WO1994010507A1 - Procede de recuperation en continu de materiau tel que le caoutchouc et installation d'exploitation de ce procede - Google Patents

Procede de recuperation en continu de materiau tel que le caoutchouc et installation d'exploitation de ce procede Download PDF

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Publication number
WO1994010507A1
WO1994010507A1 PCT/SE1993/000897 SE9300897W WO9410507A1 WO 1994010507 A1 WO1994010507 A1 WO 1994010507A1 SE 9300897 W SE9300897 W SE 9300897W WO 9410507 A1 WO9410507 A1 WO 9410507A1
Authority
WO
WIPO (PCT)
Prior art keywords
pyrolysis
feeding
oil
chamber
arrangement
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/SE1993/000897
Other languages
English (en)
Inventor
Alf Johansson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU54365/94A priority Critical patent/AU5436594A/en
Publication of WO1994010507A1 publication Critical patent/WO1994010507A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/07—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
    • 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
    • C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
    • C10B47/28—Other processes
    • C10B47/32—Other processes in ovens with mechanical conveying means
    • C10B47/40—Other processes in ovens with mechanical conveying means with endless conveying devices
    • 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
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
    • 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
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics

Definitions

  • the present invention relates to a method and an arrange ⁇ ment for recovery of, for example rubber which mainly originates from worn out car tyres.
  • Pyrolysis means that the material in question is heated without admission of air or oxygen so that it is decomposed in gaseous, liquid or solid substances.
  • the most important material to be decomposed by pyrolysis is rubber, mainly in the form of worn out rubber tyres from cars.
  • the earlier known continuous method is also uneconomic and only semi-continuous in that the locking in of the material has to be carried out batch-wise.
  • the method is also uneconomic because of the square-shape of the chamber and poor flowing off of the oil. It is therefore easily clogged and it has shown to be very troublesome.
  • the used exhaust gases after the inerting and preheating are recycled to the furnace.
  • the pyrolysis for rubber should occur at a temperature of 250-800°C, preferably at about 700°C and possibly have a heating zone of about 800° to 2.400°C at the start of the pyrolysis process.
  • the heating should occur continuously.
  • the sediments obtained through the pyrolysis and which are recovered from the oil are, according to the invention, reintroduced into the pyrolysis process.
  • the invention also comprises an arrangement for continuous recovery of, for example, rubber through pyrolysis, comprising an elongated pyrolysis chamber having conveying means for the material intended for pyrolysis, feeding arrangements for the material and feeding out arrangements for gas, oil and solids, which arrangement is characterized in that the feeding arrangement comprises one or more vertical silos having a conical lower part for the material, a hauling and/or preheating device running from the underside of the siles and terminating in a shaft- shaped discharging device for the material into the chamber.
  • the discharging device should comprise a funnel shaped container having an opening in the bottom and a feeding screw for feeding down the material towards the bottom hole.
  • This bottom hole should be provided with a rotating cutting knife.
  • the feeding screw and the cutting knife should rotate in opposite directions for controlling of the feeding velocity and the fineness.
  • the cutting knife which rotates against a perforated disc, should be cooled.
  • a first heat-isolated pyrolysis reactor having heat-radiation elements should be arranged immediately above the front end of the conveyor in the pyrolysis chamber.
  • the conveyor in the pyrolysis chamber can consist of an endless oil-permeable band having a flow off plate between the forward and backward running parts of the band.
  • the arrangement according to the present invention is also characterized in that the chamber in section is round and that a feeding screw for oil is arranged in its bottom.
  • Fig. 1 shows a flow-sheet of the method and the arrange ⁇ ment according to the present invention
  • Fig. 2 schematically shows the arrangement seen from the side
  • Fig. 3 shows a section through the central parts of the arrangement.
  • a silo 1 for raw material is shown.
  • This raw material which primarily originates from worn out vehicle tyres should be pretreated by shredding, fine shredding and sifting. It is therefore present in the shape of granules in the silo. This pretreatment is not part of the present invention.
  • the raw material is fed through a prehea ⁇ ting zone 2 which ends with an inerting zone 3. After this inerting the material which is now substantially free from air and oxygen is brought into the first step in a pyrolysis reactor 4 and from there into the pyrolysis chamber 5.
  • a carbon lock 6 is arranged which locks out the solid material substantially consisting of carbon.
  • the solid material can be treated in a suitable way and is a good source for the production of carbon black.
  • the oil produced from the pyrolysis chamber 5 is fed during the process to an oil sedimenting plant 7 and further to one or more oil cisterns 8. Sediments from the oil sedi ⁇ menting plant 7 and possibly from the oil cisterns 8 are returned to the pyrolysis reactor 4, the pyrolysis chamber 5 or to the silo 1.
  • the gas from the pyrolysis chamber or pyrolysis reactor 4 is collected in one or more gas tanks 9.
  • Oil from the oil cistern 8 or gas from the gas tanks 9 can be used to drive a turbine 10 which for example generates electric current.
  • the exhaust gases from the turbine which are collected in an exhaust pan 11 can partly be released to the atmosphere after usual and conventional purification in heating pans whereas a fraction of these exhaust gases is returned to the inerting step 3 and there replaces air which has followed the granules into the silo 1.
  • These exhaust gases which are fed to the inerting step 3 are fed in counter-current to the mass intended to be pyrolysed through the preheating step 2 where they preheat the mass and then up into the silo 1 where they give off their last heat.
  • the gases which stream up through the silo are, however, not released into the atmosphere but can be fed back to the burning step in the generator. Accordingly no release of gas or oil whatsoever comes from the system.
  • nitrogen can, however, be used or some other inert gas for inertising as the oxygen-free exhaust gases are not yet present in the system.
  • the oil in the cistern 8 and gas in the gas tanks 9 which are not used for burning can be distributed further to the market.
