EP2895629A1 - Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagen - Google Patents
Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagenInfo
- Publication number
- EP2895629A1 EP2895629A1 EP13762102.5A EP13762102A EP2895629A1 EP 2895629 A1 EP2895629 A1 EP 2895629A1 EP 13762102 A EP13762102 A EP 13762102A EP 2895629 A1 EP2895629 A1 EP 2895629A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- reduction
- unit
- enriched
- reducing
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000010438 heat treatment Methods 0.000 title claims abstract description 20
- 239000007789 gas Substances 0.000 title claims description 56
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 36
- 239000003345 natural gas Substances 0.000 claims description 16
- 239000000571 coke Substances 0.000 claims description 6
- 238000011946 reduction process Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- 239000000969 carrier Substances 0.000 claims description 3
- 239000002028 Biomass Substances 0.000 claims 3
- 239000000203 mixture Substances 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000011156 evaluation Methods 0.000 claims 1
- 108090000623 proteins and genes Proteins 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 239000002803 fossil fuel Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 230000001172 regenerating effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- 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
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/004—Making spongy iron or liquid steel, by direct processes in a continuous way by reduction from ores
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0086—Conditioning, transformation of reduced iron ores
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
-
- 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
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Definitions
- the invention relates to a method for heating process gases for direct reduction plants
- smelting reduction processes in which the melting process, the reduction gas production and the direct reduction are combined with one another, for example processes of the brands COREX, FINEX, HiSmelt or HiSarna.
- Iron sponge in the form of HDRI, CDRI or HBI are usually further processed in electric furnace, which is extremely energy-intensive.
- the direct reduction is carried out by means of hydrogen and carbon monoxide from natural gas (methane) and possibly synthesis gas and coke oven gas.
- methane is first reacted according to the following reaction:
- This process thus also emits CO 2 .
- WO 2011/018124 discloses methods and systems for providing storable and transportable carbon-based energy carriers using carbon dioxide and using regenerative electrical energy and fossil fuels. In this case, a share of regenerative methanol and a proportion of methanol produced by means of non-regenerative electrical energy and / or direct reduction and / or partial oxidation and / or reforming.
- the reduction process can be represented by the following equation:
- the object of the invention is to provide a method for heating the process gases in direct reduction plants, with which the heating of the process gases is adapted and optimized better and more flexibly to ei ⁇ nen the energy requirement and the energy provided overall process.
- the flexibility of the heating process according to the invention is converted to electric heating of the reduction gas or the Re ⁇ formers
- the electrical energy can be generated from renewable sources and thus be substituted fossil fuels.
- FIG. 1 shows by way of example the HYL-Energiron method according to FIG.
- FIG. 2 shows the HYL-Energiron method according to the invention with an electrical heating of the process gas heating
- FIG. 3 is a highly schematic representation of the MIDREX method
- FIG. 4 is a highly schematic diagram of an expensive and complex CO 2 -improved MIDREX process according to the state of the art with a CC 2 removal unit (eg VPSA-Vacuum-Pressure Swing Adsorption).
- the HYL process is in Figure 2 by way of example using a Ka ⁇ capacity of two million tonnes of Direct Reduced Iron (DRI) per year, including an electric arc furnace (EAF, Electro Are Furnace) shown.
- the process gas from the shaft, in which the iron ore is reduced is first passed through a Wasserab ⁇ separation and then a CC> 2 separation.
- the circulating gas volume flow here is about 500,000 m 3 per hour ⁇ de.
- FIG. 3 shows the MIDREX method, in which the exhaust gas in the reduction shaft is likewise removed and divided into a process gas stream and a heating gas stream.
- the process gas stream is passed through a process gas compressor until natural gas is supplied to it, in particular at a plant which is optionally designed for 2 million tonnes of reduced iron per year, an amount of about 63,000 m 3 natural gas per hour.
- This process gas passes through a heat exchanger, it is preheated to 600 ° C with the exhaust gases from the reformer and then passes through the reformer and is heated to 980 ° C and is fed as a process gas with the addition of wei ⁇ terem natural gas and oxygen to the shaft again.
- the heating gas is also removed from the shaft furnace, enriched with natural gas and added to the reformer together with preheated combustion air.
