WO2005056723A1 - Method and system for the torrefaction of raw materials - Google Patents

Method and system for the torrefaction of raw materials Download PDF

Info

Publication number
WO2005056723A1
WO2005056723A1 PCT/NL2004/000873 NL2004000873W WO2005056723A1 WO 2005056723 A1 WO2005056723 A1 WO 2005056723A1 NL 2004000873 W NL2004000873 W NL 2004000873W WO 2005056723 A1 WO2005056723 A1 WO 2005056723A1
Authority
WO
WIPO (PCT)
Prior art keywords
torrefaction
chamber
gas
fed
heat
Prior art date
Application number
PCT/NL2004/000873
Other languages
French (fr)
Other versions
WO2005056723A8 (en
Inventor
Peter Christiaan Albert Bergman
Arjen Ragusa Boersma
Robin Willem Rudolf Zwart
Jacob Hendrik Arnold Kiel
Original Assignee
Stichting Energieonderzoek Centrum Nederland
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 Stichting Energieonderzoek Centrum Nederland filed Critical Stichting Energieonderzoek Centrum Nederland
Publication of WO2005056723A1 publication Critical patent/WO2005056723A1/en
Publication of WO2005056723A8 publication Critical patent/WO2005056723A8/en

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, 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
    • 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
    • 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
    • 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 present invention relates to a method for the production of solids from raw materials using torrefaction, wherein: a) raw material is subjected to an elevated temperature in a reactor in an atmosphere that has a low oxygen content or contains no oxygen, in that b) the raw material is brought into heat-exchanging contact with a gaseous medium at a temperature higher than the torrefaction temperature of the raw material, solid fuel and reaction gas being produced, c) wherein at least part of the reaction gas is fed to a condensation chamber in which said reaction gas is at least partially cooled such that at least some of the condensable components in the torrefaction gas condense and are discharged from said condensation chamber separately from the non-condensed torrefaction gases and at least part of the condensate obtained is combusted by adding gas containing oxygen.
  • Such a method is disclosed in FR 2 594 135.
  • a pyrolysis treatment is described where lignocellulose material is treated under a pressure of approximately 800 Pa and at a temperature of approximately 400 °C.
  • This method is used in particular for the production of charcoal.
  • the solid obtained has, inter alia, a higher calorific value and has better grindability.
  • the solid obtained via the present invention is very suitable as fuel in, for example, gasification and combustion processes.
  • Possible raw materials consist entirely or partially of organic material and originate, for example, from forestry, agriculture or another branch of industry. These streams can also be entirely or partially of fossil nature or a mixed stream of forms mentioned above.
  • biomass (residual) streams such as loppings, cultivated wood, grasses and seeds and raw materials derived therefrom, which, incidentally, can be regarded as product in another preceding process.
  • the raw materials concerned are those that consist entirely or partially of lignocellulose.
  • Possible raw materials are also waste wood originating from, inter alia, the building trade or the wood industry and integral domestic and industrial waste or a separated sub-stream thereof.
  • the method described in this French patent is unsuitable for large-scale application.
  • the throughput time is too long, whilst the product obtained is suitable only when very pure wood-like materials are used.
  • the aim of the present invention is to avoid these disadvantages.
  • said treatment at elevated temperature comprises a torrefaction treatment at 200 °C - 320 °C
  • the reaction gas comprises torrefaction gas
  • said raw material is fed continuously to said reactor and product is discharged continuously therefrom.
  • the raw material has a certain moisture content and by the thermally induced reactions that take place during the torrefaction process.
  • This water cannot be removed from the torrefaction gases selectively via cooling and partial condensation.
  • other components such as furans, acids and phenols will condense or dissolve in the water, as a result of which a polluted stream of water is produced that in some cases proves very difficult to purify.
  • the raw material such as biomass, enters directly into heat-exchanging contact with the gaseous medium.
  • the pressure under which torrefaction is carried out is essentially the same as atmospheric pressure.
  • the removal of components from the torrefaction gas that could otherwise lead to emission problems or to problems in a combustion chamber or a heat exchanger (for example corrosion or deposition) takes place in a highly effective manner.
  • This is applicable in particular to raw materials with a high content of halogens, heavy metals (such as mercury), sulphur or nitrogen.
  • halogen-containing components, nitrogen- and sulphur-containing components and components consisting of heavy metals, present in the torrefaction gas can be removed from the condensate obtained (by cooling of the torrefaction gas) before at least part of this condensate is fed to a combustion step with the addition of oxygen.
  • stepwise cooling of at least part of the torrefaction gas takes place, a specific fraction of the torrefaction gas condensing in each step.
  • specific components in the torrefaction gas are prevented from producing contamination at a temperature lower than that at which said fraction has been collected, as a result of which selective removal of water from the condensate obtained by cooling the torrefaction gas is better possible via, for example, membrane separation or liquid/liquid extraction.
  • process water can indeed be removed and discharged without contamination or with minimal contamination.
  • at least part of the abovementioned condensate is fed to a combustion chamber where this is combusted with the addition of a gas containing oxygen.
  • At least part of the condensate is optionally vaporised in a vaporisation chamber before it is fed to at least one combustion chamber.
  • part of the abovementioned condensate is combusted in a combustion chamber together with part of the torrefaction gas that originates either from a torrefaction chamber or from a condensation chamber.
  • at least one additional auxiliary can optionally be fed in, which is combusted in the same combustion chamber or another combustion chamber.
  • this auxiliary is a raw material, or a raw material in which the moisture content has been lowered, or a solid produced according to the method.
  • a raw material is fed to a torrefaction chamber.
  • the requisite energy that is required for the process is introduced into said torrefaction chamber by also feeding a gaseous medium thereto, such that the temperature of this gaseous medium is higher than the temperature that is understood as the torrefaction temperature in said torrefaction chamber.
  • This gaseous medium becomes mixed with gas that is formed in said torrefaction chamber and removed from the torrefaction chamber as torrefaction gas.
  • Torrefaction gas thus at least partially consists of components that have been formed from a raw material and are gaseous at said torrefaction temperature of between 200°C and 320°C.
  • this gaseous medium is compressed to compensate for pressure drops over a torrefaction chamber. It can be advantageous to raise the temperature of the gas beforehand, so that condensation as a result of heat losses before this compression is prevented.
  • combustion of both at least part of the condensate and at least part of the torrefaction gas takes place in a common combustion chamber.
