Fuel lance 11, before primary combustion zone 3 in the combustion zone of stove, small amount of fuel can with by the reaction of air duct 5 air supplied.
Temperature in combustion zone 3 will may cause flame instability because temperature is lower than 1400 ℉ above 1400 ℉.When furnace gas temperature was higher than the autoignition temperature of fuel and oxygen, fuel and oxygen molecule be spontaneously reaction in furnace gas.Yet because oxygen concentration is relatively low, owing to have a large amount of non-reaction moleculars in fuel reaction zone, for example carbon dioxide, water vapour and nitrogen molecular are so that flame temperature keeps is relatively low.Under these conditions, the burning in fuel reaction zone produces calory burning and combustion reaction products, and for example carbon dioxide and water vapour still produce nitrogen oxide hardly.The actual quantity of the nitrogen oxide that produces changes with each specific situation, and depends on factors such as the nitrogen concentration of for example furnace gas temperature, combustion zone and the time of staying.
The fuel mixture that comprises combustion reaction products that produces flows out fuel reaction mixture, and is used for forming the part of atmosphere in the combustion zone 3, thus other furnace gas is provided to the combustion zone.In fuel reaction zone, fuel is completing combustion in fact, so that there be not burning or unburnt fuel of significant amounts in the combustion zone outside fuel reaction zone.
In the enforcement of oxygenated fuel combustion system of the present invention, importantly, oxidant Mixed Zone and fuel reaction zone keep (or " isolation ") separated from each other in combustion zone 3.Like this, burning by major limitation to fuel reaction zone with weaken under the condition of nitrogen oxide (" NOx ") formation.Although the different step of these combustion systems is described according to order, it will be appreciated by those skilled in the art that the step of these methods can simultaneously and be carried out continuously.
By decanting point being set (just, for example spray gun 11 and 14 end) and the location injection direction, the oxidant Mixed Zone and the fuel reaction zone of fuel and oxidant, can separate as required, with the dilution of avoiding the oxidant necessity in the oxidant Mixed Zone and the integration before the essence completing combustion of fuel necessity and overlapping in fuel reaction zone.
Fuel and oxidant are sent into combustion zone 3 in some way, fully mix to be implemented in the combustion zone 3, make that the combustion zone atmosphere outside oxidant Mixed Zone and fuel reaction zone is uniform basically.In particularly preferred embodiment, fuel and oxidant are injected into combustion zone 3 in some way to be lifted at the recirculation pattern of the furnace gas in the combustion zone 3.This recirculation pattern helps to improve Temperature Distribution and the gas uniformity in the combustion zone 3, and improves in the oxidant Mixed Zone and the mixing in the fuel reaction zone, causes burning more stably and postpones formation NOx.In combustion zone 3, have optimum furnace gas recirculation, identical with the composition of atmosphere of point in the outer combustion zone 3 of oxidant Mixed Zone and fuel reaction zone basically from the composition of the flue gas of combustion zone.This recirculation pattern also promotes the fuel reaction zone downstream and enters the furnace gas conveying of oxidant stream and the furnace gas conveying stream that downstream, oxidant Mixed Zone enters fuel.
Particularly preferably be, under the oxygenated fuel method of operation of the present invention, at full speed and mode disconnected from each other supply oxidant stream and fuel stream so that oxidant Mixed Zone and fuel reaction zone are not overlapping.Preferably, when by points of proximity injection relatively closely, for example in the embodiment that Fig. 3-6 describes, the ratio of fuel amount of flow flux and oxidant stream momentum flux should be at 1:5 between the 5:1.
Fig. 7 and 8 shows two embodiment that the oxygenated fuel combustion system can be realized.Letter " O " expression oxidant Mixed Zone, letter " F " expression fuel mix zone.Point to the arrow of oxidant Mixed Zone " O " and described the furnace gas that is drawn out of, towards and enter the oxidant Mixed Zone, and the arrow that points to fuel reaction zone " F " described towards and the furnace gas that enters fuel reaction zone flow.
