EP0718391A2 - Procédé et dispositif d'obtention d'un gaz utilisable par pyrolyse - Google Patents

Procédé et dispositif d'obtention d'un gaz utilisable par pyrolyse Download PDF

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Publication number
EP0718391A2
EP0718391A2 EP95118290A EP95118290A EP0718391A2 EP 0718391 A2 EP0718391 A2 EP 0718391A2 EP 95118290 A EP95118290 A EP 95118290A EP 95118290 A EP95118290 A EP 95118290A EP 0718391 A2 EP0718391 A2 EP 0718391A2
Authority
EP
European Patent Office
Prior art keywords
gas
pyrolysis
converter
cracked
drum
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Withdrawn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
EP95118290A
Other languages
German (de)
English (en)
Other versions
EP0718391A3 (fr
Inventor
Dieter Dr. Eidner
Wilhelm Mottitschka
Wolfgang Kadlubowski
Klaus Jungk
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.)
Dbi Deutsches Brennstoffinstitut Rohstoff & Anlage
Deutz AG
Original Assignee
Dbi Deutsches Brennstoffinstitut Rohstoff & Anlagentechnik GmbH
Deutsches Brennstoffinstitut GmbH
Kloeckner Humboldt Deutz 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 Dbi Deutsches Brennstoffinstitut Rohstoff & Anlagentechnik GmbH, Deutsches Brennstoffinstitut GmbH, Kloeckner Humboldt Deutz AG filed Critical Dbi Deutsches Brennstoffinstitut Rohstoff & Anlagentechnik GmbH
Publication of EP0718391A2 publication Critical patent/EP0718391A2/fr
Publication of EP0718391A3 publication Critical patent/EP0718391A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
    • C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
    • C10B49/04—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge while moving the solid material to be treated
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/007—Screw type gasifiers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
    • C10J3/60—Processes
    • C10J3/64—Processes with decomposition of the distillation products
    • C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/02—Dust removal
    • C10K1/026—Dust removal by centrifugal forces
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0903—Feed preparation
    • C10J2300/0906—Physical processes, e.g. shredding, comminuting, chopping, sorting
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/12—Heating the gasifier
    • C10J2300/1253—Heating the gasifier by injecting hot gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water

