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WO2024188849A1 - Système combiné de production d'acier et procédé de fonctionnement du système combiné - Google Patents

Système combiné de production d'acier et procédé de fonctionnement du système combiné Download PDF

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Publication number
WO2024188849A1
WO2024188849A1 PCT/EP2024/056153 EP2024056153W WO2024188849A1 WO 2024188849 A1 WO2024188849 A1 WO 2024188849A1 EP 2024056153 W EP2024056153 W EP 2024056153W WO 2024188849 A1 WO2024188849 A1 WO 2024188849A1
Authority
WO
WIPO (PCT)
Prior art keywords
plant
hydrogen
line
production
separation
Prior art date
Application number
PCT/EP2024/056153
Other languages
German (de)
English (en)
Inventor
Nils Tenhumberg
Original Assignee
Thyssenkrupp Uhde Gmbh
Thyssenkrupp 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
Priority claimed from DE102023106559.9A external-priority patent/DE102023106559A1/de
Priority claimed from LU103088A external-priority patent/LU103088B1/de
Application filed by Thyssenkrupp Uhde Gmbh, Thyssenkrupp Ag filed Critical Thyssenkrupp Uhde Gmbh
Publication of WO2024188849A1 publication Critical patent/WO2024188849A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • 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
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/002—Evacuating and treating of exhaust gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or dust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/16—Hydrogen
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/24—Increasing the gas reduction potential of recycled exhaust gases by shift reactions
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/80—Interaction of exhaust gases produced during the manufacture of iron or steel with other processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2100/00—Exhaust gas
    • C21C2100/02—Treatment of the exhaust gas

