WO2014060437A1 - Dispositif et procédé de séchage et de torréfaction de biomasse - Google Patents

Dispositif et procédé de séchage et de torréfaction de biomasse Download PDF

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Publication number
WO2014060437A1
WO2014060437A1 PCT/EP2013/071557 EP2013071557W WO2014060437A1 WO 2014060437 A1 WO2014060437 A1 WO 2014060437A1 EP 2013071557 W EP2013071557 W EP 2013071557W WO 2014060437 A1 WO2014060437 A1 WO 2014060437A1
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WO
WIPO (PCT)
Prior art keywords
biomass
drying
temperature
conditioning
flue gas
Prior art date
Application number
PCT/EP2013/071557
Other languages
German (de)
English (en)
Inventor
Hannes STRUBELT
Lars Bauer
Jean-Christophe Zimmermann
Original Assignee
Dieffenbacher GmbH Maschinen- und Anlagenbau
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 Dieffenbacher GmbH Maschinen- und Anlagenbau filed Critical Dieffenbacher GmbH Maschinen- und Anlagenbau
Publication of WO2014060437A1 publication Critical patent/WO2014060437A1/fr

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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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • 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
    • 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/02—Combustion or pyrolysis
    • 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/06—Heat exchange, direct or indirect
    • 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/08—Drying or removing water
    • 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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/24—Mixing, stirring of fuel components
    • 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
    • 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
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Definitions