  • the solids originating from torrefaction are preferably cooled in order to return the heat contained therein as far as possible to the torrefaction process.
  • part of the gaseous medium is discharged mixed with torrefaction gases, but before the discharge the useful energy contained in this gas mixture is used to heat, inter alia, inlet streams to the torrefaction chamber.
  • This is effected by combustion of the gases in a combustion chamber while feeding in oxygen. This produces a flue gas and this flue gas is not returned to the process but is discharged after heat exchange with the material streams introduced into the torrefaction chamber and optional purification.
  • the heat that is liberated during the combustion of at least part of the torrefaction gas can be used to dry the raw materials fed to the torrefaction and/or can at least partially be used for heating the gaseous medium that is fed to the torrefaction chamber and has to maintain the torrefaction process.
  • the invention also relates to a system for subjecting raw materials to a torrefaction treatment, comprising a torrefaction chamber with inlet for the raw materials and outlet for solids, which chamber is provided with a feed for heating gases, as well as an outlet for heating gases and gases liberated during torrefaction, wherein said outlet is connected to a combustion chamber, which combustion chamber is provided with an inlet for introducing gas containing oxygen, wherein the outlet of said combustion chamber is connected via heat exchangers to a discharge from a system, which heat exchangers are connected on the other side to the inlet feed of the torrefaction chamber.
  • FIG. 1 shows a block diagram of a first variant of the torrefaction operation according to the present invention
  • Fig. 2 shows a block diagram of a second variant of the present invention
  • Fig. 3 shows a block diagram of a third variant of the present invention
  • Fig. 4 shows a block diagram of a fourth variant of the present invention.
  • the system according to the present invention is indicated in its entirety by 1.
  • the torrefaction process is carried out at between 200 and 320 °C, and more particularly between 200 and 280 °C.
  • the material to be fed to the torrefaction process enters the torrefaction chamber 2 continuously via inlet 4.
  • the torrefaction chamber is provided with an outlet 5 for solid as well as an outlet 6 for gaseous substance.
  • Outlet 6 is connected to the inlet 8 of a condensation chamber 7.
  • the residual torrefaction gases consisting of the gaseous medium originating from the feed 3 as well as the gases produced during torrefaction are discharged via outlet 9.
  • the condensed substances from the torrefaction gases are discharged at 10 and fed to the inlet 12 of a combustion chamber 11.
  • the condensed substance is optionally subjected to a purification step.
  • the gases issuing from the outlet 9 are fed in part to a heat exchanger 16, to be discussed below, fed in part to chamber 26 and fed in part to the inlet of the combustion chamber 11. Air is also fed to this combustion chamber 11 via inlet 14.
  • an auxiliary can also be fed in to promote the combustion. This can be used both at start-up and during the maintenance stage.
  • Such an auxiliary fuel can be either liquid, gaseous or solid.
  • the solid obtained in the torrefaction operation is mentioned as an example of a solid. Combustion of part of the torrefaction gas and all products liberated during the condensation takes place in the combustion chamber 11.
  • the flue gas thus produced is fed via outlet 15 to heat exchanger 16 and more particularly the inlet 17 thereof.
  • this flue gas is fed to the inlet 22 of a dryer 21. After further cooling, the gas is discharged into the environment via outlet 23 after optional intermediate purification steps.
  • Raw material is fed to the dryer via inlet 24.
  • the gaseous medium (which contains some torrefaction gas) is fed into heat exchanger 16 and after heating is introduced into inlet 3 of the torrefaction chamber.
  • the device described above functions as follows: The raw material is fed continuously to the inlet 24 of a dryer 21. Depending on the percentage moisture in the material fed in, a drying step is or is not necessary. In the dryer a large proportion or all of the water is removed by heating.
  • the material thus obtained is then fed to the torrefaction chamber 2 and subjected to torrefaction treatment with a gaseous medium that enters through the inlet 3.
  • the continuous solid stream issuing from the outlet 5 is fed to the inlet 27 of a cooler 26 and subjected to a cooling step and discharged at 28.
  • This cooling part of the gas originating from the torrefaction and introduced at inlet 29 is heated and discharged at 30.
  • This gas is then mixed with the gas issuing from the outlet 6 of the torrefaction chamber 2.
  • a solid is produced that can be used, for example, as fuel for power stations.
  • the torrefaction gases released at the outlet 6 consist of the gaseous medium and gases produced in the torrefaction chamber 2.
  • a condensation step part of this gas is fed to the combustion 11 and discharged into the environment after utilising the heat.
  • Another fraction is circulated to the torrefaction chamber.
  • a further fraction is used for cooling solids liberated during torrefaction.
  • Fig. 2 a variant of the present invention is shown, which is indicated in its entirety by 31. All components corresponding to the components described above have been given the same reference numerals increased by 30. That is to say, the torrefaction chamber is indicated by 32, the feed of which chamber with a heating gas is indicated by 33 and the inlet for raw materials is indicated by 34.
  • the cooler 56 that is now used is not incorporated in the stream of the gaseous medium, but a separate cooling medium is fed through it. That is to say, a separate cooling medium passes through the inlet 59 and outlet 60. Moreover, with this embodiment only a small fraction of the gases released from the outlet 39 after the condensation is fed to the combustion chamber 41. This is indicated by a line 43. Instead of connecting the heat exchanger 16 and drying chamber 21 in series as above as far as the gas stream issuing from the outlet 15 of the combustion chamber 11 is concerned, the gas issuing from the combustion chamber 41 is now distributed between heat exchanger 46 and dryer 51. In Fig. 3 a further variant of the present invention is shown, which is indicated in its entirety by 61.
  • FIG. 4 a further variant of the invention is indicated in its entirety by 91.
  • all components corresponding to the embodiment in Fig. 1 have been provided with a reference numeral that has been increased by 90.
  • a fraction of the torrefaction gases is not subjected to the condensation process but is fed directly to the combustion chamber 101.
  • the cooled gas is used to cool the solids in block 116. This gas is then returned to the torrefaction unit via heat exchanger 106.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Treating Waste Gases (AREA)
  • Incineration Of Waste (AREA)

Abstract

Method and system for the production of solids from raw materials. These materials are subjected to a continuous torrefaction treatment at a temperature of between 200 and 320°C. Heating takes place by means of circulating gases that entor into direct heat exchange with the raw materials fed to the torrefaction chamber. The ga.es liberated during torrefaction are combusted while feeding in oxygen and discharged after the beat has been extracted from the flue gas thus produced. The heat from the flue gas is used to heat the gaseous medium that is fed to the torrefaction chamber. The production of effluent is prevented in that the condensate formed in the process is combusteal, optionally after specific purification steps.

