EP2864454A1 - Procédé et dispositif pour accroître le pouvoir calorifique d'un flux de matière contenant du carbone - Google Patents

Procédé et dispositif pour accroître le pouvoir calorifique d'un flux de matière contenant du carbone

Info

Publication number
EP2864454A1
EP2864454A1 EP13730218.8A EP13730218A EP2864454A1 EP 2864454 A1 EP2864454 A1 EP 2864454A1 EP 13730218 A EP13730218 A EP 13730218A EP 2864454 A1 EP2864454 A1 EP 2864454A1
Authority
EP
European Patent Office
Prior art keywords
reactor
stream
hot gas
exhaust gas
thermal treatment
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Withdrawn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
EP13730218.8A
Other languages
German (de)
English (en)
Inventor
Karl Lampe
Richard Erpelding
Jürgen DENKER
Meike Dietrich
Dirk Schefer
Werner Brosowski
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp Industrial Solutions AG
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 ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp Industrial Solutions AG
Publication of EP2864454A1 publication Critical patent/EP2864454A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/44—Burning; Melting
    • C04B7/4407—Treatment or selection of the fuel therefor, e.g. use of hazardous waste as secondary fuel ; Use of particular energy sources, e.g. waste hot gases from other processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/47—Cooling ; Waste heat management
    • C04B7/475—Cooling ; Waste heat management using the waste heat, e.g. of the cooled clinker, in an other way than by simple heat exchange in the cement production line, e.g. for generating steam
    • 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
    • C10B21/00—Heating of coke ovens with combustible gases
    • 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
    • C10L5/08—Methods of shaping, e.g. pelletizing or briquetting without the aid of extraneous 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
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • C10L5/447—Carbonized vegetable substances, e.g. charcoal, or produced by hydrothermal carbonization of biomass
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/08—Treating solid fuels to improve their combustion by heat treatments, e.g. calcining
    • C10L9/083—Torrefaction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • 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
    • C10L2200/00—Components of fuel compositions
    • C10L2200/04—Organic compounds
    • C10L2200/0461—Fractions defined by their origin
    • C10L2200/0469—Renewables or materials of biological origin
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/06—Heat exchange, direct or indirect
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/08—Drying or removing water
    • 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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods

Definitions

  • the invention relates to a method and a system for increasing the calorific value of a carbon-containing material stream, preferably a stream of renewable raw materials, wherein the stream is brought into direct contact in a reactor with at least one oxygen-poor, inert hot gas stream.
  • thermal treatment processes such as cement clinker and / or Kalkbrenn- method
  • pyrometallurgical processes and / or processes for power generation and / or oil extraction are sometimes required large amounts of fuel, mostly fossil fuels are used.
  • the operators of such plants aim to replace at least part of fossil fuels with substitute fuels, in particular C0 2 -neutral biomass.
  • US Pat. No. 7,434,332 B2 discloses the use of biomass as a fuel in cement production, where the moist biomass is brought into direct contact with the exhaust air of the cooler for drying.
  • US Pat. No. 7,461,466 B2 describes an indirect drying process of moist biomass by means of the clinker exhaust air, in order subsequently to use the dried biomass as fuel in the cement production process.
  • Torrefaction is the thermal treatment of biomass under low-oxygen conditions at low temperatures of 240 to 320 ° C by pyrolytic decomposition.
  • WO 2012/007574 describes such a method in which a carbon-containing material stream is dried and torrefied in a multiple-hearth furnace, wherein a drying zone through which flows a drying zone and a second hot gas stream through which a Torrefiz michszone are provided.
  • a Torrefizleitersgasstrom discharged via an outlet of the Torrefiz michtechnikszone becomes then burned in a combustion unit and heated.
  • the resulting exhaust gas is used in a heat exchanger for heating the drying gas flow, wherein the hot exhaust gas flow of the combustion unit cools to the Torrefizéesstemperatur and is then returned to the Torrefiztechnikszone.
  • the material flow occurs both in the
  • Drying zone and in the Torrefizleiterszone with the respective oxygen-poor, inert hot gas stream in direct contact ensures a much more efficient heat transfer compared to an indirect heating.
  • torrefaction is preferably possible with an oxygen-poor and inert hot gas stream, otherwise unwanted uncontrollable exothermic reactions would occur in the torrefaction zone.
  • DE 10 2009 053 059 A1 discloses an apparatus and a method for producing a fine-grained fuel from solid or pasty energy raw materials by torrefaction and comminution. Furthermore, the co-gasification of biomass and coal is sought in a Flugstromvergaser, wherein the exhaust gas of the torrefaction is fed to the gasification and exhaust gas of the gasification is used in Torrefizêt.
  • the invention is based on the object, the method and the system for increasing the calorific value of a carbonaceous material stream, preferably one
  • the stream is brought into direct contact in a reactor with at least one oxygen-poor, inert hot gas stream, the hot gas stream to at least 50%, preferably at least 80%, by Exhaust gas from a process for the thermal treatment of cement raw meal and / or lime and / or an ore is formed, wherein at least part of a preheater exhaust gas is used to preheat the cement raw meal and / or lime and / or ore as the hot gas stream.
  • An oxygen-lean, inert hot gas stream in the sense of the invention is understood as meaning a hot gas stream which has an oxygen concentration of ⁇ 8%, preferably ⁇ 6%.
  • the oxygen limit concentration for wood and other biomass is well below and prevents an oxidizing reaction of the biogenic components.
  • the thermal treatment of biomass under these conditions leads to a release of volatile components, which can not further oxidize and thus do not require additional heat input into the process zone.
  • a further increase in efficiency results when the method for increasing the calorific value of a carbonaceous stream with the thermal treatment process is coupled not only in terms of providing the hot gas, but also in the reverse direction by the treated carbonaceous material flow in the reactor as a solid fuel in the thermal treatment process is used and / or an exhaust gas of the reactor is supplied to the thermal treatment process as gaseous fuel.
  • Hot gases in the sense of the application are exhaust gases from the process for the thermal treatment of cement raw meal and / or lime and / or ore, which have at least a temperature> 200 ° C and a maximum oxygen concentration of 8%, preferably less than 6%. Exhaust gases from these thermal processes with temperatures above 400 ° C can be cooled to the required temperature with colder low-oxygen exhaust streams, which may possibly also originate from the circuits of Torrefiz michmaschinesreas.
  • the hot gas stream is preferably introduced into the reactor at a temperature of less than 400 ° C and an oxygen content of less than 8%.
  • the hot gas stream is used for drying and / or Torrefiz réelle the material flow in the reactor.
  • an emerging during the drying of exhaust gas from the drying area can be used for water extraction.
  • a Torrefikat resulting in the torrefaction can be cooled and a resulting during the cooling radiator exhaust gas can be used as a hot gas stream for drying the material flow.
  • a Torrefikat resulting in Torrefizleiter can hot milled and / or briquetted, and then used as a solid fuel. Furthermore, it is conceivable that in the Torrefiz réelle biochar is generated, which is used as a reducing agent in a pyrometallurgical process. In addition, at least a portion of an exhaust gas derived from the reactor may be utilized to recover an organic acid by supplying the exhaust gas to a condenser and / or a rectification column. It is also conceivable that a Torrefikat resulting in Torrefikat hot or cold grinding an entrainment gasifier or non-comminuted a fluidized bed gasifier for the production of combustible gases is supplied.
  • the invention further relates to a plant for the thermal treatment of cement raw material, limestone or ore and to increase the calorific value of a carbonaceous material stream with a preheater for preheating and / or calcining cement raw material, limestone or ore, and a reactor in which the material flow with at least one oxygen-lean, inert hot gas stream is brought into direct contact, wherein the preheater is in communication with the reactor to supply preheater exhaust gases occurring in the preheater as a hot gas stream to the reactor.
  • the reactor may in particular comprise a drying zone and a Torrefiz istszone, wherein the reactor is designed for example as a multi-stage furnace.
  • the reactor for the discharge of exhaust gases formed in the reactor to an exhaust pipe, which is connected to the plant for thermal treatment.
  • Fig. 1 is a block diagram for explaining the method according to the invention.
  • Fig. 2 is a block diagram of a plant for the thermal treatment of cement raw material, limestone or ore and a system for increasing the calorific value of a carbonaceous material flow.
  • a reactor for increasing the calorific value of a carbonaceous stream 2 preferably a stream of renewable resources.
  • This reactor is designed, for example, as a multi-level oven with at least one upper and one lower process space, the upper being designed as a drying zone 1a and the lower as a torrefying zone 1b.
  • the drying zone la and / or the Torrefiz istszone lb each consist of a plurality of superimposed stoves.
  • a means of transport for example Krählarme and Krählzähne be used, which rotate about a central shaft.
  • a mechanical transfer device for the transfer of the dried, carbonaceous material flow can be provided, which is preferably gas-tight, in order to prevent mixing of the two atmospheres.
  • the carbonaceous stream 2 is fed to the drying zone la and, if appropriate, previously pretreated in a mill or press 3. In the drying zone, the carbonaceous stream 2 comes into direct contact with an oxygen-poor, inert first hot gas stream 4 and is thereby dried.
  • the temperature of the hot gas stream 4 is suitably in the range of 150 ° to 400 ° C, preferably in the range of 200 ° C to 300 ° C.
  • the oxygen content is preferably less than 8%.
  • the hot gas stream 4 absorbs the moisture of the stream 2 and is discharged as exhaust 4 'from the drying zone la and can then, for example, a condenser 5 for the recovery of water or the thermal treatment process 7 réelle- or discharged directly through a chimney 19.
  • the hot gas stream 4 is formed by an exhaust gas of a thermal treatment process 7, which is taken there at a location which meets the desired properties in terms of oxygen content and temperature.
  • a thermal treatment process 7 may be, for example, a cement clinker and / or lime burning process, a pyrometallurgical process and / or a process for power generation and / or oil recovery.
  • the dried in the drying zone la through the hot gas stream 4 stream 2 then passes into the Torrefiz istszone lb, in which it is brought into direct contact with an oxygen-poor, inert second hot gas stream 6.
  • the temperature of the second hot gas stream 6 is usually higher and is preferably in the range of 250 ° to 400 ° C and causes the torrefaction of the carbonaceous, dried material stream 2.
  • the second hot gas stream 6 is removed from the thermal treatment process 7 and can by admixing other exhaust gas streams, eg from the Torrefiz michsRIS itself, be adapted to the required properties.
  • the two hot gas streams 4, 6 for the reactor 1 to at least 50%, preferably at least 80%, formed by an exhaust gas of the thermal treatment process 7.
  • the carbonaceous material flow is converted into a Torrefikat 8, which can be used as a solid fuel in the thermal treatment process 7.
  • the Torrefikat 8 can be cooled in a cooler 9, wherein a resulting cooler exhaust gas 10 can be used at least partially as a first hot gas stream 4 in the drying zone la for drying the material flow 2.
  • the Torrefikat 8 could also be milled without cooling in a mill or press 11 hot and / or briquetted before it is used in the thermal treatment process 7. It is also possible to temporarily store the Torrefikat 8 in the cooled, ground or briquetted state in a silo 12.
  • an exhaust gas 13 which can be used as a gaseous fuel in the thermal treatment process 7.
  • the combustible Torrefiz istsgas 13 is supplied to the thermal treatment process 7 either directly or pre-burned by means of a burner 18 and fed as hot exhaust gas in the treatment process 7.
  • at least a portion of the exhaust gas 13 may be supplied to a condenser 14 for recovery of acid and / or salt.
  • FIG. 2 shows an exemplary embodiment in which the thermal treatment process takes place in a plant 70 for the treatment of cement raw material, limestone or ore comprising at least one preheater 700, which is connected to the reactor 1 via a hot gas line 15, to preheater exhaust gases arising in the preheater feed as hot gas stream 4 to the reactor 1.
  • a hot gas line 17 also connects the preheater 700 with the Torrefiz istszone lb for supplying the second hot gas stream 6.
  • the reactor 1 is further connected to the discharge of the resulting exhaust gas 13 in the reactor with an exhaust pipe 16 to the system 70, for example, to a rotary kiln 701.
  • the plant 70 is designed as a cement production plant, the serves Rotary kiln 701 for burning the preheater 700 and a possibly present calciner preheated or precalcined cement raw material to cement clinker.
  • the preheater is usually operated with the exhaust gas of the rotary kiln, which is the ideal hot gas for the reactor 1 in terms of oxygen content and inert properties.
  • Temperatures of the two hot gases 4, 6 are adjusted by subtracting the preheater exhaust gas at exactly the location of the preheater 700 at which the preheater exhaust gas has the desired temperature or the exhaust preheater exhaust gas is still mixed with another gas stream.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Treatment Of Sludge (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Processing Of Solid Wastes (AREA)
  • Furnace Details (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

