EP2616530A2 - Procédé et dispositif pour produire un combustible solide à partir de biomasse - Google Patents

Procédé et dispositif pour produire un combustible solide à partir de biomasse

Info

Publication number
EP2616530A2
EP2616530A2 EP11813526.8A EP11813526A EP2616530A2 EP 2616530 A2 EP2616530 A2 EP 2616530A2 EP 11813526 A EP11813526 A EP 11813526A EP 2616530 A2 EP2616530 A2 EP 2616530A2
Authority
EP
European Patent Office
Prior art keywords
biogas
plant
heating
heating device
fermentation residues
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Withdrawn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
EP11813526.8A
Other languages
German (de)
English (en)
Inventor
Erich SCHÜRMANN
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 EP2616530A2 publication Critical patent/EP2616530A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • C10L5/447—Carbonized vegetable substances, e.g. charcoal, or produced by hydrothermal carbonization of biomass
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/08—Treating solid fuels to improve their combustion by heat treatments, e.g. calcining
    • C10L9/083—Torrefaction
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/06—Treatment of sludge; Devices therefor by oxidation
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Definitions

  • the invention relates to a method and an apparatus for producing a solid fuel from biomass.
  • the digestate should be converted into a valuable fuel.
  • a continuous operation, a simple structure and a high profitability are in the foreground.
  • Modern biogas plants with a combined heat and power plant to generate electricity are increasingly equipped or retrofitted with a drying system for the resulting fermentation residues.
  • the fermentation residues are dried with a TS content of about 5 to 10% to a TS content of about 85% using the waste heat of the combined heat and power plant.
  • the dried fermentation residue then has, depending on the type of dryer, a bulk density of 150 to 350 kg / m 3 , which can be increased by a downstream pelleting to about 650 kg / m 3 .
  • the fermentation residues can be labeled as fertilizer and have a fertilizer value of approx. 20, - € / t.
  • the digestate can only be used to a limited extent.
  • a correspondingly prepared and pelleted fermentation residue would be significantly more valuable at about 200 € / t. This economic potential is to be realized with the device according to the invention.
  • a method for producing fuel in a biogas plant is described in DE 10 2008 015 609 A1.
  • the fermentation residue obtained in the process is separated into a liquid fraction and a solid fraction.
  • the solid fraction is suitable after drying as fuel.
  • WO 2005/056723 A1 describes a method and a device for torrefaction of an organic raw material in order to obtain a fuel.
  • the biogas plant is fed biomass.
  • biogas is produced from the biomass, resulting in fermentation residues.
  • At least part of the digestate is fed from the biogas plant to the reactor space of a torrefaction device.
  • the fermentation residues are heated under exclusion of air and thereby torrefiziert, with a solid fuel.
  • At least part of the fermentation residues of the biogas plant is first fed to a drying plant and then passes from the drying to the reactor space of the Torrefiz istsvorraum.
  • Torrefication is a pyrolysis process with a temperature limited to, for example, about 300 ° C.
  • volatile components escape with a total of only low calorific values, with the dried fermentation residues resulting in a reduction in mass of 10 to 25%, leading to a significant increase in the calorific value of about 4 kWh / kg to 6 kWh / kg.
  • the TS content increases from 85% to approx. 95%.
  • the high temperature level of the exhaust gases of the engine is not used directly for the digestate drying, but only indirectly for heating the dry ambient air according to the current state of the art.
  • the device for Torrefizierung can be heated with the exhaust gas of the engine.
  • the energy required for Torrefiz réelle the resulting digestate of a biogas plant at about 300 ° C is measured in terms of the total heat supply of the combined heat and power plant very low.
  • the device for torrefaction of the dried fermentation residues is e.g. equipped with a double jacket, which is flowed through by the exhaust gases of the internal combustion engine of the cogeneration plant.
  • the reactor of the Torrefiz istsvorraum is in this case with the exhaust gas of the internal combustion engine on e.g. heated about 300 ° C.
  • the hot, volatile outgassings that arise during the Torrefiztechnik from the digestate are fed to the digestate dryer to assist with the energy of the exhaust gases from Torrefiz réelle the dryer.
  • the already existing exhaust air cleaning the digestate drying e.g. also used for the volatile outgassing of torrefaction.
  • Object of the present invention it was also to create a biogas plant with combined heat and power plant, their efficiency is significantly increased.
  • a biogas plant with a connected combined heat and power plant a higher quality fuel is to be produced from the dried fermentation residues of the biogas plant.
  • FIG. 2 shows a schematic sectional view of a first embodiment of the Torrefiz istsvortechnisch the system of FIG. 1,
  • Fig. 3 is a schematic sectional view of a second embodiment of the Torrefiz istsvortechnisch the system of FIG. 2.
  • the inventive device is in total with the
  • FIG. 1 shows an embodiment of the device according to the invention
