EP0657694A2 - 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
EP0657694A2
EP0657694A2 EP94119577A EP94119577A EP0657694A2 EP 0657694 A2 EP0657694 A2 EP 0657694A2 EP 94119577 A EP94119577 A EP 94119577A EP 94119577 A EP94119577 A EP 94119577A EP 0657694 A2 EP0657694 A2 EP 0657694A2
Authority
EP
European Patent Office
Prior art keywords
burned
adsorbent
loaded
grate
ground
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.)
Granted
Application number
EP94119577A
Other languages
German (de)
English (en)
Other versions
EP0657694B1 (fr
EP0657694A3 (fr
Inventor
M. Dipl.-Ing. Kappen
Klaus Peter Ing. 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 loaded with exhaust gas cleaning adsorbents, in particular carbon-containing absorbents, such as. B. activated coke, an incinerator for household waste or household-like waste, with pre- and post-separation of the pollutants liberated during combustion, an adsorbent, in particular brown coal coke, being used in the post-separation to separate organic pollutants and / or inorganic residues.
  • adsorbents in particular carbon-containing absorbents, such as. B. activated coke, an incinerator for household waste or household-like waste, with pre- and post-separation of the pollutants liberated during combustion, an adsorbent, in particular brown coal coke, being used in the post-separation to separate organic pollutants and / or inorganic residues.
  • activated coke loaded with pollutants is normally legally declared as hazardous waste, it must be disposed of in a hazardous waste incineration plant, unless it can be proven that the additional incineration in the plant does not increase the pollutant load.
  • the combustion of coal dust-containing substances and also of activated coke is known from DE-OS 3036504, 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 additionally cause the amount of pollutants in the Increase ash and are therefore not to be treated in the sense of the statutory exemption. In other words, the ashes would have to be cleaned or special constructions should be chosen.
  • the object of the invention is therefore to overcome the disadvantages and to carry out the combustion or the preparation for the combustion in such a way that no additional organic pollutants, in particular dioxins and furans on the gas or solids side, are released.
  • the invention is characterized in that the adsorbent loaded in the adsorber is ground before it is burned, in particular to a particle size distribution of 90% less than 90 ⁇ m, and via a burner, which is aimed at a main furnace, in particular waste incineration grate, before it comes into contact with the grate ash is already completely burned.
  • the ground adsorbent is burned via a burner with auxiliary firing.
  • the adsorbent is preferably burned in a calorific value ratio of approximately 1: 100.
  • an exhaust gas laden with dust and gaseous pollutants is generated, which is first cleaned dry, for example in an electrostatic filter 2, and then wet in a gas scrubber.
  • the gas, which still contains residual pollutants, is freed of the residual pollutants in a solid filter 4, for example adsorber, which can be designed as an activated coke filter, and finally fed to the chimney 6 and thus to the free atmosphere via a fan 5.
  • a solid filter 4 for example adsorber, which can be designed as an activated coke filter, and finally fed to the chimney 6 and thus to the free atmosphere via a fan 5.
  • the solid matter filter 4 the solid matter (activated coke) is loaded with the pollutants and drawn off, the amount withdrawn being replaced by fresh adsorbent via the feed 7.
  • 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 in which 90% are less than 90 ⁇ m.
  • the ground solid is again stored in an intermediate storage 10 and continuously fed from there to the combustion chamber 1, the combustion of the loaded adsorbent being carried out at normal waste incineration temperature, for example 800 ° C., with a minimum residence time of 2 seconds, the combustion being carried out in such a way that the adsorbent is burned before it comes into contact with the grate or the fuel mixed with ash on the grate or before it comes into contact with the ash, so that no pollutants from the adsorbent combustion get into the ashes.
  • Activated coke in particular lignite coke or a solid with a high active surface, the organic portion of which can be completely burned, can be used as the adsorbent. So that the firing can be carried out continuously and the streak formation of the resulting pollutant is minimized, it is on a main firing such.
  • the combustion rate of the adsorbent is chosen so that the calorific value ratio of the burned adsorbent to that of the main furnace is approximately 1: 100.
  • the adsorbent combustion Preheated air is fed via line 11 to accelerate the oxidation.
  • 1 to 10 kg of loaded dust-like adsorbent is burned per ton of waste burned on the grate.
  • the invention is not only limited to waste incineration plants, but can also in metal melting plants such.
  • B. shaft furnaces, blast furnaces are used, especially in the treatment of scrap metal when chlorine-containing scrap is used and the exhaust gases contain dioxins and / or furans.
  • the adsorbent loaded with pollutants is placed on the melt and oxidized there and thereby becomes a partial 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 SO2 and HCl, may be provided in several stages using different absorbents, to which the majority of the pollutants are absorbed and thus separated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Gasification And Melting Of Waste (AREA)
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 true EP0657694A2 (fr) 1995-06-14
EP0657694A3 EP0657694A3 (fr) 1996-05-01
EP0657694B1 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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770821A3 (fr) * 1995-10-26 1998-09-02 Linde Aktiengesellschaft Procédé et appareil pour l'élimination simultanée des matières pulvérulentes en vrac et autres déchets dans des installations de traitement thermique
EP2305365A3 (fr) * 2009-09-30 2011-10-12 Hitachi Ltd. Système de génération électrique à capture de dioxyde de carbone
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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770821A3 (fr) * 1995-10-26 1998-09-02 Linde Aktiengesellschaft Procédé et appareil pour l'élimination simultanée des matières pulvérulentes en vrac et autres déchets dans des installations de traitement thermique
EP2305365A3 (fr) * 2009-09-30 2011-10-12 Hitachi Ltd. Système de génération électrique à capture de dioxyde de carbone
US8500881B2 (en) 2009-09-30 2013-08-06 Hitachi, Ltd. Carbon dioxide capture power generation system
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

Also Published As

Publication number Publication date
EP0657694B1 (fr) 1999-07-07
AT402339B (de) 1997-04-25
ATA251093A (de) 1996-08-15
EP0657694A3 (fr) 1996-05-01
DE59408470D1 (de) 1999-08-12

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