EP3185993A1 - Dispositif de traitement et procédé pour le traitement d'un flux de gaz d'échappement - Google Patents

Dispositif de traitement et procédé pour le traitement d'un flux de gaz d'échappement

Info

Publication number
EP3185993A1
EP3185993A1 EP15756379.2A EP15756379A EP3185993A1 EP 3185993 A1 EP3185993 A1 EP 3185993A1 EP 15756379 A EP15756379 A EP 15756379A EP 3185993 A1 EP3185993 A1 EP 3185993A1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
separation
cleaning
exhaust
cleaning device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15756379.2A
Other languages
German (de)
English (en)
Inventor
Erhard Rieder
Martin Schröter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
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 Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP3185993A1 publication Critical patent/EP3185993A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/343—Heat recovery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2407—Filter candles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8631—Processes characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8643—Removing mixtures of carbon monoxide or hydrocarbons and nitrogen oxides
    • B01D53/8646—Simultaneous elimination of the components
    • B01D53/8653—Simultaneous elimination of the components characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8659—Removing halogens or halogen compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/50—Carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/204—Inorganic halogen compounds
    • B01D2257/2045—Hydrochloric acid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/204—Inorganic halogen compounds
    • B01D2257/2047—Hydrofluoric acid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/502—Carbon monoxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/65—Employing advanced heat integration, e.g. Pinch technology
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Definitions

  • the present invention relates to a treatment device for treating an exhaust gas flow, in particular a carbon monoxide-containing exhaust gas flow.
  • a carbon monoxide-containing exhaust gas stream is, for example, an exhaust gas stream from an FCC (Fluid Catalytic Cracking) plant, which is produced, for example, by regeneration of a catalyst of an FCC plant by partial oxidation of carbon deposits.
  • FCC Fluid Catalytic Cracking
  • forced regenerator operation under oxygen depletion may cause the carbon to be partially oxidized to carbon dioxide.
  • a proportion of 4 to 10% by volume can leave the regenerator as carbon monoxide.
  • This carbon monoxide amount represents a usable calorific value of the order of magnitude of up to 1.5 megajoules per cubic meter in the standard state (MJ / m 3 i.N). This calorific value can be used, for example, in a so-called CO boiler to generate steam become.
  • nitrogen oxides of the order of magnitude between 50-400 ppm vol. are produced during regeneration of the catalyst at about 715 ° C.
  • sulfur bound in the coke can amount to up to 30% of the sulfur present in the feed , in the regenerator to S0 2 and S0 3 ( ⁇ 10%) and implemented in the
  • Another source of emission is the discharge of cracking catalyst from the regenerator on the order of up to 10 g / bbl use, which is essential for increasing particulate matter on the order of 30 - 80%. Contributes to the dust content, but also by fouling to
  • the known devices and methods for fluid catalytic cracking require, for example, a series connection of three or more processes, which are provided in each case optimal process conditions, in particular at reduced temperature, in a sequence of a CO boiler.
  • the cleaning processes are thus typically carried out in the exhaust gas stream leaving the CO boiler.
  • the present invention has for its object to provide a treatment device, which efficient energy use in the
  • a treatment device for treating a carbon monoxide-containing exhaust gas flow which comprises the following:
  • a combination of at least two of the aforementioned method for the environmental treatment of exhaust gases or venting preferably understood a combination of at least two of the aforementioned method for the environmental treatment of exhaust gases or venting.
  • Under a desulfurization of an exhaust gas or a Exhaust air is understood to mean in particular an induced by a suitable commercial process lowering an SO x concentration of the exhaust gas and / or exhaust air.
  • a denitrification of an exhaust gas or an exhaust air is understood to mean, in particular, a lowering of an NO x concentration of the exhaust gas and / or exhaust air brought about by means of a suitable technical process.
  • deacidification of an exhaust gas or an exhaust air is understood to mean, in particular, a lowering of a concentration of acid constituents of the exhaust gas and / or exhaust air (for example HF, HCL, etc.) brought about by means of a suitable technical process.
  • a detoxification preferably toxic components (eg dioxins, furans, etc.) are removed from an exhaust gas or an exhaust air by a suitable technical process or at least their concentration is lowered.
  • a dedusting are mainly solid ingredients, eg. As particles, agglomerates, coagulates and / or ashes, from an exhaust or an exhaust air via a separator (separator) deposited, separated, screened and / or filtered out.
  • thermal energy carrier is to be understood in particular as a medium by means of which thermal energy can be stored and / or transferred.
  • a thermal energy carrier is, for example, a heated, heated and / or vaporized fluid, for example water, and / or a hot gas, in particular hot exhaust gas.
  • the treatment device according to the invention comprises a cleaning device, by means of which the exhaust gas stream to be supplied to the conversion device can be cleaned, a purification of the exhaust gas flow with optimized energy efficiency is possible.
  • This cleaning is thus in particular upstream in an inlet of the conversion device, for example a CO boiler and / or a gas turbine plant, in particular a micro gas turbine plant provided.
  • a gas turbine plant in particular a micro gas turbine plant, for the treatment and / or energetic utilization of combustible constituents containing exhaust gas or exhaust air is known, which has a burner with a heated combustion chamber.
  • This system has a gaseous medium permeable
  • Reaction space having an inlet opening through which the exhaust gas or the exhaust air flows into the reaction space.
  • the reaction chamber has an outlet opening through which the exhaust gas or the exhaust air from the
  • Reaction space passes into a hot gas duct for the discharge of treated exhaust gas from the reaction space.
  • the exhaust gas containing flammable components or the exhaust air is burned together with strong gas.
  • Flammable gas or gas mixture, the calorific value HA is above 15 MJ / Nm 3 , in this context as so-called
  • the calorific value of lean gas is considerably reduced.
  • the strong gas burned in the plant can be z.
  • natural gas especially bio natural gas act.
  • the cleaning device comprises a supply device for supplying at least one additive to the exhaust gas flow.
