EP0257019A2 - Réacteur de gazéification pour la fabrication de gaz combustibles à partir de déchets - Google Patents

Réacteur de gazéification pour la fabrication de gaz combustibles à partir de déchets Download PDF

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Publication number
EP0257019A2
EP0257019A2 EP87890192A EP87890192A EP0257019A2 EP 0257019 A2 EP0257019 A2 EP 0257019A2 EP 87890192 A EP87890192 A EP 87890192A EP 87890192 A EP87890192 A EP 87890192A EP 0257019 A2 EP0257019 A2 EP 0257019A2
Authority
EP
European Patent Office
Prior art keywords
gasification reactor
feed
gasification
gases
waste
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Withdrawn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
EP87890192A
Other languages
German (de)
English (en)
Other versions
EP0257019A3 (fr
Inventor
Reinhart Dipl.-Ing. Hanke
Walter Dipl.-Ing.Dr. Lugscheider
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.)
Voestalpine AG
Original Assignee
Voestalpine 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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0257019A2 publication Critical patent/EP0257019A2/fr
Publication of EP0257019A3 publication Critical patent/EP0257019A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C10J3/34—Grates; Mechanical ash-removing devices
    • C10J3/36—Fixed grates
    • 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
    • C10K1/20—Purifying combustible gases containing carbon monoxide by treating with solids; Regenerating spent purifying masses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F23G5/0276—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using direct heating
    • 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
    • C10J2300/1223—Heating the gasifier by burners

