EP0330070A1 - Installation pour opérer un procédé de conversion à basse température - Google Patents

Installation pour opérer un procédé de conversion à basse température Download PDF

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Publication number
EP0330070A1
EP0330070A1 EP89102629A EP89102629A EP0330070A1 EP 0330070 A1 EP0330070 A1 EP 0330070A1 EP 89102629 A EP89102629 A EP 89102629A EP 89102629 A EP89102629 A EP 89102629A EP 0330070 A1 EP0330070 A1 EP 0330070A1
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EP
European Patent Office
Prior art keywords
furnace
plant according
conveyor belt
conversion
solid
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Withdrawn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
EP89102629A
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German (de)
English (en)
Inventor
Theo Stenau
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
Publication of EP0330070A1 publication Critical patent/EP0330070A1/fr
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a system for carrying out a low-temperature conversion method according to the preamble of the main claim.
  • EP 52 334 B1 describes a process for obtaining solid, liquid and gaseous fuels from organic material, in which it is proposed, among other things, that the dry starting material, e.g. B. dried sewage sludge, granular or as a powder continuously, for. B. is conveyed by means of a screw conveyor through a heated reaction tube.
  • the dry starting material e.g. B. dried sewage sludge, granular or as a powder continuously
  • B. is conveyed by means of a screw conveyor through a heated reaction tube.
  • Such a system has proven itself in the experimental stage and is able to work at normal pressure and without the use of reduction and oxidation processes.
  • the invention has for its object to use this method developed in the experimental stage on an industrial scale and to propose a suitable plant.
  • the invention proposes a converting furnace in which a relatively slowly revolving, heat-resistant conveyor belt is arranged, onto which the material is applied, solid material present as coal being obtained at the end of the conveyor belt.
  • the resulting gases are passed through a condensation column and oil and water are condensed as a residue, the oil also being able to be used as a fuel or as a fat raw material in the chemical industry.
  • the uncondensed gases can be used as fuel gases to generate the required process energy, but some of the uncondensed gases are returned to the furnace to support conversion that is as oxygen-free as possible.
  • the plant according to the invention therefore works inexpensively, since the material to be fed in and the material to be discharged simultaneously bring about the oxygen closure of the conversion furnace.
  • the material to be fed in and converted is compressed in the area of the material feed and thereby closes this access to the interior of the conversion furnace in a gas-tight manner and the solid obtained is also discharged, i.e. the coal, oxygen-tight by a screw conveyor from a corresponding collection bunker at the end of the conveyor belt.
  • the furnace can be heated via a central Heating or via individual burners.
  • the coal obtained can also be used here, which is still obtained with a heat fraction of approximately 300 ° to 350 °.
  • electrical heating of the furnace is also conceivable, as is warm air heating.
  • conveyor belts can be arranged within the oven in order to achieve a good conversion, in particular to carry out a good drying of the goods.
  • the material to be converted is placed in a relatively thin layer of about 8 cm on the conveyor belt and conveyed through the oven, the average temperature in the oven being 250-380 ° C.
  • the coal obtained burns out completely and any pollutants contained are firmly and safely bound in the ashes.
  • the coal has a calorific value that is comparable to the calorific value of briquettes.
  • the conveyor belts are arranged one above the other and the conveyor belts are heated in the space between the upper and lower run, it is possible to set up the furnace vertically instead of elongated. It is then particularly advantageous that individual parts of the walls can be detached, so that repair work at different heights with respect to the individual conveyor belts can be carried out easily.
  • 1 denotes a conversion furnace which, in the exemplary embodiment shown, consists of an insulating furnace jacket 8, in which corresponding openings are provided for carrying out inspections, etc., which are not shown in the drawing for reasons of clarity.
  • an inner furnace 9 is provided which is surrounded by hot combustion gases on all sides, the space between the furnace shell 8 and the inner furnace 9 being connected to the outside atmosphere via a chimney system (not shown in the drawing).
  • a circulating conveyor belt 2 is provided inside the inner furnace 9, which extends over the entire length of the inner furnace 9 and has a material feed 5 and a solid material discharge 6. Furthermore, a gas exhaust line 7 connects to the inner furnace 9 and leads to a gas and liquid condenser 3 leads.
  • the liquid obtained here namely oil and water, collects in a corresponding collecting container 18.
  • the oil can be separated from the water and the oil can either be used to obtain the process energy or can be used for another purpose.
  • the gas and liquid condenser 3 is followed by a gas pump 19, which supplies the gas for its intended use, a bypass line 4 connecting to the actual gas line 20, which does not condense a return Residual gas in the interior of the inner furnace 9 allows.
  • a material input funnel 11 which feeds the material to a feed pipe 21, in which, in the exemplary embodiment shown, a piston-like material slide 12 is arranged, which is driven by an eccentric 22.
  • the material pusher 12 By means of the material pusher 12, the material which has been fed in is compressed into a plug of material 14 which at the same time ensures gas-tight closure of the material input 5 with respect to the outside atmosphere.
  • the material can also be compacted by a screw instead of a material pusher 12.
  • the metered discharge of the material compacted here can take place via a corresponding conveying device 15.
  • the material to be converted dosed in this way is applied to the conveyor belt 2 in a layer thickness of approximately 8 cm and conveyed through the inner furnace 9.
  • the material is converted into gas on the one hand and solid on the other, this solid being present as coal and being released into a solid bunker 16.
  • the solids hopper 16 is equipped with a screw conveyor 17 which is driven, for example, by the drive 23.
  • Heating the interior oven follows in the illustrated embodiment via a central burner heater 10, the hot gases of which are conducted via the individual feed lines 24 into the space between the insulating furnace jacket 8 and the inner furnace 9.
  • individual burners can also be provided, which can be arranged not only in the lower region of the furnace, but also on the end faces of the furnace.
  • the arrangement of several conveyor belts within the converting furnace 1 has the advantage that mutual heating and gradual heating takes place, in particular when the individual conveyor belts discharge the material they dispense in a stepwise manner onto the conveyor belt below or above.
  • the uncondensed residual gas is returned to the interior of the furnace 1 through the bypass line 4, an excess discharge line being connected to the gas line 20.
  • the main part of the gases is recycled in order to enable an oxygen-free conversion within the furnace 1.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Treatment Of Sludge (AREA)
  • Drying Of Solid Materials (AREA)
EP89102629A 1988-02-20 1989-02-16 Installation pour opérer un procédé de conversion à basse température Withdrawn EP0330070A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3805302 1988-02-20
DE19883805302 DE3805302A1 (de) 1988-02-20 1988-02-20 Anlage zum betreiben eines niedertemperatur-konvertierungsverfahrens