  • the present invention relates to a device for drying
  • biomass is dried and torrefied so that it becomes more similar to the fuel coal, i. the specific calorific value increases, the tendency to absorb moisture decreases and a grinding for the
  • Dust firing requires a smaller energy input.
  • torrefied materials especially wood
  • torrefied materials have a significantly lower weight and can be transported and manipulated more cost-effective after Torrefizierung.
  • the compression torrefizierter biomass into pellets, especially for a simplified transport, is also associated with less energy.
  • the invention relates to a thermal pretreatment, called Torrefiz ist, of carbonaceous and hydrogen-containing solid fuels, which may also be present in pasty or viscous form.
  • Torrefaction is a mild thermal treatment of fuels with exclusion of oxygen or at low oxygen contents at temperatures of 220 ° C to 350 ° C.
  • the necessary residence time for a complete torrefaction of the fuel to reach is between 15 and 120 minutes. The residence time is determined by the fuel itself, the particle size of the fuel and the
  • Heat transfer characteristic of the method It is known that the biomass is dried before torrefaction.
  • Torrefication can be followed by a cooling device and / or a comminution of the biomass.
  • the potential final pelletization for easier and cheaper transportation is also a known one
  • Atmosphere takes place.
  • One skilled in the art will find common sealing solutions to keep air from the environment away from the actual process.
  • processes which are e.g. the principle of the drum dryer, the stack oven or the fluidized bed are based.
  • the heating can be done directly by hot gases or indirectly via a heated wall.
  • the inertization is carried out by flue gases, technical gases or
  • DE 10 2010 036 425 A1 discloses for this purpose an apparatus and a method for drying and torrefaction of at least one carbon-containing
  • Material flow in a multi-level oven There is a burner provided with a Outlet of the Torrefiz istszone and a heat exchanger is in communication.
  • the heat exchanger is also provided with an inlet of the
  • the amount of heat for the torrefaction is directly coupled with that for the drying.
  • EP 2 017 325 A2 relates to the production of a gaseous fuel and discloses separate devices for drying and torrefaction, a crushing plant and the connection to a burner for gasification and a heat exchanger for utilizing the waste heat of the burner in the dryer.
  • the procedure is to utilize previously unused waste heat and the energy present therein, e.g. from a power plant with
  • High-temperature areas such as gas, oil or nuclear power plants with at least one steam area or steam boiler, in particular for operating a
  • the present invention therefore has the technical object to provide a device and a method for drying and torrefaction of biomass, with the waste heat from a power plant, preferably comprising a
  • the solution for the device comprises:
  • a drying device for drying the biomass to a dried biomass
  • a mixing chamber for a conditioning device to flue gas from the steam boiler and / or from the turbine of the power plant to a
  • the solution for the process comprises the following process steps:
  • a typical power plant or power plants includes the components
  • the e-filter exemplified here is representative of the
  • biomass essentially means vegetable and / or wood-based materials, as they occur in the agricultural, forestry and forestry in a productive but also waste management terms regular.
  • torrefizierbares material should be used as biomass that can be used optimally energetically in a subsequent process not described in detail and in particular this can be pelleted for transport.
  • biomass or mixed materials For example, batches of waste or the like may be suitable for torrefaction.
  • the biomass is usually delivered with a moisture content of 30 - 100%, dried, conditioned and torrefied.
  • Conditioning is understood as meaning a drying step in which the biomass is dried to a residual moisture of 0 to 2% and preferably 0 to 0.5%. It can be adjusted to a temperature T12 of 100 to 200 ° C, preferably 150 ° C. The temperature should be kept low so that no odors or tars are released and pollute the exhaust air. Part of the exhaust air can be directed to the outside via a filter.
  • flue gas from a steam boiler and / or from a turbine is mixed in a mixing chamber and thus brought to a temperature T9 of about 200 ° C. suitable for the conditioning.
  • the required inertization is ensured by the flue gases of the power plant. Since the temperature T4 of the cold flue gas from the steam boiler for torrefaction could not be sufficient, hot flue gas with the temperature T2 is additionally coupled out in a further mixing chamber from the boiler and admixed.
  • the temperature T2 is between about 300 and 350 ° C, and the temperature T4 is between about 160 and 180 ° C.
  • the flue gas for Torrefizieren but also be generated by mixing the flue gases from the boiler and / or from the turbine. Even a possible only minimal admixture of hot gases from the combustion chamber with a temperature T1 of about 900 to 950 ° C is possible when a higher temperature than the temperature T2 between about 300 and 350 ° C is needed, such as 400 ° C.
  • the flue gas for Torrefizieren also from a
  • Air preheater of the power plant are removed or mixed.
  • the flue gases from the steam boiler are used after the steam generation with the temperature T2.
  • Air preheating in combustion chambers of energy plants or power plants is usually used to accomplish a finer adjustment of the combustion respectively the combustion temperatures above a Feuerungsrostes or a Staubberfeuerung.
  • the biomass Before conditioning, the biomass can be dried in a drying device by means of exhaust steam from the turbine and / or with the aid of flue gas from the steam boiler to a moisture content of 5 to 30%, preferably 7 to 20% and more preferably 8 to 15%.
  • Torrefication is prevented mixing of the liberated during drying water vapors from the biomass with the released during torrefaction Torr gases.
  • the separated exhaust gases can be selectively returned for further use to the
  • Torrgase together with the flue gas from Torrefiz ist with a temperature of about 160 ° C can be fed to the combustion in the power plant and used thermally.
  • the torrefied biomass Before the torrefied biomass is exposed to fresh air, it should be cooled to below 200 ° C in a cooler. Can do this
  • Flue gases from the conditioning device are used, which can be contaminated during cooling with Resttorrgasen.
  • the temperature is about 150 to 250 ° C. It can also be the exhaust steam from the turbine with the temperature T3 and / or the dryer exhaust air with the temperature T8 off the drying device can be used.
  • the temperature T3 is between about 80 and 150 ° C
  • the temperature T8 is between about 40 and 70 ° C.
  • the exhaust air from the cooling device can be supplied to the combustion. Alternatively, the exhaust air can also be supplied to the E-filter. If the exhaust air from the cooling device is dry, that is, for example, comes out of the turbine instead of from the conditioning, then the exhaust air and the mixing chamber before Torrefizleiter or directly the Torrefiztechniksvortechnisch can be supplied. In this case, the resulting low temperature level should be compensated by a higher proportion of flue gases with the temperature T2.
  • the device preferably has return lines which economically utilize the waste heat of the individual stages of the device.
  • the return lines are preferably double-walled, so that e.g. inside cooler and outwardly hotter gases.
  • the background for double-walled return lines is that in the fluid flows condensation during the
  • Fluid transport must be avoided, which occurs when the fluids cool too much. It can thus deposit tar or other substances.
