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WO1990015657A1 - Procede de separation des hydrocarbures polycycliques et des metaux lourds dans les gaz brules - Google Patents

Procede de separation des hydrocarbures polycycliques et des metaux lourds dans les gaz brules Download PDF

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Publication number
WO1990015657A1
WO1990015657A1 PCT/EP1990/000921 EP9000921W WO9015657A1 WO 1990015657 A1 WO1990015657 A1 WO 1990015657A1 EP 9000921 W EP9000921 W EP 9000921W WO 9015657 A1 WO9015657 A1 WO 9015657A1
Authority
WO
WIPO (PCT)
Prior art keywords
heavy metals
polycyclic hydrocarbons
gases
adsorbent
separation
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.)
Ceased
Application number
PCT/EP1990/000921
Other languages
German (de)
English (en)
Inventor
Mehdi Haji-Javad
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.)
ABB Technology FLB AB
Original Assignee
ABB Flaekt AB
Flaekt AB
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 ABB Flaekt AB, Flaekt AB filed Critical ABB Flaekt AB
Publication of WO1990015657A1 publication Critical patent/WO1990015657A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B01D53/02—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 by adsorption, e.g. preparative gas chromatography
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/006—Layout of treatment plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/30—Halogen; Compounds thereof
    • 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 polycyclic hydrocarbons e.g. Halogenated dibenzodioxins and dibenzofurans (PCDD and PCDF) or polychlorinated benzenes and phenols, as well as locks all (e.g. Hg, Cd) can emit with the exhaust gases from the combustion plants, especially from waste and hazardous waste incineration plants.
  • PCDD and PCDF Halogenated dibenzodioxins and dibenzofurans
  • PCDF polychlorinated benzenes and phenols
  • locks all e.g. Hg, Cd
  • the polycyclic hydrocarbons which are extremely harmful to health (carcinogenic), can arise during combustion through complex recombination reactions from organic and inorganic compounds. These connections can only be separated to a limited extent in downstream cleaning systems (with the dust in the electrostatic filter or in the exhaust gas washing system). Some heavy metals (Hg, Cd), which are also harmful to health, can emit from the exhaust gas cleaning system in part in the gaseous state or as fine dust and aerosols at the existing exhaust gas temperatures.
  • Hg, Cd heavy metals
  • Figures 1 and 2 are examples of the invented process in connection with a conventional exhaust gas cleaning system behind one
  • Waste incineration consisting of an electrostatic filter for dust separation, a two-stage wash for
  • Heavy metals are separated with the fly ash.
  • Aerosols that leave the E-filter, accumulate or are partly in a gaseous state cannot be removed to a large extent in the E-filter.
  • the exhaust gases are passed through a heat exchanger to a two-stage scrubber, whereby the cooling to approx. 60 - 70 ° C and the use of absorbents (NaOH; Ca (OH) 2) the acidic exhaust gas components (HCI, HF, SOx) and further heavy metal fractions are deposited.
  • absorbents NaOH; Ca (OH) 2
  • HCI, HF, SOx acidic exhaust gas components
  • further heavy metal fractions are deposited.
  • the remaining hydrocarbons and heavy metals leave the washing plant as fine rods, aerosols or gases and, if no additional measures are provided, will be emitted from the chimney with the exhaust gases.
  • the emissions of these pollutants are to be combined
  • Adsorption filtering processes can be prevented.
  • the exhaust gas after washing is heated in a heat exchanger to approx. 70 to 150 ° C and mixed intensively in a reactor with finely divided powdery adsorbent.
  • the reactor can e.g. consist of a circulating fluidized bed, through which a large contact area between exhaust gas and adsorbent can be realized.
  • the polycyclic hydrocarbons and the heavy metals are already partially attached to the adsorbent.
  • the exhaust gas from the reactor is fed to a downstream fabric filter, where the adsorbent separates from the filter bags to form a filter cake. Since the exhaust gas is forced to flow through the filter cake, an extensive adsorptive separation of the remaining polycyclic hydrocarbons and the heavy metals takes place simultaneously with the dedusting.
  • All selectively acting substances e.g. Activated carbon, hydrated lime, molecular sieves and sodium sulfite with a high specific surface area can be used.
  • the branched off portion can be sent to the incineration plant for disposal, where the bound organic compounds thermally decompose and the heavy metals are released again and ultimately separated in the downstream systems (e-filter and exhaust gas scrubbing).
  • the method can be used either after the exhaust gas scrubbing or after the SCR system (catalytic NOx reduction using ammonia) directly in front of the chimney.
  • ammonia residues and possible ammonium salts NH4HS04, (NH4) 2S04
  • NH4HS04, (NH4) 2S04 ammonium salts
  • the invented process is characterized by a high degree of flexibility and adaptability to the respective operating conditions.
  • the adsorption process and plant operation can be optimized by the following measures:

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Abstract

L'invention a pour objet un procédé d'épuration fine des substances polluantes présentes dans les gaz brûlés des installations d'incinération des déchets. Dans l'invention, les gaz brûlés, qui ont fait l'objet d'une première épuration dans une installation d'épuration des gaz pour éliminer les poussières, les gaz acides (HCl, HF, SOx), les métaux lourds et les NOx, sont soumis à un procédé combiné d'adsorption et de filtrage afin de supprimer les hydrocarbures polycycliques qui subsistent (dioxine et furane par exemple) et les métaux lourds (Hg et Cd par exemple). A cet effet, les gaz brûlés se trouvant à une température de l'ordre de 70 à 160°C sont mélangés à des adsorbants appropriés (charbon actif, tamis moléculaire ou hydrate de calcium par exemple) dans un réacteur (C4) et passés ensuite à travers un filtre texturé (F2). L'intégration des substances polluantes à l'adsorbant se fait dans le réacteur et ultérieurement dans le gâteau déposé sur le filtre texturé.
PCT/EP1990/000921 1989-06-12 1990-06-12 Procede de separation des hydrocarbures polycycliques et des metaux lourds dans les gaz brules Ceased WO1990015657A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3919124.9 1989-06-12
DE19893919124 DE3919124A1 (de) 1989-06-12 1989-06-12 Verfahren zur abscheidung von polyzylkischen kohlenwasserstoffen und schwermetallen aus abgasen

Publications (1)

Publication Number Publication Date
WO1990015657A1 true WO1990015657A1 (fr) 1990-12-27

Family

ID=6382575

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/000921 Ceased WO1990015657A1 (fr) 1989-06-12 1990-06-12 Procede de separation des hydrocarbures polycycliques et des metaux lourds dans les gaz brules

Country Status (3)

Country Link
AU (1) AU5859790A (fr)
DE (1) DE3919124A1 (fr)
WO (1) WO1990015657A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582840A1 (fr) * 1992-07-24 1994-02-16 AUSTRIAN ENERGY & ENVIRONMENT SGP/WAAGNER-BIRO GmbH Procédé pour mesurer des polluants contenus dans le gaz
US6379639B2 (en) * 1998-08-17 2002-04-30 Jürgen Labuschewski Process for purification of flue gas

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3935904A1 (de) * 1988-10-28 1990-05-03 Ftu Gmbh Mittel und verfahren zur reinigung von gasen und abgasen von schwermetallen und ein verfahren zur herstellung dieser mittel
DE4012887A1 (de) * 1990-04-23 1991-10-31 Nymic Anstalt Verfahren zur reinigung von abgasen, insbesondere aus abfallverbrennungsanlagen
DE4012982A1 (de) * 1990-04-24 1991-10-31 Ftu Gmbh Verfahren zur reinigung von gasen und abgasen von anorganischen und organischen schadstoffen
DE4113597C2 (de) * 1990-04-28 1996-10-17 Babcock Anlagen Gmbh Verfahren zur Reinigung von Abgasen
EP0454885A1 (fr) * 1990-05-02 1991-11-06 Ftu Gmbh Procédé pour la purification de gaz et de gaz d'échappement de polluant
DE4034498A1 (de) * 1990-09-06 1992-03-12 Metallgesellschaft Ag Verfahren zur abtrennung von schwermetallen und dioxinen aus verbrennungsabgasen
DE4035554A1 (de) * 1990-11-08 1992-05-14 Martin Umwelt & Energietech Verfahren zum abtrennen von ammoniak aus gasen, insbesondere abgasen von verbrennungsprozessen
DE4100179A1 (de) * 1991-01-05 1992-07-09 Kroeber Heinz Joachim Verfahren und vorrichtung zur reduzierung des gehalts an verunreinigungen in der luft
DE4124844A1 (de) * 1991-07-26 1993-01-28 Krc Umwelttechnik Gmbh Verfahren zur reinigung von stark mit quecksilber belasteten rauchgasen
DE4212071A1 (de) * 1992-04-10 1993-10-14 Berlin Consult Gmbh Reinigungsstufe für Pyrolysegase
DE4233303C1 (de) * 1992-10-03 1994-01-20 Metallgesellschaft Ag Verfahren zur Abtrennung von Dioxinen und Furanen aus Abgasen von Verbrennungsanlagen
US5500195A (en) * 1992-11-13 1996-03-19 Foster Wheeler Energy Corporation Method for reducing gaseous emission of halogen compounds in a fluidized bed reactor
DE4317756A1 (de) * 1993-05-28 1995-01-12 Krc Umwelttechnik Gmbh Verfahren zur Reinigung von mit Quecksilber belasteten Rauchgasen insbesondere aus Klärschlammverbrennungsanlagen
DE4403244A1 (de) * 1994-02-03 1995-08-10 Metallgesellschaft Ag Verfahren zur Reinigung von Verbrennungsabgasen
DE4415025A1 (de) * 1994-04-29 1995-07-06 Abb Management Ag Verfahren zum Abscheiden von Schadstoffen aus einem Abgasstrom
IT1289574B1 (it) * 1995-04-07 1998-10-15 Danieli Off Mecc Procedimento per la rimozione di molecole organo-alogenate da correnti gassose e relativo impianto
DE19617076A1 (de) * 1996-04-29 1997-11-06 Metallgesellschaft Ag Verfahren zur Adsorption von Kohlenwasserstoffen aus Rauchgasen
US5897688A (en) * 1997-04-18 1999-04-27 Cdem Holland, Bv Method of removing a metal from a stream of hot gas
RU2288025C2 (ru) * 2004-02-16 2006-11-27 Федеральное государственное унитарное предприятие "Российский научный центр "Прикладная химия" Способ очистки газовых выбросов, содержащих фтористые соединения
DE102006004221A1 (de) * 2006-01-30 2007-08-09 Gks - Gemeinschaftskraftwerk Schweinfurt Gmbh Vorrichtung und Verfahren zum Abscheiden von Schadstoffen im Rauchgas einer thermischen Anlage
FR2949978B1 (fr) * 2009-09-17 2012-08-31 Air Liquide Procede de purification d'un flux gazeux comprenant du mercure

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3426059A1 (de) * 1984-07-14 1986-01-16 Hugo Petersen Gesellschaft für verfahrenstechnischen Anlagenbau mbH & Co KG, 6200 Wiesbaden Verfahren zur abscheidung und beseitigung von organischen schadstoffen, insbesondere von polychlorierten dibenzodioxinen (pcdd) aus rauchgasen
EP0208490A1 (fr) * 1985-07-01 1987-01-14 A/S Niro Atomizer Procédé pour éliminer la vapeur de mercure et la vapeur de chlordibenzodioxines et -furanes d'un courant de gaz de rejet chaud
EP0217733A1 (fr) * 1985-09-30 1987-04-08 Mitsubishi Jukogyo Kabushiki Kaisha Procédé pour le traitement systématique de gaz de rejet
EP0253563A1 (fr) * 1986-07-16 1988-01-20 Niro A/S Procédé pour éliminer la vapeur de mercure et/ou la vapeur de composés organiques nuisibles et/ou les oxydes d'azote des gaz de rejet d'une installation d'incinération
DE3629817A1 (de) * 1986-09-02 1988-03-03 Bergwerksverband Gmbh Verfahren zur verringerung der schadstoffemisionen von kraftwerken mit kombinierten gas-/dampfturbinenprozessen mit vorgeschalteter kohlevergasung
DE3632366A1 (de) * 1986-09-24 1988-03-31 Boelsing Friedrich Verfahren zur entfernung von halogenierten kohlenwasserstoffen aus der gasphase
EP0271618A1 (fr) * 1986-12-15 1988-06-22 Calgon Carbon Corporation Tamis moléculaires de carbone pour l'absorption de mercure
EP0301272A2 (fr) * 1987-07-29 1989-02-01 Waagner-Biro Aktiengesellschaft Procédé et dispositif pour l'épuration des gaz ou d'air d'échappement

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3426059A1 (de) * 1984-07-14 1986-01-16 Hugo Petersen Gesellschaft für verfahrenstechnischen Anlagenbau mbH & Co KG, 6200 Wiesbaden Verfahren zur abscheidung und beseitigung von organischen schadstoffen, insbesondere von polychlorierten dibenzodioxinen (pcdd) aus rauchgasen
EP0208490A1 (fr) * 1985-07-01 1987-01-14 A/S Niro Atomizer Procédé pour éliminer la vapeur de mercure et la vapeur de chlordibenzodioxines et -furanes d'un courant de gaz de rejet chaud
EP0217733A1 (fr) * 1985-09-30 1987-04-08 Mitsubishi Jukogyo Kabushiki Kaisha Procédé pour le traitement systématique de gaz de rejet
EP0253563A1 (fr) * 1986-07-16 1988-01-20 Niro A/S Procédé pour éliminer la vapeur de mercure et/ou la vapeur de composés organiques nuisibles et/ou les oxydes d'azote des gaz de rejet d'une installation d'incinération
DE3629817A1 (de) * 1986-09-02 1988-03-03 Bergwerksverband Gmbh Verfahren zur verringerung der schadstoffemisionen von kraftwerken mit kombinierten gas-/dampfturbinenprozessen mit vorgeschalteter kohlevergasung
DE3632366A1 (de) * 1986-09-24 1988-03-31 Boelsing Friedrich Verfahren zur entfernung von halogenierten kohlenwasserstoffen aus der gasphase
EP0271618A1 (fr) * 1986-12-15 1988-06-22 Calgon Carbon Corporation Tamis moléculaires de carbone pour l'absorption de mercure
EP0301272A2 (fr) * 1987-07-29 1989-02-01 Waagner-Biro Aktiengesellschaft Procédé et dispositif pour l'épuration des gaz ou d'air d'échappement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582840A1 (fr) * 1992-07-24 1994-02-16 AUSTRIAN ENERGY & ENVIRONMENT SGP/WAAGNER-BIRO GmbH Procédé pour mesurer des polluants contenus dans le gaz
US6379639B2 (en) * 1998-08-17 2002-04-30 Jürgen Labuschewski Process for purification of flue gas

Also Published As

Publication number Publication date
DE3919124A1 (de) 1990-01-18
AU5859790A (en) 1991-01-08

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