By providing suitable auxiliary air-fuel burner is changed of control to become the burner that to carry out air fuel burning and oxygenated fuel burning selectively, make the operator in same burner, between air fuel combustion system and oxygenated fuel combustion system, controllably to switch.Provide this performance need to control, it can controllably minimize or limit, close or open, the air by air duct flows, and its can controllably close or open by the supply oxidant to the combustion zone 3 oxidant lance or the oxidant flow of other unit.Preferably, control also allows to regulate the flow velocity of combustion air and the flow velocity of oxidant by their pipelines separately.In its simplest mode, controlling organization can only comprise the control oxidant to the combustion zone 3 control valves that flow and control air to the mobile control valve of the air duct of burner.In most of embodiment, another one is this when mobile when opening, and wishes to close fully this flowing.Commercially available typical oxygen supply equipment has double block valve (for safety), flow measurement device, pressure switch and other have the instrument that can promote the control level.
In addition, in these embodiments, as long as control has been used to regulate the flow velocity that enters the fuel of combustion zone 3 by burner, no matter combustion air fuel or oxygenated fuel use same fuel not need the control that provides extra.Yet, among these embodiment, different fuel or different fuel supply pipe roads are provided, whether depend on combustion air fuel or oxygenated fuel, need then to allow the operator to control, when the oxygenated fuel combustion system moves, close the fuel relevant and flow with the air fuel burning, and when the air fuel mode is moved, close the fuel relevant and flow with the oxygenated fuel burning.Yet even when same fuel burns with air fuel and oxygenated fuel mode, the oxygenated fuel mode needs higher fuel flow rate usually.Correspondingly, switch to second fuel channel by the fuel that fuel is carried and measuring system provides, fuel conveying and measuring system fuel supplying in position arrive fuel channel, (for example to be used for the air fuel burning, low velocity fuel typically is provided) fuel supplying to air-fuel burner, second fuel channel is used for fuel supplying and is used for oxygenated fuel burning (promptly arrive burner, or arrive pipeline 11, or arrive for example fuel of separation opening 11 shown in Figure 5).Such benefit is fuel supply and the measuring system that keeps and only switch existence between pipeline.
Preferably, allow the flowing substantially of air by air duct controlled, even under the oxygenated fuel combustion system of supply and combustion oxidant, also allow to control.Control the ratio that makes the operator can little by little, controllably increase oxidant flow velocity and air velocity, up to forming the burning condition that needs.
When as during installation air-fuel burner described here, the performance of controllably carrying out oxygenated fuel burning and air fuel burning is provided in same burner, and the performance of in same burner, controllably between air fuel burning and oxygenated fuel burning, selecting as required, composite set and its performance provide some significant advantages to the operator.An advantage is to improve energy efficiency.That is to say that improvement is used for the fuel consumption of a certain amount of furnace output, and can reduce fuel cost, even consider to reduce the expense of oxygen in the oxidant that consumes.Another advantage is, (for example in the given unit interval quantity of the iron and steel of heating) again improved production performance on the meaning of the quantity of furnace output.According to the characteristic of remodeling described here with forehearth, this improvement can be owing to such fact: the burning that has the oxygen content that increases with respect to air can overcome the combustion air restriction of stove quantitatively, and/or helps to make and must reduce (because this flue gas comprises the flue gas nitrogen still less that produces than in the air fuel burning) by the flue gas volume that flue is discharged.

Claims (30)

1, a kind of combustion apparatus comprises
(a) stove surrounds the combustion zone, and has at least one burner by the furnace wall, and air is sent into this burner by air duct, and fuel sends in the combustion zone by the burner fuel pipeline from stove outside, with in burner combustion;
(b) oxidant conduit can be sent into oxidant in the stove outside stove by this pipeline; With
(c) control device is regulated the oxidant flow of passing through oxidant conduit and the air that passes through air duct flowed, so air stream can be controlled with respect to the ratio of oxidant stream;
Wherein oxidant conduit and burner fuel pipeline are located relative to each other, so that oxidant conduit enters oxidant Mixed Zone in the combustion zone with the oxidant supply, and the burner fuel pipeline with the fuel supply enter in the combustion zone from the isolated fuel reaction zone in oxidant Mixed Zone.