  • the device may further comprise in the return line: a return line for the transport of smoke and Torrgas of Torrefiz istsvortechnisch to the combustion chamber, a return line for the transport of
  • the mixing chambers need not be independent apparatuses and devices, but can also have a technically realized function in the art
  • pelleting or gasification can follow.
  • Pelleting shows the positive effect that cold flue gases can contribute to inerting and thus to explosion safety.
  • Device may also comprise a, in particular bouncing, crushing device.
  • the invention advantageously shows that the
  • waste heat disposed lower in the energy level can be used optimally in quantity and energy level
  • Conditioning device it is also possible to condition the biomass such that uncontrolled fluctuations in the input variable
  • Biomass can be controlled to a temperature level of 200 ° C, without generating heat esters and uncontrolled exothermic reactions.
  • the conditioning can thus also be used as an introductory or
  • the mixing chambers support the control of the overall process and thus the success of Torrefizleiter by the simplified control of the process gases.
  • the mixing chamber for the conditioning device and the mixing chamber for Torrefiz michssensvorraum are spaced apart and independently operable. Also the
  • Drying device the conditioning device and / or the
  • Torrefizierungsvortechnisch may be spaced from each other and operable independently.
  • Fig. 1 shows an embodiment of a device according to the invention for
  • Fig. 2 shows another embodiment of a device according to the invention with particular emphasis on the cooling device
  • Fig. 3 shows another embodiment of a device according to the invention with particular emphasis on the mixing chambers.
  • FIG. 1 shows an apparatus according to the invention for drying, conditioning and torrefaction of biomass by utilizing the waste heat of a power plant.
  • the power plant simplifies the
  • Components combustion chamber 20, steam boiler 21, turbine 22 and E-filter 23 The device allows excellent utilization of the residual heat amounts of a typical power plant, in particular for torrefaction of biomass, which in turn can be burned in this or this power plant.
  • dashed arrows are indicated material flows, which in the respective embodiment have a lesser importance and are usually required only for safety or control technical reasons.
  • a combustion gas 1 is passed at a temperature T1 to the boiler 21.
  • the temperature T1 of the combustion gas 1 is about 950 ° C.
  • the combustion chamber 20 flue gas 10 with a temperature T10 from a
  • Cooling device 27 and / or smoke and Torrgas 6 are supplied with a temperature T6 from a Torrefizleitersvorraum 29.
  • the temperature T10 is about 150 ° C and the temperature T6 is about 160 ° C.
  • cold flue gas 4 is passed with a temperature T4 to the E-filter 23 from the boiler.
  • the temperature T4 is between about 160 and 180 ° C.
  • From the E-filter 23 is exhaust air 1 1 with a temperature T1 1 via e.g. a fireplace to the environment.
  • the cold flue gas 4 with the temperature T4 from the steam boiler 21 can alternatively or additionally be conducted as a flue gas 4 to a drying device 24 for the biomass.
  • the drying device 24 can a
  • Belt dryer, a direct or indirect drum dryer or the like, and the biomass B may be in the form of wet chips.
  • From the boiler 21 is in regular power plant operation in the rule
  • the temperature T3 is between about 80 and 150 ° C.
  • the drying device 24 takes the form of a belt dryer
  • the temperature T4 is between about 160 and 180 ° C
  • the temperature T3 is between about 80 and 150 ° C.
  • the exhaust steam 3 from the turbine 22 condenses in the
  • Drying device 24 gives the energy required for drying the biomass B to the fresh air F. After drying, the
  • Drying device 24 from its dryeroccasiont 8 with a temperature T8 to the environment and biomass B1 preferably in the form of dry chips to a conditioning device 28 from.
  • the temperature T8 is between about 40 and 70 ° C.
  • the mixed gas 9 with the desired temperature T9 for the conditioning is produced from the flue gas 2/4 from the steam boiler 21.
  • the temperature T9 is about 200 ° C.
  • Temperature T4 mixed.
  • the temperature T2 is between about 300 and 350 ° C, and the temperature T4 is between about 160 and 180 ° C.
  • the conditioning device 28 receives the dry biomass B1 from the drying device 24 and flue gas 9 at the temperature T9 from the mixing chamber 25 for conditioning.
  • the temperature T9 is about 200 ° C.
  • the conditioning device 28 delivers conditioned biomass B2 to the torrefaction device 29 and flue gas 5 at the temperature T5 to a cooling device 27.
  • the temperature T5 is about 150 to 250 ° C.
  • the flue gas 2/4 from the boiler 21 is set to the desired torrefying temperature T7 and passed to the torrefying device 29 as a torrefying gas 7 having a temperature T7 between about 300 and 350 ° C.
  • a torrefying gas 7 having a temperature T7 between about 300 and 350 ° C.
  • the temperature T2 is between about 300 and 350 ° C
  • the temperature T4 is between about 160 and 180 ° C.
  • Torrefizianssvon if necessary, the cold flue gas 4 with the temperature T4 more or less alone in the
  • Temperature T2 can then be shut off more or less. This may be necessary, for example, to prevent the exothermic process or to prevent overheating in Torrefizleitersvortechnik 29.
  • the Torrefizleitersvortechnik 29 takes the conditioned biomass B2 from the conditioning device 28 and Torrefizierungsgas 7 with the temperature T7 from the mixing chamber 26 for torrefaction.
  • the temperature T7 is between about 300 and 400 ° C. After the Torrefiz réelle gives the
  • Torrefiz istsvortechnisch 29 torrefiz biomass B3 to the cooling device 27 and smoke and Torrgas 6 with a temperature T6 to the combustion chamber 20 from.
  • the temperature T6 is about 160 ° C.
  • Temperature T6 of about 160 ° C can therefore be supplied to the combustion in the power plant and effectively thermally utilized.
  • the cooling device 27 takes the Torrequeltechnische
  • the temperature T5 is about 150-250 ° C.
  • the cooling device 27 discharges dry and cooled biomass B4 and moist flue gas at the temperature T10 to the E-filter 23.
  • the temperature T10 is about 150 ° C.
  • FIG. 2 shows an embodiment of the device according to the invention with particular emphasis on the cooling device 27. The shown
  • Cooling device 27 receives the torrefied biomass B3 from the Torrefiz istsvortechnisch 29 and instead of the flue gas 5 with the temperature T5 from the conditioning device 28 the exhaust steam 3 with the temperature T3 from the turbine 22 and / or the dry exhaust gases of the temperature T8 from an indirectly heated drying device 24th , For example, a drum dryer, on.
  • the temperature T3 is between about 80 and 150 ° C and the
  • Temperature T8 is between about 40 and 70 ° C.
  • the cooling device 27 After cooling, the cooling device 27 delivers dry and cooled biomass B4 and flue gas 10 at the temperature T10 to the combustion chamber.
  • the Temperature T10 is about 150 ° C. Since the gases from the cooling device 27 are dry, since they instead of from the conditioning device 28 from the turbine 22 or an indirect carried out drying out of the
  • Drying device 24 come, they can also be the mixing chamber 26 in front of Torrefiztechniksvortechnik 29 or directly Torrefiztechniksvortechnik 29 fed.
  • FIG. 3 shows a further embodiment of a device according to the invention
  • Temperature T2 is between about 300 and 350 ° C
  • temperature T4 is between about 160 and 180 ° C
  • temperature T3 is between about 80 and 150 ° C. If e.g. If the temperature T2 is required to be higher than the temperature T2 between about 300 and 350 ° C, the torrefying mixing chamber 26 may additionally receive the combustion gas of the temperature T1 from the combustion chamber.
  • the temperature T1 is 950 ° C.
  • the device may include: a

