WO2007085490A1 - Dispositif et procédé destinés à séparer des polluants dans un gaz de fumée d'une installation thermique - Google Patents

Dispositif et procédé destinés à séparer des polluants dans un gaz de fumée d'une installation thermique Download PDF

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Publication number
WO2007085490A1
WO2007085490A1 PCT/EP2007/000751 EP2007000751W WO2007085490A1 WO 2007085490 A1 WO2007085490 A1 WO 2007085490A1 EP 2007000751 W EP2007000751 W EP 2007000751W WO 2007085490 A1 WO2007085490 A1 WO 2007085490A1
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WO
WIPO (PCT)
Prior art keywords
flue gas
deposition
deposition surface
cleaning
boiler
Prior art date
Application number
PCT/EP2007/000751
Other languages
German (de)
English (en)
Inventor
Ragnar Warnecke
Volker Müller
Odulf Reufer
Original Assignee
Gks - Gemeinschaftskraftwerk Schweinfurt Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gks - Gemeinschaftskraftwerk Schweinfurt Gmbh filed Critical Gks - Gemeinschaftskraftwerk Schweinfurt Gmbh
Priority to EP07703107A priority Critical patent/EP1979679A1/fr
Publication of WO2007085490A1 publication Critical patent/WO2007085490A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/006—Layout of treatment plant

Definitions

  • Contents of the invention is a method and a device for the separation of pollutants in the flue gas of thermal systems, in particular waste, refuse derived fuel or biomass incineration plants.
  • heating surfaces in particular convective heating surfaces, are provided in the flue gas stream. These heating surfaces, the temperature of the flue gas is gradually reduced and at the same time transmit the energy emitted by the flue gas in the form of heat to a medium.
  • Heating units in which heating surfaces are provided, are used in particular superheater, evaporator and so-called economizer. Due to the chemical composition of the flue gas and the entrained impurities, it comes at the heating surfaces because of the prevailing conditions to attacks of the surfaces. These attacks can be of a chemical nature, for example in the form of corrosion, or of physical nature, for example by abrasion by the particles carried in the flue gas.
  • DE 199 22 605 A1 proposes a method in which the temperature of the flue gas is adjusted by mixing the flue gas with other gases.
  • a disadvantage of this method is that the reactions occurring when the temperature of the flue gas decreases can not be specifically influenced.
  • the object of the present invention is therefore to provide a method and a device by means of which targeted protection for heating surfaces, in particular convective heating surfaces of the heating units, can be provided in a thermal system.
  • the invention is based on the finding that this object can be achieved by providing a reaction site upstream of the heating surfaces for the flue gases, the conditions of which can be set in a targeted manner and preferably maintained.
  • the invention therefore relates to a device for separating pollutants from a flue gas of a thermal plant, in particular a waste, substitute fuel or biomass incinerator, in the at least one heating surface for heat recovery from the flue gas, the combustion of a feedstock arises, is provided.
  • the device is characterized in that at least one deposition surface is provided in the device, which is connected upstream of the at least one heating surface.
  • the deposition surface is in this case an area which projects into the flue gas stream.
  • the deposition surface is thus flowed by the flue gas and can serve for the separation of pollutants from the flue gas.
  • the deposition rate of the relevant pollutants at one in the flue gas stream projecting surface is based on the volume of construction higher than, for example, on the boiler walls, where the flue gas flows past.
  • the deposition surface of the first of boiler walls different heating surface is connected upstream.
  • the pollutants to be deposited on the deposition surface are in particular chlorine-containing and / or sulfur-containing substances.
  • the deposition of chlorides and / or sulfates is advantageous, since these pollutants on surfaces can lead to damage, in particular to corrosion.
  • the deposition surface may consist of a plurality of surfaces, in particular comprising a plurality of pipe surfaces and is therefore also referred to below as the deposition unit.
  • the deposition is preferably carried out in the thermal plant, for example in one of the trains of a combustion plant itself.
  • the deposition surface is thus provided in a range in which the temperature of the flue gas is greater than 350 0 C.
  • the thermal plant usually has at least two boiler trains, which may be vertical and / or horizontal trains.