2, according to the burner of claim 1, wherein oxidant conduit enters stove with oxidant from the inner supply of burner.
3, according to the burner of claim 1, wherein oxidant conduit never the opening in burner the oxidant supply is entered stove.
4, according to the burner of claim 1, further comprise second fuel channel, fuel is fed to the combustion zone internal combustion outside stove by this second fuel channel.
5, according to the burner of claim 4, wherein oxidant conduit enters stove with oxidant from the inner supply of burner.
6, according to the burner of claim 5, wherein second fuel channel enters stove from burner inside with the fuel supply.
7, according to the burner of claim 5, wherein second fuel channel never the opening in burner the fuel supply is entered stove.
8, according to the burner of claim 4, wherein oxidant conduit never the opening in burner the oxidant supply is entered stove.
9, burner according to Claim 8, wherein second fuel channel enters stove from burner inside with the fuel supply.
10, burner according to Claim 8, wherein second fuel channel never the opening in burner the fuel supply is entered stove.
11, a kind of burner apparatus comprises
(a) burner, air are sent into the combustion zone internal combustion of this burner by the burner fuel pipeline by air duct, fuel;
(b) oxidant conduit can be sent oxidant into burner by this oxidant conduit; With
(c) control device is regulated the oxidant flow of passing through oxidant conduit and the air that passes through air duct flowed, so air stream can be controlled with respect to the ratio of oxidant stream;
Wherein oxidant conduit and burner fuel pipeline are located relative to each other, so that oxidant conduit enters the oxidant Mixed Zone of combustion zone with the oxidant supply, and the burner fuel pipeline with the fuel supply enter the combustion zone from the isolated fuel reaction zone in oxidant Mixed Zone.
12, according to the burner apparatus of claim 11, wherein oxidant conduit enters stove from burner inside with the oxidant supply.
13, according to the burner apparatus of claim 11, wherein oxidant conduit never the opening in burner the oxidant supply is entered stove.
14, according to the burner apparatus of claim 11, further comprise second fuel channel, supply fuel to burner combustion by this second fuel channel.
15, according to the burner apparatus of claim 14, wherein oxidant conduit enters stove from burner inside with the oxidant supply.
16, according to the burner apparatus of claim 15, wherein second fuel channel enters stove from burner inside with the fuel supply.
17, according to the burner apparatus of claim 15, wherein second fuel channel never the opening in burner the fuel supply is entered stove.
18, according to the burner apparatus of claim 14, wherein oxidant conduit never the opening in burner the oxidant supply is entered stove.
19, according to the burner apparatus of claim 18, wherein second fuel channel enters stove from burner inside with the fuel supply.
20, according to the burner apparatus of claim 18, wherein second fuel channel never the opening in burner the fuel supply is entered stove.
21, a kind of method of improving the air ignition furnace comprises
(a) provide a kind of stove, surround the combustion zone, and have at least one burner by the furnace wall, air is sent into burner combustion in the combustion zone by air duct and fuel by the burner fuel pipeline outside stove;
(b) provide oxidant conduit, oxidant can be sent into stove outside stove by this pipeline;
(c) provide control device, regulate oxidant flow by oxidant conduit and the air by air duct and flow, so air stream can be controlled with respect to the ratio of oxidant stream; With
(d) with respect to burner fuel pipeline location oxidant conduit, so that oxidant conduit enters the oxidant Mixed Zone of combustion zone with the oxidant supply, and the burner fuel pipeline with the fuel supply enter the combustion zone from the isolated fuel reaction zone in oxidant Mixed Zone.
22, according to the method for claim 21, wherein oxidant conduit enters stove from burner inside with the oxidant supply.
23, according to the method for claim 21, wherein oxidant conduit never the opening in burner the oxidant supply is entered stove.