  • a biogas plant or a biogas generator 1 1 a combined heat and power plant 12, a drying apparatus 13 for dewatering and drying of the digestate and a Torrefiz istsvorraum 14 is shown.
  • the fermentation residues, which are produced during the biogas production in the biogas generator 1 1, are fed by means of a line 17 to the drying apparatus 13 and dried.
  • the biogas generator 11 has a filling device 15 for the biomass, a gas line 16 leading to the combined heat and power plant 12, a fermentation residue line 17 to the drying apparatus 13 and a flow line 18th and a return line 19 for hot water between the combined heat and power plant 12 and the biogas generator 1 1 for heating the biogas generator 11 and between the combined heat and power plant 12 and the drying apparatus 13 for heating the drying apparatus thirteenth
  • the block heating plant 12 comprises a gas engine 20 and a generator 21 and has an exhaust pipe 22 which is connected to a heating jacket 23 of the Torrefiz michssensvorraum 14.
  • the heating jacket 23 is connected via a line 32 to the drying apparatus 13.
  • the Torrefiz michmaschinesvortechnisch 14 is heated indirectly with the exhaust gases of the gas engine 20.
  • the heating of the fermentation residues takes place under exclusion of air.
  • the volatile products of Torrefiztechnik be supplied via a line 32 to the drying apparatus 13 in order to use the heat energy and the compulsory integrated in the drying apparatus 13 gas scrubbing system.
  • the torrefaction device 14 is e.g. formed as a screw reactor and in this case comprises a tube housing 25 and an internal screw conveyor 26 with a motor drive, not shown.
  • the Torrefizleitersvoriques 14 has 5 pieces connection openings, the exhaust gas inlet 27, the exhaust outlet 28, the fermentation inlet 29, the fermentation residue outlet 30 and the outlet 31 for the volatile products of Torrefiztechnik.
  • the Torrefiz istsvortechnik 14 is preferably constructed as a screw reactor and consists of a double-walled tube housing 25 with a rotatable screw conveyor 26 with a drive motor 33.
  • the screw space 34 is, for example, only partially filled with material to achieve a certain mixing effect.
  • the speed of the screw conveyor 26 determines the digestate throughput and the residence time of the material in Torrefiz réellesvortechnik 14.
  • the required residence time is for example in the range of several minutes.
  • the tubular housing 25 is formed as a double jacket 35 and serves as a heat exchanger for heating the device with the exhaust gases of the internal combustion engine.
  • the double jacket 35 has an exhaust gas inlet 27 and an exhaust gas outlet 28 for the exhaust gases of the gas engine 20 of the combined heat and power plant 12.
  • the screw space 34 is gas-tight shut off and has at least three
  • the closable opening for the fermentation residue inlet 29 can be realized with a rotary valve 36, with a double flap l o or with a hose valve.
  • the closable opening at the fermentation residue outlet 30 may be a rotary valve 37 or a double flap.
  • the volatile exhaust gases resulting from the Torrefizierung be either the exhaust gas stream of the gas engine 20 or via the line 32 the
  • the Torrefiz istsvortechnik 14 includes a tube housing 25th
  • the screw space 34 should preferably be only partially filled with material in order to achieve a certain mixing effect.
  • the speed of the screw determines the digestate throughput and the residence time of the material in the torrefaction device.
  • the required residence time is in the range of
  • the tubular housing 25 comprises double jackets, which serve as heat exchangers for the heating and for the subsequent cooling of the fermentation residues.
  • the first double jacket 39 in the direction of flow serves as a heat exchanger for heating the device with the exhaust gases of the internal combustion engine and has an exhaust inlet 41 and an exhaust outlet 42 for the engine exhaust gases of the cogeneration plant 12.
  • the other double jacket 40 serves to cool the torrequel faced fermentation residues and is of a cooling medium , preferably flows through the engine cooling water and has a coolant inlet 43 and a coolant outlet 44.
  • the screw space 34 is gas-tight shut off and has at least three
  • the closable opening for the fermentation entry 45 can with a rotary valve 47, with a double flap or with a hose valve will be realized.
  • the closable opening on the material discharge 46 may be a rotary valve 48 or a double flap.
  • the volatile exhaust gases resulting from the Torrefizierung be either a combustion system, the gas engine 20 or the drying apparatus 13 for the wet fermentation residues of the biogas plant 1 1 supplied.
  • the exhaust gases are e.g. the drying apparatus 13 for the digestate, e.g. supplied with a blower 49.
  • the method can also be applied to other woody biomasses, if according to the invention the exhaust gases of an internal combustion engine are used.
  • the first provided for heating double jacket 39 a first tube and the second provided for cooling double jacket 40 may be associated with a second tube, wherein the tubes are interconnected so that the material of the first Pipe can flow into the second pipe.
  • the first tube and the second tube may each have a screw conveyor 26.
  • the Torrefiz istsvornchtung 14 may include, for example, two series-connected screw reactor. The first is z. B. for heating and the second provided for cooling.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

