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WO1999016848A1 - Recuperation continue de gaz combustibles a partir de pneumatiques - Google Patents

Recuperation continue de gaz combustibles a partir de pneumatiques Download PDF

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Publication number
WO1999016848A1
WO1999016848A1 PCT/CA1998/000906 CA9800906W WO9916848A1 WO 1999016848 A1 WO1999016848 A1 WO 1999016848A1 CA 9800906 W CA9800906 W CA 9800906W WO 9916848 A1 WO9916848 A1 WO 9916848A1
Authority
WO
WIPO (PCT)
Prior art keywords
sublimation
tires
chamber
chambers
sublimation chamber
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/CA1998/000906
Other languages
English (en)
Inventor
Alain Mineau
Yvon Laverdure
Sylvain Martel
Jean-François BROUILLETTE
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.)
THERMEX ENERGY RECOVERY CORP
Original Assignee
THERMEX ENERGY RECOVERY CORP
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 THERMEX ENERGY RECOVERY CORP filed Critical THERMEX ENERGY RECOVERY CORP
Priority to AU92487/98A priority Critical patent/AU9248798A/en
Publication of WO1999016848A1 publication Critical patent/WO1999016848A1/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
    • 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
    • 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
    • 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

  • This invention relates to a process and a system for converting tires or the like into combustible gases in an continuous, non-stop manner. More particularly, the present invention is concerned with a process and a system which operate continuously and which make it possible to provide a continuous supply of combustible gases by alternating the operation of at least two sublimation chambers which feed their output of gaseous products into a single line of combustible gases, the latter to be used immediately in a burner, a condenser or the like.
  • U.S. Patent 5,295,499 discloses a dry distillation gas generator wherein used tires are thermally decomposed to produce dry distillate gases. After the dry distillation, the remains cannot be recycled because at the end of the operation the temperature is too high, making the carbon particles and steel truly non-usable, so that they have to be disposed of. The reason for this is that as the reaction proceeds, the temperature goes up to 250-350°C where it reaches a plateau, which is followed by a sudden rise to about 700°C, which is believed to be the reason why carbon particles and steel are converted to useless material.
  • U.S. Patent 3,362,887 discloses treating refuse and garbage in a first chamber for a preliminary treatment, and transferring the refuse and garbage thus treated in the first chamber, into a second chamber for a final treatment.
  • U.S. Patent 4,839,151 discloses a recovery process for used tires in which char is separated from steel and glass and is thereafter recovered.
  • U.S. Patent 4,900,401 discloses a complex continuous pyrolysis system for tire shreds.
  • U.S. Patent 5,286,374 discloses a process for cracking waste rubber tires which is characterized by critical temperature ranges and the use of a mica catalyst. It will therefore be seen that there is a need for a system which is continuous and efficient in converting whole or shredded tires into useful combustible gases and which does not produce unrecoverable useless materials.
  • the process comprises the steps of providing a plurality of sublimation chambers; feeding a predetermined quantity of whole or shredded tires into at least one sublimation chamber; igniting the tires while introducing air into the above sublimation chamber at a pressure between about 0.1 and about 0.6 lb/in above atmospheric; maintaining ignition of the tires therein until the temperature of the gases exiting from the above sublimation chamber is between about 40° and 65°C, and then stopping the ignition; adjusting and modulating the quantity of air introduced in the above sublimation chamber so as to obtain a predetermined quantity of energy produced by combustion of the gases exiting from the sublimation chamber, said predetermined quantity amounting to at least about 2,000,000 BTU; stopping gasification of the tires when temperature inside the sublimation chamber reaches at most about 500°C and before initiation of carbon black combustion in the above sublimation chamber; cooling the remnant material formed in the above sublimation chamber to
  • air is introduced into the above sublimation chamber at a pressure which is preferably between about 0.25 and 0.40 lb/in above atmospheric.
  • Gasification of the tires may be terminated by injection of steam or an inert gas into the above sublimation chamber.
  • steam When steam is used to terminate the combustion it will remove gases and oil present in the carbon black, so that during that stage of the process there will be a mixture of oil, steam and gases produced by the process, and this mixture will be condensed and/or burned.
  • a conveyor is provided outside the sublimation chambers and the remnant material is scraped away onto this conveyor to be disposed of.
  • the system according to the invention comprises a plurality of sublimation chambers; means for feeding a predetermined quantity of whole or shredded tires into the sublimation chambers, and control means to alternate the feeding from at least one sublimation chamber to other sublimation chambers.
  • Each chamber comprises means for igniting the whole or shredded tires and means for introducing air into the above chamber at a pressure between about 0.1 and about 0.6 lb/in 2 above atmospheric; a gas outlet enabling combustible gases obtained from the tires to exit from the above sublimation chamber; a tire feeding trap door and means to open the trap door when the feeding means are in operation to feed the above sublimation chamber; an exit door and means for opening and closing the exit door; an access door opposite the exit door and means for opening and closing the access door; means extending through the same access door until reaching the exit door for scraping away remnant material remaining on the floor of the sublimation chamber after a complete cycle when substantially all tires present therein have been converted into combustible gases, the remnant material then being scrap
  • the system also comprises conveyor means to receive the scraped away remnant material; first control means effective to maintain the tires ignited until the temperature of the combustible gases which exit from the sublimation chamber is between about 40° and 65°C, and to stop the ignition of the tires when the temperature has reached about 40° to 65°C; second control means enabling to adjust and modulate the quantity of air introduced in the above sublimation chamber so as to obtain a predetermined quantity of energy produced by combustion of the gases exiting from the sublimation chamber, said predetermined quantity amounting to at least about 2,000,000 BTU, preferably about 5,000,000 to 13,000,000 BTU; third control means for stopping gasification of the tires when temperature inside the sublimation chamber reaches at most about 500°C, and before any initiation of carbon black combustion in the sublimation chambers; means for cooling remnant material formed in the sublimation chambers to a temperature which prevents combustion of the carbon black and for flushing out gases remaining in said sublimation chamber together with oil present in said carbon black; and means for alternating treatment in the sublimation chambers
  • the feeding means preferably comprises a tire conveyor having an articulated portion enabling to feed the first sublimation chamber when in upwardly raised position and the second sublimation chamber when the articulated portion is lowered at the level of the conveyor.
  • the igniting means are provided in the wall of the sublimation chambers, and the sublimation chambers each have a floor formed with openings mounting air diffusers enabling air to be injected into the sublimation chambers.
  • FIG. 1 is a longitudinal cross-section view of a system according to the invention
  • FIG. 2 is a top view of the same
  • FIG. 3 is a top view of the bottom of a sublimation chamber; and FIG. 4 is a partial cross-section view of air diffusers and nozzles used for injecting air into a sublimation chamber at the bottom thereof.
  • each sublimation chamber (Figs. 3 and 4) is formed with a plurality of air diffusers 55 which are well known in the art and may be constructed as shown particularly in Fig. 4. These air diffusers are preferably distributed as shown in Fig. 3 for better results.
  • the thermal process becomes self-sustaining and only requires regular air inflow through air diffusers 55, as mentioned above. Also, when the burners are operated to ignite the load of tires 57, sufficient air is introduced through diffusers 55 to provide in the sublimation chamber a pressure between about 0.1 and about 0.6 lb/in 2 , preferably between about 0.25 and 0.40 lb/in above atmospheric.
  • both sublimation chambers 1 and 3 are generally identical, except for a few details that will be discussed later.
  • sublimation chamber 1 will now be described in detail. It comprises a tire feeding trap door 1 1 which opens through a lifting means, not shown, when sublimation chamber 1 is not in operation and tires are intended to be fed therein.
  • Sublimation chamber 1 also comprises an exit door 13 which is provided on one side of the chamber as shown.
  • This door operates by being slidably liftable by means of an hydraulic cylinder 15.
  • an hydraulic cylinder 15 there is a ram access door 17 exactly opposite exit door 13.
  • Ram access door 17, as is the case with exit door 13 is also slidably liftable by means of an hydraulic cylinder 19.
  • the sublimation chamber also comprises ram 21 which is only schematically illustrated in the drawings and which is operated by means of an hydraulic cylinder, not shown.