Publications (1)

Publication Number Publication Date
EP0330070A1 true EP0330070A1 (fr) 1989-08-30

Family

ID=6347790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102629A Withdrawn EP0330070A1 (fr) 1988-02-20 1989-02-16 Installation pour opérer un procédé de conversion à basse température

Country Status (2)

Country Link
EP (1) EP0330070A1 (fr)
DE (1) DE3805302A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994010507A1 (fr) * 1992-10-28 1994-05-11 Alf Johansson Procede de recuperation en continu de materiau tel que le caoutchouc et installation d'exploitation de ce procede
DE102005005859B3 (de) * 2005-02-09 2006-09-28 Peter Oehler Verfahren und Vorrichtung zur thermischen Behandlung von Biomasse
CN103755110A (zh) * 2014-01-02 2014-04-30 芜湖华烨工业用布有限公司 三段式污泥处理用传送装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038152A (en) * 1975-04-11 1977-07-26 Wallace-Atkins Oil Corporation Process and apparatus for the destructive distillation of waste material
EP0052334A2 (fr) * 1980-11-14 1982-05-26 Ernst Prof. Dr. Bayer Procédé de préparation de combustibles solides, liquides et gazeux à partir de matériaux organiques
DE3234017A1 (de) * 1982-09-14 1984-03-15 Nukem Gmbh, 6450 Hanau Durchlaufofen zur veraschung fester organischer substanzen
EP0234087A2 (fr) * 1986-02-20 1987-09-02 Bradford H Jones Procédé et dispositif pour le liage, l'encapsulage, la stabilisation et la détoxification de métaux lourds contenus dans des boues, des terres, des cendres et matériaux similaires

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864258A (en) * 1973-03-26 1975-02-04 Rsc Ind Inc Apparatus for treating sewage
GB1597517A (en) * 1977-01-07 1981-09-09 Arcalon Gen Petroleum Process and apparatus for the pyrolysis of refuse
DE3015290A1 (de) * 1980-04-21 1981-10-29 Werner & Pfleiderer, 7000 Stuttgart Verfahren und anlage zum veraschen von klaerschlamm
DE3221495A1 (de) * 1982-06-07 1983-12-08 Linde Ag, 6200 Wiesbaden Verfahren und vorrichtung zur konvertierung von klaerschlamm in oel und kohle
CA1225062A (fr) * 1983-09-13 1987-08-04 Trevor R. Bridle Appareil et methode pour la transformation des boues
DE3513541C3 (de) * 1985-04-16 1996-08-14 Hanf Carl Elino Ind Ofenbau Verfahren und Anlage zur thermischen Behandlung von organischen Schlämmen
DE3718133A1 (de) * 1986-07-23 1988-02-04 Werner & Pfleiderer Verfahren zum konvertieren von klaerschlamm-filterkuchen durch pyrolyse zu oel, gas und koks und anlage zur durchfuehrung des verfahrens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038152A (en) * 1975-04-11 1977-07-26 Wallace-Atkins Oil Corporation Process and apparatus for the destructive distillation of waste material
EP0052334A2 (fr) * 1980-11-14 1982-05-26 Ernst Prof. Dr. Bayer Procédé de préparation de combustibles solides, liquides et gazeux à partir de matériaux organiques
DE3234017A1 (de) * 1982-09-14 1984-03-15 Nukem Gmbh, 6450 Hanau Durchlaufofen zur veraschung fester organischer substanzen
EP0234087A2 (fr) * 1986-02-20 1987-09-02 Bradford H Jones Procédé et dispositif pour le liage, l'encapsulage, la stabilisation et la détoxification de métaux lourds contenus dans des boues, des terres, des cendres et matériaux similaires

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994010507A1 (fr) * 1992-10-28 1994-05-11 Alf Johansson Procede de recuperation en continu de materiau tel que le caoutchouc et installation d'exploitation de ce procede
DE102005005859B3 (de) * 2005-02-09 2006-09-28 Peter Oehler Verfahren und Vorrichtung zur thermischen Behandlung von Biomasse
CN103755110A (zh) * 2014-01-02 2014-04-30 芜湖华烨工业用布有限公司 三段式污泥处理用传送装置

Also Published As

Publication number Publication date
DE3805302A1 (de) 1989-08-31

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