Definitions

  • the invention relates to a gasification reactor for the production of combustible gases from wastes, in which the wastes or waste fuels are supplied at one end of the feed and are charged with flames and / or flame gases from a furnace using additional fuels at a distance from the end of the feed in a combustion zone the gases formed are withdrawn from a gasification zone located between the feed end and the combustion zone.
  • Gasification reactors of the type mentioned at the outset can be used in particular for the production of combustible gases from waste which is not directly suitable for incineration.
  • the use of high-temperature gasification reactors is not readily economical for various waste materials, in particular for pre-dried sewage sludge, fuel from waste or plastic waste.
  • the invention now aims to provide a gasification reactor of the type mentioned, in which also relatively moist Waste materials can be converted economically to gases accessible for combustion, and in which flue gases from an energy generation plant can be used sensibly.
  • the gasification reactor according to the invention essentially consists in that a flue gas line is connected at the end of the task and to the combustion zone of the gasifier, via which flue gases a separate combustion chamber can be fed to the gasification reactor and that the flue gas supply is dependent on temperature measurement values, in particular a predetermined temperature profile the length of the carburetor is adjustable.
  • the return of flue gases via a flue gas line also has the advantage that a medium-temperature gasification process can be carried out particularly economically and in a manner adapted to the respective starting products within such a gasification reactor.
  • a medium-temperature gasification process can be carried out particularly economically and in a manner adapted to the respective starting products within such a gasification reactor.
  • the temperature profile and thus the position of the gasification zone in the gasification reactor can be influenced.
  • the gasification environment can be regulated accordingly by recirculating flue gases and adjusted more or less oxidizing or reducing.
  • the simultaneous return of flue gases at the end of the feed and to the combustion zone leads to Fuel preheating and drying through direct exposure to flue gas and for setting the desired temperature profile and the CO2 supply in the carburetor.
  • the gasification zone in such a gasification reactor can thus be set to the level of the device-provided discharge openings for the product gas, as a result of which a high gas yield can be achieved even with different types of waste or waste
  • the design according to the invention is such that the flue gases are fed to the gasification reactor under the pressure of a suction fan, which creates the possibility of feeding the flue gas into any zones of the gasification reactor and the desired displacement of the gasification zone to the level of the exhaust lines for the product gas of the gasification reactor.
  • the combustible gas drawn off from the gasification zone which usually has a lower calorific value than primary fuels, such as are used as additional fuels and is therefore referred to as lean gas, can also be drawn off via an induced draft fan. If such an induced draft fan is used for the extraction of the lean gases, it is essential to move the gasification zone as precisely as possible into the plane of the extraction openings in order to be able to withdraw product gas or lean gas that has been converted as far as possible.
  • the design is such that the gasification reactor is designed as a shaft gasifier, and that the exhaust line for the combustible gases is connected below the feed end and above the combustion zone, so that a particularly simple adjustment of the height of the gasification zone can be achieved.
  • a separate throttle element is advantageously switched on both in the flue gas feed line for the end of the task and in the flue gas feed line for the combustion zone, these throttle elements and thus the flue gas feed depending on a predetermined temperature profile over the length of the gasifier are adjustable.
  • the discharge line for combustible gases can advantageously be connected to the carburetor via a chimney, which connects to the carburetor via boundary walls immersed in the waste or waste fuels that have been added. In this way, indirect preheating of the waste or waste fuels can be achieved, since the hot product gases or weak gases can be drawn off adjacent to the task over the chimney.
  • a particularly good preheating and thus predrying of the waste given can be achieved in that the flue for the combustible gases surrounds the gasification reactor concentrically.
  • Such a structural design of the fume hood also allows the gas conditioning desired for the subsequent combustion in a combustion chamber to be accommodated in a space-saving manner within the fume hood in a simple manner.
  • the design according to the invention can advantageously be such that at least two feeding devices, in particular a screw conveyor, conveyor belts and / or a feed opening for lumpy waste or waste fuels, are provided.
  • a device different wastes or waste fuels of different consistency and Feed the composition simultaneously and in adjustable proportions, so that the gasification behavior can be further optimized.
  • the design is such that at least one feed device is designed for essentially horizontal infeed of waste or waste fuels and that additional feed devices run parallel to the axis of the first feed device or cross or intersect with it and that the burners on the opposite of a feed device Side of the gasification reactor are arranged.
  • the gasification reactor is designed as an essentially horizontal chamber, to which different materials can be supplied at one side end via separate conveying devices, in which case lumpy and loose material can also be applied from above under the action of gravity.
  • the transport takes place in the direction of the gasification zone and a feed device, in particular a screw conveyor or a conveyor belt, on the opposite side the burners for the additional fuels are provided on the opposite side to the horizontal chamber.
  • the lean gas or gasifier product gas is in turn drawn off at a point between burners and feed devices, it being possible for a chimney to be provided for this.
  • FIG. 1 shows a schematic longitudinal section through a reactor according to the invention
  • FIG. 2 and FIG. 3 modified designs for feeding loose, lumpy wastes or waste fuels
  • FIG. 4 shows a design according to FIG. 1 with a feed device which can be used, for example, for dewatered sewage sludge
  • Fig. 5 shows a modified embodiment with the chimney concentrically surrounding the reactor
  • Fig. 6 shows a training for the Loading with fuel in bale form
  • Fig. 7 shows a modified design of the device according to Fig. 6 for the additional task of lumpy fuel