  • a supply device for supplying at least one additive to the exhaust gas flow.
  • a mixture, a dispersion, an emulsion and / or a solution of additives wherein the components of the mixtures, dispersions, emulsions and / or solutions may be solid, liquid and / or gaseous.
  • Such an additive is preferably characterized in that the additive at least one in the
  • Cleaning device provided and / or favoring the exhaust gas stream deposition, cleaning and / or implementation process favors, supports and / or is necessary for this.
  • the supply device may for example comprise a nozzle grid, by means of which a large area and / or punctiform additive to the exhaust gas stream can be fed.
  • the delivery device may preferably further comprise and / or form a mixing device.
  • the mixing device By means of the mixing device are preferably one or more additives and / or the exhaust gas of the exhaust stream mixed together.
  • Mixing device for example, a mixing chamber and / or a
  • a mixer e.g., an agitator in which one or more additives and / or the exhaust gas of the exhaust stream are mixable with each other or mixed together.
  • One or more mixing elements are designed, for example, as a mixing wheel or cell wheel.
  • mixing elements formed as baffle plates, swirl generators and / or turbulence generators may be provided.
  • an ammonia-containing and / or lime-containing additive can be fed to the exhaust gas stream by means of the feed device.
  • an ammonia-air mixture or aqueous ammonia can be fed to the exhaust gas stream by means of the feed device.
  • a nitrogen oxide measurement is carried out at an outlet of the cleaning device by means of a measuring device of the treatment device.
  • an amount of the added additive can be selectively controlled and / or regulated by means of the feed device.
  • a lime-containing additive is, for example, an aqueous lime solution.
  • a sulfur oxide measurement is carried out at an outlet of the cleaning device by means of a measuring device of the cleaning device. Depending on the measured amount of sulfur oxide and / or concentration, an amount of the
  • a control device of the treatment device is preferably provided.
  • the control device is preferably set up and configured in such a way that the amount of the added additive supplied by means of the control device can be reduced by a certain amount. is controllable and / or controllable by a measured amount of nitrogen oxide and / or a measured amount of sulfur oxide.
  • the cleaning device a
  • Separating device in particular a filter device comprises.
  • the separation device By means of the separation device, it is possible for a solids content to be separated from the exhaust gas stream.
  • the separation device may, for example, be a catalyst separation device, in particular a catalyst separation device for the conversion of nitrogen oxides.
  • Catalyst separation device is understood to mean, in particular, a separating or filtering device in whose throughput direction or path at least partially catalytically active material is arranged, received or provided.
  • the flow direction or the throughput path is understood to mean, in particular, the passage of the fluid, exhaust gas or exhaust air flow to be cleaned through the separating or filtering device.
  • a catalytically active material is understood to be a substance or a mixture of substances, which is a chemical reaction reaction of at least one component of the fluid, exhaust or exhaust air stream into another
  • Composition favors or allows.
  • the separation device can be, for example, a catalyst separation device, in particular a catalyst separation device for the conversion of nitrogen oxides and
  • Hydrocarbons for example volatile organic compounds (VOC), dioxins, furans, etc.
  • the separation device preferably comprises one or more
  • One or more separation elements are preferably designed as filter elements.
  • a filter element is in particular a surface filter or a depth filter.
  • deposition preferably takes place by an addition of particles to be separated on a filter cake, which forms on the filter.
  • the actual deposition effect preferably results from the incorporation of the particles to be separated into the filter element.
  • one or more separating elements are preferably provided, which are designed as electrostatic precipitators, cyclone separators, wet scrubbers and / or water separators.
  • One or more separation elements of the separation device are preferably designed as filter cartridges.
  • a separating element in particular a filter element, preferably a filter candle, is preferably a hollow cylinder-shaped, in particular hollow-cylindrical, element.
  • cross-sectional geometries of higher order have the advantage of providing larger shell surfaces on the separation element.
  • a separation element is preferably formed closed on one side.
  • it may be provided that one end of a hollow cylindrical, in particular hollow cylindrical, element is closed, while the other end is open.
  • a separating element can preferably be flowed through in the radial direction with respect to a longitudinal axis and / or axis of symmetry from outside to inside with an exhaust gas stream to be cleaned.
  • a closed end of a separation element preferably projects into a raw gas space of a separation chamber of the separation device.
  • An open end of a separation element preferably faces a clean gas space of a separation chamber of the separation device.
  • An interior of a separation element, in particular a hollow cylindrical, for example hollow cylindrical, element, is preferably open to a clean gas space of the deposition chamber.
  • the separation device comprises one or more separation elements which have a basic body.
  • the main body is preferably provided with one or more coatings.
  • the base body is provided with one or more fillings.
  • the main body is preferably a dimensionally stable component, which predetermines a basic shape of a separating element.
  • the main body preferably forms a support structure or a carrier for further constituents of the precipitation element, in particular for one or more coatings and / or one or more fillings.
  • the base body is at least partially gas-permeable.
  • openings may be provided in the base body, which arise in particular due to the macroscopic shape of the base body.
  • the base body can be at least partially permeable to gas due to the material, for example, such a material-related gas permeability can result in an open-pore or open-cell material.
  • a coating in this description and the appended claims is to be understood in particular as meaning that an inner and / or outer surface of the base body is provided with an additional material (coating material).
  • a gas permeability of the body is preferably not limited thereto.
  • a gas-permeable, for example open-pore or open-cell, structure of the main body can preferably be retained.
  • a filling is in particular a partial or complete filling a cavity of the body to understand.
  • a gas permeability of the base body is prevented, unless the filler itself is gas-permeable.
  • a coating can form a protective layer.
  • a coating may comprise polytetrafluoroethylene (PTFE), polypropylene (PP), polyethylene (PE) and / or polyamide (PA) or may consist of one or more of the materials mentioned.
  • PTFE polytetrafluoroethylene
  • PP polypropylene
  • PE polyethylene
  • PA polyamide
  • Coating the body is provided with a protective layer formed as a coating and / or one or more fillings.