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Drying Of Solid Materials (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

La présente invention concerne un dispositif et un procédé de séchage et torréfaction de biomasse, en particulier en exploitant la chaleur perdue d'une centrale électrique. En ce qui concerne le dispositif, l'invention consiste en un dispositif (24) servant à sécher la biomasse (B) pour obtenir une biomasse séchée (B1) ; une chambre de mélangeage d'un dispositif de conditionnement (28) servant à mélanger du gaz de fumée provenant de la chaudière à vapeur (21) et/ou de la turbine (22) de la centrale électrique afin de former un gaz de conditionnement (9) ayant une température (T9) d'environ 200°C ; le dispositif (28) servant à conditionner la biomasse séchée (B1) pour obtenir une biomasse conditionnée (B2) ; une chambre de mélangeage (26) d'un dispositif de torréfaction (29) servant à mélanger du gaz de fumée provenant de la chaudière à vapeur (21) et/ou de la turbine (22) et/ou d'une chambre de combustion (20) de la centrale électrique afin de former un gaz de torréfaction (7) ayant une température (T7) de 300 à 400°C environ ; et le dispositif (29) servant à torréfier la biomasse conditionnée (B2) pour obtenir une biomasse torréfiée (B3).
PCT/EP2013/071557 2012-10-17 2013-10-15 Dispositif et procédé de séchage et de torréfaction de biomasse WO2014060437A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012109917.0 2012-10-17
DE102012109917.0A DE102012109917A1 (de) 2012-10-17 2012-10-17 Vorrichtung und Verfahren zur Trocknung und Torrefizierung von Biomasse

