EP0657694B1 - Procédé d'élimination d'adsorbants contaminés provenant de la purification de fumée - Google Patents

Procédé d'élimination d'adsorbants contaminés provenant de la purification de fumée Download PDF

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Publication number
EP0657694B1
EP0657694B1 EP19940119577 EP94119577A EP0657694B1 EP 0657694 B1 EP0657694 B1 EP 0657694B1 EP 19940119577 EP19940119577 EP 19940119577 EP 94119577 A EP94119577 A EP 94119577A EP 0657694 B1 EP0657694 B1 EP 0657694B1
Authority
EP
European Patent Office
Prior art keywords
adsorbent
incinerated
contaminated
ground
grate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19940119577
Other languages
German (de)
English (en)
Other versions
EP0657694A2 (fr
EP0657694A3 (fr
Inventor
M. Dipl.-Ing. Kappen
Klaus Peter Grell
Heinrich Dipl.-Ing. Oldenkotte
M. Dr. rer. nat. Schäfer
H. Dipl.-Ing. Stöckmann
Johannes Dipl.-Ing. c/o Austrian Energy Sparrer
Siegfried c/o Austrian Energy Melcher
Rudolf c/o Austrian Energy Wagner
Michael c/o Austrian Energy Kainz
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.)
Ae Energietechnik rwe Energie Aktiengesellsch GmbH
Original Assignee
Austrian Energy and Environment AG and Co KG
Austrian Energy and Environment SGP Waagner Biro GmbH
RWE Energie 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 Austrian Energy and Environment AG and Co KG, Austrian Energy and Environment SGP Waagner Biro GmbH, RWE Energie AG filed Critical Austrian Energy and Environment AG and Co KG
Publication of EP0657694A2 publication Critical patent/EP0657694A2/fr
Publication of EP0657694A3 publication Critical patent/EP0657694A3/fr
Application granted granted Critical
Publication of EP0657694B1 publication Critical patent/EP0657694B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/006—General arrangement of incineration plant, e.g. flow sheets
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/80—Shredding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/10—Combustion in two or more stages
    • F23G2202/106—Combustion in two or more stages with recirculation of unburned solid or gaseous matter into combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/30—Sorption devices using carbon, e.g. coke

