WO2011123025A1 - Method and apparatus for torrefaction of biomass material - Google Patents

Method and apparatus for torrefaction of biomass material Download PDF

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Publication number
WO2011123025A1
WO2011123025A1 PCT/SE2011/050332 SE2011050332W WO2011123025A1 WO 2011123025 A1 WO2011123025 A1 WO 2011123025A1 SE 2011050332 W SE2011050332 W SE 2011050332W WO 2011123025 A1 WO2011123025 A1 WO 2011123025A1
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WO
WIPO (PCT)
Prior art keywords
biomass material
reactor
torrefaction
cooling tubes
feeding
Prior art date
Application number
PCT/SE2011/050332
Other languages
French (fr)
Inventor
Ulf Bojner
Original Assignee
Torkapparater-Termisk Processutrustning Ab
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 Torkapparater-Termisk Processutrustning Ab filed Critical Torkapparater-Termisk Processutrustning Ab
Priority to EP11763138.2A priority Critical patent/EP2553050B1/en
Priority to RU2012145858/05A priority patent/RU2559491C2/en
Publication of WO2011123025A1 publication Critical patent/WO2011123025A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/0445—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having conductive heating arrangements, e.g. heated drum wall
    • 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
    • C10B47/30—Other processes in rotary ovens or 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
    • C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
    • 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
    • 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, 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
    • F26B1/005—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids by means of disintegrating, e.g. crushing, shredding, milling the materials to be dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/30—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotary or oscillating containers; with movement performed by rotary floors
    • F26B17/32—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotary or oscillating containers; with movement performed by rotary floors the movement being in a horizontal or slightly inclined plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/02—Biomass, e.g. waste vegetative matter, straw
    • 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
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin

Definitions

  • the present invention relates to a method and apparatus for torrefaction of biomass material at low temperature so as to obtain a product having high carbon content with possible hydrophobic characteristics.
  • Torrefaction of biomass material is known since long and the so formed product has high carbon content.
  • the torrefied product may be used to replace coal in many applications and has many advantages regarding handling properties. It is for instance hydrophobic and will thus have low moisture content. Moreover, it will not be affected by weather and wind and demands no particular storage conditions.
  • the torrefaction of biomass material is a mainly exothermic reaction starting at about 260°C and performed in an inert atmosphere, thus it is a gasification of the biomass material at low temperature. Since the reaction is in most cases exothermic the reaction velocity must be controlled. Normally this is done by cooling the jacket of the reactor. However, when performing torrefaction a pyrolytic gas is formed.
  • the object with the invention is to provide a method and an apparatus by which the formation of sticky tar on the inner surfaces of the reactor is eliminated. According to the invention this is achieved by a method for torrefaction of biomass material at low temperature,
  • the reactor comprises a rotating reactor having an external stationary casing and an internal jacket and provided with in the circumferential direction regularly spaced cooling tubes having a distance in the radial direction relative to the jacket, and wherein the internal jacket of reactor is adapted to be heated and the cooling tubes are adapted be cooled by feeding a cooling fluid to the same so as to cool the biomass material being torrefied.
  • FIG. 1 is a schematic view of an apparatus for torrefaction of biomass material according to the invention
  • FIG. 2 is a schematic sectional side view taken at line II- II in Fig. 3 of a reactor used in the apparatus in Fig. 1, and
  • - Fig. 3 is a schematic sectional end view taken at line III- III in Fig. 2 of the reactor in Fig. 2.
  • biomass material any materials having a suitable organic compound content, such as plant material, waste material, etc.
  • an apparatus 1 for torrefaction of biomass material at low temperature comprises means 2 for feeding a finely divided biomass material to an inlet end 3 of at least one heater 4, preferably at least one tubular heater, and most preferably at least one rotating tubular heater, for drying and heating said biomass material.
  • the heater 4 is connected at its outlet end 5 to an inlet end 11 of at least one
  • torrefaction reactor 10 At an outlet end 12 of the reactor 10 suitable means (not shown) are arranged for on one hand collecting, cooling and transporting the so formed torrefied product to a suitable storage bunker (not shown) and on the other hand collecting possible formed process gas.
  • the reactor 10 is preferably a rotating reactor 10 having an external stationary casing 13 and internal rotating jacket 14 provided internally in the circumferential direction with regularly spaced cooling tubes 15 having a distance in the radial direction relative to the jacket (Fig. 2 and 3) .
  • the internal jacket 14 of the reactor 10 is adapted to be heated by a suitable heating fluid so as to torrefy the biomass material in an inert atmosphere, i.e. without any inlet of air or oxygen to the reactor.
  • the treatment temperature of the reactor 10 lies within the interval of 250 to 320°C,
  • a heating fluid is fed into the reactor preferably at its bottom at A and is released preferably at its top at B.
  • the heating fluid is preferably heated gas.
  • the biomass material has to be cooled. According to the invention this is done by the in the circumferential direction regularly spaced cooling tubes 15 which are adapted be cooled by suitable cooling fluid which is fed into the tubes at C of the reactor and released from the tubes at D of the reactor.
  • the in the circumferential direction regularly spaced cooling tubes 15 are so placed in the reactor 10 that they extend between respective ends 15,16 of the reactor and are located close to the inner surface of the internal jacket 14, so when the reactor with biomass material is rotated the biomass material will progressively cover the lowest cooling tubes in the reactor and will thereby be cooled.
  • the torrefied product is preferably cooled in counter-current flow.
  • the internal rotating jacket 14 should be kept at a temperature above the liquefying temperature of the pyrolytic gas. Since the cooling tubes are cool pyrolytic gas will liquefy on the tubes and form a sticky tar. The torrefied product will thus adhere to the cooling tubes 15 but will be worn off as the cooling tubes pass through the torrefied product at the bottom of the rotating reactor.
  • the cooling fluid is preferably feed only to the tubes partly or wholly in contact with the torrefied product, thus to the cooling tubes at the bottom of the reactor.