Definitions

  • the invention relates to a process for the recovery of usable gas from waste by pyrolysis, the shredded waste being introduced into a gas-tight pyrolysis drum, in which pyrolysis gas is generated and separated from the pyrolysis residue formed at the same time, and wherein the pyrolysis gas produced is split into a fuel gas in a gas converter with the supply of air and in the presence of a glowing coke bed.
  • the invention also relates to a device for performing the method.
  • a method and an apparatus of this kind is e.g. described in DE 33 47 554.
  • the organic constituents contained in the waste are degassed in a known manner.
  • the resulting pyrolysis gas is subsequently treated in subsequent processes to the extent that its use, e.g. Requires gas engines or gas turbines.
  • a pyrolysis drum which is slightly inclined towards the horizontal and which rotates about its longitudinal axis is generally used to generate pyrolysis gas.
  • the pyrolysis drum is gastight and is kept at a temperature of 450 to 600 ° C by indirect heating.
  • the pyrolysis gas generated in the pyrolysis drum is then converted, for example in a gas converter according to DE 33 17 977, into a cracked gas.
  • a gas converter In the gas converter, partial combustion of the pyrolysis gas takes place on glowing coke with the addition of air. At the temperatures of 1100 to 1200 ° C that are reached, long-chain hydrocarbons are largely converted into hydrogen, carbon monoxide and methane.
  • the gas outlet temperature of the gas converter depends on the reactivity of the coke used and on the ⁇ value of the partial combustion. Outlet temperatures of 900 to 950 ° C are necessary for extensive splitting of the hydrocarbons.
  • the cracked gas formed is cooled and cleaned before further use.
  • a major disadvantage of this known method is that the metallic walls of the pyrolysis drum which are used to transfer the process heat required for the pyrolysis are exposed to high stresses caused by corrosion and abrasion.
  • the present invention is therefore based on the object of a method for obtaining usable gas from waste by pyrolysis and a device for To carry out the process with which the pyrolysis of hydrogen chloride-forming feedstocks is possible without the addition of lime and without lowering the pyrolysis end temperature and the dimensions of the pyrolysis drum can be significantly reduced.
  • This object is achieved in that the process heat required to carry out the pyrolysis is transferred by a gas in direct contact with the material to be pyrolyzed, and that a partial stream of the cracked gas formed in the gas converter is used for this heat transfer to the material to be pyrolyzed.
  • a pressure increase required to convey the cracked gas into the pyrolysis drum e.g. via injectors
  • the injectors can be arranged in the gas inlet connection of the gas converter and the propellant of which is either air for partial combustion or steam.
  • the walls of the pyrolysis drum are no longer used to transfer the process heat, they can be protected against corrosion and abrasion by using a suitable ceramic lining. Furthermore, this ceramic inner lining of the pyrolysis drum results in a substantial reduction in the temperature of the metallic wall and a reduction in the heat losses through this wall.
  • the material to be pyrolyzed is introduced into a pyrolysis drum 2 by means of a screw conveyor 1.
  • This pyrolysis drum 2 is supplied at the end face of the screw conveyor 1 with a hot cracking gas serving as a heat carrier from the gas converter 5 via a cracking gas feed line 22.
  • the temperature of this gas is approx. 900 ° C.
  • the material to be pyrolyzed is heated to approximately 550 ° C. by the hot gas and thus pyrolyzed.
  • the pyrolysis gas formed in the process including the vaporous pyrolysis oil, mixes with the cracked gas of the gas converter 5 cooled in the pyrolysis drum 2 and is discharged as a mixture with likewise approximately 550 ° C. on the discharge side of the pyrolysis drum 2.
  • the pyrolysis coke formed in the pyrolysis drum 2 is discharged via a discharge screw 3.
  • the mixture of fission gas and pyrolysis products flowing out of the pyrolysis drum 2 flows via a cyclone 4 for dedusting to a gas converter 5.
  • the dust separated in the cyclone 4 becomes that from the pyrolysis drum 2 Pyrolysis coke discharged via a discharge line 15 is added.
  • the gas converter 5 is equipped with a gas supply nozzle 6 which is evenly distributed over the circumference and to which the gas to be split, which comes from the cyclone 4 via a pyrolysis gas supply line 17, is supplied via a ring line 7 and branch lines 18 branching therefrom.
  • the supply of the gasification air to the nozzle 6 takes place from a feed line 20 via a ring line 8 and branch lines 19 branching therefrom to the nozzle 6.
  • the gasification air or steam which is fed via a driving air nozzle 10 to a mixing tube 11 of the injector 9, serves as the propellant of the injectors 9 for increasing the pressure.
  • the pressure increase required for the circulation of the cracked gas takes place in the mixing tube 11 and in a downstream diffuser 12.
  • the hot cracked gas formed by conversion of the pyrolysis products flows out into a cracked gas line 16 after its partial combustion and cracking. If the temperature of this cracked gas is sufficiently high, it can be fed directly to the pyrolysis drum 2. If this is not the case, a further temperature increase can be achieved by adding air via an air line 21 in a combustion chamber 13 downstream of the gas converter 5.
  • the excess cracked gas is branched off from the cracked gas line 16 and fed to a schematically indicated cracked gas cleaning and cracked gas utilization 14.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
EP95118290A 1994-11-22 1995-11-21 Procédé et dispositif d'obtention d'un gaz utilisable par pyrolyse Withdrawn EP0718391A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4441423 1994-11-22
DE19944441423 DE4441423A1 (de) 1994-11-22 1994-11-22 Verfahren und Vorrichtung zur Gewinnung von verwertbarem Gas aus Müll durch Pyrolyse