  • the main body comprises a plastic material, a ceramic material, a vitreous material and / or a metal material or is formed from a plastic material, a ceramic material, a vitreous material and / or a metal material.
  • an organic glassy material may be provided, in particular plastic, which has an amorphous structure.
  • an inorganic glassy material may be provided, in particular silicate glass, quartz glass, etc.
  • a vitreous material is, for example, a glass fiber-like material, in particular a glass fiber material.
  • a ceramic material is or includes, for example, cordierite and / or mullite.
  • the base body is formed from a hardened and / or stiffened metal foam.
  • the base body comprises in particular an open-pore or open-cell metal foam.
  • a metal material in particular a material of an open-pore or open-cell metal foam, may be, for example, a corrosion-resistant steel, in particular a FeCrAl alloy.
  • the base body comprises an aluminum foam material or is formed from an aluminum foam material.
  • the base body comprises a sintered metal or is formed as a sintered metal component.
  • the main body has a hollow spherical structure and / or is formed from a material having a hollow spherical structure.
  • the main body comprises a metal grid, which is formed for example of iron or palladium. Grid cells of the metal grid are then, for example, with a filling, in particular a gas-permeable catalytically active
  • the precipitation element may be provided by further developing a metal grid by filling the grid cells to form a substantially closed layer.
  • a separating element formed as a filter candle can then preferably be formed. Only one of the two initially open ends of the separation element is then preferably still closed. This separating element can then finally be provided with a further coating, for example a protective layer.
  • a coating, in particular a protective layer, for example, a perforated and / or otherwise GASD urchine foil, a net, a physika ⁇ l ic and / or chemical coating, and / or a vapor deposition on the base body or a further coating of a separating element can be.
  • the base body is provided with one or more gas-permeable and / or catalytically active coatings.
  • the basic body is provided with one or more gas-permeable and / or catalytically effective Fül lungs.
  • catalytic activity is to be understood in this specification and the appended claims in particular that pollutants, in particular noxious gases, the exhaust gas flow through contact with the catalytically active coating and / or the catalytically active filling can be converted more efficiently chemically, in particular d Reduction of an activation energy and / or by shifting an equilibrium point of an equilibrium reaction.
  • a catalytically active coating and / or a catalytically active filling may, for example, comprise one or more of the following materials or consist of one or more of the following materials: copper, nickel, nickel oxide, palladium, platinum, rhodium, gold and / or other catalytically active elements and / or compounds. Furthermore, a
  • a catalytically active (catalytically active) material is chemically and / or physically taken up in and / or bonded to and / or bonded to a material forming the coating, the filling and / or the base body.
  • a coating and / or a filling of a separating element is preferably chemically and / or physically connected to the base body.
  • Separating device comprises one or more deposition elements, which have a structured surface.
  • a structured surface may for example be a surface which has a wavy and / or zig-zag-shaped course, in particular with respect to a longitudinal section taken parallel to a longitudinal axis or axis of symmetry of a separating element.
  • the separation device comprises a deposition chamber, which preferably comprises the following:
  • a discharge section through which a purified exhaust gas flow from the interior of the deposition chamber can be discharged
  • a receiving device for receiving, arranging and / or fixing one or more separation elements of the separation device.
  • one or more separation elements of the separation device are detachably, interchangeably fixed or fixable on the receiving device.
  • the receiving device in particular comprises a substantially plate-shaped element which is provided with passage openings.
  • the separation elements of the separation device can be arranged, in particular releasably fixed.
  • a feed section of the deposition chamber preferably comprises an inlet opening and / or an inlet connection.
  • a discharge section preferably comprises an outlet opening and / or an outlet connection.
  • a flow path between the feed section, in particular the inlet connection, and the discharge section, in particular the outlet connection, is provided such that an exhaust gas stream entering the interior of the separation chamber through the feed section must flow or pass through the one or more separation elements, to get to the Abrrabites and be discharged over this.
  • the cleaning device comprises a backwash device for cleaning the separation device.
  • the backwash device is preferably a fluid flow in the reverse direction generated to solids and other residues and deposits of one or more separation elements of
  • the fluid flow in the reverse direction is, in particular, a fluid flow, which is opposite to that direction in which the exhaust gas flow flows through the separation device in a separation operation of the separation device.
  • the backwashing device may be, for example, a compressed air device.
  • a compressed air device preferably comprises one or more cleaning lances, by means of which compressed air pulses in the interior spaces of the one or more deposition elements can be introduced, in particular to achieve a flow in the radial outward direction and thus a cleaning of impurities from a radially outer surface of the separation elements ,
  • the cleaning device comprises a discharge device, by means of which separated from the exhaust gas flow solids are discharged.
  • a discharge device may for example be a discharge device.
  • a discharge device may comprise one or more conveyor belts and / or one or more rotary valves.
  • filter cake fragments, dusts, etc. are preferably dissipated.
  • an exhaust system is provided such that the gas stream is mixed with the supplied additive or with the added additives and also a suitable residence time for the reaction of, for example, sulfur oxide to calcium sulfite and / or calcium sulfate
  • a solids content of the exhaust gas flow is preferably deposited on the surface of the separation element before entering a separation element.
  • Nitrogen oxide in the exhaust stream is preferably when passing through the
  • Separating element of the separator implemented with supplied ammonia to nitrogen and water, in particular using a catalytic coating or catalytic mass of
  • a filter cake can preferably be removed at the separation element of the separation device.
  • the material forming the filter cake can preferably be removed from the entire cleaning device.
  • process stages for denitrification, desulfurization and dedusting of the exhaust gas stream are integrated into a common process stage and / or reduced to a single process stage.
  • An installation location of this one process stage is preferably laid in an inlet of an energy recovery device, in particular in a region in which, for example, optimal temperatures prevail for the catalyst separation device.
  • a deposited on the filter device filter cake can preferably be removed dry, resulting in a non-critical handling, processing and storage may result. In addition, preferably investment costs can be saved.