  • Fig. 8 shows a further modified design corresponding to Figs. 6 and 7 with an additional feed device for fuel, for example in the form of Sewage sludge.
  • FIG. 1 shows a medium-temperature gasification reactor 1, at the end of which 2, as schematically indicated by the arrow 3, fuel can be added.
  • a discharge opening for ash is provided, which is indicated schematically by the arrow 5.
  • Additional fuel is supplied via a line 6 and combustion air via a line 7 near the foot end 4 of the gasification reactor, a combustion zone 8 being formed in the foot of the gasification reactor.
  • Gas or oil are primarily considered as additional fuels.
  • the gasification reactor 1 is filled with waste or waste fuels and, after being exposed to the flames or flame gases, the burners in the combustion zone 8 are subjected to gasification.
  • the gasification zone is indicated by 9 in the middle area of the gasification reactor 1.
  • the top zone of the gasifier represents a drying zone 10 for the material fed in. In the level of the gasification zone 9, derivatives 11 are provided for the product gas or lean gas.
  • Flue gas return lines 12 and 13 are connected near the head end 2 and the foot end 4 of the gasification reactor.
  • the supply of the flue gas via line 13 in the combustion zone primarily affects the temperature profile and changes the CO2 supply for gasification, whereas the supply of flue gas via line 12 in the drying zone 10 causes an intensive predrying of the material to be gasified.
  • throttle valves 14 and 15 are switched on, which influence the quantity of flue gas supplied.
  • the regulation of these throttle valves 14 and 15 takes place by evaluating measured values of temperature sensors schematically indicated by 16, the correct setting of the gasification zone on the level of the exhaust lines 11 for the lean gas being able to be checked by measuring the lean gas or product gas composition.
  • the gasification reactor 1 is shaft-shaped and has a dividing wall 17 for delimiting an exhaust stack 18, from which the lean gas is drawn off via the line 11.
  • the gasification reactor 1 according to FIG. 2 can be filled with loose or lumpy fuels or waste fuels or garbage, a combustion zone 8 with burners being provided at the foot end, the flames of which are indicated schematically at 19.
  • An ash collecting chamber 20 is provided below the combustion chamber, from which the ash passing through grate bars 21 can be discharged.
  • the gasification zone 9 is located just below the lower edge 22 of the vertical partition 17 of the chimney 18, so that the product gas or lean gas can exit directly into the chimney 18.
  • the lean gas rising via the partition 17 partially indirectly preheats the feed in the drying zone 10, it being possible for gas conditioning to be provided within the chimney 18, for example in the form of a bed of briquettes, in particular coke, this gas conditioning being indicated by 23.
  • the combustion chamber with the flames 19 is separated from the combustion zone 8 by grate bars 24.
  • the grate bars 21 above the ash collecting chamber 20 are provided at the foot end of the feed, and extend into the area of the Gasification zone 9, the lean gas being squeezed out into the adjacent flue 18 by the pressure of the recirculated flue gases via lines 12 and 13.
  • a suction air blower can be connected to the lean gas discharge line 11.
  • the optional gas conditioning is again indicated at 23 in FIG. 3.
  • a screw conveyor 25 is provided near the head end 2 of the reactor 1 for feeding dewatered sewage sludge or loose fuel.
  • 4 essentially corresponds to the configuration according to FIG. 3, the connection of the flue gas line 12 at the head end of the reactor being put in place of the task for waste fuels in the configuration according to FIG.
  • the exhaust chimney 18 concentrically surrounds the shaft-shaped gasification reactor.
  • the product gases withdrawn from the gasification zone 9 thus coat the outer walls of the gasification reactor 1 completely, so that the preheated material is preheated indirectly.
  • an additional concentric combustion chamber 26 is provided and a plurality of burners can be supplied with fuels or combustion air via the feed lines 6 and 7.
  • combustion air can also be introduced into the ash collecting chamber 20, which can get into the combustion zone 8 between the grate bars 21.
  • the flue gas is in turn introduced via lines 12 and 13 both at the head end and into the combustion zone, so that the desired temperature profile can be set.
  • the 6 has a push-in device 27 for fuel in the form of a bale connected to the side of the gasification reactor 1.
  • the supply of Additional fuels or combustion air via the lines 6 and 7 take place at the opposite end and the combustion chamber 28 formed in this area has a vaulted shape in order to promote the heat transfer by radiation.
  • the lean gas outlet is in turn arranged between combustion chamber 28 and task 27 and is designated by line 11.
  • flue gas is introduced via line 13 into the ash chamber 20 and thus into the combustion zone, the flue gas supply near the end of the task being additionally ensured through line 12.
  • the fuel is supplied in the form of a bale, a bale of this type being designated, for example, by 29.
  • the impact can be discontinuous and controlled according to the burnup or the gasification.
  • the configuration according to FIG. 7 is suitable.
  • the additional feed opening 30 for the feed of such loose, lumpy waste fuel or dewatered sewage sludge is adjacent to the injection device 27 for fuel in the form of a bale, and the lean gas is extracted between the combustion chamber 28 and the preceding feed opening.
  • the preheating zone 10 is located adjacent to the feed openings and in this case 2 flue gas return lines 12 are arranged after the respective feed ends.
  • the additional introduction of flue gas into the combustion zone 8 takes place in turn by introducing flue gas via the line 13 into the ash chamber 20, the flue gas being able to pass between the grate bars 21 and entering the combustion zone 8.
  • a conveyor device which is formed by a screw 25, can be arranged above the feed for fuel in bale form, in order to introduce, for example, pre-dewatered sewage sludge.
  • the flue gas supply to the ends of the feed takes place here via the lines 12, the flue gas return line 13 in turn opening into the ash collecting chamber 20 and reaching the combustion zone 8 between the grate bars 21.
  • the gasification zone 9 is in turn arranged between the combustion zone 8 and the preheating zone 10.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
  • Incineration Of Waste (AREA)
EP87890192A 1986-08-14 1987-08-14 Réacteur de gazéification pour la fabrication de gaz combustibles à partir de déchets Withdrawn EP0257019A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0220386A AT390961B (de) 1986-08-14 1986-08-14 Vergasungsreaktor fuer die herstellung brennbarer gase aus abfaellen
AT2203/86 1986-08-14