Description

METHOD AND SYSTEM FOR THE TORREFACTION OF RAW MATERIALS
The present invention relates to a method for the production of solids from raw materials using torrefaction, wherein: a) raw material is subjected to an elevated temperature in a reactor in an atmosphere that has a low oxygen content or contains no oxygen, in that b) the raw material is brought into heat-exchanging contact with a gaseous medium at a temperature higher than the torrefaction temperature of the raw material, solid fuel and reaction gas being produced, c) wherein at least part of the reaction gas is fed to a condensation chamber in which said reaction gas is at least partially cooled such that at least some of the condensable components in the torrefaction gas condense and are discharged from said condensation chamber separately from the non-condensed torrefaction gases and at least part of the condensate obtained is combusted by adding gas containing oxygen. Such a method is disclosed in FR 2 594 135. In this publication a pyrolysis treatment is described where lignocellulose material is treated under a pressure of approximately 800 Pa and at a temperature of approximately 400 °C. This method is used in particular for the production of charcoal. Compared with the raw material, the solid obtained has, inter alia, a higher calorific value and has better grindability. As a result the solid obtained via the present invention is very suitable as fuel in, for example, gasification and combustion processes. Possible raw materials consist entirely or partially of organic material and originate, for example, from forestry, agriculture or another branch of industry. These streams can also be entirely or partially of fossil nature or a mixed stream of forms mentioned above. Examples are biomass (residual) streams such as loppings, cultivated wood, grasses and seeds and raw materials derived therefrom, which, incidentally, can be regarded as product in another preceding process. In the more general sense the raw materials concerned are those that consist entirely or partially of lignocellulose. Possible raw materials are also waste wood originating from, inter alia, the building trade or the wood industry and integral domestic and industrial waste or a separated sub-stream thereof. The method described in this French patent is unsuitable for large-scale application. The throughput time is too long, whilst the product obtained is suitable only when very pure wood-like materials are used. The aim of the present invention is to avoid these disadvantages. This aim is realised with a method as described above in that said treatment at elevated temperature comprises a torrefaction treatment at 200 °C - 320 °C, the reaction gas comprises torrefaction gas and said raw material is fed continuously to said reactor and product is discharged continuously therefrom. As a result of the use of torrefaction, it is possible to use a wide variety of types of material streams as input product. Moreover, a relatively high yield can be obtained and a hydrophobic product is produced that is easy to grind. As a result of the relatively low temperature it is technically easily possible to carry out this process continuously. Moreover, the production of contaminated process water is prevented with the present invention. This process water is produced in the process because the raw material has a certain moisture content and by the thermally induced reactions that take place during the torrefaction process. This water cannot be removed from the torrefaction gases selectively via cooling and partial condensation. Thus, with the condensation of water, other components, such as furans, acids and phenols will condense or dissolve in the water, as a result of which a polluted stream of water is produced that in some cases proves very difficult to purify. This is highly undesirable from the economic standpoint. According to an advantageous embodiment, the raw material, such as biomass, enters directly into heat-exchanging contact with the gaseous medium. According to the present invention the pressure under which torrefaction is carried out is essentially the same as atmospheric pressure. According to a further advantageous embodiment, the removal of components from the torrefaction gas that could otherwise lead to emission problems or to problems in a combustion chamber or a heat exchanger (for example corrosion or deposition) takes place in a highly effective manner. This is applicable in particular to raw materials with a high content of halogens, heavy metals (such as mercury), sulphur or nitrogen. In the present invention halogen-containing components, nitrogen- and sulphur-containing components and components consisting of heavy metals, present in the torrefaction gas, can be removed from the condensate obtained (by cooling of the torrefaction gas) before at least part of this condensate is fed to a combustion step with the addition of oxygen. According to a further advantageous embodiment, stepwise cooling of at least part of the torrefaction gas takes place, a specific fraction of the torrefaction gas condensing in each step. In this way specific components in the torrefaction gas are prevented from producing contamination at a temperature lower than that at which said fraction has been collected, as a result of which selective removal of water from the condensate obtained by cooling the torrefaction gas is better possible via, for example, membrane separation or liquid/liquid extraction. As a result process water can indeed be removed and discharged without contamination or with minimal contamination. According to the present invention at least part of the abovementioned condensate is fed to a combustion chamber where this is combusted with the addition of a gas containing oxygen. In this way a significant proportion of the energy contained in the torrefaction gases issuing from a torrefaction chamber is retained for utilisation in the torrefaction process itself. With this procedure at least part of the condensate is optionally vaporised in a vaporisation chamber before it is fed to at least one combustion chamber. According to a further advantageous embodiment, part of the abovementioned condensate is combusted in a combustion chamber together with part of the torrefaction gas that originates either from a torrefaction chamber or from a condensation chamber. With this procedure at least one additional auxiliary can optionally be fed in, which is combusted in the same combustion chamber or another combustion chamber. According to a further advantageous embodiment this auxiliary is a raw material, or a raw material in which the moisture content has been lowered, or a solid produced according to the method. According to a further advantageous embodiment, a raw material is fed to a torrefaction chamber. The requisite energy that is required for the process is introduced into said torrefaction chamber by also feeding a gaseous medium thereto, such that the temperature of this gaseous medium is higher than the temperature that is understood as the torrefaction temperature in said torrefaction chamber. This gaseous medium becomes mixed with gas that is formed in said torrefaction chamber and removed from the torrefaction chamber as torrefaction gas. Torrefaction gas thus at least partially consists of components that have been formed from a raw material and are gaseous at said torrefaction temperature of between 200°C and 320°C. According to a further advantageous embodiment, this gaseous medium is compressed to compensate for pressure drops over a torrefaction chamber. It can be advantageous to raise the temperature of the gas beforehand, so that condensation as a result of heat losses before this compression is prevented. According to a further advantageous embodiment, combustion of both at least part of the condensate and at least part of the torrefaction gas takes place in a common combustion chamber. The solids originating from torrefaction are preferably cooled in order to return the heat contained therein as far as possible to the torrefaction process. This can be done either by means of the gases that are permanently present (on their own or mixed with torrefaction gases) or via an indirect heat exchange with a cooling medium that is present particularly for this. According to the present invention part of the gaseous medium is discharged mixed with torrefaction gases, but before the discharge the useful energy contained in this gas