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

Abstract

The invention relates to method for torrefaction of biomass material at low temperature comprising the steps of: - providing a finely divided biomass material, - feeding said finely divided biomass material to at least one heater (4) for drying and heating said biomass material, - feeding said dried biomass material to at least one rotating torrefaction reactor (10), said reactor being provided with a heated jacket (14) and in the circumferential direction regularly spaced internal cooling tubes (15), whereby said cooling tubes (15) are so arranged that at least some of them, during rotation of said at least one reactor, will be in contact with and cool the biomass material being torrefied. The invention relates also to an apparatus for carrying out the method.

Description

METHOD AND APPARATUS FOR TORREFACTION OF BIOMASS MATERIAL
Field of the invention
The present invention relates to a method and apparatus for torrefaction of biomass material at low temperature so as to obtain a product having high carbon content with possible hydrophobic characteristics.
Background of the invention
Torrefaction of biomass material is known since long and the so formed product has high carbon content. The torrefied product may be used to replace coal in many applications and has many advantages regarding handling properties. It is for instance hydrophobic and will thus have low moisture content. Moreover, it will not be affected by weather and wind and demands no particular storage conditions. The torrefaction of biomass material is a mainly exothermic reaction starting at about 260°C and performed in an inert atmosphere, thus it is a gasification of the biomass material at low temperature. Since the reaction is in most cases exothermic the reaction velocity must be controlled. Normally this is done by cooling the jacket of the reactor. However, when performing torrefaction a pyrolytic gas is formed. This pyrolytic gas when cooled forms a sticky tar which will thus adhere to the inner surfaces of the reactor and interfere with the torrefied product so formed. However, the Applicant has noted that when torrefaction of biomass material of a certain type it may be necessary to, instead of cooling, heat said material. Summary of the invention
The object with the invention is to provide a method and an apparatus by which the formation of sticky tar on the inner surfaces of the reactor is eliminated. According to the invention this is achieved by a method for torrefaction of biomass material at low temperature,
comprising the steps of:
- providing a finely divided biomass material,
- feeding said finely divided biomass material to at least one heater for drying and heating said biomass material,
- feeding said dried biomass material to at least one rotating torrefaction reactor, said reactor being provided with a heated jacket and in the circumferential direction regularly spaced internal cooling tubes having a distance in the radial direction to the jacket, whereby said cooling tubes are so arranged that at least some of them, during rotation of said at least one reactor, will be in contact with and cool the biomass material being torrefied.
According to the invention this is also achieved by an
apparatus for torrefaction of biomass material at low
temperature comprising means for feeding a finely divided biomass material to at least one heater for drying and heating said biomass material, at least one torrefaction reactor connected to said at least one heater, and means for
collecting, cooling and transporting the so formed torrefied product to a suitable storage bunker, wherein the reactor comprises a rotating reactor having an external stationary casing and an internal jacket and provided with in the circumferential direction regularly spaced cooling tubes having a distance in the radial direction relative to the jacket, and wherein the internal jacket of reactor is adapted to be heated and the cooling tubes are adapted be cooled by feeding a cooling fluid to the same so as to cool the biomass material being torrefied.