Publications (2)

Publication Number Publication Date
EP0257019A2 true EP0257019A2 (fr) 1988-02-24
EP0257019A3 EP0257019A3 (fr) 1988-10-05

Family

ID=3529913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87890192A Withdrawn EP0257019A3 (fr) 1986-08-14 1987-08-14 Réacteur de gazéification pour la fabrication de gaz combustibles à partir de déchets

Country Status (3)

Country Link
EP (1) EP0257019A3 (fr)
AT (1) AT390961B (fr)
NO (1) NO873393L (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004354A1 (fr) * 1987-11-06 1989-05-18 Dansk Termo Industri A/S Procede et appareil de production d'un gaz a partir de dechets biologiques finement broyes
FR2721690A1 (fr) * 1994-06-23 1995-12-29 Envirotec Group Ltd Procédé et dispositif pour traiter à chaud des déchets hospitaliers et analogues.
EP0971017A2 (fr) * 1998-07-09 2000-01-12 KRANTZ-TKT GmbH Procédé et appareil pour la gazéification d'un combustible solide sous forme de morceaux
WO2001061246A1 (fr) * 2000-02-17 2001-08-23 Maschinen- Und Stahlbau Gmbh Roland Grüssing Reacteur et procede de gazeification et/ou de fusion de matieres
WO2004042278A1 (fr) * 2002-11-08 2004-05-21 Ekogastek Procede pour traiter les materiaux contenant du carbone libre ou chimiquement lie
US11286436B2 (en) 2019-02-04 2022-03-29 Eastman Chemical Company Feed location for gasification of plastics and solid fossil fuels
US11447576B2 (en) 2019-02-04 2022-09-20 Eastman Chemical Company Cellulose ester compositions derived from recycled plastic content syngas
EP4092320A1 (fr) * 2021-05-19 2022-11-23 Daniel Gaudreault Appareil et procédé pour chaudière à balles
US11939406B2 (en) 2019-03-29 2024-03-26 Eastman Chemical Company Polymers, articles, and chemicals made from densified textile derived syngas

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747571A1 (de) * 1976-10-26 1978-04-27 Union Steel South Africa Verfahren zum kontinuierlichen erzeugen eines reduktionsgases und vorrichtung zum durchfuehren des verfahrens
AT379618B (de) * 1983-11-14 1986-02-10 Voest Alpine Ag Verfahren zur aufarbeitung von schwermetallhaeltigen rueckstaenden der chemischen industrie