Definitions

  • the invention relates to a method for the combustion of pollutants from exhaust gas purification loaded adsorbents, especially carbon-containing absorbents, such as. B. activated coke, one Incinerator for household waste or household-like waste, with pre and post separation of pollutants released during combustion, with an adsorbent, especially brown coal coke, for the separation of organic harmful and / or inorganic Residues are used and the adsorbent loaded in the adsorber before its combustion is ground.
  • adsorbents especially carbon-containing absorbents, such as. B. activated coke, one Incinerator for household waste or household-like waste, with pre and post separation of pollutants released during combustion, with an adsorbent, especially brown coal coke, for the separation of organic harmful and / or inorganic Residues are used and the adsorbent loaded in the adsorber before its combustion is ground.
  • activated coke loaded with pollutants is normally legally declared as hazardous waste be disposed of in a hazardous waste incineration plant, unless it can be proven that the additional combustion in their own plant does not increase the pollution becomes.
  • the combustion of substances containing coal dust and also of activated coke is from DE-OS 3036504 known, but in the known systems there is the disadvantage that unburned substances containing pollutants can get onto the grate or into the ash funnel, so that the Pollutants also increase the amount of pollutants in the ashes and therefore not in the sense of legal exception are to be treated. In other words, the ashes should be one additional cleaning or special constructions are selected.
  • DE 39 29 663 A1 discloses a method for the thermal treatment of contaminated soil in a rotary kiln, in which the polluted coke from the flue gas cleaning is ground and burned together with the fuel in the rotary kiln.
  • the invention has therefore set itself the task of addressing the disadvantages and Combustion or preparation for combustion so that no additional organic Pollutant release, especially dioxins and furans on the gas or solid side, is released becomes.
  • the adsorbent loaded in the adsorber before it Combustion in particular ground to a grain size distribution of 90% less than 90 ⁇ m, and via a burner, which is placed on the main burner designed as a waste incineration grate Incinerator is already burned completely before contact with the grate ash.
  • the ground adsorbent is burned using a burner with auxiliary firing becomes.
  • the adsorbent is preferably burned in a calorific value ratio of about 1: 100 more essential refinements of the invention are specified in subclaims 4-7.
  • a dusty and gaseous Exhaust gas laden with pollutants is generated, which is first dry, for example in an electrostatic filter 2 and then cleaned wet in a gas washer.
  • the gas that still contains residual pollutants is in a solid filter 4, for example, adsorber, which can be designed as an activated coke filter the residual pollutants and finally the chimney 6 and thus the free via a blower 5 Atmosphere.
  • the solid matter (activated coke) is loaded with the pollutants in the solid matter filter 4 and deducted, the amount withdrawn replaced by fresh adsorbent via the feed 7 becomes.
  • the loaded solid is stored in the intermediate storage 8 and fed to a grinding device 9 in which the coarse grain is ground to a grain size at which 90% are smaller than 90 ⁇ m.
  • the ground solid is again stored in an intermediate storage 10 and from there continuously fed to the combustion chamber 1, the combustion of the loaded adsorbent at normal waste incineration temperature, for example 800 ° C with a minimum residence time of 2 seconds is carried out, the combustion being carried out so that the adsorbent before its possible contact with the grate or with ash on the grate Fuel or is burned before it comes into contact with the ash, so that no pollutants from the Adsorbent combustion get into the ashes.
  • Activated coke in particular brown coal coke
  • a solid with a high active surface can be used, the organic part can be completely burned. So that the firing is carried out continuously can be and the streak formation of the resulting pollutant is minimized, it is on one Main firing such as B. directed waste incineration grate or the combustion takes place via a Support firing.
  • the combustion rate of the adsorbent is chosen so that the calorific value ratio of the burned adsorbent to those of the main firing is about 1: 100.
  • the Adsorbent combustion Preheated air is fed via line 11 to accelerate the oxidation. In In a waste incineration plant, for example, 1 to 10 garbage burned on the grate kg of laden dust-like adsorbent burned.
  • the invention is not only limited to waste incineration plants, but can also Metal melting plants such as B. shaft furnaces, blast furnaces are used, in particular in scrap metal processing, when chlorine-containing scrap is used and in the exhaust gases Dioxins and / or furans are included.
  • the one loaded with pollutant The adsorbent is applied to the melt and oxidized there, becoming part of the deoxidizing agent, especially when activated carbon is used.
  • non-oxidizable pollutants such as SOx and / or HCl not accumulate in the system, it is essential that 4 pollutant sinks such as z.
  • B. electrostatic precipitators (mainly for heavy metal dusts) and also wet scrubbers for separating the volatile heavy metals and acid-forming pollutants, such as SO 2 and HCl, may be provided in several stages using various absorbents, on which the majority of the pollutants are absorbed and thus separated .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Gasification And Melting Of Waste (AREA)

Claims (7)

  1. Procédé d'incinération d'adsorbants contaminés par des produits nocifs provenant de la purification de fumées, en particulier d'adsorbants contenant des produits carbonés, tels que, par exemple, du coke actif, venant d'une installation d'incinération destinée à des ordures ménagères ou à des déchets analogues à des ordures ménagères avec une pré- et une post-séparation des produits nocifs se libérant lors de l'incinération, un adsorbant, en particulier du coke de lignite, étant utilisé dans la post-séparation pour assurer la séparation des substances nocives organiques et/ou des substances résiduelles non organiques, et l'adsorbant pollué dans l'adsorbeur étant broyé avant son incinération, en particulier avec une distribution de taille de grains inférieure à 90 µm pour 90 %, et est déjà complètement incinéré, avant la mise en contact avec les cendres de grille, par l'intermédiaire d'un brûleur dirigé sur le foyer principal, réalisé sous la forme de grille d'incinération d'ordures, de l'installation d'incinération.
  2. Procédé selon la revendication 1, caractérisé en ce que l'adsorbant broyé est incinéré avec un brûleur équipé d'une combustion de soutien.
  3. Procédé selon la revendication 1, caractérisé en ce que l'adsorbant broyé ou moulu est incinéré dans un rapport de pouvoir calorifique d'environ 1:100 par rapport au foyer principal.
  4. Procédé selon la revendication 1, caractérisé en ce que l'adsorbant broyé ou moulu est incinéré avec de l'air préchauffé, sans apport d'énergie additionnelle.
  5. Procédé selon la revendication 1, caractérisé en ce que l'adsorbant pollué est soumis à un stockage intermédiaire, de manière connue en soi, avant et après son broyage.
  6. Procédé selon la revendication 1, caractérisé en ce que l'adsorbant pollué est incinéré de façon continue après son broyage, dans la chambre de combustion de l'installation proprement dite.
  7. Procédé selon la revendication 1, caractérisé en ce que dans l'installation d'incinération d'ordures, pour chaque tonne d'ordures incinérées sur la grille, sont brûlés de 1-10 kilos d'absorbant pollué, broyé sous forme de poussières, dans un brûleur incliné en direction de la grille.
EP19940119577 1993-12-13 1994-12-10 Procédé d'élimination d'adsorbants contaminés provenant de la purification de fumée Expired - Lifetime EP0657694B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT251093A AT402339B (de) 1993-12-13 1993-12-13 Verfahren zur verbrennung von mit schadstoffen aus der abgasreinigung beladenen adsorbentien
AT251093 1993-12-13
AT2510/93 1993-12-13