  • the present invention further relates to a method of treating a carbon monoxide-containing exhaust stream.
  • the invention is in this respect the task of providing a method by which an energy-efficient treatment of a carbon monoxide-containing exhaust gas stream is feasible.
  • the method according to the invention preferably has one or more of the features and / or advantages described in connection with the treatment device according to the invention.
  • the cleaning of the exhaust gas flow preferably comprises the following:
  • Pollutant in particular a noxious gas.
  • the waste gas stream is preferably passed through one or more separating elements formed as filter candles for cleaning the same.
  • the exhaust gas flow thereby heat can be withdrawn, which would otherwise be released unused to the environment.
  • feed gas stream is fed, added and / or admixed by means of a feed device with an additive, for example an ammonia-containing and / or lime-containing additive.
  • an additive for example an ammonia-containing and / or lime-containing additive.
  • the separation device is for removing
  • Flow direction of the separator is opposite in a deposition operation.
  • the present invention further relates to the use of a treatment device, in particular a treatment device according to the invention, for the treatment of a carbon monoxide-containing exhaust gas stream, in particular according to the inventive method.
  • the use according to the invention preferably has one or more of the features and / or advantages described in connection with the treatment device according to the invention and / or the method according to the invention.
  • the cleaning device is arranged upstream of the conversion device.
  • upstream refers to the flow direction of the exhaust gas stream to be treated.
  • the treatment device according to the invention, the method according to the invention and / or the use according to the invention preferably also have one or more of the features and / or advantages described below.
  • the separation device preferably comprises one or more
  • Separating elements comprising, for example, a ceramic material which is impregnated with a catalytic mass.
  • the exhaust gas stream supplied to the cleaning device is process exhaust air of an expansion turbine of a regenerator.
  • the process exhaust air may, for example, be mixed exhaust air from a first stage of a regenerator (first regeneration stage) and a second stage waste heat boiler of the regenerator (second regeneration stage).
  • the exhaust gas flow to be supplied to the cleaning device is exclusively process exhaust air of a first stage of a regenerator or of a waste heat boiler of a second stage of the regenerator.
  • an exhaust system is provided such that the gas stream is mixed with the supplied additive or with the added additives and also a suitable residence time for the reaction of, for example, sulfur oxide to calcium sulfite and / or calcium sulfate
  • a solids content of the exhaust gas flow is preferably deposited on the surface of the separation element before entering a separation element.
  • Nitrogen oxide in the exhaust stream is preferably when passing through a
  • Separating element of the separator implemented with ammonia supplied to nitrogen and water, in particular using a
  • a filter cake can preferably be removed at the separation element of the separation device.
  • the material forming the filter cake can preferably be removed from the entire cleaning device.
  • process stages for denitrification, desulfurization and dedusting of the exhaust gas stream are integrated into a common process stage and / or reduced to a single process stage.
  • An installation location of this one process stage is preferably laid in an inlet of the CO boiler, in particular in a region in which, for example, optimal temperatures prevail for the catalyst separation apparatus.
  • a CO boiler preferably has a lower pressure loss and an increased using the described cleaning device
  • a deposited on the separation device filter cake can
  • a CO boiler is in particular a conversion device for the conversion of carbon monoxide into carbon dioxide using the energy released thereby to provide a thermal energy carrier, in particular for providing a heated, heated, superheated and / or vaporized fluid, for example for the evaporation of water.
  • a thermal energy carrier is in particular a fluid understood, which in the CO boiler of a first, lower valued
  • Subsequent process can be supplied, wherein at least part of an energy difference between the second and the first energy state to the subsequent process, in particular an energy absorber of the
  • Succession process can be transferred.
  • thermal energy of a conversion device in particular of a CO boiler, is converted into electrical energy, for example by means of an Organic Rankine Cycle (ORC) plant.
  • ORC Organic Rankine Cycle
  • the cleaning device preferably comprises a separation device for separating particles from the exhaust gas flow and / or for the catalytic conversion of at least one pollutant, in particular a noxious gas, from the exhaust gas flow.
  • particles in this specification and the appended claims are solid, liquid and / or gaseous impurities in the
  • Solid and / or liquid impurities are preferably deposited by means of the deposition device, in particular filtered.
  • Gaseous impurities, which in particular form a noxious gas of the exhaust gas stream, are preferably catalytically reacted, ie chemically converted, preferably into less harmful substances by means of the precipitator.
  • pollutants are substances or mixtures of substances which can be harmful to humans, animals, plants or other organisms as well as entire ecosystems. Damage can result from ingestion of the pollutants by the organisms or entry into an ecosystem or its biomass.
  • a substance is preferably harmed by its Defined impact on an ecosystem, for example, from the microbes to the plant, animal and human.
  • a pollutant is especially a harmful substance in the true sense of the word, if its amount and / or concentration is above the statutory limits.
  • the supply device comprises a nozzle grid or another injection device by means of which one or more additives can be supplied to the exhaust gas flow over a large area and / or at points.
  • a supply device comprises, for example, a plurality of nozzles arranged in the form of a matrix, which are arranged distributed uniformly, in particular, in a plane extending perpendicular to a flow direction of the exhaust gas flow.
  • the supply device comprises one or more inflow devices, by means of which one or more additives transversely, in particular perpendicular, to a
  • Flow direction of the exhaust stream can be introduced into the exhaust stream.
  • a separator designed as a catalytic separator is in particular a combination of a catalyst and a particle trap.
  • the separation device allows operation at temperatures of at least about 300 ° C, for example at least about 450 ° C, especially about 600 ° C.
  • a separation device preferably has a high specific volumetric flow density, that is to say that a volume flow of the exhaust gas flow relative to the volume of the precipitator (separation device) is very large.