  • produced electrical energy in the generator can be distributed via the electric network and heat from the heating pan can be used in the same way.
  • Fig. 2 shows the main part of the arrangement seen from the side comprising a silo 1 of suitable construction and a preheating unit 2 with successive inerting zone 3.
  • the preheating and inerting zones consist of pipe-formed units in which hauling means are arranged. These pipe constructions start at the bottom of the silo and extend upwardly to finally drop the material down into the pyrolysis reactor 4 for further treatment in the pyrolysis chamber 5. After this the carbon lock 6 is arranged which feeds the carbon material to a carbon tank. Pipes for feeding of gas, oil etc are not shown in the figure for the sake of simplicity.
  • Fig. 3 shows how a preheating step 2 is constructed.
  • a feeding screw 11 is arranged which feeds the material towards the inerting step 3, wherefrom it may drop down into the funnel shaped container 12.
  • the preheating and inerting steps consist of, three concentric pipes whereby the central pipe houses the screw 11 with material which is to be pyrolysed, the closest surrounding pipe 13 contains hot gases for preheating and the outermost pipe 14 is provided with insulating mass.
  • the preheating of the material occurs up to a temperature of about 120°C.
  • the funnel shaped container 12 which is the main part in a dropping arrangement for the material comprises a feeding screw for feeding down the mass through a hole in the lower part of the container 12.
  • a cutting knife 16 is arranged which makes the material fall in an even stream down into the pyrolysis reactor 4.
  • granulated material will always be present which is fed with a constant velocity into the chamber.
  • This material together with the cutting knife 16 in the opening, constitutes a sufficient lock for preventing passage of gas from the pyrolysis part to the preheating zone. In this way, a complete continuity of the feeding is created. It is important that the cutting knife and the plate against which it works will not be too hot. The knife and the plate are therefore cooled and arranged at some distance above the hot zone in the pyrolysis reactor.
  • a feeding arrangement 31 is also connected to the upper part of the container. This device adds primarily the above mentioned oil sediments.
  • the pyrolysis reactor 4 which is shown in section B-B consists of an outer steel cover 17, ceramic heat insulation 18 and 19 and has heating coils 20 around the central channel. These heating coils 20 are suitably electric but they can also add heat by burning of gas.
  • the gas created in this zone is deviated downwardly and is allowed to stream out through the cylindrically shaped gas exit 21. Therefrom the gas is pumped out together with further gas which is created during the pyrolysis through the gas pump 22 at the lower part of the pyrolysis chamber.
  • Material from the feeding falls down onto the endless rotating band 23 for further transport through the chamber.
  • the material is subjected to heat in the order of 700°C if it is a question of rubber and the material then decomposes in a gas mixture, oil and solid material.
  • the heat of 700°C has suitably been preceded by a quick heating of 800°C to 2.400°C in the pyrolysis reactor 4.
  • the heat for bringing about this high tempera ⁇ ture comes from the heating pump 24 above the band 23.
  • These heating pipes can either be electrically heated or heated by means of gas.
  • a section through the pyrolysis chamber 5 is shown in the section A-A wherefrom it can be seen that the chamber itself is round and is housed in a square cover. The space between the round part and the square cover is heat insulated.
  • the band 23 on which the material lies should be oil- permeable and consists preferably of a steel net. Between the forwards and backwards running parts of the band 23, a plate 25 for the oil flow is arranged. This plate guides the oil which flows from the band to the outer side of the return part and conducts it further down towards the bottom part of the chamber where a screw 26 is arranged.
  • This screw 26 is of the shaftless type for avoiding problems with depositions and cloggings.
  • the screw 26 is driven by an electric motor and conducts the oil down into a recess in the pyrolysis chamber from where it is brought out by means of a further screw 27.
  • a carbon lock 6 is arranged where the solid material may fall down into a recess and is screwed out by means of a carbon screw 28.
  • a level indicator 29 is arranged in this recess for indicating how much carbon is present.
  • the different screws are driven by electric motors in known ways.
  • the chamber is provided with inlet pipes 30 for flushing.
  • the chamber can be kept clean without disassembly and cleaning of the parts.
  • the preheating device and the pyrolysis chamber can be constructed according to the module principle whereby one can choose the length which suits the different application areas. It is also possible to couple these plants in series.
  • an arrangement and a method are provided which do not release any air- contaminating gases; instead these are practically completely trapped.
  • a system is provided in which all parts of the fed material are collected and this together with a very economic energy consumption has led to a system with unusually good economy.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Procédé de récupération en continu de matériaux tels que, par exemple, le caoutchouc par pyrolyse. Les produits issus de la pyrolyse, tels que le gaz ou le pétrole, sont brûlés et déversés dans le contrecourant de matière brute, lors d'une phase finale, avant l'admission dans la pyrolyse pour expulsion de l'oxygène et préchauffage du matériau. L'invention porte également sur une installation permettant d'exploiter ce procédé, se composant d'une chambre à pyrolyse de forme allongée (5) comportant des dispositifs d'alimentation (23) des matériaux destinés à subir la pyrolyse, le dispositif d'alimentation comprenant un silo vertical (1), un dispositif d'amenée et/ou de préchauffage (2) comprenant un secteur (3) où la charge est rendue inerte commençant à la partie inférieure du silo (1) pour se terminer sous la forme d'une goulotte (12) d'amenée des matériaux dans la chambre (5).
PCT/SE1993/000897 1992-10-28 1993-10-28 Procede de recuperation en continu de materiau tel que le caoutchouc et installation d'exploitation de ce procede Ceased WO1994010507A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54365/94A AU5436594A (en) 1992-10-28 1993-10-28 Method for continuous recovery of, for example, rubber and plant for the performance of the method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9203166A SE516080C2 (sv) 1992-10-28 1992-10-28 Förfarande och anordning för återvinning av sådana beståndsdelar som gas, olja och fasta ämnen från exempelvis gummi
SE9203166-5 1992-10-28