mixture is used to heat, inter alia, inlet streams to the torrefaction chamber. This is effected by combustion of the gases in a combustion chamber while feeding in oxygen. This produces a flue gas and this flue gas is not returned to the process but is discharged after heat exchange with the material streams introduced into the torrefaction chamber and optional purification. The heat that is liberated during the combustion of at least part of the torrefaction gas can be used to dry the raw materials fed to the torrefaction and/or can at least partially be used for heating the gaseous medium that is fed to the torrefaction chamber and has to maintain the torrefaction process. The invention also relates to a system for subjecting raw materials to a torrefaction treatment, comprising a torrefaction chamber with inlet for the raw materials and outlet for solids, which chamber is provided with a feed for heating gases, as well as an outlet for heating gases and gases liberated during torrefaction, wherein said outlet is connected to a combustion chamber, which combustion chamber is provided with an inlet for introducing gas containing oxygen, wherein the outlet of said combustion chamber is connected via heat exchangers to a discharge from a system, which heat exchangers are connected on the other side to the inlet feed of the torrefaction chamber. The invention will be described in more detail with reference to illustrative embodiments shown highly diagrammatically in the drawing. In the drawing: Fig. 1 shows a block diagram of a first variant of the torrefaction operation according to the present invention; Fig. 2 shows a block diagram of a second variant of the present invention, Fig. 3 shows a block diagram of a third variant of the present invention; and Fig. 4 shows a block diagram of a fourth variant of the present invention. In Fig. 1 the system according to the present invention is indicated in its entirety by 1. There is a central torrefaction chamber 2 with a feed 3 for heating gases that maintain the torrefaction process. Preferably, the torrefaction process is carried out at between 200 and 320 °C, and more particularly between 200 and 280 °C. The material to be fed to the torrefaction process enters the torrefaction chamber 2 continuously via inlet 4. The torrefaction chamber is provided with an outlet 5 for solid as well as an outlet 6 for gaseous substance. Outlet 6 is connected to the inlet 8 of a condensation chamber 7. The residual torrefaction gases consisting of the gaseous medium originating from the feed 3 as well as the gases produced during torrefaction are discharged via outlet 9. The condensed substances from the torrefaction gases are discharged at 10 and fed to the inlet 12 of a combustion chamber 11. The condensed substance is optionally subjected to a purification step. The gases issuing from the outlet 9 are fed in part to a heat exchanger 16, to be discussed below, fed in part to chamber 26 and fed in part to the inlet of the combustion chamber 11. Air is also fed to this combustion chamber 11 via inlet 14. Apart from air, an auxiliary can also be fed in to promote the combustion. This can be used both at start-up and during the maintenance stage. Such an auxiliary fuel can be either liquid, gaseous or solid. The solid obtained in the torrefaction operation is mentioned as an example of a solid. Combustion of part of the torrefaction gas and all products liberated during the condensation takes place in the combustion chamber 11. The flue gas thus produced is fed via outlet 15 to heat exchanger 16 and more particularly the inlet 17 thereof. After cooling, this flue gas is fed to the inlet 22 of a dryer 21. After further cooling, the gas is discharged into the environment via outlet 23 after optional intermediate purification steps. Raw material is fed to the dryer via inlet 24. The gaseous medium (which contains some torrefaction gas) is fed into heat exchanger 16 and after heating is introduced into inlet 3 of the torrefaction chamber. The device described above functions as follows: The raw material is fed continuously to the inlet 24 of a dryer 21. Depending on the percentage moisture in the material fed in, a drying step is or is not necessary. In the dryer a large proportion or all of the water is removed by heating. The material thus obtained is then fed to the torrefaction chamber 2 and subjected to torrefaction treatment with a gaseous medium that enters through the inlet 3. The continuous solid stream issuing from the outlet 5 is fed to the inlet 27 of a cooler 26 and subjected to a cooling step and discharged at 28. By means of this cooling part of the gas originating from the torrefaction and introduced at inlet 29 is heated and discharged at 30. This gas is then mixed with the gas issuing from the outlet 6 of the torrefaction chamber 2. After cooling in chamber 26 a solid is produced that can be used, for example, as fuel for power stations. The torrefaction gases released at the outlet 6 consist of the gaseous medium and gases produced in the torrefaction chamber 2. As already described above, following a condensation step part of this gas is fed to the combustion 11 and discharged into the environment after utilising the heat. Another fraction is circulated to the torrefaction chamber. A further fraction is used for cooling solids liberated during torrefaction. In Fig. 2 a variant of the present invention is shown, which is indicated in its entirety by 31. All components corresponding to the components described above have been given the same reference numerals increased by 30. That is to say, the torrefaction chamber is indicated by 32, the feed of which chamber with a heating gas is indicated by 33 and the inlet for raw materials is indicated by 34. In contrast to the embodiment of the cooler 26 described above, the cooler 56 that is now used is not incorporated in the stream of the gaseous medium, but a separate cooling medium is fed through it. That is to say, a separate cooling medium passes through the inlet 59 and outlet 60. Moreover, with this embodiment only a small fraction of the gases released from the outlet 39 after the condensation is fed to the combustion chamber 41. This is indicated by a line 43. Instead of connecting the heat exchanger 16 and drying chamber 21 in series as above as far as the gas stream issuing from the outlet 15 of the combustion chamber 11 is concerned, the gas issuing from the combustion chamber 41 is now distributed between heat exchanger 46 and dryer 51. In Fig. 3 a further variant of the present invention is shown, which is indicated in its entirety by 61. All components corresponding to those in Fig. 1 have been given the same reference numerals increased by 60. The gases liberated during torrefaction are fed via line 68 to the condensation step 67. However, in contrast to the previous embodiments, a fraction of the torrefaction gases is fed directly to the combustion chamber 71. This separate feed is indicated by 89. An ancillary advantage of this possible embodiment is that the torrefaction gas is not cooled unnecessarily, since it has to be burned anyway. The same applies for a fraction of the torrefaction gases that is fed directly to the heat exchanger 76 via feed 79. Cooling of solids obtained during torrefaction takes place at 86 in a manner that is not shown in more detail. In Fig. 4 a further variant of the invention is indicated in its entirety by 91. Compared with the embodiment in Fig. 1, all components corresponding to the embodiment in Fig. 1 have been provided with a reference numeral that has been increased by 90. Reference is made explicitly to Figure 1 for a description of the mode of operation. With this embodiment, as in the case of the embodiment described with reference to Fig. 3, a fraction of the torrefaction gases is not subjected to the condensation process but is fed directly to the combustion chamber 101. In contrast to Figure 2 and 3 and corresponding to Figure 1, the cooled gas is used to cool the solids in block 116. This gas is then returned to the torrefaction unit via heat exchanger 106. As a result the heat that is liberated during cooling of the solids in 116 is recovered and employed to maintain the torrefaction treatment. At the same time only one recycle of gases is needed. Further variants will be immediately apparent to those skilled in the art after reading the above. These fall within the scope of the present application and more particularly of appended claims.