Brief description of the drawings The present invention is described below with reference to the accompanying drawings, on which
- Fig. 1 is a schematic view of an apparatus for torrefaction of biomass material according to the invention,
- Fig. 2 is a schematic sectional side view taken at line II- II in Fig. 3 of a reactor used in the apparatus in Fig. 1, and
- Fig. 3 is a schematic sectional end view taken at line III- III in Fig. 2 of the reactor in Fig. 2.
Description of preferred embodiments
In the description below by biomass material is meant any materials having a suitable organic compound content, such as plant material, waste material, etc.
As seen in Fig. 1-3 an apparatus 1 for torrefaction of biomass material at low temperature comprises means 2 for feeding a finely divided biomass material to an inlet end 3 of at least one heater 4, preferably at least one tubular heater, and most preferably at least one rotating tubular heater, for drying and heating said biomass material. The heater 4 is connected at its outlet end 5 to an inlet end 11 of at least one
torrefaction reactor 10. At an outlet end 12 of the reactor 10 suitable means (not shown) are arranged for on one hand collecting, cooling and transporting the so formed torrefied product to a suitable storage bunker (not shown) and on the other hand collecting possible formed process gas.
The reactor 10 is preferably a rotating reactor 10 having an external stationary casing 13 and internal rotating jacket 14 provided internally in the circumferential direction with regularly spaced cooling tubes 15 having a distance in the radial direction relative to the jacket (Fig. 2 and 3) . When torrefying the biomass material in the reactor 10 the internal jacket 14 of the reactor 10 is adapted to be heated by a suitable heating fluid so as to torrefy the biomass material in an inert atmosphere, i.e. without any inlet of air or oxygen to the reactor. The treatment temperature of the reactor 10 lies within the interval of 250 to 320°C,
preferably within the interval of 270 to 300°C.
As schematically seen in Fig. 2 and 3 a heating fluid is fed into the reactor preferably at its bottom at A and is released preferably at its top at B. The heating fluid is preferably heated gas. When so doing an exothermic reaction is started within the biomass material. To control the reaction velocity the biomass material has to be cooled. According to the invention this is done by the in the circumferential direction regularly spaced cooling tubes 15 which are adapted be cooled by suitable cooling fluid which is fed into the tubes at C of the reactor and released from the tubes at D of the reactor.
More precisely, the in the circumferential direction regularly spaced cooling tubes 15 are so placed in the reactor 10 that they extend between respective ends 15,16 of the reactor and are located close to the inner surface of the internal jacket 14, so when the reactor with biomass material is rotated the biomass material will progressively cover the lowest cooling tubes in the reactor and will thereby be cooled. The torrefied product is preferably cooled in counter-current flow.
However, as mentioned above a pyrolytic gas is formed when torrefying the biomass material under these conditions.
Therefore, the temperature of the inner surface of the
internal rotating jacket 14 should be kept at a temperature above the liquefying temperature of the pyrolytic gas. Since the cooling tubes are cool pyrolytic gas will liquefy on the tubes and form a sticky tar. The torrefied product will thus adhere to the cooling tubes 15 but will be worn off as the cooling tubes pass through the torrefied product at the bottom of the rotating reactor.
Regarding the cooling of the cooling tubes 15 the cooling fluid is preferably feed only to the tubes partly or wholly in contact with the torrefied product, thus to the cooling tubes at the bottom of the reactor.