24, a kind of method of improving the air ignition furnace comprises
(a) provide stove, surround the combustion zone, and have at least one burner by the furnace wall, air is sent into burner combustion in the combustion zone by air duct and fuel by the burner fuel pipeline outside stove;
(b) provide oxidant conduit, oxidant can be sent into stove outside stove by this pipeline;
(c) provide control device, regulate oxidant flow by oxidant conduit and the air by air duct and flow, so air stream can be controlled with respect to the ratio of oxidant stream;
(d) provide second fuel channel, by this second fuel channel supply fuel to from the stove outside combustion zone internal combustion and
(e) with respect to the burner fuel pipeline and second fuel channel at least one location oxidant conduit, so that oxidant conduit enters oxidant Mixed Zone in the combustion zone with the oxidant supply, and described fuel channel enters the fuel supply fuel reaction zone of the combustion zone of separating from the oxidant Mixed Zone.
25, according to the method for claim 24, wherein oxidant conduit enters stove from burner inside with the oxidant supply.
26, according to the method for claim 25, wherein second fuel channel enters stove from burner inside with the fuel supply.
27, according to the method for claim 25, wherein second fuel channel never the opening in burner the fuel supply is entered stove.
28, according to the method for claim 24, wherein oxidant conduit never the opening in burner the oxidant supply is entered stove.
29, according to the method for claim 28, wherein second fuel channel enters stove from burner inside with the fuel supply.
30, according to the method for claim 28, wherein second fuel channel never the opening in burner the fuel supply is entered stove.
CNA2007800116487A 2006-04-03 2007-03-28 Integration of oxy-fuel and air-fuel combustion Pending CN101415993A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101975394A (en) * 2010-11-10 2011-02-16 郑州锅炉股份有限公司 Engine-boiler integrated tube nest type combustion engine and device thereof for recovering three wastes
CN102770564A (en) * 2009-11-26 2012-11-07 林德股份公司 Method for heatng a blast furnace stove
CN102796836A (en) * 2011-05-25 2012-11-28 琳德股份公司 Heating apparatus
CN103380216A (en) * 2011-02-22 2013-10-30 琳德股份公司 Apparatus and method for heating a blast furnace stove
CN105358910A (en) * 2013-07-02 2016-02-24 托普索公司 Mixing of recycle gas with fuel gas to a burner

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1889816A1 (en) * 2006-08-15 2008-02-20 Rockwool International A/S Process and apparatus for making mineral fibres
DE102006060869A1 (en) * 2006-12-22 2008-06-26 Khd Humboldt Wedag Gmbh Method for controlling the operation of a rotary kiln burner
FR2915989B1 (en) * 2007-05-10 2011-05-20 Saint Gobain Emballage LOW NOX MIXED INJECTOR
US9651253B2 (en) * 2007-05-15 2017-05-16 Doosan Power Systems Americas, Llc Combustion apparatus
FR2927327B1 (en) * 2008-02-08 2010-11-19 Saint Gobain FURNACE LOW NOX WITH HIGH HEAT TRANSFER
WO2009110038A1 (en) * 2008-03-06 2009-09-11 株式会社Ihi Oxygen combustion boiler and pulverized coal burner
SE532338C2 (en) * 2008-04-22 2009-12-15 Aga Ab Method and apparatus for combustion of solid phase fuel
SE533967C2 (en) 2009-03-20 2011-03-15 Aga Ab Process for homogenizing the heat distribution and reducing the amount of NOx in combustion
US20120129111A1 (en) * 2010-05-21 2012-05-24 Fives North America Combustion, Inc. Premix for non-gaseous fuel delivery
US8550810B2 (en) * 2010-05-28 2013-10-08 Foster Wheeler North America Corp. Method of controlling a boiler plant during switchover from air-combustion to oxygen-combustion
DE102010053068A1 (en) * 2010-12-01 2012-06-06 Linde Ag Method and apparatus for diluted combustion
US9151492B2 (en) * 2011-02-22 2015-10-06 Linde Aktiengesellschaft Heating apparatus
WO2014168383A1 (en) * 2013-04-08 2014-10-16 국민대학교산학협력단 Flameless combustion industrial furnace using reverse air injection technique, reverse gas recirculation system, and fuel cell system applying catalyst-free fuel reformer using high-speed reverse air injection technique
DE102014103817B4 (en) * 2014-03-20 2018-07-19 Webasto SE Evaporator burner for a mobile liquid fueled heater
DE102014103813A1 (en) 2014-03-20 2015-09-24 Webasto SE Evaporator burner assembly for a mobile liquid fueled heater
DE102014103812A1 (en) 2014-03-20 2015-09-24 Webasto SE Evaporator burner for a mobile liquid fueled heater
DE102014103815B4 (en) 2014-03-20 2018-07-19 Webasto SE evaporative burner
EP2993397A1 (en) * 2014-09-02 2016-03-09 Linde Aktiengesellschaft Low-NOx-burner
JP6580710B2 (en) * 2016-07-26 2019-09-25 Ｊｆｅスチール株式会社 Auxiliary burner for electric furnace
CN106277718B (en) * 2016-08-19 2019-03-15 巨石集团有限公司 A kind of glass fibre tank furnace glass metal channel heating means
JP6592025B2 (en) * 2017-03-13 2019-10-16 大陽日酸株式会社 Method and apparatus for heating object to be heated
CN110325794B (en) * 2017-03-27 2021-07-20 杰富意钢铁株式会社 Heating device and heating method
JP2019039590A (en) * 2017-08-24 2019-03-14 トヨタ自動車株式会社 Nozzle for hydrogen gas combustion
US11060792B2 (en) 2018-03-23 2021-07-13 Air Products And Chemicals, Inc. Oxy-fuel combustion system and method for melting a pelleted charge material
US11306915B2 (en) * 2018-09-26 2022-04-19 Taiheiyo Cement Corporation Cement kiln burner device and method for operating the same
CN111121002A (en) * 2018-11-01 2020-05-08 中国科学院工程热物理研究所 Pulverized coal fired boiler with bottom burner and control method thereof
JP7389778B2 (en) 2021-10-20 2023-11-30 中外炉工業株式会社 Burna

Family Cites Families (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115851A (en) * 1960-05-11 1963-12-31 Foster Wheeler Corp Multi-fuel burner
GB1274637A (en) * 1969-03-27 1972-05-17 Zink Co John Process for disposal of oxides of nitrogen
USRE28679E (en) * 1970-05-13 1976-01-13 International Industries Ltd. Burners
US4347052A (en) * 1978-06-19 1982-08-31 John Zink Company Low NOX burner
JPS5819929B2 (en) * 1978-07-11 1983-04-20 新日本製鐵株式会社 Low NO↓x burner
US4257762A (en) * 1978-09-05 1981-03-24 John Zink Company Multi-fuel gas burner using preheated forced draft air
US4258544A (en) * 1978-09-15 1981-03-31 Caterpillar Tractor Co. Dual fluid fuel nozzle
US4408982A (en) * 1982-01-05 1983-10-11 Union Carbide Corporation Process for firing a furnace
DE3317035A1 (en) * 1983-05-10 1984-11-15 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau MULTIPLE BURNER
USRE34298E (en) * 1984-08-17 1993-06-29 American Combustion, Inc. Method for waste disposal
US4622007A (en) * 1984-08-17 1986-11-11 American Combustion, Inc. Variable heat generating method and apparatus
US4629413A (en) * 1984-09-10 1986-12-16 Exxon Research & Engineering Co. Low NOx premix burner
US4969814A (en) * 1989-05-08 1990-11-13 Union Carbide Corporation Multiple oxidant jet combustion method and apparatus
US5000102A (en) * 1989-12-21 1991-03-19 Union Carbide Industrial Gases Technology Corporation Method for combusting wet waste
US5022332A (en) * 1990-08-15 1991-06-11 Union Carbide Industrial Gases Technology Corporation Combustion method for improved endothermic dissociation
US5076779A (en) * 1991-04-12 1991-12-31 Union Carbide Industrial Gases Technology Corporation Segregated zoning combustion
JPH05172312A (en) * 1991-12-24 1993-07-09 Tokyo Gas Co Ltd Nitrogen oxide low generating burner
US5201650A (en) * 1992-04-09 1993-04-13 Shell Oil Company Premixed/high-velocity fuel jet low no burner
US5267850A (en) * 1992-06-04 1993-12-07 Praxair Technology, Inc. Fuel jet burner
US5242296A (en) * 1992-12-08 1993-09-07 Praxair Technology, Inc. Hybrid oxidant combustion method
US5413476A (en) * 1993-04-13 1995-05-09 Gas Research Institute Reduction of nitrogen oxides in oxygen-enriched combustion processes
US5417564A (en) * 1994-01-27 1995-05-23 Riley Stoker Corporation Method and apparatus for altering the firing pattern of an existing furnace
US5387100A (en) * 1994-02-17 1995-02-07 Praxair Technology, Inc. Super off-stoichiometric combustion method
US5601425A (en) * 1994-06-13 1997-02-11 Praxair Technology, Inc. Staged combustion for reducing nitrogen oxides
US5516279A (en) * 1994-07-06 1996-05-14 The Boc Group, Inc. Oxy-fuel burner system designed for alternate fuel usage
US5724897A (en) * 1994-12-20 1998-03-10 Duquesne Light Company Split flame burner for reducing NOx formation
US5694869A (en) * 1994-12-29 1997-12-09 Duquesne Light Company And Energy Systems Associates Reducing NOX emissions from a roof-fired furnace using separated parallel flow overfire air
US5725367A (en) * 1994-12-30 1998-03-10 Combustion Tec, Inc. Method and apparatus for dispersing fuel and oxidant from a burner
US5772421A (en) * 1995-05-26 1998-06-30 Canadian Gas Research Institute Low nox burner
US5755818A (en) * 1995-06-13 1998-05-26 Praxair Technology, Inc. Staged combustion method
US5924858A (en) * 1995-06-13 1999-07-20 Praxair Technology, Inc. Staged combustion method
DE69632666T2 (en) * 1995-07-17 2005-06-09 L'Air Liquide, S.A. a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Combustion method and apparatus therefor with separate injection of fuel and oxidant
US5743723A (en) * 1995-09-15 1998-04-28 American Air Liquide, Inc. Oxy-fuel burner having coaxial fuel and oxidant outlets
US5904475A (en) * 1997-05-08 1999-05-18 Praxair Technology, Inc. Dual oxidant combustion system
US6007326A (en) * 1997-08-04 1999-12-28 Praxair Technology, Inc. Low NOx combustion process
JPH1182941A (en) * 1997-08-29 1999-03-26 Tokyo Gas Co Ltd Oxygen burner
FR2783595B1 (en) * 1998-09-22 2000-10-20 Air Liquide METHOD FOR HEATING AN OVEN
JP3738141B2 (en) * 1998-11-10 2006-01-25 岩谷産業株式会社 Variable oxygen enrichment burner
FR2788110B1 (en) * 1998-12-30 2001-02-16 Air Liquide COMBUSTION PROCESS AND ITS USES FOR THE PREPARATION OF GLASS AND METAL
DE19905995A1 (en) * 1999-02-15 2000-08-17 Asea Brown Boveri Injection lance or nozzle for liquid and gaseous fuel in combustion chamber is part of secondary or tertiary burner around which flows hot gas jet in main flow direction
US6113389A (en) * 1999-06-01 2000-09-05 American Air Liquide, Inc. Method and system for increasing the efficiency and productivity of a high temperature furnace
US6705117B2 (en) * 1999-08-16 2004-03-16 The Boc Group, Inc. Method of heating a glass melting furnace using a roof mounted, staged combustion oxygen-fuel burner
US6241510B1 (en) * 2000-02-02 2001-06-05 Praxair Technology, Inc. System for providing proximate turbulent and coherent gas jets
US6519973B1 (en) * 2000-03-23 2003-02-18 Air Products And Chemicals, Inc. Glass melting process and furnace therefor with oxy-fuel combustion over melting zone and air-fuel combustion over fining zone
US6398546B1 (en) * 2000-06-21 2002-06-04 Praxair Technology, Inc. Combustion in a porous wall furnace
AU776725B2 (en) * 2000-08-04 2004-09-16 Mitsubishi Hitachi Power Systems, Ltd. Solid fuel burner and combustion method using solid fuel burner
FR2813893B1 (en) * 2000-09-08 2003-03-21 Air Liquide METHOD FOR HEATING METALLURGICAL PRODUCTS
US6540508B1 (en) * 2000-09-18 2003-04-01 The Boc Group, Inc. Process of installing roof mounted oxygen-fuel burners in a glass melting furnace
US6813902B2 (en) * 2000-11-01 2004-11-09 American Air Liquide, Inc. Systems and methods for increasing production of spheroidal glass particles in vertical glass furnaces
US6702569B2 (en) * 2001-01-11 2004-03-09 Praxair Technology, Inc. Enhancing SNCR-aided combustion with oxygen addition
US6699029B2 (en) * 2001-01-11 2004-03-02 Praxair Technology, Inc. Oxygen enhanced switching to combustion of lower rank fuels
US6699031B2 (en) * 2001-01-11 2004-03-02 Praxair Technology, Inc. NOx reduction in combustion with concentrated coal streams and oxygen injection
FR2823290B1 (en) * 2001-04-06 2006-08-18 Air Liquide COMBUSTION PROCESS INCLUDING SEPARATE INJECTIONS OF FUEL AND OXIDIZING AND BURNER ASSEMBLY FOR IMPLEMENTATION OF THIS PROCESS
US6702571B2 (en) * 2001-09-05 2004-03-09 Gas Technology Institute Flex-flame burner and self-optimizing combustion system
US6752620B2 (en) * 2002-01-31 2004-06-22 Air Products And Chemicals, Inc. Large scale vortex devices for improved burner operation
JP2003329240A (en) * 2002-05-07 2003-11-19 Osaka Gas Co Ltd Heating furnace
IN2012DN02631A (en) * 2002-05-15 2015-09-04 Praxair Technology Inc
US6978726B2 (en) * 2002-05-15 2005-12-27 Praxair Technology, Inc. Combustion with reduced carbon in the ash
US6638061B1 (en) * 2002-08-13 2003-10-28 North American Manufacturing Company Low NOx combustion method and apparatus
CA2509631C (en) * 2003-01-21 2011-03-01 L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Po Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and apparatus for oxygen enrichment in fuel conveying gases
US7153129B2 (en) * 2004-01-15 2006-12-26 John Zink Company, Llc Remote staged furnace burner configurations and methods
US7074034B2 (en) * 2004-06-07 2006-07-11 Air Products And Chemicals, Inc. Burner and process for combustion of a gas capable of reacting to form solid products
US7402038B2 (en) * 2005-04-22 2008-07-22 The North American Manufacturing Company, Ltd. Combustion method and apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102770564A (en) * 2009-11-26 2012-11-07 林德股份公司 Method for heatng a blast furnace stove
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CN101975394A (en) * 2010-11-10 2011-02-16 郑州锅炉股份有限公司 Engine-boiler integrated tube nest type combustion engine and device thereof for recovering three wastes
CN103380216A (en) * 2011-02-22 2013-10-30 琳德股份公司 Apparatus and method for heating a blast furnace stove
CN103380216B (en) * 2011-02-22 2015-07-22 琳德股份公司 Apparatus and method for heating a blast furnace stove
CN102796836A (en) * 2011-05-25 2012-11-28 琳德股份公司 Heating apparatus
CN105358910A (en) * 2013-07-02 2016-02-24 托普索公司 Mixing of recycle gas with fuel gas to a burner
CN105358910B (en) * 2013-07-02 2018-06-15 托普索公司 The method of burning fuel, burner and its application in catalytic reactor

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US20070231761A1 (en) 2007-10-04
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EP2002180A2 (en) 2008-12-17

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