L'invention concerne un procédé pour accroître le pouvoir calorifique d'un flux de matière contenant du carbone, de préférence d'un flux de matière constitué de matières premières renouvelables. Dans ce procédé, le flux de matière est mis en contact directement avec au moins un flux de gaz inerte chaud dépourvu en oxygène dans un réacteur. Le flux de gaz chaud est constitué d'au moins 50%, de préférence d'au moins 80% des effluents gazeux d'un procédé de traitement thermique de farine crue de ciment et/ou de chaux et/ou d'un minerai. En tant que flux de gaz chaud l'on utilise au moins une partie des effluents gazeux d'un préchauffeur pour préchauffer la farine crue de ciment et/ou la chaux et/ou le minerai.
EP13730218.8A 2012-06-22 2013-06-17 Procédé et dispositif pour accroître le pouvoir calorifique d'un flux de matière contenant du carbone Withdrawn EP2864454A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012105428A DE102012105428A1 (de) 2012-06-22 2012-06-22 Verfahren und Anlage zur Erhöhung des Brennwerts eines kohlenstoffhaltigen Stoffstroms
PCT/EP2013/062534 WO2013189893A1 (fr) 2012-06-22 2013-06-17 Procédé et dispositif pour accroître le pouvoir calorifique d'un flux de matière contenant du carbone