Publications (1)

Publication Number Publication Date
WO1994010507A1 true WO1994010507A1 (fr) 1994-05-11

Family

ID=20387599

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1993/000897 Ceased WO1994010507A1 (fr) 1992-10-28 1993-10-28 Procede de recuperation en continu de materiau tel que le caoutchouc et installation d'exploitation de ce procede

Country Status (3)

Country Link
AU (1) AU5436594A (fr)
SE (1) SE516080C2 (fr)
WO (1) WO1994010507A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2139187C1 (ru) * 1997-10-24 1999-10-10 Антоненко Владимир Федорович Способ термической переработки изношенных шин
EP2184334A1 (fr) * 2008-10-31 2010-05-12 Peter Spörri Procédé et dispositif de recyclage de matériaux contenant de l'hydrocarbure
WO2016168894A1 (fr) 2015-04-20 2016-10-27 Rainbow Bee Eater Ip Pty Ltd Appareil et procédé de pyrolyse
EP2883939B1 (fr) * 2012-02-21 2021-07-21 Xixia Dragon Into Special Material Co. Ltd Dispositif de pyrolyse de matière à base de charbon à manchon de forme cylindrique
US11999920B2 (en) 2020-09-14 2024-06-04 Ecolab Usa Inc. Cold flow additives for plastic-derived synthetic feedstock
US12031097B2 (en) 2021-10-14 2024-07-09 Ecolab Usa Inc. Antifouling agents for plastic-derived synthetic feedstocks
US12304888B2 (en) 2021-03-10 2025-05-20 Ecolab Usa Inc. Stabilizer additives for plastic-derived synthetic feedstock