Claims

Claim
1. A method for torrefaction of biomass material at low temperature, characterized by the steps of:
- providing a finely divided biomass material,
- feeding said finely divided biomass material to at least one heater (4) for drying and heating said biomass material,
- feeding said dried biomass material to at least one rotating torrefaction reactor (10), said reactor being provided with a heated internal rotating jacket (14) and in the
circumferential direction regularly spaced internal cooling tubes (15), whereby said cooling tubes (15) are so arranged that at least some of them, during rotation of said at least one reactor, will be in contact with and cool the biomass material being torrefied.
2. The method according to claim 1, characterized by said torrefaction being made without the presence of air or oxygen.
3. The method according to claim 1 or 2, characterized by the treatment temperature of torrefaction reactor lies within the interval of 250 to 320°C, preferably within the interval of 270 to 300°C.
4. The method according to any of claims 1-3, characterized by feeding cooling fluid only to the cooling tubes (15) partly or wholly in contact with the biomass material being torrefied.
5. The method according to any of claims 1-4, characterized by the biomass material being selected from the group consisting of materials having a suitable organic compound content.
6. An apparatus (1) for torrefaction of biomass material at low temperature comprising means (2) for feeding a finely divided biomass material to at least one heater (4) for drying and heating said biomass material, at least one torrefaction reactor (10) connected to said at least one heater, and means for collecting, cooling and transporting the so formed
torrefied product to a suitable storage bunker, characterized in that the reactor (10) comprises a rotating reactor (10) having an external stationary casing (13) and a heated
internal rotating jacket (14) and provided with in the
circumferential direction regularly spaced internal cooling tubes (15), and that the internal rotating jacket (14) of reactor (10) is adapted to be heated and the cooling tubes are adapted be cooled by feeding a cooling fluid to the same so as to cool the biomass material being torrefied.
7. The apparatus according to claim 6, characterized in that said torrefaction is made without the presence of air or oxygen .
8. The apparatus according to claim 6 or 7, characterized in that the treatment temperature of the torrefaction reactor (10) lies within the interval of 250 to 320°C, preferably within the interval of 270 to 300°C.
9. The apparatus according to any of claims 6-8, characterized in that cooling fluid is only feed to the cooling tubes (15) partly or wholly in contact with the biomass material being torrefied .
10. The apparatus according to any of claims 6-9,
characterized in that the biomass material being selected from the group consisting of materials having a suitable organic compound content.
PCT/SE2011/050332 2010-03-29 2011-03-24 Method and apparatus for torrefaction of biomass material WO2011123025A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11763138.2A EP2553050B1 (en) 2010-03-29 2011-03-24 Method and apparatus for torrefaction of biomass material
RU2012145858/05A RU2559491C2 (en) 2010-03-29 2011-03-24 Method and device for biomass low-temperature pyrolysis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1050290A SE534630C2 (en) 2010-03-29 2010-03-29 Method and apparatus for dry refining of biomass
SE1050290-4 2010-03-29

Publications (1)

Publication Number Publication Date
WO2011123025A1 true WO2011123025A1 (en) 2011-10-06

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Country Status (4)

Country Link
EP (1) EP2553050B1 (en)
RU (1) RU2559491C2 (en)
SE (1) SE534630C2 (en)
WO (1) WO2011123025A1 (en)

Cited By (7)

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US8198493B1 (en) 2012-01-11 2012-06-12 Earth Care Products, Inc. High energy efficiency biomass conversion process
EP2710100A1 (en) * 2011-05-18 2014-03-26 Bioendev AB Method of torrefaction of a biomass comprising the step of cooling the torrefaction reaction
US20140325900A1 (en) * 2011-05-18 2014-11-06 Bioendev Ab Method and an arrangement for efficient torrefaction of biomass
CN105268395A (en) * 2014-06-25 2016-01-27 安徽扬子化工有限公司 Chemical engineering reagent reaction kettle
US9580665B2 (en) 2011-05-18 2017-02-28 Bioendev Ab Countercurrent oxygen enhanced torrefaction
US9926507B2 (en) 2011-05-18 2018-03-27 Bioendev Ab Method for monitoring and control of torrefaction temperature
WO2020170265A1 (en) * 2019-02-19 2020-08-27 E3 Waste Solutions System and process for producing torrefied product from biomass

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RU2714649C1 (en) * 2019-07-16 2020-02-18 Смышляев Сергей Владимирович Method for wood raw materials torrefication
RU2714648C1 (en) * 2019-07-16 2020-02-18 Смышляев Сергей Владимирович Reactor for wood raw material torrefication
EA039214B1 (en) * 2019-12-13 2021-12-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный технический университет" Method for wet torrefication (carbonization) of biomass

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2710100A1 (en) * 2011-05-18 2014-03-26 Bioendev AB Method of torrefaction of a biomass comprising the step of cooling the torrefaction reaction
EP2710100A4 (en) * 2011-05-18 2014-10-08 Bioendev Ab Method of torrefaction of a biomass comprising the step of cooling the torrefaction reaction
US20140325900A1 (en) * 2011-05-18 2014-11-06 Bioendev Ab Method and an arrangement for efficient torrefaction of biomass
US9580665B2 (en) 2011-05-18 2017-02-28 Bioendev Ab Countercurrent oxygen enhanced torrefaction
US9926507B2 (en) 2011-05-18 2018-03-27 Bioendev Ab Method for monitoring and control of torrefaction temperature
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