Definitions

  • the invention relates to a plant network for steel production and a method for operating the plant network
  • the steel production plant network comprises a blast furnace for pig iron production, a converter steelworks for crude steel production, a network pipeline system for gases generated during pig iron production and/or crude steel production, and a chemical plant connected to the gas pipeline system.
  • chemical products can be produced from the supplied gas streams, each of which contains the components of the final product.
  • blast furnace top gas extracted from the blast furnace process which is also referred to as blast furnace top gas and/or blast furnace gas, often has a high nitrogen content in addition to the aforementioned components and can also contain impurities.
  • the amount of gas and the composition of the blast furnace top gas depend on the input materials and the operating mode and are subject to fluctuations.
  • blast furnace top gas contains 35 to 60 vol.% N 2 , 20 to 30 vol.% CO, 20 to 30 vol.% CO 2 and 2 to 15 vol.% H 2 .
  • Around 30 to 40% of the blast furnace top gas produced during pig iron production is usually used to heat the hot blast for the blast furnace process in blast furnace heaters; the remaining blast furnace top gas can also be used externally in other plant areas for heating purposes or to generate electricity.
  • REPLACEMENT BLADE 25% of the pig iron is added as a coolant. Lime is also added to form slag and alloying agents.
  • a converter gas is drawn off from the steel converter which has a high CO content and also contains nitrogen, hydrogen and C0 2 .
  • a typical converter gas composition has 50 to 70 vol.% CO, 10 to 20 vol.% N 2 , approx. 15 vol.% CO 2 and approx. 2 vol.% H 2 .
  • the converter gas is either flared or collected in modern steelworks and used for energy purposes.
  • the plant network can optionally be operated in conjunction with a coking plant.
  • the plant network described at the beginning also includes a coke oven plant in which coal is converted into coke through a coking process.
  • the coking of coal to coke produces coke oven gas which has a high hydrogen content and considerable amounts of CH 4 .
  • Coke oven gas typically contains 55 to 70 vol.% H 2 , 20 to 30 vol.% CH 4 , 5 to 10 vol.% N 2 and 5 to 10 vol.% CO.
  • the coke oven gas also contains proportions of CO 2 , NH 3 and H 2 S.
  • coke oven gas is used, for example, in various plant areas for heating purposes and in the power plant process to generate electricity.
  • the invention is based on the task of improving the sustainability of the overall process and the CO 2 balance, in particular the CO 2 emissions, and reducing the CO 2 footprint while at the same time enabling a stable, continuous and sustainable operation of plants.
  • the subject matter of the invention is a plant network for steel production comprising a blast furnace for pig iron production, a converter steelworks for crude steel production, a blast furnace gas line system for gases that arise during pig iron production, a composite line system for gases that arise during pig iron production and/or crude steel production, in particular comprising carbon-containing gases, for example CO-containing gases, CO 2 -containing gases or a combination thereof, a plant for hydrogen production, a chemical plant, wherein the chemical plant is connected to the composite line system, a hydrogen line for hydrogen-containing gases, in particular hydrogen, that arise during hydrogen production, wherein the hydrogen line is connected to the composite line system upstream of the chemical plant, a mixing device for hydrogen-containing gases, in particular hydrogen, that arise during hydrogen production and for gases that arise during pig iron production and/or crude steel production, wherein the mixing device is arranged downstream of the plant for hydrogen production and upstream of the chemical plant, in particular connected to the composite line system, for mixing gases arising during pig iron production and/or crude steel production with hydrogen-containing
  • a further subject of the invention is a method for operating a plant network for steel production, which comprises a blast furnace for pig iron production, a converter steelworks for crude steel production, a blast furnace gas pipeline system for gases arising during pig iron production, a composite pipeline system for gases arising during pig iron production and/or
  • REPLACEMENT BLADE (RULE 26) crude steel production in particular comprising carbon-containing gases, for example CO-containing gases, CO 2 -containing gases or a combination thereof, a plant for hydrogen production, a chemical plant, wherein the chemical plant is connected to the interconnected pipeline system, a hydrogen pipeline for hydrogen-containing gases, in particular hydrogen, which arise during hydrogen production, wherein the hydrogen pipeline is connected to the interconnected pipeline system upstream of the chemical plant in the direction of flow, a mixing device for hydrogen-containing gases, in particular hydrogen, which arise during hydrogen production and for gases which arise during pig iron production and/or crude steel production, wherein the mixing device is arranged downstream of the plant for hydrogen production and upstream of the chemical plant in the direction of flow, in particular connected to the interconnected pipeline system, in particular for mixing gases arising during pig iron production and/or crude steel production with hydrogen-containing gas arising during hydrogen production, in particular hydrogen, for example for setting a stoichiometric ratio of the gas composition in the interconnected pipeline system before input into the chemical plant, wherein
  • the present invention can be implemented in a plant network for steel production and in a method for operating a plant network.
  • the devices of the plant network can be present in a single and/or multiple design.
  • the plant network for steel production according to the invention has the advantages over conventional plant networks that the carbon monoxide contained in the blast furnace gas is converted into hydrogen by means of a water gas shift reaction and hydrogen or a hydrogen-rich gas can be provided from the steel mill gases for the conversion of carbon-containing gases, for example CO-containing gases, CO 2 -containing gases or a combination thereof, in the chemical plant and thus without the provision of external
  • the method according to the invention for operating a plant network has the advantages over conventional methods that, in addition to the production of hydrogen or a synthesis gas for conversion in the chemical plant, CO 2 is also separated, which can be converted in the chemical plant and/or otherwise utilized by means of carbon capture and utilization or carbon capture and storage, thus reducing CO 2 emissions.
  • chemical products can be produced from the gas flow rates supplied, each of which contains the components of the end product.
  • Chemical products can be, for example, methanol or higher alcohols or other hydrocarbon compounds.
  • the performance, in particular the output of the chemical plant, is regulated depending on the gas quantities supplied to these plants.
  • a major challenge for the chemical plant is the dynamic operation with changing plant loads, whereby the plant network according to the invention/the method according to the invention for operating the plant network enables the operation to be stabilized.
  • the operation with changing plant loads can be implemented in particular by the chemical plant having a plurality of small units connected in parallel, which are individually switched on or off depending on the available useful gas flow. For example, different chemical products can also be produced in one or more units.
  • a gas mixture consisting essentially of CO and/or CO 2 and H 2 must be provided, which contains the components carbon monoxide and/or carbon dioxide and hydrogen in the correct ratio.
  • Blast furnace top gas and/or converter gas and/or coke oven gas can be used as the hydrogen source, whereby additional hydrogen can be generated by converting the CO content by a water-gas shift reaction.
  • other hydrogen sources can also be used, in particular water electrolysis in
  • REPLACEMENT BLADE (RULE 26) Consideration should be given to the use of converter gas, for example, to provide CO. Blast furnace top gas and/or converter gas can serve as a source of CO 2 .
  • the plant for producing hydrogen is a water-gas shift reaction plant and/or a hydrogen separation membrane plant, in particular the hydrogen separation membrane plant is connected downstream of the water-gas shift reaction plant in the flow direction.
  • the plant for hydrogen production additionally comprises a first plant for CO 2 separation, in particular a CO 2 scrubber, wherein the first plant for CO 2 separation is connected upstream of the hydrogen separation membrane plant in the direction of flow, wherein the first plant for CO 2 separation is connected to the composite pipe system with a first CO 2 line, in particular the first CO 2 line is connected to the composite pipe system in the direction of flow upstream of the mixing device for hydrogen-containing gases.
  • the plant network additionally comprises a first CO 2 switch for CO 2 that is produced in the first plant for CO 2 separation, wherein the first CO 2 switch is connected to the first CO 2 line.
  • the plant network additionally comprises at least one controllable gas distribution device, in particular an operationally controllable gas distribution device for dividing the blast furnace gas flow rates supplied to the blast furnace gas line system and the interconnected line system, in particular the controllable gas distribution device is arranged between the blast furnace gas line system and the interconnected line system.
  • the blast furnace gas flow rate is preferably distributed with the gas distribution device between the blast furnace gas
