WO2020170265A1 - Système et processus pour produire un produit torréfié à partir de biomasse - Google Patents

Système et processus pour produire un produit torréfié à partir de biomasse Download PDF

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Publication number
WO2020170265A1
WO2020170265A1 PCT/IN2019/050758 IN2019050758W WO2020170265A1 WO 2020170265 A1 WO2020170265 A1 WO 2020170265A1 IN 2019050758 W IN2019050758 W IN 2019050758W WO 2020170265 A1 WO2020170265 A1 WO 2020170265A1
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WO
WIPO (PCT)
Prior art keywords
biomass
torrefaction
heating
feeding
inert gas
Prior art date
Application number
PCT/IN2019/050758
Other languages
English (en)
Inventor
Ajay Palta
Original Assignee
E3 Waste Solutions
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 E3 Waste Solutions filed Critical E3 Waste Solutions
Publication of WO2020170265A1 publication Critical patent/WO2020170265A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/08—Treating solid fuels to improve their combustion by heat treatments, e.g. calcining
    • C10L9/083—Torrefaction
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B1/00—Retorts
    • C10B1/10—Rotary 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
    • 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
    • C10B49/04—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 while moving the solid material to be treated
    • 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
    • C10L5/445—Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/02—Combustion or pyrolysis
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/06—Heat exchange, direct or indirect
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/10—Recycling of a stream within the process or apparatus to reuse elsewhere therein
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/28—Cutting, disintegrating, shredding or grinding
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/50—Screws or pistons for moving along solids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/58—Control or regulation of the fuel preparation of upgrading process
    • 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
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
    • 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
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/34—Other details of the shaped fuels, e.g. briquettes
    • C10L5/36—Shape
    • C10L5/363—Pellets or granulates
    • 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 generally relates to a torrefaction process, and more particularly for a system and process for making torrefied biomass products with improved quality.
  • biomass is one of the energy resources that has been receiving tremendous attention for so many years.
  • biomass would need to go through at least one type of heating process or pre-treatments to produce fuels with improved quality comparable with coal, technology for biomass to coal conversion is torrefaction.
  • An object of the present invention is to provide an improved process and system for producing torrefaction products, such as coals with improved quality.
  • An aspect of the present invention provides a process for producing torrefied product from biomass comprising agro- waste, forest waste or any biomass produced for the purpose.: preparing a predetermined amount of biomass ; reducing the size of said biomass ;feeding the reduced size wastes into a feeding chamber of a torrefaction system ; subjecting the waste to a torrefaction process that includes heating by depleted oxygen atmosphere in a controlled temperature range ; subjecting the torrefied biomass to a cooling process to avoid the risk of self ignition ; and palletizing the torrefied biomass.
  • the torrefaction process includes producing torrefied coal.
  • reducing the size of said biomass includes shredding said biomass to the size suitable for forced feeding chamber of the torrefaction system.
  • heating with inert gases includes gases from combustion of gases fuel like LPG, natural gas or any type of liquid fuel or gases from solid fuel combustion and partial combustion of biomass in depleted oxygen or combustion of gases produced in torrefection process.
  • gases fuel like LPG, natural gas or any type of liquid fuel or gases from solid fuel combustion and partial combustion of biomass in depleted oxygen or combustion of gases produced in torrefection process.
  • the inert gases include carbon dioxide, nitrogen and water vapours.
  • reducing the temperature in the quenching process includes in direct cooling through double jacketed conveying system or direct cooling by water based binder or else.
  • the present invention provides a torrefaction system to produce a torrefied product from biomass comprising:a biomass shredder for reducing the size of biomass feed; a feeding chamber; a conveyor connected to the feeding chamber; adapted for feeding the biomass into the chamber; a heating system adapted for heating the biomass with inert gas; a rotary drum reactor;a cyclone for release of gases;a recirculation duct with a blower;a gas analyzer for producer gases;a water cooled double jacketed screw conveyor with an injecting binder; and a pelletiser for torrefied product.
  • the system utilizes any fuel for heating, hence inert gases released by combustion of fuel or partial combustion of biomass in depleted oxygen.
  • inert gas further includes carbon dioxide, nitrogen and water vapours.
  • the system further includes a coal outlet screw.
  • the system further includes a control panel adapted to control the operational aspects of the system.
  • control panel provides control for temperature, material feeding and excess air.
  • FIG. 1 provides an exemplary arrangement of the system in accordance with an embodiment of the present invention.
  • FIG. 2 provides a flowchart illustrating the steps involved in the operational effect of the process and system of the present invention.
  • the present invention provides a process and system for producing a high quality torrefied product using biomass, and more particularly agriculture-based wastes.
  • the system in accordance with a preferred embodiment of the present invention comprises a shredder (not shown), a feeding module that includes a chamber (6), a conveyor accordingly adapted to be connected to the feeding module (6) such that wastes are directed into the chamber of the feeding module (6), a heating system (5) adapted for heating the waste facilitated by inert gas, a rotary drum torrefaction reactor (3), a cyclone (7) adapted accordingly to separate cooled torrefied waste from the inert gas for further processing, a producer gas recirculating duct (8) for re-directing gas from quenching process to the heating system, a gas analyser (not shown), a double jacket for water cooling (2) and a pelletiser in the form of outlet screw for torrefied coal (1).
  • the system utilises liquid or gaseous fuel, and the
  • the heating system (5) includes a burner, a blower, air regulator and air valves.
  • the burner of required capacity may be configured to operate automatically based on predetermined control parameters.
  • the burner is fitted with a PCB for managing the burner, a flame detector, ignition transformer and ignition electrode, automatic valves, air pressure switch, gas pressure switch, ignition and sensing leads.
  • heating is conducted with inert gases include gases from combustion of gaseous or liquid fuels or partial combustion of biomass or combustion of gases produced in torrefection reaction - the latter also referred herein as producer gas.
  • the air control valves operate with servo motor with PID and configured based on temperature-sensing, while the air gas ratio regulator is adapted to maintain proper ratio of air and gas associated to the torrefaction process and system.
  • the system further includes a control panel (not shown) accordingly configured for operators to control predetermined parameters of the torrefaction process.
  • the parameters include, but not limiting to: temperature, material feeding and excess air.
  • the control panel is further configured to control the burner and blower of the heating system, reactor’s switching and interlocking, biomass/waste feeding rate, speed of rotary drum, combustion air and producer gas, cooling pump temperature sensing and gas analyser.
  • a control module may comprises of logic controllers and discrete PID controllers to enable communication with all units/components of the system.
  • the module is configured to enable control and setting of parameters that can optimise the torrefied coal production. Understandably, the module is further configured to be able to receive, generate, process, and send control signals to all units, as well as cater safety features in occurrence of error whereby for safety, the control panel notifies the operator of any error by means of light indicator or audio alarm.
  • the temperature control may be assisted by PID and servo motor, a sensor as well as a pot meter for position adjustment. Similarly, material feeding, and excess air control may be facilitated by PID control mechanism. [0026] A system incorporating the method in accordance with an embodiment of the present invention will now be described with reference to a flowchart depicted in FIG. 2.
  • the process comprises:preparing a predetermined amount of biomass/waste (S101);reducing the size of said biomass/waste (S102);feeding the reduced size biomass into a feeding chamber of a torref action system (SI 03); subjecting the waste to a torrefaction process that includes heating by free oxygen gas in a controlled temperature range (S104);subjecting the torrefied biomass to a quenching process reduce the temperature (S105); and palletizing the torrefied biomass (S106).
  • a predetermined amount of biomass/waste S101
  • SI 03 torref action system
  • SI 03 torrefaction process that includes heating by free oxygen gas in a controlled temperature range
  • S105 quenching process reduce the temperature
  • S106 palletizing the torrefied biomass
  • Reducing the size of said agricultural-based waste includes shredding said waste suitable for forced feeding chamber of the torrefaction system.
  • the quenching process plays a significant role in preventing the torrefied biomass/waste from self- ignition which is one of the primary challenges faced by current systems, whereby reducing the temperature in the quenching process includes quenching in binder and passing through water cooled double jacketed screw conveyor.
  • the complete system includes electronic control system which is configured and expanded to communicate with and supply power to the units/components of present invention and other mechanisms of the system to realise the full functionality of the present invention.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