Publications (2)

Publication Number Publication Date
EP0718391A2 true EP0718391A2 (fr) 1996-06-26
EP0718391A3 EP0718391A3 (fr) 1997-04-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118290A Withdrawn EP0718391A3 (fr) 1994-11-22 1995-11-21 Procédé et dispositif d'obtention d'un gaz utilisable par pyrolyse

Country Status (2)

Country Link
EP (1) EP0718391A3 (fr)
DE (1) DE4441423A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2295526A1 (fr) * 2009-04-29 2011-03-16 Protodesign S.R.L. Pyrolyse hybride et procédé de gazéification et système de conversion des déchets
RU2481386C2 (ru) * 2008-10-08 2013-05-10 Сергей Петрович Хмеленко Способ непрерывной термохимической переработки различных видов углеродсодержащего сырья

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19843613C2 (de) * 1998-09-23 2000-12-07 Harald Martin Verfahren und Vorrichtung zur Aufarbeitung von Abprodukten und Abfallstoffen
DE19937524A1 (de) 1999-08-03 2001-02-15 Harald Martin Verfahren und Vorrichtung zum Beseitigen von Abprodukten und Abfallstoffen
DE19937521A1 (de) 1999-08-03 2001-02-15 Harald Martin Verfahren und Vorrichtung zum Trocknen, Trennen, Klassieren und Zersetzen von Abprodukten
DE202008008767U1 (de) 2008-06-27 2008-09-11 Projahn, Corina Vorrichtung zur Durchführung einer Pyrolyse
EP2240554B1 (fr) 2008-01-28 2017-09-13 Corina Projahn Procédé et dispositif permettant d'effectuer une pyrolyse
DE102008030983B4 (de) 2008-06-27 2012-06-06 Corina Projahn Verfahren und Vorrichtung zur Durchführung einer Pyrolyse und deren Verwendung zum Verschwelen von Altreifen und Biomasse
DE202008007674U1 (de) 2008-06-09 2009-02-12 Fittkau, Wilfried, Dipl.-Ing. Anlage zur Erzeugung von Elektroenergie durch Depolimerisation von Polimeren, insbesondere Altreifen
DE102008039817A1 (de) 2008-08-22 2010-02-25 Corina Projahn Pyrolyseprodukt und seine Verwendung
DE102012109874A1 (de) 2012-10-16 2014-04-17 Merenas Trust Reg. Vorrichtung und Verfahren zur stofflichen Behandlung von Rohstoffen
EP4303285A1 (fr) 2022-07-08 2024-01-10 Merenas Trust Reg. Dispositif et procédé de traitement matériel des matières premières, ainsi que carbone fabriqué selon ledit procédé

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142867A (en) * 1974-07-04 1979-03-06 Karl Kiener Apparatus for the production of combustible gas
DE2927240C2 (de) * 1979-07-05 1985-10-31 Kiener-Pyrolyse Gesellschaft für thermische Abfallverwertung mbH, 7000 Stuttgart Verfahren und Vorrichtung zum Vergasen von stückigen Brennstoffen mit Vorschwelung und Cracken der Schwelgase im Gasgenerator
DE3317977A1 (de) * 1983-05-18 1984-11-22 Pka Pyrolyse Kraftanlagen Gmbh, 7080 Aalen Gaswandler
DE3633212A1 (de) * 1986-09-30 1988-04-14 Kwu Umwelttechnik Gmbh Pyrolyseanlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2481386C2 (ru) * 2008-10-08 2013-05-10 Сергей Петрович Хмеленко Способ непрерывной термохимической переработки различных видов углеродсодержащего сырья
EP2295526A1 (fr) * 2009-04-29 2011-03-16 Protodesign S.R.L. Pyrolyse hybride et procédé de gazéification et système de conversion des déchets

Also Published As

Publication number Publication date
DE4441423A1 (de) 1997-06-05
EP0718391A3 (fr) 1997-04-02

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