Publications (3)

Publication Number Publication Date
EP0657694A2 EP0657694A2 (fr) 1995-06-14
EP0657694A3 EP0657694A3 (fr) 1996-05-01
EP0657694B1 true EP0657694B1 (fr) 1999-07-07

Family

ID=3535584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940119577 Expired - Lifetime EP0657694B1 (fr) 1993-12-13 1994-12-10 Procédé d'élimination d'adsorbants contaminés provenant de la purification de fumée

Country Status (3)

Country Link
EP (1) EP0657694B1 (fr)
AT (1) AT402339B (fr)
DE (1) DE59408470D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19539949C2 (de) * 1995-10-26 2002-10-02 Linde Ag Verfahren und Vorrichtung zur simultanen Entsorgung von feinkörnigen Schüttgütern und sonstigen Abfällen in thermischen Abfallbehandlungsanlagen
JP5093205B2 (ja) * 2009-09-30 2012-12-12 株式会社日立製作所 二酸化炭素回収型発電システム
CN108105783A (zh) * 2018-01-29 2018-06-01 深圳市地质局（深圳市地质灾害应急抢险技术中心） 吹氧燃烧零排放处理垃圾装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036504C2 (de) * 1980-09-27 1983-08-18 Rheinische Braunkohlenwerke Ag, 5000 Koeln Verfahren zum Entfernen von fluor- und/oder schwefelreichen Schadstoffen aus gasförmigen und flüssigen Medien
DD249854A1 (de) * 1986-06-09 1987-09-23 Leipzig Energiekombinat Verfahren zur rauchgasreinigung
DE3620687A1 (de) * 1986-06-20 1987-12-23 Rheinische Braunkohlenw Ag Verfahren zur entfernung von no/no(pfeil abwaerts)2(pfeil abwaerts) aus weitgehend entschwefelten rauchgasen
DE3929663A1 (de) * 1989-09-07 1990-12-06 Rheinische Braunkohlenw Ag Verfahren zur thermischen behandlung von verunreinigtem erdreich
DE3936708C2 (de) * 1989-11-03 1997-04-03 Petersen Hugo Verfahrenstech Verfahren zur Entfernung von Schwefeldioxid und ggf. Stickstoffoxiden und anderen Verunreinigungen aus dem Abgas einer Abfallstoffverbrennungsanlage
DE3941894C2 (de) * 1989-12-19 1996-03-07 Steinmueller Gmbh L & C Verfahren zum Abscheiden organischer Schadstoffe aus einem Abgas
DE4002741A1 (de) * 1990-01-31 1991-08-01 Rwe Energie Ag Verfahren zum betrieb einer kraftwerksanlage und fuer das verfahren eingerichtete kraftwerksanlage
US5172644A (en) * 1991-12-12 1992-12-22 Electric Power Research Institute, Inc. Method and apparatus for enhanced suppression of the multiple pollutants produced by a combusted fuel

Also Published As

Publication number Publication date
DE59408470D1 (de) 1999-08-12
EP0657694A2 (fr) 1995-06-14
EP0657694A3 (fr) 1996-05-01
AT402339B (de) 1997-04-25
ATA251093A (de) 1996-08-15

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