Claims

Claims
1. Method for the production of solids from raw materials using torrefaction, wherein: a) raw material is subjected to an elevated temperature in a reactor in an atmosphere that has a low oxygen content or contains no oxygen, in that b) the raw material is brought into heat-exchanging contact with a gaseous medium at a temperature higher than the torrefaction temperature of the raw material, solid fuel and reaction gas being produced, c) wherein at least part of the reaction gas is fed to a condensation chamber in which said reaction gas is at least partially cooled such that at least some of the condensable components in the torrefaction gas condense and are discharged from said condensation chamber separately from the non-condensed torrefaction gases and at least part of the condensate obtained is combusted by adding gas containing oxygen, characterised in that said treatment at elevated temperature comprises a torrefaction treatment at 200 °C - 320 °C, the reaction gas comprises torrefaction gas and said raw material is fed continuously to said reactor and product is discharged continuously therefrom.
2. Method according to Claim 1, wherein halogen-containing components, nitrogen- and sulphur-containing components, heavy metals and/or other impurities or products are removed from said condensate obtained by cooling the torrefaction gas.
3. Method according to one of the preceding claims, wherein step wise cooling of at least part of the torrefaction gas takes place in said condensation chamber, a specific fraction of at least part of the torrefaction gas condensing in each step.
4. Method according to one of the preceding claims, wherein part of said condensate is vaporised in a separate vaporisation chamber before the combustion.
5. Method according to one of the preceding claims, wherein part of the torrefaction gas produced is fed to a combustion chamber, combustion of the torrefaction gas taking place with the addition of oxygen.
6. Method according to one of the preceding claims, wherein the said condensate and said torrefaction gas are fed to a common combustion chamber.
7. Method according to one of the preceding claims, wherein said torrefaction gas is combusted and the flue gases liberated during this operation are fed to said combustion chamber for the condensate.
8. Method according to one of the preceding claims, wherein at least part of said heat in the flue gas that is discharged from said combustion chamber is added to the method.
9. Method according to one of the preceding claims, wherein at least part of said heat in said flue gas is exchanged with at least part of a gaseous medium that is fed to a torrefaction chamber.
10. Method according to one of the preceding claims, wherein at least part of the heat that is liberated during said cooling of at least part of said torrefaction gas is utilised elsewhere in the method.
11. Method according to one of the preceding claims, wherein an auxiliary substance that promotes said combustion is added to said combustion chamber for condensate and/or torrefaction gases.
12. Method according to Claim 11, wherein said auxiliary substance is an auxiliary substance based on said raw material.
13. Method according to one of the preceding claims, wherein said liberated heat is used to heat the raw material before this is subjected to torrefaction.
14. Method according to one of the preceding claims, wherein said gaseous medium consists of at least part of the torrefaction gas.
15. Method according to one of the preceding claims, wherein said gaseous medium is compressed before feeding to a torrefaction chamber.
16. Method according to one of the preceding claims, wherein the temperature of said gaseous medium is increased before said compression.
17. Method according to one of the preceding claims, wherein said cooling of the solid issuing from a torrefaction chamber takes place by means of a gaseous medium, said gaseous medium issuing from a condensation chamber.
18. System (1, 31, 61, 91) for subjecting raw materials to a torrefaction treatment, comprising a torrefaction chamber (2, 32, 62, 92) with inlet (4, 34, 64, 94) for raw materials and outlet (5, 35, 65, 95) for solids, said chamber (2, 32, 62, 92) being provided with a feed (3) for heating gases, as well as an outlet (6, 36, 66, 96) for heating gases and gases liberated during torrefaction, wherein said outlet (9, 39, 69, 99) is connected to a combustion chamber (11, 41, 71, 101), said combustion chamber being provided with an inlet (14, 44, 74, 94) for introducing gas containing oxygen, wherein the outlet (15, 45, 75, 105) of said combustion chamber (11, 41, 71, 101) is connected via heat exchangers (16, 46; 21, 51, 76, 106, 81, 111) to a discharge from a system, said heat exchangers being connected on the other side to the inlet feed of the torrefaction chamber, characterised in that the outlet (6, 36, 66, 96) of the torrefaction chamber (2, 32, 62, 92) is connected to a condensation chamber (7, 37, 67, 97).
PCT/NL2004/000873 2003-12-15 2004-12-15 Method and system for the torrefaction of raw materials WO2005056723A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1025027 2003-12-15
NL1025027A NL1025027C2 (en) 2003-12-15 2003-12-15 Method and system for the production of solids from raw materials.

Publications (2)

Publication Number Publication Date
WO2005056723A1 true WO2005056723A1 (en) 2005-06-23
WO2005056723A8 WO2005056723A8 (en) 2006-05-18

Family

ID=34676041

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2004/000873 WO2005056723A1 (en) 2003-12-15 2004-12-15 Method and system for the torrefaction of raw materials

Country Status (2)

Country Link
NL (1) NL1025027C2 (en)
WO (1) WO2005056723A1 (en)