  • FIG. 1 shows a schematic representation of a fluid catalytic cracking system (FCC system) according to the known prior art
  • FIG. 2 is a schematic representation of an advantageous development of an FCC system corresponding to FIG. 1;
  • FIG. 2 is a schematic representation of an advantageous development of an FCC system corresponding to FIG. 1;
  • FIG. 3 shows a schematic vertical longitudinal section through an embodiment of a separating device of a cleaning device
  • Fig. 4 is an enlarged view of a separation element of
  • FIG. 5 shows an enlarged representation of the region A of a first embodiment of a separation element, in which a gas-permeable raised surface structure with at least partial catalytic coating is provided;
  • FIG. 6 shows a schematic section through the separation element from FIG.
  • FIG. 7 shows a schematic representation corresponding to FIG. 5 of a second embodiment of a separating element, which comprises a hollow-cylindrical carrier (main body) with an at least partial catalytic coating; 8 shows a schematic section through the separation element from FIG. 7 in the area VIII in Fig. 7;
  • FIG. 9 is a schematic illustration, corresponding to FIG. 5, of a third embodiment of a separating element, which comprises a basic body designed as a grid with catalytic inserts filling up the grid structure;
  • FIG. 10 shows a schematic section through the separation element from FIG.
  • FIG. 11 is a schematic representation corresponding to FIG. 5 of a fourth embodiment of a separation element which comprises a gas-permeable wall structure with at least partial catalytic coating on an inner side and / or an outer side of the wall structure;
  • FIG. 12 is a schematic section through the separation element from FIG.
  • FIG. 1 illustrated embodiment of a designated as a whole with 100 FCC system (Fluid Catalytic Cracking system) is the material conversion in the petroleum processing industry.
  • FCC unit 100 is used to convert heavy petroleum fractions into olefins
  • An FCC unit 100 includes a cracking apparatus 102 in which the actual conversion process of the petroleum feed oil is performed.
  • the cracking device 102 comprises a cracking section 104, to which crude oil can be supplied via a crude oil feed 106.
  • the resulting products are discharged via a product removal 108 of the cracking device 102.
  • catalyst material is used, which is regenerated in, for example, two regeneration stages 110, in particular a first regeneration stage 110a and a second regeneration stage 110b, of the cracking apparatus 102 after use in the cracking section 104.
  • two regeneration stages 110 in particular a first regeneration stage 110a and a second regeneration stage 110b, of the cracking apparatus 102 after use in the cracking section 104.
  • coke is removed from the catalyst material, which is reflected in the conversion of the crude oil on the same.
  • the catalyst material is reused in the cracking section 104 after regeneration.
  • the regeneration of the catalyst material produces exhaust gas which may contain a large number of pollutants.
  • this exhaust gas comprises nitrogen oxides (NO x ) and sulfur oxides (SO x ) as well as solid particles.
  • the exhaust gas further comprises carbon monoxide, which arises in particular due to an oxygen deficiency in the regeneration stages 110 by incomplete oxidation of carbon-containing particles, in particular coke.
  • the carbon monoxide is in the embodiment of an FCC system 100 shown in FIG. 1 in a so-called CO boiler 112 to carbon monoxide. converted dioxide, in particular oxidized.
  • the released energy is used in the CO boiler 112 to evaporate water.
  • CO boiler 112 By means of the CO boiler 112 can thus be used in the exhaust gas from the regeneration stages 110 contained chemical energy for steam supply.
  • the FCC unit 100 further comprises a waste heat boiler 114 for utilizing waste heat of the exhaust gas discharged from the regeneration stages 110, in particular the second regeneration stage 110b.
  • the waste heat boiler 114 is thus preferably flowed through by an exhaust gas flow from the second regeneration stage 110b.
  • exhaust gas from the first regeneration stage 110a can be supplied to the CO boiler 112.
  • the FCC plant 100 comprises a denitrification device 116, a desulfurization device 118 and a separation device 120.
  • nitrogen oxides can be removed from the exhaust gas flow, in particular by chemical conversion into nitrogen and further products.
  • sulfur oxides can be removed from the exhaust gas flow, in particular by conversion of the sulfur oxides into calcium sulfite or calcium sulfate (gypsum).
  • the separating device 120 which is designed for example as an electrostatic precipitator, are preferably
  • the exhaust gas flow purified by means of the denitrification device 116, the desulfurization device 118 and the separation device 120 is finally deliverable to the environment by means of an exhaust air discharge 122 of the FCC system 100.
  • FIG. 2 illustrated second embodiment of an FCC plant 100 differs from the first embodiment shown in FIG. 1 essentially in that the purification of the exhaust gas flow before it is supplied to the CO boiler 112.
  • the FCC unit 100 comprises a cleaning device 124 for this purpose.
  • exhaust gas from the first regeneration stage 110a and / or exhaust gas from the second regeneration stage 110b can be supplied to the cleaning device 124.
  • the cleaning device 124 can be supplied with exhaust gas passed through the waste heat boiler 114 from the second regeneration stage 110b and exhaust gas discharged directly from the first regeneration stage 110a.
  • the cleaning device 124 is arranged upstream of the CO boiler 112, so that the CO boiler 112 purified exhaust gas can be supplied.
  • the cleaning device 124 preferably comprises a supply device 126 for supplying an additive to the exhaust gas flow.
  • the additive is in particular an ammonia-containing and / or lime-containing additive, so that, in particular in the presence of a catalyst, on the one hand nitrogen oxides and on the other hand sulfur oxides can be removed from the exhaust gas stream.
  • the cleaning device 124 further comprises a separation device 128, by means of which solids can be separated from the exhaust gas stream.
  • the separation device 128 is a catalyst separation device 130 which provides the catalyst surface required to convert the nitrogen oxides.
  • the catalyst separation device 130 is for this purpose in particular as a
  • Separating device 128 is formed, which is provided with a catalytically active coating.
  • the cleaning device 124 further preferably comprises a mixing device 132, by means of which the exhaust gas flow on the one hand and the added additive (s) on the other hand can be mixed with one another.
  • the cleaning device 124 also comprises a backflushing device 134 and a discharge device 136.