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Cited By (1)

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CN107532098A (zh) * 2015-01-23 2018-01-02 比奥恩德夫公司 用于生物质的节能烘焙的方法及系统

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FR877187A (fr) * 1941-07-22 1942-11-30 Séchoir torréfacteur pour le traitement du bois destiné à l'alimentation de gazogène
US20100242351A1 (en) * 2009-03-27 2010-09-30 Terra Green Energy, Llc System and method for preparation of solid biomass by torrefaction
WO2010128209A1 (fr) * 2009-05-08 2010-11-11 Åf-Consult Oy Procédé de traitement thermique d'une biomasse en relation avec une installation de chauffage
EP2375152A2 (fr) * 2010-04-09 2011-10-12 Fritz Egger GmbH & Co. OG Dispositif et procédé de production de gaz chaud avec chauffage intégré d'un fluide caloporteur
DE102011014029A1 (de) * 2011-03-15 2012-09-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Reaktor zur Erzeugung eines Energieträgers aus halm- oder stückgutartiger Biomasse
DE102012013132A1 (de) * 2012-07-03 2014-01-09 Rwe Innogy Gmbh Verfahren zur Torrefizierung von Biomasse

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ITTO20070438A1 (it) 2007-06-19 2008-12-20 Martini Aldo Apparato per la decomposizione di sostanze organiche vegetali e la produzione di gas combustibile per via termochimica, e relativo metodo
DE102010036425A1 (de) 2010-07-15 2012-01-19 Polysius Ag Vorrichtung und Verfahren zur Trocknung und Torrefizierung von wenigstens einem kohlenstoffhaltigen Stoffstrom in einem Etagenofen
US8198493B1 (en) 2012-01-11 2012-06-12 Earth Care Products, Inc. High energy efficiency biomass conversion process

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
FR877187A (fr) * 1941-07-22 1942-11-30 Séchoir torréfacteur pour le traitement du bois destiné à l'alimentation de gazogène
US20100242351A1 (en) * 2009-03-27 2010-09-30 Terra Green Energy, Llc System and method for preparation of solid biomass by torrefaction
WO2010128209A1 (fr) * 2009-05-08 2010-11-11 Åf-Consult Oy Procédé de traitement thermique d'une biomasse en relation avec une installation de chauffage
EP2375152A2 (fr) * 2010-04-09 2011-10-12 Fritz Egger GmbH & Co. OG Dispositif et procédé de production de gaz chaud avec chauffage intégré d'un fluide caloporteur
DE102011014029A1 (de) * 2011-03-15 2012-09-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Reaktor zur Erzeugung eines Energieträgers aus halm- oder stückgutartiger Biomasse
DE102012013132A1 (de) * 2012-07-03 2014-01-09 Rwe Innogy Gmbh Verfahren zur Torrefizierung von Biomasse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107532098A (zh) * 2015-01-23 2018-01-02 比奥恩德夫公司 用于生物质的节能烘焙的方法及系统
EP3247778A4 (fr) * 2015-01-23 2018-07-18 Bioendev AB Procédé et système de torréfaction efficace d'une biomasse
US10584296B2 (en) 2015-01-23 2020-03-10 Bioendev Ab Method and system for energy efficient torrefaction of biomass

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