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1029909C2 (en) * 2005-09-08 2007-03-09 Stichting Energie Torrefaction process for treating biomass in order to produce biofuel, carried out at pressure chosen so that liquid water is present in torrefaction reactor
NL1030864C2 (en) * 2006-01-06 2007-07-09 Stichting Energie Method and device for treating biomass.
NL1032001C2 (en) * 2006-06-14 2007-12-17 Torr Coal Technology B V Preparation by torrefaction of a solid fuel useful as fuel for a coal-fired power plant involves heating a starting composition comprising a secondary recovered fuel material indirectly at specific mass temperature
WO2007145507A2 (en) * 2006-06-14 2007-12-21 Torr-Coal Technology B.V. Method for the preparation of solid fuels by means of torrefaction as well as the solid fuels thus obtained and the use of these fuels
DE102007050895A1 (en) * 2007-10-24 2009-04-30 Siemens Ag Off-stream gasification of biomass as a slurry
WO2011001410A1 (en) * 2009-07-02 2011-01-06 Gershon Ben-Tovim Torrefaction apparatus
WO2011018505A2 (en) 2009-08-12 2011-02-17 Leibniz-Institut für Agrartechnik Potsdam-Bornim e.V. Device and method for generating biogas and biochar and refining the biochar
EP2287278A2 (en) 2009-08-19 2011-02-23 Andritz Technology and Asset Management GmbH Method and system for the torrefaction of lignocellulosic material
US7942942B2 (en) * 2006-05-21 2011-05-17 Paoluccio John A Method and apparatus for biomass torrefaction, manufacturing a storable fuel from biomass and producing offsets for the combustion products of fossil fuels and a combustible article of manufacture
WO2011057822A1 (en) 2009-11-16 2011-05-19 Uhde Gmbh Device and method for creating a fine-grained fuel from solid or paste-like raw energy materials by means of torrefaction and crushing
DE102009053059A1 (en) 2009-11-16 2011-05-19 Schäfer Elektrotechnik und Sondermaschinen GmbH Device, useful for producing fine-grained fuel from solid or paste-like energy resource by torrefying and crushing, comprises impact reactor with rotor and impact elements, feeding devices for hot torrefying gas and energy resource
WO2012007574A1 (en) 2010-07-15 2012-01-19 Thyssenkrupp Polysius Ag Device and method for drying and torrefying at least one carbon-containing substance stream in a multiple-hearth furnace
NL2005716C2 (en) * 2010-11-18 2012-03-12 Stichting Energie Torrefying device and process for the thermal treatment of organic material.
DE102010045612A1 (en) * 2010-09-17 2012-03-22 Erich Schürmann Method and device for torrefaction of fermentation residues in biogas plants
US8203024B2 (en) 2011-08-23 2012-06-19 Advanced Toffefaction Systems, LLC Torrefaction systems and methods including catalytic oxidation and/or reuse of combustion gases directly in a torrefaction reactor, cooler, and/or dryer/preheater
US8246788B2 (en) 2010-10-08 2012-08-21 Teal Sales Incorporated Biomass torrefaction system and method
US8266812B2 (en) 2008-10-03 2012-09-18 Wyssmont Company Inc. System for drying and torrefaction
US8276289B2 (en) 2009-03-27 2012-10-02 Terra Green Energy, Llc System and method for preparation of solid biomass by torrefaction
WO2012137895A1 (en) 2011-04-08 2012-10-11 株式会社日立製作所 Apparatus and method for producing semi-carbonized fuel of biomass, and power generation system using semi-carbonized fuel
US8304590B2 (en) 2008-04-03 2012-11-06 North Carolina State University Autothermal and mobile torrefaction devices
EP2543718A1 (en) * 2011-07-08 2013-01-09 Remak-Rozruch SA An integrated process for firing of biomass and/or waste in existing solid fuel fired power plants, and a solid fuel power plant for firing of biomass and/or waste materials
WO2013162355A1 (en) 2012-04-23 2013-10-31 Stichting Energieonderzoek Centrum Nederland Wet biomass treatment
WO2013173929A1 (en) * 2012-05-25 2013-11-28 Airex Energie Inc. Method and apparatus for torrefaction of biomass with a cyclonic bed reactor
DE102012013131A1 (en) 2012-07-03 2014-01-09 Rwe Innogy Gmbh Torrefaction of biomass in torrefaction system with torrefaction reactor, comprises combusting torrefaction gas with water-steam-cycle in power plant coupled with torrefaction reactor, and decoupling energy for torrefaction from power plant
DE102012013132A1 (en) 2012-07-03 2014-01-09 Rwe Innogy Gmbh Torrefaction of biomass in torrefaction system with torrefaction reactor, comprises combusting torrefaction gas in power plant coupled with reactor or heating plant, and decoupling energy for torrefaction from power plant or heating plant
WO2015091492A1 (en) 2013-12-19 2015-06-25 Axens Method for roasting a carbonaceous feedstock comprising an optimised drying step
US9289217B2 (en) 2009-07-16 2016-03-22 Circ Medtech Ltd. Method and system for circumcision
WO2016204610A1 (en) 2015-06-15 2016-12-22 VAN EXEL, Roland Alexander Improved process for the thermo-chemical treatment of biomass using controlled application of oxygen
RU2623225C2 (en) * 2011-05-18 2017-06-23 Биоэндев Аб Countercurrent oxygen-enhanced torrefaction
US9926507B2 (en) 2011-05-18 2018-03-27 Bioendev Ab Method for monitoring and control of torrefaction temperature
WO2019059768A1 (en) 2017-09-21 2019-03-28 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Treatment of biomass with palm oil mill effluent (pome)
EP3712233A1 (en) 2019-03-20 2020-09-23 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk Onderzoek TNO Treatment of biomass with vinasse
EP3782725A1 (en) 2019-08-21 2021-02-24 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk Onderzoek TNO Reactor for the hydrothermal treatment of biomass
EP4095219A1 (en) 2021-05-26 2022-11-30 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Hydrothermal treatment of biomass

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8504929A (en) * 1985-10-07 1987-05-12 Christiaan Martien Schout PROCESS AND EQUIPMENT FOR THE PRODUCTION OF CHARCOAL
FR2594135A1 (en) * 1986-02-13 1987-08-14 Sennesael Etienne Process for carbonisation of lignocellulosic materials and a device for its use

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8504929A (en) * 1985-10-07 1987-05-12 Christiaan Martien Schout PROCESS AND EQUIPMENT FOR THE PRODUCTION OF CHARCOAL
FR2594135A1 (en) * 1986-02-13 1987-08-14 Sennesael Etienne Process for carbonisation of lignocellulosic materials and a device for its use

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198725, Derwent World Patents Index; Class H09, AN 1987-170382, XP002292487 *
JAMES R. ARCATE: "Global markets and technologies for torrefied wood in 2002", WOOD-ENERGY, no. 6, July 2002 (2002-07-01), LONS LE SAUNIER, pages 26 - 28, XP002292486, ISSN: 1561-0802, Retrieved from the Internet <URL:http://www.itebe.org/portail/affiche.asp?arbo=2&num=240> [retrieved on 20040813] *