  • the backwashing device 134 By means of the backwashing device 134, in particular a backwashing process of the separating device 128 can be carried out.
  • the separating device 128 is flowed through against a flow direction usual in the deposition operation in order to remove a filter cake from the separating device 128, in particular to blow it off.
  • the filter cake removed in this way is removable in particular by means of the discharge device 136.
  • the cleaning device 124 and the CO boiler 112 are part of a treatment device 138 for treating a carbon monoxide-containing exhaust gas stream.
  • the CO boiler 112 forms a conversion device 140 for the conversion of carbon monoxide into carbon dioxide using the released energy to evaporate water.
  • the cleaning device 124 By means of the cleaning device 124 it can be ensured that the exhaust gas flow is purified before being fed to the CO boiler 112, whereby a lower contamination and thus also a lower maintenance of the CO boiler 112 can result.
  • FCC system 100 functions as follows:
  • crude oil is introduced into the cracking section 104 of the cracking device 102 and thereby brought into contact with catalyst material.
  • the crude oil is thereby converted into a plurality of lighter petroleum fractions, which are removed via the product discharge 108.
  • the catalyst material is contaminated with the conversion of crude oil with coke and must therefore be regenerated before reuse.
  • This regeneration takes place in the two regeneration stages 110a, 110b.
  • the exhaust gas produced in the regeneration of the catalyst material is fed on the one hand via the waste heat boiler 114 and on the other hand directly to the cleaning device 124.
  • an ammonia-containing additive for example an ammonia-air mixture, is supplied to the exhaust gas stream.
  • a lime-containing additive in particular aqueous lime solution, is supplied to the exhaust gas flow by means of the feed device 126.
  • the exhaust gas stream is mixed with the supplied additives, so that in particular the sulfur oxides can react with the lime-containing additive to form gypsum.
  • the ammonia-containing additive and nitrogen oxides contained in the exhaust stream react together to form nitrogen and other products at the catalyst separator 130 to remove the nitrogen oxides from the exhaust stream.
  • a measuring device and / or a control device of the cleaning device 124 may also be a control and / or regulation of the supply 126 such that the supply of ammonia-containing and / or lime-containing additive depending on a determined nitrogen oxide content or sulfur oxide content of the exhaust gas flow leaving the cleaning device 124 is controlled and / or regulated.
  • a backwashing process is carried out by means of the backwash device 134, in which the catalyst separation device 130 flows through in a flow direction, which is the
  • Flow direction in the deposition operation of the catalyst separation device 130 is opposite.
  • the filter cake deposited on the catalyst separator 130 can thereby be easily blown off the catalyst separator 130.
  • this filter cake can ultimately be removed and fed to a disposal.
  • the exhaust gas stream leaving the cleaning device 124 is thus supplied to the CO boiler 112 as a purified exhaust gas stream in order to utilize the energy still contained in the form of carbon monoxide therein for generating steam.
  • the in Fig. 2 illustrated second embodiment of the FCC system 100 in terms of structure and function with the in Fig. 1, so that reference is made to the above description thereof.
  • the conversion device 140 is used for converting tion of carbon monoxide in carbon dioxide using the energy released thereby a gas turbine plant 142, in particular one
  • Micro gas turbine plant 142 comprises or by a gas turbine plant 142, in particular a micro gas turbine plant 142, is formed.
  • Microturbine plant 142 can by the use of a
  • Gas turbine plant 142 in particular micro gas turbine plant 142,
  • the gas turbine plant 142 in particular micro gas turbine plant 142, may in particular be thermally coupled with other components of the FCC plant 100, for example with the waste heat boiler 114.
  • the gas turbine plant 142 in particular micro gas turbine plant 142, may in particular be thermally coupled with other components of the FCC plant 100, for example with the waste heat boiler 114.
  • Gas turbine plant 142 in particular micro gas turbine 142, generated heat can thereby contribute to a more efficient operation of the FCC plant 100.
  • Conversion device 140 a thermal energy source and / or electrical energy can be provided.
  • a thermal energy carrier can be, for example, a heated, heated and / or vaporized fluid, for example water, and / or a hot gas, in particular hot exhaust gas.
  • thermal energy of the exhaust gas stream from the CO boiler 112 is used to generate electrical energy, for example by means of an Organic Rankine Cycle Plant (ORC plant).
  • ORC plant Organic Rankine Cycle Plant
  • Fig. 3 is an embodiment of a deposition apparatus 1108
  • cleaning device 124 which is preferably used as a separating device 128 of the type shown in FIG. 2 shown cleaning device 124 is used.
  • the separator 1108 is designed as a catalyst separator 1110 and serves on the one hand to the filtering deposition of particles, in particular solids, and on the other hand, the catalytic
  • the separator 1108 includes a deposition chamber 1124.
  • the deposition chamber 1124 includes a supply section 1126, which preferably includes an input port 1128 and / or an input port 1130.
  • an exhaust gas stream 1102 to be cleaned can be introduced into an inner space 1132 of the separation chamber 1124.
  • a valve device 1134 or flap device 1136 arranged in the feed section 1126 preferably serves to control and / or
  • the deposition chamber 1124 further comprises a discharge section 1138, which preferably has an exit opening 1140 and / or a
  • Output terminal 1142 includes. Via the discharge section 1138, the purified in the separation chamber 1124 exhaust gas can be discharged.
  • a valve device 1134 and / or a flap device 1136 is preferably provided in the discharge section 1138.
  • the interior 1132 of the deposition chamber 1124 is subdivided into a raw gas space 1144 and a clean gas space 1146.
  • the raw gas space 1144 and the clean room 1146 are separated from each other by a receiving device 1148 and a plurality of separating elements 1150 of the separating device 1108.
  • the receiving device 1148 serves to receive a plurality of separating elements 1150.
  • the receiving device 1148 is designed in particular as a partition wall 1152 of the inner space 1132 of the deposition chamber 1124.
