EP4039779A1 - Procédé et système de traitement de biomasse - Google Patents

Procédé et système de traitement de biomasse Download PDF

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Publication number
EP4039779A1
EP4039779A1 EP21205890.3A EP21205890A EP4039779A1 EP 4039779 A1 EP4039779 A1 EP 4039779A1 EP 21205890 A EP21205890 A EP 21205890A EP 4039779 A1 EP4039779 A1 EP 4039779A1
Authority
EP
European Patent Office
Prior art keywords
gas mixture
particulate metal
reactor
gasifier
biomass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP21205890.3A
Other languages
German (de)
English (en)
Inventor
Sebastian KRUSCH
Oguzhan Narin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Doosan Lentjes GmbH
Original Assignee
Doosan Lentjes GmbH
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 Doosan Lentjes GmbH filed Critical Doosan Lentjes GmbH
Priority to EP21205890.3A priority Critical patent/EP4039779A1/fr
Publication of EP4039779A1 publication Critical patent/EP4039779A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0916—Biomass

Definitions

  • the present invention relates to a method and a system for processing biomass.
  • the system comprises a gasifier for the gasification of biomass to a gas mixture.
  • the temperature of the gas mixture produced by the gasification is raised and an oxygen containing gas is added (such as air), wherein the energy of the following combustion reaction is used to supply thermal or electrical energy to an end user.
  • an oxygen containing gas such as air
  • Using the gas mixture as synthesis gas makes it necessary that a pipeline network is installed, for providing the synthesis gas from the gasifier to the chemical industry site.
  • gasifiers for biomass are often installed in a decentralized manner, it is a great effort to install such pipeline network.
  • the produced gas mixture may be stored in a pressurized state, which makes it necessary that the gas mixture is pressurized.
  • the object is in particular achieved with a method for processing biomass, comprising the following steps:
  • the present invention suggests to supply the gas mixture (or a fraction thereof) produced by the gasification of biomass (such as wood, energy crops or waste from forests, yards or farms) to solid particulate metal, so that the solid particulate metal reacts with the provided gas (in particular, a reduction rection between the metal comprising molecules - for example metal oxides - of the solid particulate metal with at least some of the gaseous components of the supplied gas occurs), while keeping its solid state.
  • the particulate metal may be embodied by particles (granulate, pellets) comprising or consisting of a metal (such as iron, zinc, copper or alkali metal, for example magnesium), in particular a metal in its oxidized state.
  • the particulate metal may be iron ore or iron ore pellets.
  • the particulate metal After the treatment with the gas, the particulate metal is still in particulate (particle, granulate, pellets) form.
  • the metal (molecules) of the particulate metal is in particular in its reduced state due to the treatment with the gas.
  • the thus treated (reduced) particulate metal can be stored and transported/conveyed in solid form which makes the handling much easier. Accordingly, the chemical energy of the gas mixture produced by the gasification of biomass can be stored as bulk material.
  • the treated (reduced) solid particulate metal can be used in an exothermic oxidation reaction, from which energy can be withdrawn.
  • the oxidation reaction can for example occur in a fluidized bed reactor, to which an oxygen containing gas (such as air) is supplied for fluidizing the treated solid particulate metal.
  • an oxygen containing gas such as air
  • a water vapor comprising gas may be supplied to the treated (reduced) solid particulate metal preferably in a fluidized bed reactor so that hydrogen can be withdrawn from the following rection.
  • the thus oxidized particulate metal may be further used in known processes.
  • the treated particulate metal (which has a higher quality than untreated particulate matter) can be used directly in known processes, thereby saving energy in the known process.
  • the gasifier for the gasification of biomass may be of the common type and can be embodied as moving bed gasifier, counter-current fixed bed gasifier, as co-current fixed bed gasifier, as fluidized bed gasifier or as entrained flow gasifier.
  • the reactor for treating the solid particulate metal may be of any type of reactor known for treating solid particulate matter with a gas.
  • the reactor may be embodied as fixed bed reactor, as fluidized bed reactor or as circulating fluidized bed reactor, in which the particulate metal is provided as particulate matter and to which the gas mixture (or a fraction thereof) is supplied as process gas.
  • the outlet of the gasifier is connected to the fluidizing bottom of the fluidized bed reactor such that in use the particulate metal in the fluidized bed reactor is fluidized by the supplied gas mixture. This way the contact time of the gas with the particulate metal can be enhanced and thereby the efficiency.