  • REPLACEMENT BLADE (RULE 26) Line system and the composite line system, which, after chemical conversion of the gas flow rate of the blast furnace gas line system in the hydrogen production plant and mixing of the generated hydrogen material flow or hydrogen-containing material flow with the gas flow rate of the composite line system in the mixing device, a mixed gas with a stoichiometric mixing ratio of a dividend with the difference between the molar amounts of hydrogen as the minuend and carbon dioxide as the subtrahend and from a divisor with the total amount of the molar amounts of carbon monoxide and carbon dioxide in the range from 1 to 10, preferably in the range from 1.2 to 6, particularly preferably in the range from 1.8 to 4, very particularly preferably in the range from 1.9 to 3 is generated.
  • a mixing device is understood to mean a device which mixes gases and/or fluids with one another.
  • a mixing device can be selected from a group of a venturi nozzle, a mixing container, a mixing station, a static mixer, an ejector, a pipeline T-piece or a combination thereof.
  • the plant network additionally comprises a coke oven plant, wherein the coke oven plant is connected to the network piping system.
  • the plant network additionally comprises a biotechnology plant, wherein the biotechnology plant is connected to the network piping system, in particular in the flow direction downstream of the mixing device for hydrogen-containing gases is connected to the network piping system.
  • biochemical products can be produced from the supplied gas streams, each of which contains the components of the final product.
  • biochemical products can be produced from the gas streams supplied, each of which contains the components of the end product.
  • Biological products can be, for example, alcohols (ethanol, butanol), acetone or organic acids.
  • a biotechnology plant is a fermentation plant and possibly also a photobiological plant.
  • the plant network additionally comprises a second plant for CO 2 separation, in particular CO 2 scrubbing, wherein the blast furnace gas line system is connected to the second plant for CO 2 separation as an input line into the second plant for CO 2 separation and as an output line from the second plant for CO 2 separation, a second CO 2 line is connected downstream to the blast furnace gas line system and/or is connected to the composite line system, in particular the second CO 2 line is connected to the composite line system in the flow direction upstream of the mixing device for hydrogen-containing gases.
  • a second plant for CO 2 separation in particular CO 2 scrubbing
  • the plant network additionally comprises a second CO 2 switch for CO 2 which is produced in the second plant for CO 2 separation, wherein the second CO 2 switch is connected to the second CO 2 line.
  • the plant network additionally comprises at least one plant for blast furnace gas compression, in particular blast furnace gas compression plant, wherein the plant for blast furnace gas compression is connected to the blast furnace gas pipeline system.
  • the plant network additionally comprises a plant for blast furnace gas cleaning, in particular a blast furnace gas cleaning plant, wherein the at least one plant for blast furnace gas cleaning is connected to the blast furnace gas piping system.
  • a plant for blast furnace gas purification is understood to mean a plant which at least partially separates those components of the blast furnace gas which could have an unfavorable effect, particularly with regard to the efficiency, in subsequent process steps.
  • blast furnace gas purification is understood to mean a single- or multi-stage purification, particularly by mechanical sorting processes such as, for example, a separation selected from a group of density, particle size, particle inertia, surface wettability, magnetizability, electrical mobility, by absorptive processes, by catalytic processes or a combination thereof.
  • the plant network additionally comprises at least one plant for converter gas compression, in particular a converter gas compression plant.
  • the plant network additionally comprises a plant for converter gas cleaning, in particular a converter gas cleaning plant.
  • a converter gas purification system is understood to mean a system which at least partially separates those components of the converter gas which could have an unfavorable effect, particularly with regard to the efficiency, in subsequent process steps.
  • converter gas purification is understood to mean a single- or multi-stage purification, particularly by mechanical sorting processes such as, for example, a separation selected from a group of density, particle size, particle inertia, surface wettability, magnetizability, electrical mobility, by absorptive processes, by catalytic processes or a combination thereof.
  • the mixing device sets a mixed gas with a stoichiometric mixing ratio of a dividend with the difference between the molar amounts of hydrogen as the minuend and carbon dioxide as the subtrahend and a divisor with the sum of the molar amounts of carbon monoxide and carbon dioxide in the range from 1 to 10, preferably in the range from 1.2 to 6, particularly preferably in the range from 1.8 to 4, very particularly preferably in the range from 1.9 to 3.
  • the system network additionally comprises a first system for CO 2 separation, in particular CO 2 scrubbing, wherein the first system for CO 2 separation is connected upstream of the hydrogen separation membrane system in the direction of flow, wherein the first system for CO 2 separation is connected to the composite line system with a first CO 2 line, in particular the first CO 2 line is connected to the composite line system upstream of the mixing device for hydrogen-containing gases in the direction of flow and a first C0 2 switch for CO 2 that accrues in the first system for CO 2 separation, wherein the first C0 2 switch is connected to the first CO 2 line and/or a second system for CO 2 separation, in particular CO 2 scrubbing, wherein the blast furnace gas line system is connected to the second system for CO 2 separation as an input line into the second system for CO 2 -separation and as an output line from the second plant for CO 2 separation, a second CO 2 line is connected downstream to the blast furnace gas line system and/or is connected to the composite line system, in particular the second CO 2 line
  • REPLACEMENT BLADE REPLACEMENT BLADE (RULE 26) and a second CO 2 switch for CO 2 which accrues in the second plant for CO 2 separation, the second CO 2 switch being connected to the second CO 2 line, the mixing device and/or the first CO 2 switch and/or the second CO 2 switch being used to set a mixed gas for the chemical plant, in particular mixed gas from the composite line system, as input to the chemical plant with a molar fraction of the molar amount of CO 2 accrued in the mixing device and/or the first CO 2 switch and/or the second CO 2 switch, in particular separated CO 2 gas stream, in the range from 5 mol% to 45 mol%, preferably in the range from 8 mol% to 40 mol%, particularly preferably in the range from 15 mol% to 35 mol%, based on the molar amount of CO 2 and CO accruing from the blast furnace during pig iron production.
  • Fig. 1 is a highly simplified block diagram of a plant network for steel production according to the invention (the elements shown in dashed lines are optional embodiments).
  • FIG. 1 shows, according to an embodiment of the invention, a plant network 1 for steel production with a blast furnace 2 for pig iron production, a converter steelworks 3 for crude steel production, a blast furnace gas line system 4 for gases that arise during pig iron production, a network line system 5 for gases that arise during pig iron production and/or crude steel production, a plant for hydrogen production 6, and a chemical plant 7.
  • the chemical plant 7 is connected to the network line system 5.
  • a hydrogen line 8 for hydrogen-containing gases that arise during hydrogen production is connected to the network line system 5 upstream of the chemical plant 7.
  • a mixing device 9 for hydrogen-containing gases that arise during hydrogen production and for gases that arise during pig iron production and/or crude steel production is arranged downstream of the hydrogen production plant 6 and upstream of the chemical plant 7.
  • the blast furnace gas line system 4 is connected to the hydrogen production plant 6 as an input line to the hydrogen production plant 6 and the hydrogen line 8 is connected to the plant
  • REPLACEMENT BLADE (RULE 26) for hydrogen production 6 as an output line from the hydrogen production plant 6.
  • the hydrogen production plant 6 is shown as a water-gas shift reaction plant 10 and a hydrogen separation membrane plant 11, 11’.
  • a first CO 2 separation system 12 is arranged upstream of the hydrogen separation membrane system 11, 11' in the flow direction, wherein the first CO 2 separation system 12 is connected to the composite line system 5 by a first CO 2 line 13.
  • a first CO 2 switch 14 for CO 2 which is produced during the CO 2 separation 12 is connected to the first CO 2 line 13.
  • a controllable gas distribution device 15 for dividing the blast furnace gas flow rates supplied to the blast furnace gas line system 4 and the interconnected line system 5 is arranged between the blast furnace gas line system 4 and the interconnected line system 5.
  • a coke oven system 16 is connected to the interconnected line system 5.
  • a biotechnology plant 17 is connected to the interconnected pipeline system 5 downstream of the mixing device 9 for hydrogen-containing gases.
  • the blast furnace gas line system 4 is connected to a second CO 2 separation plant 18 as an input line into the second CO 2 separation plant 18.
  • a second CO 2 line 19 is connected downstream to the blast furnace gas line system 4 and the composite line system 5.
  • a second CO 2 switch 20 for CO 2 which is produced during the second CO 2 separation 19 is connected to the second CO 2 line 19.
  • a blast furnace gas compression plant 21 is connected to the blast furnace gas pipeline system 4.
  • a blast furnace gas cleaning system 22 is connected to the blast furnace gas piping system 4.
  • a converter gas compression plant 23 and a converter gas cleaning plant 24 are connected to the interconnected pipeline system 5 downstream of the converter steelworks 3 for crude steel production.
  • a plant network for steel production and a method for operating a plant network of the type described above can be used in the production of steel.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