  • the deposition surface may be provided in such a thermal plant in a boiler train, which is upstream of the boiler train in which the heating surfaces are arranged.
  • This upstream boiler train for example, represent the second Leeryak.
  • the heating surfaces for heat utilization from the Raugas can be heating surfaces, by means of which heat is recovered from the flue gas.
  • These may in particular be pipes or pipe systems which may be combined to form heating units, such as a superheater, an evaporator and the like.
  • the invention will be described below essentially with reference to thermal systems which have such heating surfaces.
  • the particle surfaces serve as heating surfaces in the context of the invention.
  • the heat from the flue gas can be used for example for chemical reaction in the particles.
  • Such heat recovery is used, for example, in cement production devices.
  • the deposition surface according to the invention can be provided.
  • the deposition surfaces are preferably cleanable.
  • the deposition surfaces for this purpose must be accessible for cleaning and on the other hand have a structure or surface which is designed so that particles can be removed from this in a simple manner.
  • the structure or surface should be designed so that a considerable increase in the pressure loss due to the sticking of particles is largely avoided.
  • the targeted removal of the pollutants is achieved according to the invention by adjusting and preferably maintaining conditions at the deposition surface, which favor deposition of the pollutants.
  • the deposition surface which favor deposition of the pollutants.
  • Temperature of the pollutant trap can be set to a certain temperature, for example by cooling within the deposition surface forming tubes. This favorable for the deposition of pollutants temperature at the surface according to the invention, for example, by cleaning the Abscheidungs Diagram and preferably completely cleaning a formed on the deposition surface coating layer can be maintained.
  • the deposition of the pollutants on the deposition surface is preferably favored by the fact that the deposition surface is provided in alignment with the flue gas stream, in which it at least partially obstructs the flow of the flue gas.
  • an influence of the flue gas flow is desired.
  • the arrangement of tubes forming the deposition surface or a deposition unit can be selected to each other so that thereby the flue gas stream is further blocked.
  • the conditions required for a desired reaction can additionally be set locally in a targeted manner.
  • the reaction site for the flue gas is predetermined by the intended deposition surface.
  • the conditions at the deposition surface are adjusted so that they are optimized for the physical deposition of particles.
  • a physical Deposition are referred to in particular a mechanically induced, a thermally induced and / or an electrically induced deposition.
  • the temperature of the flue gas and its components is reduced at the deposition surface.
  • This can be done by deliberately adjusting the surface temperature of the deposition surface. Due to the lower temperature of the deposition surface, inter alia, deposition of the particles due to thermophoresis can occur, in which the particles migrate to the deposition surface.
  • the deposition of the pollutants will essentially be done by mechanical deposition mechanisms. For larger particles, these deposition mechanisms are essentially due to impaction and, in the case of smaller particles, essentially by turbulences which form on the deposition surfaces and / or by interception.
  • the temperature at which the deposition surface is maintained by cooling and / or cleaning is preferably in a range in which corrosion of the deposition surface usually forming pipes is not or only slightly to be feared. In particular, the temperature is chosen so that it spares the critical corrosion temperature range.
  • the temperature of the deposition surface can be adjusted, for example by cooling and / or cleaning to less than 350 0 C. Alternatively, the deposition surface can be operated so that it has a temperature of greater than 500 0 C. This can be done for example by cleaning the surface, whereby it is heated by the flue gas.
  • the deposition surface preferably represents a pipe surface and the at least one pipe is connected to a media line.
  • the choice of pipe surfaces as a deposition surface allows for a small space the largest possible surface area at which the flue gas can come into contact with the deposition surface and at which chemical and / or physical processes of the pollutants carried in the flue gas can take place.
  • the deposition surface is formed by a tube bundle.
  • the media line can be part of a separate media circuit.
  • the temperature can be adjusted independently of other process parameters in the thermal system.
  • the heat emitted by the flue gas to the medium which is passed through the deposition surface can only be used to a limited extent.
  • the media conduit for supplying the deposition surface may be connected to the thermal recovery circuit of the thermal plant. As a result, the heat absorbed is used optimally and yet ensures a separation of pollutants.
  • the flue gas stream flows as far as possible or completely along the deposition surface and thereby an increased deposition rate can be obtained.