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1029909C2 (en) * 2005-09-08 2007-03-09 Stichting Energie Torrefaction process for treating biomass in order to produce biofuel, carried out at pressure chosen so that liquid water is present in torrefaction reactor
EA012806B1 (en) * 2006-01-06 2009-12-30 Стихтинг Энергиондерзук Сентрум Недерланд Process and device for treating biomass
AU2007203837B2 (en) * 2006-01-06 2010-12-16 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Process and device for treating biomass
US8105400B2 (en) * 2006-01-06 2012-01-31 Stichting Energieonderzoek Centrum Nederland Process and device for treating biomass
WO2007078199A1 (en) * 2006-01-06 2007-07-12 Stichting Energieonderzoek Centrum Nederland Process and device for treating biomass
NL1030864C2 (en) * 2006-01-06 2007-07-09 Stichting Energie Method and device for treating biomass.
US7942942B2 (en) * 2006-05-21 2011-05-17 Paoluccio John A Method and apparatus for biomass torrefaction, manufacturing a storable fuel from biomass and producing offsets for the combustion products of fossil fuels and a combustible article of manufacture
US8435314B2 (en) 2006-06-14 2013-05-07 Torr-Coal Technology, B.V. Method for the preparation of solid fuels by means of torrefaction as well as the solid fuels thus obtained and the use of these fuels
JP2009540097A (en) * 2006-06-14 2009-11-19 トル−コール テクノロジー べー ヴェー Method of preparing solid fuel by roasting, solid fuel thus obtained and use of those fuels
WO2007145507A3 (en) * 2006-06-14 2008-10-02 Torr Coal Technology B V Method for the preparation of solid fuels by means of torrefaction as well as the solid fuels thus obtained and the use of these fuels
US8231696B2 (en) 2006-06-14 2012-07-31 Torr-Coal Technology, B.V. Method for the preparation of solid fuels by means of torrefaction as well as the solid fuels thus obtained and the use of these fuels
JP2013231183A (en) * 2006-06-14 2013-11-14 Torr-Coal Technology Bv Method for reducing total chlorine content in torrefied solid fuel obtained from starting composition having srf material
WO2007145507A2 (en) * 2006-06-14 2007-12-21 Torr-Coal Technology B.V. Method for the preparation of solid fuels by means of torrefaction as well as the solid fuels thus obtained and the use of these fuels
NL1032001C2 (en) * 2006-06-14 2007-12-17 Torr Coal Technology B V Preparation by torrefaction of a solid fuel useful as fuel for a coal-fired power plant involves heating a starting composition comprising a secondary recovered fuel material indirectly at specific mass temperature
DE102007050895A1 (en) * 2007-10-24 2009-04-30 Siemens Ag Off-stream gasification of biomass as a slurry
US8304590B2 (en) 2008-04-03 2012-11-06 North Carolina State University Autothermal and mobile torrefaction devices
US8549769B2 (en) 2008-10-03 2013-10-08 Wyssmont Company Inc. System for drying and torrefaction
US8266821B2 (en) 2008-10-03 2012-09-18 Wyssmont Company Inc. Method for drying and torrefaction
US8266812B2 (en) 2008-10-03 2012-09-18 Wyssmont Company Inc. System for drying and torrefaction
US8322056B2 (en) 2009-03-27 2012-12-04 Terra Green Energy, Llc System and method for preparation of solid biomass by torrefaction
US8276289B2 (en) 2009-03-27 2012-10-02 Terra Green Energy, Llc System and method for preparation of solid biomass by torrefaction
US9150791B2 (en) 2009-07-02 2015-10-06 Gershon Ben-Tovim Torrefaction apparatus
WO2011001410A1 (en) * 2009-07-02 2011-01-06 Gershon Ben-Tovim Torrefaction apparatus
US9289217B2 (en) 2009-07-16 2016-03-22 Circ Medtech Ltd. Method and system for circumcision
WO2011018505A2 (en) 2009-08-12 2011-02-17 Leibniz-Institut für Agrartechnik Potsdam-Bornim e.V. Device and method for generating biogas and biochar and refining the biochar
EP2287278A2 (en) 2009-08-19 2011-02-23 Andritz Technology and Asset Management GmbH Method and system for the torrefaction of lignocellulosic material
EP2287278A3 (en) * 2009-08-19 2012-11-07 Andritz Technology and Asset Management GmbH Method and system for the torrefaction of lignocellulosic material
US8449724B2 (en) 2009-08-19 2013-05-28 Andritz Technology And Asset Management Gmbh Method and system for the torrefaction of lignocellulosic material
JP2011042786A (en) * 2009-08-19 2011-03-03 Andritz Technology & Asset Management Gmbh Device and method for roasting lignocellulosic material
CN101993700B (en) * 2009-08-19 2013-12-18 安德里兹技术资产管理有限公司 Method and system for torrefaction of lignocellulosic material
CN101993700A (en) * 2009-08-19 2011-03-30 安德里兹技术资产管理有限公司 Method and system for the torrefaction of lignocellulosic material
RU2534085C2 (en) * 2009-08-19 2014-11-27 Андритц Текнолоджи Энд Эссет Менеджмент Гмбх Lignocellulosic material roasting method and unit
WO2011057822A1 (en) 2009-11-16 2011-05-19 Uhde Gmbh Device and method for creating a fine-grained fuel from solid or paste-like raw energy materials by means of torrefaction and crushing
DE102009053059A1 (en) 2009-11-16 2011-05-19 Schäfer Elektrotechnik und Sondermaschinen GmbH Device, useful for producing fine-grained fuel from solid or paste-like energy resource by torrefying and crushing, comprises impact reactor with rotor and impact elements, feeding devices for hot torrefying gas and energy resource
DE102010036425A1 (en) 2010-07-15 2012-01-19 Polysius Ag Apparatus and method for drying and Torrefizierung of at least one carbonaceous material flow in a multi-deck oven
US9102876B2 (en) 2010-07-15 2015-08-11 Thyssenkrupp Industrial Solutions Ag Device and method for the drying and torrefaction of at least one carbon-containing material flow in a multiple hearth furnace
WO2012007574A1 (en) 2010-07-15 2012-01-19 Thyssenkrupp Polysius Ag Device and method for drying and torrefying at least one carbon-containing substance stream in a multiple-hearth furnace
WO2012048677A2 (en) 2010-09-17 2012-04-19 Schuermann Erich Method and device for producing a solid fuel from biomass
DE102010045612A1 (en) * 2010-09-17 2012-03-22 Erich Schürmann Method and device for torrefaction of fermentation residues in biogas plants
US9359556B2 (en) 2010-10-08 2016-06-07 Teal Sales Incorporated Biomass torrefaction system and method
US8246788B2 (en) 2010-10-08 2012-08-21 Teal Sales Incorporated Biomass torrefaction system and method
US8252966B2 (en) 2010-10-08 2012-08-28 Teal Sales Incorporated Biomass torrefaction method
NL2005716C2 (en) * 2010-11-18 2012-03-12 Stichting Energie Torrefying device and process for the thermal treatment of organic material.
US9494313B2 (en) 2011-04-08 2016-11-15 Mitsubishi Hitachi Power Systems, Ltd. Device and method for manufacturing semi-carbonized fuel of biomass, and power generation system using semi-carbonized fuel
WO2012137895A1 (en) 2011-04-08 2012-10-11 株式会社日立製作所 Apparatus and method for producing semi-carbonized fuel of biomass, and power generation system using semi-carbonized fuel
EP2695931A4 (en) * 2011-04-08 2015-03-25 Mitsubishi Hitachi Power Sys Apparatus and method for producing semi-carbonized fuel of biomass, and power generation system using semi-carbonized fuel
EP2695931A1 (en) * 2011-04-08 2014-02-12 Hitachi, Ltd. Apparatus and method for producing semi-carbonized fuel of biomass, and power generation system using semi-carbonized fuel
RU2623225C2 (en) * 2011-05-18 2017-06-23 Биоэндев Аб Countercurrent oxygen-enhanced torrefaction
US9926507B2 (en) 2011-05-18 2018-03-27 Bioendev Ab Method for monitoring and control of torrefaction temperature
EP2543718A1 (en) * 2011-07-08 2013-01-09 Remak-Rozruch SA An integrated process for firing of biomass and/or waste in existing solid fuel fired power plants, and a solid fuel power plant for firing of biomass and/or waste materials
EP2543717A1 (en) * 2011-07-08 2013-01-09 Remak-Rozruch SA An integrated process for firing of biomass and/or waste in existing solid fuel fired power plants, and a solid fuel power plant for firing of biomass and/or waste materials
US8203024B2 (en) 2011-08-23 2012-06-19 Advanced Toffefaction Systems, LLC Torrefaction systems and methods including catalytic oxidation and/or reuse of combustion gases directly in a torrefaction reactor, cooler, and/or dryer/preheater
WO2013162355A1 (en) 2012-04-23 2013-10-31 Stichting Energieonderzoek Centrum Nederland Wet biomass treatment
US9683187B2 (en) 2012-05-25 2017-06-20 Airex Energie Inc. Method and apparatus for torrefaction of biomass with a cyclonic bed reactor
WO2013173929A1 (en) * 2012-05-25 2013-11-28 Airex Energie Inc. Method and apparatus for torrefaction of biomass with a cyclonic bed reactor
US10450523B2 (en) 2012-05-25 2019-10-22 Airex Energie Inc. Method and apparatus for torrefaction of biomass with a cyclonic bed reactor
DE102012013131A1 (en) 2012-07-03 2014-01-09 Rwe Innogy Gmbh Torrefaction of biomass in torrefaction system with torrefaction reactor, comprises combusting torrefaction gas with water-steam-cycle in power plant coupled with torrefaction reactor, and decoupling energy for torrefaction from power plant
DE102012013132A1 (en) 2012-07-03 2014-01-09 Rwe Innogy Gmbh Torrefaction of biomass in torrefaction system with torrefaction reactor, comprises combusting torrefaction gas in power plant coupled with reactor or heating plant, and decoupling energy for torrefaction from power plant or heating plant
WO2015091492A1 (en) 2013-12-19 2015-06-25 Axens Method for roasting a carbonaceous feedstock comprising an optimised drying step
WO2016204610A1 (en) 2015-06-15 2016-12-22 VAN EXEL, Roland Alexander Improved process for the thermo-chemical treatment of biomass using controlled application of oxygen
WO2019059768A1 (en) 2017-09-21 2019-03-28 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Treatment of biomass with palm oil mill effluent (pome)
EP3712233A1 (en) 2019-03-20 2020-09-23 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk Onderzoek TNO Treatment of biomass with vinasse
WO2020188088A1 (en) 2019-03-20 2020-09-24 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Treatment of biomass with vinasse
EP3782725A1 (en) 2019-08-21 2021-02-24 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk Onderzoek TNO Reactor for the hydrothermal treatment of biomass
WO2021032842A1 (en) 2019-08-21 2021-02-25 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Reactor for the hydrothermal treatment of biomass
EP4095219A1 (en) 2021-05-26 2022-11-30 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Hydrothermal treatment of biomass
WO2022248653A1 (en) 2021-05-26 2022-12-01 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Hydrothermal treatment of biomass