Publications (1)

Publication Number Publication Date
EP2864454A1 true EP2864454A1 (fr) 2015-04-29

Family

ID=48669944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13730218.8A Withdrawn EP2864454A1 (fr) 2012-06-22 2013-06-17 Procédé et dispositif pour accroître le pouvoir calorifique d'un flux de matière contenant du carbone

Country Status (10)

Country Link
US (1) US20150336845A1 (fr)
EP (1) EP2864454A1 (fr)
AP (1) AP2015008187A0 (fr)
BR (1) BR112014032103B1 (fr)
CA (1) CA2877418C (fr)
DE (1) DE102012105428A1 (fr)
EA (1) EA029683B1 (fr)
UA (1) UA116350C2 (fr)
WO (1) WO2013189893A1 (fr)
ZA (1) ZA201500393B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014107969A1 (de) * 2014-06-05 2015-12-17 EnBW Energie Baden-Württemberg AG Verfahren zur Behandlung einer feuchten, heizwertarmen Masse
DE102016209037A1 (de) * 2016-05-24 2017-11-30 Thyssenkrupp Ag Anlagenverbund zur Herstellung mineralischer Baustoffe sowie ein Verfahren zum Betreiben des Anlagenverbundes

Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2005239907A (ja) * 2004-02-27 2005-09-08 Sumitomo Osaka Cement Co Ltd バイオマス半炭化燃料の製造方法及び装置

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BR112014032103B1 (pt) 2021-05-18
US20150336845A1 (en) 2015-11-26
UA116350C2 (uk) 2018-03-12
CA2877418C (fr) 2020-06-30
AP2015008187A0 (en) 2015-01-31
EA201590017A1 (ru) 2015-06-30
DE102012105428A1 (de) 2013-12-24
CA2877418A1 (fr) 2013-12-27
BR112014032103A2 (pt) 2017-06-27
ZA201500393B (en) 2016-09-28
EA029683B1 (ru) 2018-04-30

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