  • the partition wall 1152 comprises a plurality of passage openings 1154 which form receptacles 1156 for the separation elements 1150.
  • the separation elements 1150 are in particular releasably fixed in the passage openings 1154.
  • a separating element 1150 is, for example, a substantially hollow-cylindrical body.
  • the separation element 1150 may be a substantially hollow cylindrical body.
  • hollow body 1150 may be used as a separating element.
  • generalized hollow cylinders with polygonal cross-sectional areas eg.
  • Star surfaces has the advantage of providing larger shell surfaces on the separation element 1150.
  • the separating element 1150 is preferably formed rotationally symmetrical about a longitudinal axis 1160 of the separating element 1150.
  • the longitudinal axis 1160 is thus an axis of symmetry 1162 of the separating element 1150.
  • a separation element 1150 preferably comprises a hollow cylindrical portion 1164, which along the longitudinal axis 1160 at one end to a
  • the open end 1168 is provided in particular with the collar 1158 for fixing the separating element 1150 to the receiving device 1148.
  • the separation element 1150 protrudes in the mounted state on the receiving device 1148 into the raw gas space 1144 of the separation chamber 1124, so that the closed end 1166 and also substantially the entire hollow cylindrical section 1164 are surrounded by raw gas during operation of the separation device 1108 , An inner space 1170 of the separating element 1150 is open towards the clean gas space 1146 by means of the open end 1168.
  • the separating element 1150 in particular the hollow cylindrical section 1164, is preferably gas-permeable, wherein pores provided for this purpose have such a small diameter that, although gaseous substances can pass through the hollow-cylindrical section 1154 of the separating element 1150, solids and liquids on an outer side 1172 of the Deposit separation element 1150.
  • the separation element 1150 is thus designed in particular as a surface filter 1174.
  • the separation element 1150 can consequently also be referred to as a filter element 1176.
  • the deposition element 1150 is formed of a ceramic and / or metallic material, this is preferably formed as a filter cartridge 1178.
  • the separation device 1108 preferably further comprises a
  • Backwash 1114 is formed.
  • the cleaning device 1180 then in particular comprises one or more backwashing lances 1182, by means of which a gas pressure surge,
  • each separation element 1150 in particular compressed air pulse, from a clean gas side facing the clean gas space 1146 of each separation element 1150 to the respective one
  • Abscheideelement 1150 can be issued.
  • the backwashing device 1114 can thus a gas flow in a
  • the cleaning device 1180 may also be referred to as a compressed air device 1184.
  • a cleaning device 1180 can be provided, by means of which a fluid, for example a cleaning liquid or a cleaning gas, can be introduced into the raw gas space 1144 of the separation chamber 1124 in order to be able to start at the
  • Sediments cleaned off from the separation elements 1150 fall downwards in the direction of gravity g onto a discharge device 1116 of the separation device 1108.
  • the discharge device 1116 is designed, for example, as a conveyor belt 1186 or conveyor belt 1188 and allows easy removal of cleaned impurities from the interior 1132 of the deposition chamber 1124.
  • a separation device 1108 then preferably comprises a plurality of substantially identically formed separation elements 1150. However, it may also be provided that a separation device 1108 comprises differently formed separation elements 1150, in which different features mentioned in this description and the appended claims are realized.
  • the embodiment of a separation device 1108 shown in FIG. 3 functions as follows:
  • the impurities contained in the exhaust gas stream 1102, in particular solids and noxious gases, are then sucked or pressed in the direction of the separation elements 1150.
  • the solids then deposit on the outsides 1172 of the separation elements 1150 because they are too large to pass through the separation elements 1150.
  • the noxious gases flow through the separation elements 1150, but in this case are brought into contact with a catalytically active material to be described, and are preferably converted into less harmful substances.
  • the separation elements 1150 are flowed through from outside to inside with respect to the axis of symmetry 1162 in the radial direction 1194. In the interiors 1170 of the separation elements 1150 thereby purified exhaust gas collects, which was freed in particular of solids and noxious gases.
  • the purified waste gas passes from the interior 1170 of the respective separation element 1150 into the clean gas space 1146 of the separation chamber 1124.
  • the purified exhaust gas is finally discharged from the interior 1132 of the separation chamber 1124.
  • valve devices 1134 and / or the flap devices 1136 By means of the valve devices 1134 and / or the flap devices 1136, a flow through the separation chamber 1124 with the exhaust gas flow 1102 can be regulated.
  • FIGS. 5 to 12 show different embodiments of separating elements 1150, which can be used as separating elements 1150 in the separating device 1108 shown in FIG.
  • separation elements 1150 can also be used in the separation device 1108, which uses other combinations of
  • Separating element 1150 is provided that the separating element 1150 comprises a base body 1190, which has two coatings 1192.
  • the coatings 1192 are arranged on the outer side of the main body 1190 on the outer side of the main body 1190 in a radial direction 1194 relative to the longitudinal axis 1160.
  • One of the coatings 1192 is formed as a protective layer 1196, which may optionally be provided on the deposition element 1150.
  • Coatings 1192 is considered to be a catalytically active
  • the protective layer 1196 is arranged on the catalytically active coating 1198, which in turn is arranged on the main body 1190.
  • the main body 1190 is in particular a porous carrier, which is formed, for example, from an aluminum foam or from sintered metal.
  • the catalytically active coating 1198 includes, for example, a material containing copper, nickel, nickel oxide, palladium, platinum, rhodium, gold and / or other catalytically active elements and / or compounds.
  • the catalytically active coating 1198 is preferably chemically and / or physically connected to the main body 1190.
  • the protective layer 1196 is formed, for example, from a polytetrafluoroethylene material (PTFE), from polypropylene (PP), polyethylene (PE) and / or polyamide (PA) or a combination of said materials.