L'invention concerne un système et un processus pour produire un produit torréfié à partir de biomasse, le système comprenant un broyeur de biomasse pour réduire la taille de la charge de biomasse; une chambre d'alimentation pour recevoir la biomasse; un transporteur relié à la chambre d'alimentation; conçu pour introduire la biomasse dans la chambre; un système de chauffage conçu pour chauffer la biomasse avec un gaz inerte à l'intérieur de la chambre; un réacteur à tambour rotatif pour conduire la torréfaction; un cyclone pour la libération de gaz et séparer un gaz inerte de la biomasse; un conduit de recirculation pour rediriger le gaz inerte vers le système de chauffage comprenant une soufflante; un analyseur de gaz pour les gaz de production libérés du processus de combustion pendant le chauffage; un transporteur à vis double enveloppe refroidi à l'eau avec un liant d'injection; et un granulateur pour produit torréfié. Un processus est également décrit ici.
PCT/IN2019/050758 2019-02-19 2019-10-11 Système et processus pour produire un produit torréfié à partir de biomasse WO2020170265A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201911006469 2019-02-19
IN201911006469 2019-02-19

Publications (1)

Publication Number Publication Date
WO2020170265A1 true WO2020170265A1 (fr) 2020-08-27

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011123025A1 (fr) * 2010-03-29 2011-10-06 Torkapparater-Termisk Processutrustning Ab Procédé et appareil de torréfaction d'un produit de la biomasse
US20130055631A1 (en) * 2010-04-20 2013-03-07 River Basin Energy, Inc. Post torrefaction biomass pelletization
US20130232863A1 (en) * 2009-08-19 2013-09-12 Andritz Technology And Asset Management Gmbh Method and system for the torrefaction of lignocellulosic material
WO2018213474A1 (fr) * 2017-05-16 2018-11-22 Massachusetts Institute Of Technology Réacteurs de conversion de biomasse et systèmes et procédés associés

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130232863A1 (en) * 2009-08-19 2013-09-12 Andritz Technology And Asset Management Gmbh Method and system for the torrefaction of lignocellulosic material
WO2011123025A1 (fr) * 2010-03-29 2011-10-06 Torkapparater-Termisk Processutrustning Ab Procédé et appareil de torréfaction d'un produit de la biomasse
US20130055631A1 (en) * 2010-04-20 2013-03-07 River Basin Energy, Inc. Post torrefaction biomass pelletization
WO2018213474A1 (fr) * 2017-05-16 2018-11-22 Massachusetts Institute Of Technology Réacteurs de conversion de biomasse et systèmes et procédés associés

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