L'invention concerne entre autres un dispositif pour produire un combustible solide à partir de biomasse, comprenant une installation de biogaz (11) servant à générer des résidus de digestion et du biogaz, ainsi qu'une installation de séchage (13) située en aval de l'installation de biogaz (11) dans la direction d'écoulement de la matière, qui est conçue pour sécher les résidus de digestion de l'installation de biogaz (11). Cette invention est caractérisée en ce qu'un dispositif de torréfaction (14) est disposé en aval de l'installation de biogaz (11) dans la direction d'écoulement de la matière.
EP11813526.8A 2010-09-17 2011-09-19 Procédé et dispositif pour produire un combustible solide à partir de biomasse Withdrawn EP2616530A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010045612A DE102010045612A1 (de) 2010-09-17 2010-09-17 Verfahren und Vorrichtung zur Torrefizierung von Gärresten in Biogasanlagen
PCT/DE2011/001738 WO2012048677A2 (fr) 2010-09-17 2011-09-19 Procédé et dispositif pour produire un combustible solide à partir de biomasse

Publications (1)

Publication Number Publication Date
EP2616530A2 true EP2616530A2 (fr) 2013-07-24

Family

ID=45531699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11813526.8A Withdrawn EP2616530A2 (fr) 2010-09-17 2011-09-19 Procédé et dispositif pour produire un combustible solide à partir de biomasse

Country Status (3)

Country Link
EP (1) EP2616530A2 (fr)
DE (1) DE102010045612A1 (fr)
WO (1) WO2012048677A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11760630B2 (en) 2021-04-15 2023-09-19 Iogen Corporation Process and system for producing low carbon intensity renewable hydrogen
US11807530B2 (en) 2022-04-11 2023-11-07 Iogen Corporation Method for making low carbon intensity hydrogen
US11946001B2 (en) 2021-04-22 2024-04-02 Iogen Corporation Process and system for producing fuel
US12264068B2 (en) 2023-04-04 2025-04-01 Iogen Corporation Method for making low carbon intensity hydrogen

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9206368B2 (en) 2011-04-18 2015-12-08 Hm3 Energy, Inc. System and process for producing torrefied biomass using a mass flow reactor
DE102012013132A1 (de) * 2012-07-03 2014-01-09 Rwe Innogy Gmbh Verfahren zur Torrefizierung von Biomasse
US9631156B2 (en) * 2013-12-03 2017-04-25 Clean Electricity Generation Uk Ltd Torrefaction/gassification system
CN105018123B (zh) * 2014-04-30 2017-12-19 代建军 一种提高生物质受热均匀性和热效率的烘焙方法和系统
US11124724B2 (en) 2018-12-05 2021-09-21 Hm3 Energy, Inc. Method for producing a water-resistant, compressed biomass product
DE102019117573A1 (de) * 2019-06-28 2020-12-31 Lmengineering Gmbh Verfahren zur Herstellung thermisch modifizierter Cellulose- und/oder Hemicellulose-haltiger Biomaterialien und deren Verwendung

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NL1025027C2 (nl) * 2003-12-15 2005-06-21 Stichting Energie Werkwijze en stelsel voor de productie van vaste stoffen uit grondstoffen.
EP2722382A3 (fr) * 2006-06-14 2014-05-07 Torr-Coal Technology B.V. Procédé de préparation de combustibles solides par torréfaction, combustibles solides ainsi obtenus et leur utilisation
DE102008015609A1 (de) * 2008-03-26 2009-10-01 Markus Dallinger Biogasanlage und Verfahren zur Erzeugung von Biogas
BRPI0911367B1 (pt) * 2008-04-03 2020-01-07 North Carolina State University Dispositivo e processo de torrefação autotérmico de biomassa, método para aumentar a efetividade de custo no uso da mesma como combustível e processo para produzir péletes de biomassa torrada
DE102008047884A1 (de) * 2008-09-18 2010-04-15 Peter Wieczorek Heiz-/Kühleinrichtung für ein Reaktorrohr
DE102008056739A1 (de) * 2008-11-11 2010-05-12 Christian Wenner Verfahren und Vorrichtung zur Trocknung
DE202010000548U1 (de) * 2009-11-12 2010-07-15 Temminghoff, Gerhard Trocknungsvorrichtung für loses Fördergut

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11760630B2 (en) 2021-04-15 2023-09-19 Iogen Corporation Process and system for producing low carbon intensity renewable hydrogen
US11946001B2 (en) 2021-04-22 2024-04-02 Iogen Corporation Process and system for producing fuel
US12359134B2 (en) 2021-04-22 2025-07-15 Iogen Corporation Process and system for producing product
US11807530B2 (en) 2022-04-11 2023-11-07 Iogen Corporation Method for making low carbon intensity hydrogen
US12264068B2 (en) 2023-04-04 2025-04-01 Iogen Corporation Method for making low carbon intensity hydrogen

Also Published As

Publication number Publication date
WO2012048677A2 (fr) 2012-04-19
DE102010045612A1 (de) 2012-03-22
WO2012048677A3 (fr) 2012-06-14

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