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE243810C (fr) *
DE238554C (fr) *
DE419528C (de) * 1922-11-21 1925-10-05 Waldemar Jaretzky Kraftgaserzeuger, insbesondere fuer Fahrzeuge
DE972200C (de) * 1949-01-01 1959-06-04 Daimler Benz Ag Gasgeneratoranlage fuer Kraftfahrzeuge
DE909979C (de) * 1950-10-27 1954-04-26 Kloeckner Humboldt Deutz Ag Verfahren zur aufsteigenden Vergasung bituminoeser Brennstoffe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747571A1 (de) * 1976-10-26 1978-04-27 Union Steel South Africa Verfahren zum kontinuierlichen erzeugen eines reduktionsgases und vorrichtung zum durchfuehren des verfahrens
AT379618B (de) * 1983-11-14 1986-02-10 Voest Alpine Ag Verfahren zur aufarbeitung von schwermetallhaeltigen rueckstaenden der chemischen industrie

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004354A1 (fr) * 1987-11-06 1989-05-18 Dansk Termo Industri A/S Procede et appareil de production d'un gaz a partir de dechets biologiques finement broyes
FR2721690A1 (fr) * 1994-06-23 1995-12-29 Envirotec Group Ltd Procédé et dispositif pour traiter à chaud des déchets hospitaliers et analogues.
WO1996000266A1 (fr) * 1994-06-23 1996-01-04 Envirotec Group Limited Procede et dispositif pour traiter a chaud des dechets hospitaliers et analogues
EP0971017A2 (fr) * 1998-07-09 2000-01-12 KRANTZ-TKT GmbH Procédé et appareil pour la gazéification d'un combustible solide sous forme de morceaux
EP0971017A3 (fr) * 1998-07-09 2000-03-15 KRANTZ-TKT GmbH Procédé et appareil pour la gazéification d'un combustible solide sous forme de morceaux
KR100770889B1 (ko) * 2000-02-17 2007-10-26 마쉰넨-운트 슈탈바우 게엠베하 롤란드 그뤼싱 재료의 기화 및/또는 용융을 위한 반응기 및 방법
US6662735B2 (en) 2000-02-17 2003-12-16 Maschinen- Und Stahlbau Gmbh Reactor and method for gasifying and/or melting materials
WO2001061246A1 (fr) * 2000-02-17 2001-08-23 Maschinen- Und Stahlbau Gmbh Roland Grüssing Reacteur et procede de gazeification et/ou de fusion de matieres
CZ305021B6 (cs) * 2000-02-17 2015-04-01 Kbi International Ltd. Způsob a reaktor pro zplynování a/nebo tavení látek
WO2004042278A1 (fr) * 2002-11-08 2004-05-21 Ekogastek Procede pour traiter les materiaux contenant du carbone libre ou chimiquement lie
US11370983B2 (en) 2019-02-04 2022-06-28 Eastman Chemical Company Gasification of plastics and solid fossil fuels
US11312914B2 (en) 2019-02-04 2022-04-26 Eastman Chemical Company Gasification of plastics and solid fossil fuels to produce organic compounds
US11286436B2 (en) 2019-02-04 2022-03-29 Eastman Chemical Company Feed location for gasification of plastics and solid fossil fuels
US11447576B2 (en) 2019-02-04 2022-09-20 Eastman Chemical Company Cellulose ester compositions derived from recycled plastic content syngas
US11802251B2 (en) 2019-02-04 2023-10-31 Eastman Chemical Company Feed location for gasification of plastics and solid fossil fuels
US11939546B2 (en) 2019-02-04 2024-03-26 Eastman Chemical Company Gasification of plastics and solid fossil fuels to produce organic compounds
US11939547B2 (en) 2019-02-04 2024-03-26 Eastman Chemical Company Gasification of plastics and solid fossil fuels
US11939406B2 (en) 2019-03-29 2024-03-26 Eastman Chemical Company Polymers, articles, and chemicals made from densified textile derived syngas
EP4092320A1 (fr) * 2021-05-19 2022-11-23 Daniel Gaudreault Appareil et procédé pour chaudière à balles

Also Published As

Publication number Publication date
ATA220386A (de) 1990-01-15
NO873393D0 (no) 1987-08-12
AT390961B (de) 1990-07-25
NO873393L (no) 1988-02-15
EP0257019A3 (fr) 1988-10-05

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