La présente invention concerne un système combiné (1) de production d'acier, ledit système combiné comprenant : un haut-fourneau (2) servant à produire de la fonte brute ; une aciérie de convertisseur (3) servant à produire de l'acier brut ; un système de conduite de gaz de haut-fourneau (4) pour des gaz générés pendant la production de fonte brute ; un système de conduite combiné (5) pour des gaz générés pendant la production de fonte brute et/ou la production d'acier brut ; une installation de production d'hydrogène (6) ; une installation chimique (7) ; une conduite d'hydrogène (8) pour des gaz contenant de l'hydrogène générés pendant la production d'hydrogène, la conduite d'hydrogène (8) étant reliée au système de conduite combiné (5) en amont de l'installation chimique (7) dans le sens d'écoulement ; un dispositif de mélange (9) pour des gaz contenant de l'hydrogène, le dispositif de mélange (9) étant agencé en aval de l'installation de production d'hydrogène (6) et en amont de l'installation chimique (7) dans le sens d'écoulement, le système de conduite de gaz de haut-fourneau (4) étant relié à l'installation de production d'hydrogène (6) en tant que conduite d'entrée dans l'installation de production d'hydrogène (6) et la conduite d'hydrogène (8) étant reliée à l'installation de production d'hydrogène (6) en tant que conduite de sortie à partir de l'installation de production d'hydrogène (6).
PCT/EP2024/056153 2023-03-16 2024-03-08 Système combiné de production d'acier et procédé de fonctionnement du système combiné WO2024188849A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102023106559.9A DE102023106559A1 (de) 2023-03-16 2023-03-16 Anlagenverbund zur Stahlerzeugung sowie ein Verfahren zum Betreiben des Anlagenverbundes
DE102023106559.9 2023-03-16
LULU103088 2023-03-16
LU103088A LU103088B1 (de) 2023-03-16 2023-03-16 Anlagenverbund zur Stahlerzeugung sowie ein Verfahren zum Betreiben des Anlagenverbundes