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2030273A (en) * 1978-09-12 1980-04-02 Hitachi Shipbuilding Eng Co >Apparatus for treating combustible wastes
WO1981002302A1 (fr) * 1980-02-12 1981-08-20 Deutsche Kommunal Anlagen Dispositif de vidange pour une installation de pyrolyse
EP0224999A1 (fr) * 1985-09-30 1987-06-10 G.G.C. Inc Procédé et système de pyrolyse et de combustion
EP0257018A2 (fr) * 1986-08-14 1988-02-24 VOEST-ALPINE Aktiengesellschaft Procédé pour l'utilisation thermique de déchets et/ou de combustibles résiduaires
EP0330070A1 (fr) * 1988-02-20 1989-08-30 Theo Stenau Installation pour opérer un procédé de conversion à basse température
US4900401A (en) * 1988-06-20 1990-02-13 Horton Norman P Continuous pyrolysis system for tire shreds
US5084141A (en) * 1987-11-11 1992-01-28 Holland Kenneth M Process of destructive distillation of organic material
EP0495766A2 (fr) * 1991-01-14 1992-07-22 TBR Gesellschaft f. techn. Bodenreinigung Ges.m.b.H. Procédé pour l'utilisation de la matière résiduelle de pyrolyse et du gaz de pyrolyse

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2030273A (en) * 1978-09-12 1980-04-02 Hitachi Shipbuilding Eng Co >Apparatus for treating combustible wastes
WO1981002302A1 (fr) * 1980-02-12 1981-08-20 Deutsche Kommunal Anlagen Dispositif de vidange pour une installation de pyrolyse
EP0224999A1 (fr) * 1985-09-30 1987-06-10 G.G.C. Inc Procédé et système de pyrolyse et de combustion
EP0257018A2 (fr) * 1986-08-14 1988-02-24 VOEST-ALPINE Aktiengesellschaft Procédé pour l'utilisation thermique de déchets et/ou de combustibles résiduaires
US5084141A (en) * 1987-11-11 1992-01-28 Holland Kenneth M Process of destructive distillation of organic material
EP0330070A1 (fr) * 1988-02-20 1989-08-30 Theo Stenau Installation pour opérer un procédé de conversion à basse température
US4900401A (en) * 1988-06-20 1990-02-13 Horton Norman P Continuous pyrolysis system for tire shreds
EP0495766A2 (fr) * 1991-01-14 1992-07-22 TBR Gesellschaft f. techn. Bodenreinigung Ges.m.b.H. Procédé pour l'utilisation de la matière résiduelle de pyrolyse et du gaz de pyrolyse

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2139187C1 (ru) * 1997-10-24 1999-10-10 Антоненко Владимир Федорович Способ термической переработки изношенных шин
EP2184334A1 (fr) * 2008-10-31 2010-05-12 Peter Spörri Procédé et dispositif de recyclage de matériaux contenant de l'hydrocarbure
EP2883939B1 (fr) * 2012-02-21 2021-07-21 Xixia Dragon Into Special Material Co. Ltd Dispositif de pyrolyse de matière à base de charbon à manchon de forme cylindrique
WO2016168894A1 (fr) 2015-04-20 2016-10-27 Rainbow Bee Eater Ip Pty Ltd Appareil et procédé de pyrolyse
EP3285920A4 (fr) * 2015-04-20 2018-12-19 Rainbow Bee Eater IP Pty Ltd. Appareil et procédé de pyrolyse
US10696904B2 (en) 2015-04-20 2020-06-30 Rainbow Bee Eater Ip Pty Ltd Pyrolysis apparatus and method
US11999920B2 (en) 2020-09-14 2024-06-04 Ecolab Usa Inc. Cold flow additives for plastic-derived synthetic feedstock
US12503663B2 (en) 2020-09-14 2025-12-23 Ecolab Usa Inc. Cold flow additives for plastic-derived synthetic feedstock
US12304888B2 (en) 2021-03-10 2025-05-20 Ecolab Usa Inc. Stabilizer additives for plastic-derived synthetic feedstock
US12031097B2 (en) 2021-10-14 2024-07-09 Ecolab Usa Inc. Antifouling agents for plastic-derived synthetic feedstocks

Also Published As

Publication number Publication date
SE9203166D0 (sv) 1992-10-28
SE9203166L (sv) 1994-04-29
SE516080C2 (sv) 2001-11-12
AU5436594A (en) 1994-05-24

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