  • PTFE polytetrafluoroethylene material
  • PP polypropylene
  • PE polyethylene
  • PA polyamide
  • the protective layer 1196 is particularly as a perforated or otherwise gas-permeable film, as a network or as a coating or
  • Both the main body 1190 and the catalytically active coating 1198 and the protective layer 1196 are preferably permeable only to gases, so that solids as a filter cake at the by the protective layer 1196th formed outside 1172 of the deposition element 1150 are deposited.
  • the deposition element 1150 has a structured surface.
  • a zigzag-shaped course of the surface of the separating element 1150 is formed by protrusions 1200 projecting outwards in the radial direction 1194.
  • a deposition element 1150 having a relatively large outer surface can be provided.
  • the first embodiment of a separation element 1150 shown in FIGS. 5 and 6 functions as follows:
  • the separating element 1150 is supplied with the exhaust gas to be cleaned.
  • Solids and other larger particles of the exhaust gas flow 1102 then deposit on the outside 1172 of the separating element 1150, in particular on the protective layer 1196, thereby forming a filter cake.
  • Gaseous constituents of the exhaust gas flow pass through the protective layer 1196, through the catalytically active coating 1198 and through the main body 1190 into the interior 1170 of the separating element 1150.
  • Harmful gases such as nitrogen oxides or non-volatile organic compounds (VOCs) may be chemically converted with the aid of an additive using the catalytically active coating 1198.
  • VOCs non-volatile organic compounds
  • Harmful gases may be chemically converted with the aid of an additive using the catalytically active coating 1198.
  • the interior 1170 of each separation element 1150 then preferably accumulates exhaust gas, which has been freed from solids and other particles as well as noxious gases.
  • FIGS. 7 and 8 illustrated second embodiment of a separating element 1150 differs from the first embodiment shown in FIGS. 5 and 6 essentially in that the base body 1190, the catalytically active coating 1198 and the protective layer 1196 are formed substantially hollow cylindrical and no projections 1200th exhibit.
  • Such a separating element 1150 is particularly simple and
  • Figs. 7 and 8 illustrated second embodiment of a separating element 1150 in terms of structure and function with the in Figs. 5 and 6 illustrated first embodiment, so that reference is made to the above description thereof in this regard.
  • FIGS. 9 and 10 illustrated third embodiment of a separating element 1150 differs from the second embodiment shown in FIGS. 7 and 8 substantially by the fact that the main body 1190 is formed as a grid 1202.
  • the main body 1190 thus comprises a multiplicity of passage openings 1204 arranged in the form of a matrix.
  • the passage openings 1204 are filled with a filling 1206.
  • the filling 1206 is in particular a catalytically active filling 1208.
  • the basic body 1190 provided with the catalytically active filling 1208 forms a continuous wall 1210 in which, in particular, a gas-impermeable or gas-permeable grid section of the grid 1202 and the catalytically active filling 1208, which is permeable to gas, alternate.
  • the deposition element 1150 according to the third embodiment shown in FIGS. 9 and 10 includes a protective layer 1196
  • Separating element 1150 forms and thus in the radial direction 1194 outside of the provided with the catalytic filling 1208 grating 1202 is arranged.
  • the in Figs. 9 and 10 illustrated third embodiment of the separating element 1150 can be prepared, for example, characterized in that the grid 1202 is provided with the catalytically active filling 1208.
  • the coating 1192 is preferably applied.
  • steps can preferably be carried out in one plane, that is to say substantially two-dimensionally.
  • the main body 1190 together with the filling 1208 and the protective layer 1196 is then preferably rolled up.
  • This rolling can lead to a single-layer or even a multi-layered configuration of the separating element 1150.
  • Embodiment of a deposition element 1150 in terms of structure and function with the second embodiment shown in FIGS. 7 and 8, so that reference is made to the above description thereof in this regard.
  • One in FIGS. 11 and 12 illustrated fourth embodiment of a separating element 1150 differs from that shown in FIGS. 7 and 8, essentially in that the main body 1190 is provided partially or completely in the radial direction 1194 on the outside with a catalytically active coating 1198.
  • the base body 1190 is provided partially or completely with a catalytically active coating 1198 on an inner side in the radial direction 1194.
  • the material of the main body 1190 is, for example, a foam, a woven fabric, a knitted fabric and / or a fiber composite.
  • An outer side 1172 of the separating element 1150 is also in the in Figs. 11 and 12 illustrated fourth embodiment of the deposition element 1150 by a protective layer 1196 formed.
  • FIGS. 11 and 12 illustrated fourth embodiment of a separating element 1150 in terms of structure and function with the second embodiment shown in FIGS. 7 and 8, so that reference is made to the above description in this regard.

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Abstract

L'invention concerne le dispositif de traitement et le procédé pour le traitement d'un flux de gaz d'échappement. L'invention vise à créer un dispositif pour le traitement d'un flux de gaz d'échappement contenant du monoxyde de carbone permettant une gestion efficace de l'énergie. A cet effet, ledit dispositif de traitement comprend : un dispositif de conversion (140) pour la conversion du monoxyde de carbone en dioxyde de carbone en utilisant l'énergie ainsi dégagée pour la préparation d'un support d'énergie thermique et/ou d'énergie électrique ; un dispositif de purification (124) pour la purification du flux de gaz d'échappement devant être conduit au dispositif de conversion.
EP15756379.2A 2014-08-29 2015-08-13 Dispositif de traitement et procédé pour le traitement d'un flux de gaz d'échappement Withdrawn EP3185993A1 (fr)

Applications Claiming Priority (2)

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DE102014112425.1A DE102014112425A1 (de) 2014-08-29 2014-08-29 Behandlungsvorrichtung und Verfahren zum Behandeln eines Abgasstroms
PCT/EP2015/068648 WO2016030200A1 (fr) 2014-08-29 2015-08-13 Dispositif de traitement et procédé pour le traitement d'un flux de gaz d'échappement

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EP3185993A1 true EP3185993A1 (fr) 2017-07-05

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WO2016030200A1 (fr) 2016-03-03
CN106659972A (zh) 2017-05-10
DE102014112425A1 (de) 2016-03-03

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