Also Published As

Publication number Publication date
WO2005056723A8 (en) 2006-05-18
NL1025027C2 (en) 2005-06-21

Similar Documents

Publication Publication Date Title
WO2005056723A1 (en) Method and system for the torrefaction of raw materials
US8203024B2 (en) Torrefaction systems and methods including catalytic oxidation and/or reuse of combustion gases directly in a torrefaction reactor, cooler, and/or dryer/preheater
EP2430122B1 (en) A method for the thermal treatment of biomass in connection with a boiler plant
US4198378A (en) Process for removing CO2, H2 S and other gaseous impurities from gaseous mixtures
HU185421B (en) Process and apparatus for producing furfurol from plant materials
AU2010203110A1 (en) Method and System for the Torrefaction of Lignocellulosic Material
US20200332375A1 (en) Method and system for processing lignocellulose material
US20140202073A1 (en) Torrefaction systems and methods including catalytic oxidation and/or reuse of combustion gases directly in a torrefaction reactor, cooler, and/or dryer/preheater
CS217969B2 (en) Method of cleaning the operation condensate from the wo
CA2679742C (en) Volatile organic compounds reduction in ethanol plants
RU2425796C2 (en) Generation of steam at reforming with steam
HU205775B (en) Process and equipment for converting burnable impurities and wastes into pure energy and usable product
WO2004020331A1 (en) Method of recovering hydrogen from organic waste
US20160348006A1 (en) Methods for biomass torrefaction with carbon dioxide capture
EP2806016A1 (en) Method for conducting a biomass torrefaction process, installation for conducting biomass process, torrified biomass and a method for puryfying flue gases from torrefaction process
US20240018435A1 (en) Co shift unit for the conversion of solid waste into syngas
RU2259385C1 (en) Peat processing method
EP3992268B1 (en) Conversion of solid waste into syngas and hydrogen
JP3768365B2 (en) Sludge heat treatment apparatus and method for reforming produced oil
CZ20004560A3 (en) Liquefaction process of solid organic materials
Kaebernick 18 ENERGY CONVERSION AND RECYCLING

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
CFP Corrected version of a pamphlet front page
CR1 Correction of entry in section i

Free format text: IN PCT GAZETTE 25/2005 UNDER (71) THE ADDRESS SHOULD READ "WESTERDUINWEG 3, NL-1755 LE PETTEN"; UNDER (72, 75) THE ADDRESS OF "BERGMAN, PETER, CHRISTIAAN, ALBERT" SHOULD READ "HOUTENDIJK 20 2A, NL-1871 GN SCHOORL"; UNDER (72, 75) THE ADDRESS OF "ZWART, TOBIN, WILLEM, RUDOLF" SHOULD READ "SPOORSTRAAT 74, NL-1815 BM ALKMAAR"; UNDER (72, 75) THE NAME OF "KIEL, JACOB, HENDRIK, ARNOLD" SHOULD READ "KIEL, JACOB, HENDRIK, ARNOLD"

DPEN Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase