EP0630957B1 - Niederdruckpyrolyseofen zur Vorrichtung von industriellen organischen Abfällen - Google Patents

Niederdruckpyrolyseofen zur Vorrichtung von industriellen organischen Abfällen Download PDF

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Publication number
EP0630957B1
EP0630957B1 EP93870115A EP93870115A EP0630957B1 EP 0630957 B1 EP0630957 B1 EP 0630957B1 EP 93870115 A EP93870115 A EP 93870115A EP 93870115 A EP93870115 A EP 93870115A EP 0630957 B1 EP0630957 B1 EP 0630957B1
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EP
European Patent Office
Prior art keywords
vessel
oven according
resistors
condenser
temperature
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.)
Expired - Lifetime
Application number
EP93870115A
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English (en)
French (fr)
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EP0630957A1 (de
Inventor
Rémy Gourhan
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Individual
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Individual
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Priority to AT93870115T priority Critical patent/ATE170906T1/de
Priority to DE69320946T priority patent/DE69320946T2/de
Priority to EP93870115A priority patent/EP0630957B1/de
Publication of EP0630957A1 publication Critical patent/EP0630957A1/de
Application granted granted Critical
Publication of EP0630957B1 publication Critical patent/EP0630957B1/de
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    • 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
    • C10B19/00—Heating of coke ovens by electrical means
    • 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
    • C10B1/00—Retorts
    • C10B1/10—Rotary retorts
    • 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

Definitions

  • the invention relates to an oven for destruction pyrolytic under reduced pressure of industrial waste organic, comprising a sealed tubular enclosure, a pumping group connected to the enclosure through a condenser, means for introducing waste into the enclosure and heating means thereof.
  • Patent document EP-A-0 324 668 proposed perform pyrolysis under reduced pressure, at temperatures between 400 ° and 600 ° C. According to what document the destruction was complete enough to only generate non-polluting by-products and marketable, or usable on site as "clean" fuels in energy generators thermal.
  • the ovens according to EP-A-0 324 668 were made of metallic tubular enclosures, rotating around their axis, and arranged in chambers in refractory masonry for exterior heating speaker.
  • the object of the invention is to improve the efficiency of the vacuum pyrolysis on an industrial scale.
  • the invention provides an oven for pyrolytic destruction under reduced pressure of waste organic industrialists, comprising a tubular enclosure waterproof, a pumping unit connected to the enclosure through a condenser, means for introducing waste into the enclosure, and means for heating the latter, characterized in that the heating means are consisting of extended rectilinear electrical resistors parallel to the main axis inside the enclosure near the wall, mounted naked and suitable for ranges, by passage of current from a source outdoor, at a temperature of at least 1,200 ° C.
  • a refractory lining applied to the surface internal of the enclosure opposite the resistances, and elongated reflective screens between the upholstery refractory and resistances.
  • the resistors will consist of Inconel tubes capable of continuously supporting the required temperature, and resist waste vapors and decomposition products satisfactorily.
  • an oven for pyrolytic destruction under reduced pressure comprises a sealed enclosure 1 as a whole, comprising a tubular body 10 designed to withstand relative pressures directed towards the main axis of at least one bar (10 5 Pa), and two bottoms in domed caps 11 and 12, also provided for supporting external overpressures.
  • a bottom 11 is opening, and provided with a peripheral seal to ensure sealing when this bottom is closed.
  • the shaft 14 transmits a rotation of the motor 13 in a cylindrical basket, perforated, whose axis, in extension of the shaft 14a, is parallel to that of the body 10, but offset vertically downwards.
  • Rollers 13 a not visible in FIG. 1, support the basket 13 in enclosure 1.
  • resistors heater 15 made of extended Inconel 601 tubes parallel to the axis of the body, in the space between the basket and the upper part of the body 10, and released by the vertical offset between the basket axes 13 and body 10.
  • the upper wall of the body, facing the resistors 15, is provided with a refractory lining 16, and polished plates to form reflectors 17 are disposed between the resistors 15 and the refractory lining 16, and have folded edges to accentuate the concentration. radiation towards the axis of the body 10.
  • the resistors are supplied with electrical energy by an adjustable source at low impedance 19 (approximately 1,000 amperes at a few tens of volts). They are calculated to reach radiant surface temperatures of at least 1,200 ° C.
  • the enclosure 1 is arranged in an outer refractory lining so that the body temperature reaches, in regime, a temperature between 400 and 600 ° C.
  • the pumping group 4 comprises, conventionally when it comes to evacuating the enclosure a mixture of condensable vapors and noncondensable gases, an ejector 40 or a convergent nozzle injects a liquid jet into a diverging nozzle opening into a liquid case 40a from which the gases entrained by the jet are taken up by a ring pump liquid 41.
  • the condenser 2 has two towers 20 and 21, where multiple nozzles 20 a and 21 a respectively spray water in jets directed downwards.
  • the water and condensates collect in a lower collector 22, from where a pump 23 sends them into a separator 3, consisting of a cover 30 with baffled partitions 31 and 32.
  • a pipe 34 evacuates the water for allocate in the direction of the nozzles 20a and 21a, while the hydrocarbons in a supernatant chamber 33 are removed by skimming.
  • the enclosure is put under vacuum by pumping group 4, then resistors 15 are powered up to bring speaker 1 to a thermal equilibrium, the resistances being at 1200 ° C at less, and the body 10 reaching a temperature of 400 to 600 ° C.
  • the basket is put in rotation, at a speed of about 1 rpm, to regulate the temperature and, consequently, achieve diet conditions faster.
  • the incondensables which remain for a very short time in enclosure 1, are found at the outlet of the ring pump liquid 41, to be either recovered for use, either burnt in a flare.
  • Light condensates, intercepted by condenser 2 are separated from the water in the separator 3 and will either be recovered or recycled in the oven.
  • the solid residues are stirred by the basket 13.
  • the cracked residues which have not been fully decomposed at enclosure temperature are also brewed by basket 13. Although these residues be in the fine particle size set they are distributed throughout the volume of the enclosure, their movements are not slowed down by the gas phase, whose pressure is low. These residues can therefore come close to resistors 15, and are then directly subject to their radiation. This radiation is close to that of a black body at this temperature, with a continuous spectrum that extends from yellow to infrared.
  • the not completely decomposed residues selectively absorb spectrum components capable of breaking bonds residual, so that the cracking is completed.
  • the enclosure could be arranged with its vertical axis, the resistors then being placed in a cage regularly spaced near the wall.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (8)

  1. Ofen für die pyrolytische Vernichtung unter geringem Druck von organischen Industrieabfällen, bestehend aus einem zylindrischen, dichten Gehäuse (1), einer Pumpengruppe (4), die mit dem Gehäuse über einen Kondensator (2) verbunden ist, Einführungsmitteln (11, 18) für die Abfälle in das Gehäuse und Heizmitteln (15) für dieses, dadurch gekennzeichnet, daß die Heizmittel aus elektrischen Widerständen (15) bestehen, die sich geradlinig parallel zu der Hauptachse im Inneren des Gehäuses (1) neben der Wand erstrecken, die unisoliert montiert sind und die durch den Durchgang eines von einer äußeren Quelle (19) ausgehenden Stroms auf wenigstens 1200°C gebracht werden können.
  2. Ofen nach Anspruch 1, dadurch gekennzeichnet, daß das zylindrische Gehäuse in seiner Hauptachse im wesentlichen horizontal angeordnet ist.
  3. Ofen nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß er im Inneren des Gehäuses (1) Mittel zur Wärmeisolierung aufweist, die aus einer feuerfesten Auskleidung (16) bestehen, die hinsichtlich der Widerstände (15) auf der Innenwand des Gehäuses (1) aufgebracht ist, sowie aus reflektierenden Platten (17), die zwischen der feuerfesten Auskleidung (16) und den Widerständen (15) angeordnet sind.
  4. Ofen nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Widerstände aus Röhren aus Inconel bestehen.
  5. Ofen nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß er einen zylindrischen, perforierten Korb (13) aufweist, der um eine Achse (14a) drehbar ist, die parallel zu der des Gehäuses (1) senkrecht unter dieser ausgerichtet ist.
  6. Ofen nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Gehäuse außen mit einer wärmedämmenden Verkleidung versehen ist.
  7. Ofen nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Kondensator (2) ein Kontaktkondensator ist und wenigstens eine Kolonne (20, 21) aufweist, die mit Zerstäubungsdüsen (20a, 21a) ausgerüstet ist, die nach unten gerichtet sind und durch unter Druck stehendes Wasser versorgt werden, sowie mit einer Beschleunigungspumpe (23) mit einer Lüftungsöffnung, die mit dem unteren Bereich (22) der Kolonne verbunden ist, und einer Förderöffnung, die mit einem Speicherbehälter (3) für verdünnte Kondensate verbunden ist.
  8. Ofen nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Pumpengruppe (4) hintereinander eine Saugstrahlpumpe (40) und eine Flüssigkeitsringpumpe (41) aufweist.
EP93870115A 1993-06-23 1993-06-23 Niederdruckpyrolyseofen zur Vorrichtung von industriellen organischen Abfällen Expired - Lifetime EP0630957B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT93870115T ATE170906T1 (de) 1993-06-23 1993-06-23 Niederdruckpyrolyseofen zur vorrichtung von industriellen organischen abfällen
DE69320946T DE69320946T2 (de) 1993-06-23 1993-06-23 Niederdruckpyrolyseofen zur Vorrichtung von industriellen organischen Abfällen
EP93870115A EP0630957B1 (de) 1993-06-23 1993-06-23 Niederdruckpyrolyseofen zur Vorrichtung von industriellen organischen Abfällen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93870115A EP0630957B1 (de) 1993-06-23 1993-06-23 Niederdruckpyrolyseofen zur Vorrichtung von industriellen organischen Abfällen

Publications (2)

Publication Number Publication Date
EP0630957A1 EP0630957A1 (de) 1994-12-28
EP0630957B1 true EP0630957B1 (de) 1998-09-09

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EP93870115A Expired - Lifetime EP0630957B1 (de) 1993-06-23 1993-06-23 Niederdruckpyrolyseofen zur Vorrichtung von industriellen organischen Abfällen

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EP (1) EP0630957B1 (de)
AT (1) ATE170906T1 (de)
DE (1) DE69320946T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2745819B1 (fr) * 1996-03-11 1999-04-09 Seit Installation de traitement thermique de dechets industriels, hospitaliers, menagers et assimilables avec protection de l'environnement au-dela des normes fixees
AU4374197A (en) * 1996-10-03 1998-04-24 Carbonium Corporation Scrap pyrolysis system and reactor
US5820736A (en) * 1996-12-23 1998-10-13 Bouziane; Richard Pyrolysing apparatus
FR2830536B1 (fr) * 2001-10-04 2004-09-10 Remy Gourhan Procede et dispositif pour traiter par pyrolyse des dechets fluides
GB0912214D0 (en) 2009-07-14 2009-08-26 Eden Robert D Pyrolyser
FR3098521B1 (fr) 2019-07-10 2021-12-31 Gourhan Remy Dispositif pour la destruction des déchets industriels spéciaux ou toxiques par pyrolyse et sa mise en œuvre.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1561800A (en) * 1976-10-05 1980-03-05 Storrs K L Process and apparatus for separating and recoveringliquid roducts from solid an liquid substance
US4402791A (en) * 1981-08-10 1983-09-06 Brewer John C Apparatus for pyrolyzing shredded tires
ES2006264A6 (es) * 1988-01-11 1989-04-16 Iriart Henrri Joseph F Sistema para la transformacion de residuos.
FR2685449B1 (fr) * 1991-12-23 1994-04-01 Soteco Four de pyrolyse sous basse pression pour la destruction de dechets organiques industriels.

Also Published As

Publication number Publication date
EP0630957A1 (de) 1994-12-28
ATE170906T1 (de) 1998-09-15
DE69320946T2 (de) 1999-05-27
DE69320946D1 (de) 1998-10-15

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