Publications (1)

Publication Number Publication Date
WO2024188849A1 true WO2024188849A1 (fr) 2024-09-19

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Application Number Title Priority Date Filing Date
PCT/EP2024/056153 WO2024188849A1 (fr) 2023-03-16 2024-03-08 Système combiné de production d'acier et procédé de fonctionnement du système combiné

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WO (1) WO2024188849A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014114343A1 (de) * 2013-10-07 2015-04-09 Thyssenkrupp Industrial Solutions Ag Verfahren zur kombinierten Herstellung von Roheisen und eines auf Synthesegas basierenden organischen Chemieprodukts
EP2258996B1 (fr) * 2008-03-18 2016-04-27 JFE Steel Corporation Procédé de séparation de gaz de haut fourneau
US20210238700A1 (en) * 2018-06-07 2021-08-05 Thyssenkrupp Industrial Solutions Ag Plant complex for producing steel and a method for operating the plant complex

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2258996B1 (fr) * 2008-03-18 2016-04-27 JFE Steel Corporation Procédé de séparation de gaz de haut fourneau
DE102014114343A1 (de) * 2013-10-07 2015-04-09 Thyssenkrupp Industrial Solutions Ag Verfahren zur kombinierten Herstellung von Roheisen und eines auf Synthesegas basierenden organischen Chemieprodukts
US20210238700A1 (en) * 2018-06-07 2021-08-05 Thyssenkrupp Industrial Solutions Ag Plant complex for producing steel and a method for operating the plant complex

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