  • Ram 21 is mounted to extend through ram access door, all through sublimation chamber 1 while following bottom 23 thereof, until reaching exit door 13.
  • sublimation chamber 1 is provided with gas security valve 25 and exhaust flue 26 which receives all combustible gases which are produced in the chamber while the latter is in operation.
  • the gases are normally sent to burner 59 (Fig. 2), via line 51 , or if desired, they may be partly converted into oils in condenser 61 , as is well known in the art.
  • sublimation chamber 3 the latter will be seen to be generally identical to chamber 1 except that the ram access door, the exit door and the ram are mounted in a mirror-like arrangement. So, sublimation chamber 3 correspondingly has a trap door 27, an exit door 29, a ram access door 31, a ram 33, a safety valve 35 and an exhaust flue 36 which also communicates with gas line 51.
  • the system comprises a tire conveyor 37 which is mounted in known manner above the chambers, as shown. As illustrated, in order to facilitate an alternate feeding of sublimation chambers 1 or 3 through trap door 11 or trap door 27, tire conveyor 37 is constructed of two sections 39 and 41, the latter being provided with an articulated part 43.
  • articulated part 43 when it is intended to feed sublimation chamber 1, articulated part 43 is lifted in the direction of arrow 45 thereby isolating section 39 and enabling the conveyor to feed all the tires into sublimation chamber 1 via trap door 11. Conversely, when it is intended to stop the feeding into sublimation chamber 1 , and initiate the feed into sublimation chamber 3, articulated part 43 is lowered in the direction of arrow 47 until it fits exactly with the free end of conveyor section 39, which will permit the tires to continue into conveyor section 41 in the direction of arrow 49 until they reach trap door 27 which, as will be discussed later, will automatically open.
  • an automatic multifunction control which is not illustrated but which can easily be designed by anyone skilled in the art so as to be effective to carry out the following operations.
  • a means is provided so that trap door 11 is opened and all remaining doors are closed while tire conveyor 37 is put into operation.
  • the control is programmed to automatically close trap door 11, lower articulated part 43 of tire conveyor 37, open trap door 27 and initiate gas burner 5 and 7 which are stopped after about 15 minutes.
  • the tires which are in sublimation chamber 1 begin to be converted into combustible gases under the conditions mentioned above, and the gases exit the chamber through gas flue 26 and will finally be delivered into a gas line 51 to be condensed at 61 or burned at 59.
  • additional tires are being dumped into sublimation chamber 3 through trap door 27.
  • the remnant material generally consists of about 10% steel belts and about 20% carbon char with respect to the initial mass of tires.
  • control operates to lift exit door 13 and ram access door 17, after which ram 21 is caused to extend through ram access door 17, all through the width of sublimation chamber 1 while scraping away any char and steel belt on the floor of sublimation chamber 1 , until the char and steel belt are dumped onto conveyor 9 which will deliver this material for disposal, such as by recycling, as is well known to those skilled in the art.
  • the automatic multifunction control is also designed to adjust the introduction of steam and water, respectively to remove oil from carbon particles and cooling the solid residues.
  • control acts to initiate the conversion of tires in sublimation chamber 3 in the same manner as the previous operation in sublimation chamber 1. So when gas production in sublimation chamber 1 is terminated, the control immediately acts to start the production in sublimation chamber 3 with the result that there is always a continuous production of combustible gases from tires.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne une pluralité de chambres de sublimation (1, 3) et un transporteur (9) de matériaux résiduels monté à l'opposé desdites chambres. Un transporteur (37) de pneumatiques alimente en alternance les chambres de manière que, lorsque les pneumatiques sont traités dans une chambre, les autres chambres sont remplies de pneumatiques supplémentaires. Chaque chambre est associée à un brûleur (5, 7) et à une entrée d'air (55) pour transformer les pneumatiques en gaz combustibles et à un dispositif (21) qui enlève en raclant tout matériau carbonisé et les nappes métalliques qui restent dans la chambre après l'opération de transformation. On effectue une surveillance pour assurer une production continue de gaz combustibles en alternant l'opération dans la chambre.
PCT/CA1998/000906 1997-09-29 1998-09-24 Recuperation continue de gaz combustibles a partir de pneumatiques Ceased WO1999016848A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU92487/98A AU9248798A (en) 1997-09-29 1998-09-24 Continuous recovery of combustible gases from tires

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93759197A 1997-09-29 1997-09-29
US08/937,591 1997-09-29

Publications (1)

Publication Number Publication Date
WO1999016848A1 true WO1999016848A1 (fr) 1999-04-08

Family

ID=25470136

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1998/000906 Ceased WO1999016848A1 (fr) 1997-09-29 1998-09-24 Recuperation continue de gaz combustibles a partir de pneumatiques

Country Status (2)

Country Link
AU (1) AU9248798A (fr)
WO (1) WO1999016848A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1347238A3 (fr) * 2002-03-18 2004-05-06 Ecoprocess AD Appareil pour la destruction thermique de pneus entiers
EP2103874A3 (fr) * 2008-03-21 2011-05-04 Roberto, Nicola Procédé de traitement de déchets, en particulier des résidus métalliques provenant de pneus coupés, et appareil correspondant
CN102115672A (zh) * 2010-01-04 2011-07-06 江宏 利用高温蒸汽与热源分解处理物的反应炉装置
WO2014110640A1 (fr) * 2013-01-18 2014-07-24 Usina 01 Reciclagem De Produtos Sólidos Ltda Réacteur de pyrolyse et système d'automatisation
EP3173458A1 (fr) * 2015-11-30 2017-05-31 Solovyov, Alexander Installation de pyrolyse seche de caoutchouc usage
CZ308787B6 (cs) * 2019-09-06 2021-05-19 TyReCycle a.s. Způsob kontinuálního termického zpracování ojetých nebo poškozených či jinak znehodnocených pneumatik a zařízení k provádění tohoto způsobu

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825384A (ja) * 1981-08-07 1983-02-15 Kougen Chin 廃タイヤなどを焼却し再生物を回収する方法およびその装置
JPS61162587A (ja) * 1985-01-09 1986-07-23 Takeo Kurusu 廃タイヤの再生液化重油の製造装置
EP0562110A1 (fr) * 1990-12-21 1993-09-29 Emu.Dee.Aru Co., Ltd. Appareil de distillation seche a gazeification par combustion, possedant un generateur de gaz de distillation seche et une section a bruleur de gaz de combustion
WO1995027018A1 (fr) * 1994-03-30 1995-10-12 Hyeon Hee Lee Procede et appareil d'extraction de gaz par decomposition thermique de pneus uses
EP0694600A1 (fr) * 1994-07-28 1996-01-31 2 M.A. S.r.l. Procédé et installation pour la production de substances combustibles
US5653180A (en) * 1994-07-25 1997-08-05 Kinsei Sangyo Co., Ltd. Apparatus for incinerating waste material by dry distillation & gasification

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825384A (ja) * 1981-08-07 1983-02-15 Kougen Chin 廃タイヤなどを焼却し再生物を回収する方法およびその装置
JPS61162587A (ja) * 1985-01-09 1986-07-23 Takeo Kurusu 廃タイヤの再生液化重油の製造装置
EP0562110A1 (fr) * 1990-12-21 1993-09-29 Emu.Dee.Aru Co., Ltd. Appareil de distillation seche a gazeification par combustion, possedant un generateur de gaz de distillation seche et une section a bruleur de gaz de combustion
WO1995027018A1 (fr) * 1994-03-30 1995-10-12 Hyeon Hee Lee Procede et appareil d'extraction de gaz par decomposition thermique de pneus uses
US5653180A (en) * 1994-07-25 1997-08-05 Kinsei Sangyo Co., Ltd. Apparatus for incinerating waste material by dry distillation & gasification
EP0694600A1 (fr) * 1994-07-28 1996-01-31 2 M.A. S.r.l. Procédé et installation pour la production de substances combustibles

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 100 (C - 164) 28 April 1983 (1983-04-28) *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 366 (C - 390) 6 December 1986 (1986-12-06) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1347238A3 (fr) * 2002-03-18 2004-05-06 Ecoprocess AD Appareil pour la destruction thermique de pneus entiers
EP2103874A3 (fr) * 2008-03-21 2011-05-04 Roberto, Nicola Procédé de traitement de déchets, en particulier des résidus métalliques provenant de pneus coupés, et appareil correspondant
CN102115672A (zh) * 2010-01-04 2011-07-06 江宏 利用高温蒸汽与热源分解处理物的反应炉装置
CN102115672B (zh) * 2010-01-04 2013-08-14 江宏 利用高温蒸汽与热源分解处理物的反应炉装置
WO2014110640A1 (fr) * 2013-01-18 2014-07-24 Usina 01 Reciclagem De Produtos Sólidos Ltda Réacteur de pyrolyse et système d'automatisation
EP3173458A1 (fr) * 2015-11-30 2017-05-31 Solovyov, Alexander Installation de pyrolyse seche de caoutchouc usage
CZ308787B6 (cs) * 2019-09-06 2021-05-19 TyReCycle a.s. Způsob kontinuálního termického zpracování ojetých nebo poškozených či jinak znehodnocených pneumatik a zařízení k provádění tohoto způsobu
US12151404B2 (en) 2019-09-06 2024-11-26 TyReCycle a.s. Method for the continuous thermal processing of used, damaged or otherwise degraded tires, and a device for carrying out this method

Also Published As

Publication number Publication date
AU9248798A (en) 1999-04-23

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