  • the gas mixture produced in the gasifier may be directly supplied (as a whole) to the reactor for treating the particulate metal. But, it is also possible that the gas mixture is withdrawn from the reactor and is treated (separated, distilled, fractionized) before it is supplied to the particulate metal in the reactor. Such a treatment unit would be arranged between the outlet of the gasifier and the inlet of the reactor. If necessary, storage vessels for the gas mixture o for a fraction of the gas mixture may be arranged between the outlet of the gasifier and the inlet of the reactor.
  • the gas mixture produced by the gasification of biomass comprises a high content of carbon monoxide and as a further component hydrogen.
  • the carbon monoxide and eventually the hydrogen react with the particulate metal within the reactor by a reduction reaction, so that the metal of the particulate metal is reduced. Accordingly, the carbon monoxide reacts with the particulate metal to (reduced) particulate metal and carbon dioxide.
  • the hydrogen reacts with the particulate metal to (reduced) particulate metal and water.
  • the whole process is carbon dioxide neutral.
  • the produced gas mixture may be treated (for example distilled), such that the gas supplied to the reactor consists mainly of carbon monoxide, wherein only unavoidable impurities may be present.
  • the system depicted in the figure comprises a gasifier 1, with a gas inlet 1.2 at its bottom and a biomass inlet 1.3 at its top.
  • the gasifier 1 for the gasification of biomass also comprises a gas mixture outlet 1.1.
  • the biomass supplied through the biomass inlet 1.3 is gasified within the gasifier 1, wherein the gases produced by the gasification of the biomass are withdrawn through the gas mixture outlet 1.1.
  • the system further comprises a treatment unit 3, which is connected to the gas mixture outlet 1.1.
  • the treatment unit 3 may be used to clean or distill the gases withdrawn from the gas mixture outlet 1.1.
  • the outlet of the treatment unit 3 is connected to a reactor 2 of the system.
  • the reactor 2 is embodied as fluidized bed reactor, wherein particulate metal can be supplied through a particulate metal inlet 2.2 into the reactor 2.
  • the gas mixture produced in the gasifier 1 and eventually treated in the treatment unit 3 may be supplied through a gas inlet 2.1 to a fluidizing bottom 2.5 of the reactor 2.
  • By supplying the gas through the gas inlet 2.1 the particulate metal within the reactor 2 is fluidized, wherein carbon monoxide and/or hydrogen of the supplied gas reduces the metal of the particulate metal.
  • the reduced particulate metal may be withdrawn through a particulate metal outlet 2.4, whereas the reaction gases may be withdrawn through a gas outlet 2.3 at the top of the reactor 2.
  • the chemical energy provided by the gas mixture produced in the gasifier 1 may be stored within the particulate metal treated in the reactor 2 and therefore in a solid state, wherein the whole process is CO2 neutral.
  • the treated (reduced) particulate metal may be supplied to an oxidation reactor, in which an oxygen containing gas may be supplied to the treated particulate metal, so that an exothermic reaction is started from which thermal energy can be withdrawn.
  • the treated (reduced) particulate metal my be supplied to an oxidation reactor, in which a water vapor containing gas may be supplied to the treated particulate metal, so that a reaction is started from which hydrogen can be withdrawn.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
EP21205890.3A 2021-11-02 2021-11-02 Procédé et système de traitement de biomasse Withdrawn EP4039779A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21205890.3A EP4039779A1 (fr) 2021-11-02 2021-11-02 Procédé et système de traitement de biomasse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21205890.3A EP4039779A1 (fr) 2021-11-02 2021-11-02 Procédé et système de traitement de biomasse

Publications (1)

Publication Number Publication Date
EP4039779A1 true EP4039779A1 (fr) 2022-08-10

Family

ID=78725221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21205890.3A Withdrawn EP4039779A1 (fr) 2021-11-02 2021-11-02 Procédé et système de traitement de biomasse

Country Status (1)

Country Link
EP (1) EP4039779A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260412A (en) * 1980-01-16 1981-04-07 Midrex Corporation Method of producing direct reduced iron with fluid bed coal gasification
US20090308204A1 (en) * 2006-07-21 2009-12-17 Corus Technology Bv Method and apparatus for reducing metalliferous material to a reduction product

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260412A (en) * 1980-01-16 1981-04-07 Midrex Corporation Method of producing direct reduced iron with fluid bed coal gasification
US20090308204A1 (en) * 2006-07-21 2009-12-17 Corus Technology Bv Method and apparatus for reducing metalliferous material to a reduction product

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
T. BUERGLER ET AL: "Biomass Gasification for DRI Production", LA REVUE DE METALLURGIE, 1 October 2009 (2009-10-01), pages 429 - 433, XP055584872, DOI: 10.1051/metal/2009075 *

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