  • the flue gas flow arriving at the deposition surface and thus the particles contained therein are deflected.
  • the arrangement of the deposition surfaces, in particular of a deposition unit formed by tubes is chosen according to an embodiment of the invention so that the flue gas stream flows obliquely to this unit. This can be achieved, for example, by providing the deposition surfaces in a deflection region in the vessel. This may be, for example, the area of entry into a flue.
  • the deposition unit can be designed so that it has at least two rows of tubes and the at least two rows of tubes are arranged offset to one another such that the tubes of a row of tubes the
  • the deposition surface is preferably arranged in the effective region of a discharge funnel of the thermal system.
  • the device therefore comprises, in one embodiment, a power source connected to the deposition surface.
  • the deposition surface can be acted upon by eg positive or negative direct current.
  • electrically charged particles that may be present in the flue gas due to the high temperature may be additionally attracted to the deposition surface.
  • the device may have at least one cleaning device for cleaning the deposition surface.
  • the cleaning device to be provided for this purpose is not limited to a specific design. By providing a cleaning device, the layer thickness of the deposited on the deposition surface impurities or pollutants can be regulated.
  • the layer thickness of these deposits or deposits is of particular importance, since the layer thickness determines the temperature on the outside of the layer and thus the processes taking place there. If the layer thickness is kept low or, preferably, the deposited pollutants are completely removed, then the temperature on the outside of the lining or the deposits can be reduced. As a result, in particular the reaction rate of the pollutant conversion is reduced. Thus, sufficient deposition of pollutants on the deposition surface can be ensured while preventing attack of the material of the deposition surface.
  • the cooled or uncooled deposition surface is also protected from corrosive attack by cleaning the surface to the extent that sulfation of chlorides following the deposition from the flue gas releasing aggressive chlorine species can be prevented by removal of the deposit. As a result, the downstream heating surfaces are additionally protected against corrosion attack.
  • the particles enlarge by agglomeration and are therefore not entrained with the flue gas stream.
  • the cleaning device is preferably introduced from one of the side walls of a boiler train of the thermal system in which the flue gas is guided in the boiler train.
  • Sidewalls in the context of the invention, are all boiler walls, which limits the boiler interior to the sides of the boiler to the environment. In particular, these are the left and right side wall, the front and back wall and possibly the funnels.
  • an imaginary plane is perpendicular to the vertical, which may differ in space with a given angle of this imaginary plane, but without reaching the perpendicular.
  • Horizontal in the sense of the invention is thus any direction that has a horizontal direction component that is not equal to zero.
  • the cleaning effect is achieved by the application of the cleaning medium, which is preferably a liquid, on the deposits and / or deposits that have formed or formed from the impurities located in the flue gas.
  • the cleaning medium has a
  • the temperature is lower than the temperature which the linings on the outside, that is, the side facing away from the deposition surface or the tube surface. This temperature is usually higher than the temperature of the deposition surface itself.
  • the temperature difference between the coating and the cleaning medium is, for example, greater than 100 K.
  • Temperature change of the lining changes the physical properties of the lining, in particular its extent.
  • the covering will therefore contract and thus detach from the deposition surface.
  • By applying the cleaning medium thus takes place a mechanical relaxation of the coating, which leads to the falling of the coating from the deposition surface.
  • Leidenfrost ' cal phenomenon forms around the liquid introduced into the flue gas flow liquid droplets a steam envelope. Gases or vapors are poor heat conductors, so that the liquid droplet does not evaporate spontaneously despite the high ambient temperatures, even greater than 600 0 C.
  • the liquid droplet reaches the deposition surfaces or the adhering deposits and / or deposits.
  • the pad is wetted with the cleaning device.
  • the deposits and / or deposits are cooled, inter alia, by evaporation of the liquid. This causes embrittlement and stress in the coverings and / or
  • the cleaning device has such a small height or such a small diameter that they can be guided in the clear distance between tubes which form the deposition unit as a tube bundle. In this way, a cleaning of the deposition surface with a cleaning agent that is applied with low pressure on the deposition surface.
  • a high pressure of the cleaning agent which is necessary in conventional cleaning devices, in which the cleaning agent is introduced at a distance to the surface to be cleaned, is not required here and damage to the surface by the impact of the cleaning agent under high pressure can be avoided.
  • the required pressure depends on the cleaning requirements.
  • the main criteria are the size of the deposition surface and the effective radius of the outlets on the cleaning device.
  • the cleaning medium is preferably at a low pressure of less than 10 bar, preferably less than 6 bar of the Dispensed cleaning device.
  • the pressure designates the admission pressure of the cleaning medium, that is to say the pressure it has before exiting the cleaning device. This form is converted into kinetic energy after leaving the purifier.
  • the pressure is regulated so that it depends on the distance to be cleaned
  • Deposition surface is set.
  • the pressure is set to a value that ensures that the cleaning medium impinges on the deposition surface. However, a considerable impulse when striking should be avoided.
  • the cleaning medium can also be dispensed from the cleaning device without any appreciable pressure. In this case, the cleaning medium is transported only to the outlet and can there by gravity to a located below the cleaning device deposition surface. In this case, the deposition surface is sprinkled with the cleaning medium.
  • the horizontal introduction of the cleaning device is advantageous, as this also surfaces can be achieved, which are arranged under other surfaces, in particular heating surfaces. It is thus possible to arrange a deposition surface below the first in the flow direction of the flue gas heating surface, which may be a superheater or a so-called heat traps, and yet sufficiently clean. If the cleaning device were to be introduced in the vertical direction, the heating surfaces arranged above the deposition surface would make access to the deposition surface and thus its cleaning more difficult.
  • the introduction opening for the cleaning device in the side wall of the boiler is preferably arranged in the direction of the flue gas before or after a deposition surface or between at least two deposition surfaces. If the deposition surfaces are pipe surfaces a tube bundle, the introduction opening is provided predominantly between the tubes of the tube bundle.
  • the introduction opening for the cleaning device has, according to one embodiment, a device for closing the introduction opening. In this way, it becomes possible to remove the cleaning device, which may possibly be a lance, from the boiler train after the cleaning is completed.
  • the invention relates to a method for separating pollutants from a flue gas in a thermal plant, in particular waste, refuse derived fuel and biomass incineration plants.
  • the method is characterized in that at least one deposition surface is provided in the guide of the flue gas, which protrudes at least partially into the flue gas stream.
  • the deposition of pollutants from the flue gas can be increased prior to reaching one of the heating surfaces.
  • more relevant pollutants can be deposited on the deposition surface relative to the volume of construction, than on the boiler walls, where the flue gas flows past.
  • the pollutants to be deposited on the deposition surface are in particular chlorine-containing and / or sulfur-containing substances.
  • the deposition of chlorides and / or sulfates is advantageous, since these pollutants on surfaces can lead to damage, in particular to corrosion.
  • the deposition surface can thus also be referred to as pollutant trap.
  • pollutant trap the arrangement of eg pipes of pollutant trap can be chosen be that the greatest possible separation of the harmful substances from the flue gas is achieved.
  • a most extensive removal of pollutants is achieved by setting a suitable temperature at the deposition surface, maintaining the temperature by efficient cleaning of the deposition surface and / or by the geometry or arrangement of the deposition surface or these forming pipes.
  • the temperature of the deposition surface is set to be lower than the flue gas temperature in the vicinity of the deposition surface.
  • the temperature of the deposition surface is lower than the temperature of the heating surfaces connected downstream of the deposition surface.
  • the adjustment of the temperature of the deposition surface can be done by cooling the deposition surface from the inside.
  • cooling medium can be guided through the example, tubular deposition surface.
  • the temperature of the cooling medium has proven to be favorable to a temperature below the saturated steam temperature of the boiler medium.
  • the deposition surface can be supplied with electric current.
  • the temperature at the deposition surface is maintained by cleaning the deposition surfaces. Due to the continuity of the temperature of the Deposition surface, the chemical and / or physical processes can be specifically influenced on the deposition surface.
  • the cleaning medium preferably a cleaning liquid
  • the cleaning device is aligned horizontally.
  • the cleaning medium is discharged from the cleaning device in another vertical direction.
  • a vertical cleaning level is defined in which the deposits on the deposition surfaces can be removed or removed.
  • the cleaning device in the flue gas direction before or after a deposition surface or between at least two deposition surfaces, e.g. Tubes of a tube bundle, brought.
  • a deposition surface or between at least two deposition surfaces e.g. Tubes of a tube bundle
  • at least two deposition surfaces or pipes can be cleaned simultaneously with a cleaning device.
  • the cleaning medium is preferably water.
  • this cleaning agent may be sufficient to remove the deposit on the deposition surface of this. Aggressive cleaning agents that could damage the surface are not required.
  • the cleaning liquid is dispensed, for example, from the cleaning device under low pressure, more preferably in the range of less than 10 bar, preferably less than 6 bar. At these low pressures damage to the deposition surface is not to be feared even when the cleaning medium in the immediate vicinity of the deposition surface. Nevertheless, due to the proximity to the deposition surface sufficient detachment of the deposits can be ensured.
  • the cleaning device is preferably moved in the horizontal direction during the cleaning of the deposition surface. This way a can
  • Cleaning level which is vertical displacement of the cleaning agent in the vertical direction is moved along the deposition surface and so cleaned the entire surface in the same way and with the same intensity.
  • the cleaning is carried out according to the invention preferably during operation of the thermal plant.
  • This cleaning during operation of the thermal plant has the advantage that a shutdown of the boiler load is not necessary.
  • the detached covering of the deposition surfaces can be removed from the vessel alone or together with further discharges. Due to the small amount of cleaning liquid, which is necessary in the inventive method, the dusts and pads can be discharged largely dry as a rule.
  • the temperature conditions are given which are necessary for the detachment of the deposits from the deposition surface by heat removal.
  • Figure 1 a schematic representation of a waste incineration boiler with vertical boiler trains
  • Figure 2 a schematic block diagram of an embodiment of a
  • FIG. 3 a schematic representation of a waste incineration boiler with horizontal boiler trains
  • Figure 4 a schematic representation of an embodiment of the
  • Figure 5 a photograph of a crude pipe system
  • Figure 6 is a photograph of a pipe system cleaned during operation.
  • the present invention will be described essentially with reference to a countercurrent furnace with 4-pass vertical vessel.
  • the schematic structure of such a boiler is shown in FIG.
  • the invention can also be used in other firing and boiler types.
  • the thermal plant which is a waste incineration plant in FIG. 1, has a furnace 15 and four vertical boiler passes 16, 17, 18 and 19.
  • the boiler trains 16 and 17 are here Leerman in which there is a transfer of heat by radiation on the walls of the boiler trains.
  • To the Leerscope 16, 17 join in the flue gas direction R boiler flues 18, 19 with convective heating surfaces.
  • a heat trap 21 and four superheaters 22.1 to 22.4 are arranged in the third boiler train 18.
  • four economizers 23.1 to 23.4 are arranged.
  • These heating units which have convective heating surfaces, are designed as piping systems.
  • tant trap is a pipe system 24, which is used in the flue gas direction in front of the heating surfaces to be protected 21, 22, 23 in the flue gas stream.
  • the pipe system 24 is shown schematically in FIG. In this case, the pipe system 24 of the heat trap 21 is connected upstream. As can be seen from FIG. 4, the pipe system 24 can be integrated into the water / steam circuit of the boiler. This is indicated by the dashed line in the figure. The feed takes place in such a way that the temperature of the pipe wall of the pipe system 24 is lower than that of the heating surfaces 22 to be protected (see FIGS. 1 and 3). By, in relation to the environment, lower surface temperature of the pipe system 24, the solid, liquid or gaseous pollutants separate from the flue gas and are reflected as liquid and / or solid deposits on the pipe system 24 of the pollutant trap down. FIG. 4 also shows the possibility that the pipe system 24 is cooled by a circuit separate from the water / steam cycle of the boiler.
  • the deposition from the gas phase is based essentially on the condensation, in particular of chloridic gases. Some condensation temperatures are shown in Table 1. Table 1: Boiling and melting point temperatures of selected chlorides
  • Cleaning system is shown schematically in Figure 2.
  • This cleaning system is based on a mainly horizontally guided lance 1, which is introduced through the boiler wall in the boiler interior 16 to 19.
  • the geometry of the lance 1 is chosen so that the at least an outlet 2 can reach the spaces to be cleaned in the space of the pipe system 24.
  • the introduced into the pipe system 24 lance 1 is schematically indicated in the figure 4. In this case, the lance 1 extends into the image plane.
  • a pulse for opening the solenoid valve 8 are given.
  • a defined amount of the cleaning medium is applied under defined pressure as evenly as possible to the surfaces to be cleaned.
  • FIG 3 shows another embodiment of a thermal plant in which the boiler trains are arranged horizontally. Also in this system, a deposition surface in the form of a pipe system 24 is placed in front of the heating surfaces 21, 22, 23.
  • the invention is not limited to the illustrated embodiment.
  • the invention generally provides a method for the separation of pollutants from flue gases in incinerators, in which a deposition surface, for example in the form of a pipe system (pollutant trap) is introduced into the flue gas path, this pipe system is in the boiler, in the installed position before the located protective heating surfaces and is preferably integrated in the circuit of the boiler.
  • a deposition surface for example in the form of a pipe system (pollutant trap) is introduced into the flue gas path, this pipe system is in the boiler, in the installed position before the located protective heating surfaces and is preferably integrated in the circuit of the boiler.
  • the feed into the pipe system (pollutant trap) with a lower temperature than the ambient temperature of the downstream heating surfaces done and deposit the pollutants from the gas phase by the lower surface temperature of the pipe system of the pollutant trap and reflected as liquid and / or solid deposits on the pipe system of the pollutant trap , If the deposition surface, in particular the pipe system, is cleaned by a cleaning system, the dusts and deposits dissolved by the pipe system can generally be discharged dry through the boiler ash discharge systems.
  • the selection of the parameters surface and arrangement of the pipe system, temperature and installation position can be chosen in the present invention so that they have the normal operation of the boiler only minor side effects in terms of parameters steam pressure, steam temperature and steam quantity of the boiler.
  • the supply of the cleaning medium is preferably carried out via a horizontal lance, which is inserted through the side wall of the boiler and to which a nozzle is attached, which discharges the cleaning medium.
  • the application of the cleaning medium takes place symmetrically, so as to cause no reaction forces on the lance.
  • the system for cleaning the Deposition surface can be made mobile. Furthermore, the system can be operated manually, semi-automatically or fully automatically. Preferably, the cleaning system has a low design. As a result, this can get between the tubes of the pipe systems.
  • the exit angle of the cleaning medium is adapted to the requirements of the geometry of the pipe systems and process engineering conditions.
  • end positions of the cleaning system can be predetermined. These end positions can be monitored for automatic operation.
  • the cleaning system can also have an automatic operation via a pressure monitoring and / or a volume control for the cleaning medium.
  • the entry depth of the cleaning system can be regulated via the end positions of the cleaning system.
  • a controller may be provided for the automatic operation of the cleaning system.
  • the invention has been described essentially with reference to a combustion plant, in particular a waste incineration plant.
  • the invention is not limited to this type of thermal systems. It is also within the scope of the invention to use the deposition surface in another thermal installation, such as, for example, an apparatus for producing cement, and to carry out the method according to the invention in this installation. If the thermal installation is a plant different from a waste incineration plant, the boiler trains mentioned in the description are to be understood as the features of the thermal installation.
  • the other features and advantages of the invention, which have been described with respect to the waste incineration plant apply to other thermal systems - as applicable - accordingly. LIST OF REFERENCE NUMBERS

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Incineration Of Waste (AREA)
  • Chimneys And Flues (AREA)

Abstract

L'invention concerne un dispositif destiné à séparer des polluants dans un gaz de fumée d'une installation thermique, notamment une installation d'incinération de déchets, de combustible de remplacement et de biomasse, au moins une surface chauffante de ce dispositif servant à récupérer la chaleur du gaz de fumée dégagé lors de la réaction thermique d'une matière de charge. L'invention est caractérisée en ce que le dispositif comprend au moins une surface de séparation disposée en amont de la surface chauffante dans le sens du gaz de fumée. L'invention concerne aussi un procédé destiné à séparer des polluants dans un gaz de fumée. Cette invention permet de diminuer l'attaque de la corrosion sur les surfaces chauffantes d'une chaudière, que la technique actuelle ne permet pas de protéger suffisamment de la corrosion, de prolonger la durée de vie de ces surfaces chauffantes, d'améliorer le transfert thermique des surfaces chauffantes montées en aval et de réduire la perte de pression au niveau du gaz de fumée afin, par voie de conséquence, d'augmenter les temps de fonctionnement de l'installation.
PCT/EP2007/000751 2006-01-30 2007-01-29 Dispositif et procédé destinés à séparer des polluants dans un gaz de fumée d'une installation thermique WO2007085490A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07703107A EP1979679A1 (fr) 2006-01-30 2007-01-29 Dispositif et procédé destinés à séparer des polluants dans un gaz de fumée d'une installation thermique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006004221.2 2006-01-30
DE200610004221 DE102006004221A1 (de) 2006-01-30 2006-01-30 Vorrichtung und Verfahren zum Abscheiden von Schadstoffen im Rauchgas einer thermischen Anlage

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* Cited by examiner, † Cited by third party
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DE202013001669U1 (de) 2013-02-21 2013-04-10 Elke Esterka Anlage mit Biomassen-Mischverbrennung
DE102013018605A1 (de) * 2013-11-07 2015-05-07 RERUM COGNITIO Institut GmbH Verfahren zur Nutzung von Biomasse auch für Hochtemperaturprozesse und deren Anwendung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58195709A (ja) * 1982-05-12 1983-11-15 Mitsubishi Heavy Ind Ltd 煤吹機
DE3919124A1 (de) * 1989-06-12 1990-01-18 Haji Javad Mehdi Dr Ing Verfahren zur abscheidung von polyzylkischen kohlenwasserstoffen und schwermetallen aus abgasen
WO2000029666A1 (fr) * 1998-11-16 2000-05-25 Anthony-Ross Company Procede et appareil d'injection de sulfate de soude dans une chaudiere de recuperation
CH691507A5 (de) * 1995-08-23 2001-07-31 Theodor Koch Verfahren und Vorrichtung zum Verbrennen von festem und/oder pastösem Material in Rost-Feuerungsanlagen.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1930301A1 (de) * 1969-06-14 1971-02-11 Martin Feuerungsbau Abfallverbrennungsanlage
DE2518128C3 (de) * 1975-04-24 1978-11-16 Kernforschungsanlage Juelich Gmbh, 5170 Juelich Verfahren zum Reinigen von in Verbrennungsanlagen entstehenden Rauchgasen und Verbrennungsanlage
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
SE448257B (sv) * 1985-01-23 1987-02-02 Ragn Sellsforetagen Ab Sett och anordning for att genom kylning rena rokgaser fran sopforbrenning samt dervid utvinna vermeenergi
DE19922605A1 (de) * 1999-05-17 2000-11-23 Asea Brown Boveri Verfahren zur Verbrennung von Müll mit anschliessender Wärmerückgewinnung sowie Kessel zur Durchführung des Verfahrens
NL1015438C2 (nl) * 2000-06-14 2001-12-17 Amsterdam Gem Dienst Afvalverw Hoogrendements afvalverbrandingsinstallatie.
JP3781706B2 (ja) * 2001-10-05 2006-05-31 川崎重工業株式会社 灰溶融型ｕファイアリング燃焼ボイラの運転方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58195709A (ja) * 1982-05-12 1983-11-15 Mitsubishi Heavy Ind Ltd 煤吹機
DE3919124A1 (de) * 1989-06-12 1990-01-18 Haji Javad Mehdi Dr Ing Verfahren zur abscheidung von polyzylkischen kohlenwasserstoffen und schwermetallen aus abgasen
CH691507A5 (de) * 1995-08-23 2001-07-31 Theodor Koch Verfahren und Vorrichtung zum Verbrennen von festem und/oder pastösem Material in Rost-Feuerungsanlagen.
WO2000029666A1 (fr) * 1998-11-16 2000-05-25 Anthony-Ross Company Procede et appareil d'injection de sulfate de soude dans une chaudiere de recuperation

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