- the total required Men ⁇ ge of natural gas is about 68,200 m 3 per hour, with about 5.100 m 3 per stun ⁇ de exhaust gas by 52 megawatts of electric power can be compensated for by an electric heater of the reformer. This can save on the one hand 7.5% CO 2 per ton of reduced iron ore.
- the process is flexible and ser ⁇ ge ⁇ more precisely controlled by the electrical heating.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Combustion & Propulsion (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Furnace Details (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012108631 | 2012-09-14 | ||
| DE201210109284 DE102012109284A1 (de) | 2012-09-14 | 2012-09-28 | Verfahren zum Erzeugen von Stahl und Verfahren zum Speichern diskontinuierlich anfallender Energie |
| DE102013104002.0A DE102013104002A1 (de) | 2013-04-19 | 2013-04-19 | Verfahren zum Aufheizen von Prozessgasen für Direktreduktionsanlagen |
| PCT/EP2013/068743 WO2014040997A1 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2895629A1 true EP2895629A1 (de) | 2015-07-22 |
Family
ID=50277660
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13762102.5A Withdrawn EP2895629A1 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagen |
| EP13763210.5A Active EP2895630B1 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum speichern diskontinuierlich anfallender energie beim reduzieren von eisenerz |
| EP13765312.7A Revoked EP2895631B1 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum erzeugen von stahl mit regenerativer energie |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13763210.5A Active EP2895630B1 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum speichern diskontinuierlich anfallender energie beim reduzieren von eisenerz |
| EP13765312.7A Revoked EP2895631B1 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum erzeugen von stahl mit regenerativer energie |
Country Status (8)
| Country | Link |
|---|---|
| US (3) | US20150259760A1 (enExample) |
| EP (3) | EP2895629A1 (enExample) |
| JP (3) | JP2015534604A (enExample) |
| KR (3) | KR20150065728A (enExample) |
| CN (3) | CN104662176A (enExample) |
| ES (2) | ES2952386T3 (enExample) |
| FI (1) | FI2895630T3 (enExample) |
| WO (3) | WO2014040997A1 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2771127C1 (ru) * | 2018-12-17 | 2022-04-26 | Прайметалз Текнолоджиз Аустриа ГмбХ | Способ и устройство для прямого восстановления электрически нагретым восстановительным газом |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2952386T3 (es) | 2012-09-14 | 2023-10-31 | Voestalpine Stahl Gmbh | Procedimiento de almacenamiento de energía discontinua durante la reducción del mineral de hierro |
| CN107058749A (zh) * | 2016-12-27 | 2017-08-18 | 武汉钢铁有限公司 | 利用竖炉脱除瓦斯泥中锌与铅的装置及其方法 |
| EP3581663A1 (de) | 2018-06-12 | 2019-12-18 | Primetals Technologies Austria GmbH | Herstellung von karburiertem eisenschwamm mittels wasserstoffbasierter direktreduktion |
| DE102018211104A1 (de) * | 2018-07-05 | 2020-01-09 | Thyssenkrupp Ag | Verfahren und Einrichtung zum Betrieb einer Produktionsanlage |
| CN111910036B (zh) * | 2019-05-10 | 2022-05-03 | 中冶长天国际工程有限责任公司 | 一种利用生物质还原钒钛磁铁矿联产高品质合成气的方法 |
| IT201900008019A1 (it) * | 2019-06-04 | 2020-12-04 | Tenova Spa | Metodo e sistema per la produzione di acciaio o di materiali fusi contenenti ferro a emissioni ridotte |
| MY196514A (en) | 2019-06-06 | 2023-04-18 | Midrex Technologies Inc | Direct Reduction Process Utilizing Hydrogen |
| US11952638B2 (en) * | 2019-09-27 | 2024-04-09 | Midrex Technologies, Inc. | Direct reduction process utilizing hydrogen |
| SE2030072A1 (en) * | 2020-03-10 | 2021-09-11 | Hybrit Development Ab | Methanol as hydrogen carier in H-DRI process |
| WO2021220555A1 (ja) * | 2020-04-27 | 2021-11-04 | Ｊｆｅスチール株式会社 | 製鉄設備および還元鉄の製造方法 |
| SE546651C2 (en) * | 2020-05-04 | 2025-01-07 | Hybrit Development Ab | Process for the production of carburized sponge iron |
| US12448889B2 (en) | 2020-05-20 | 2025-10-21 | Luossavaara-Kiirunavaara Ab | Raise caving method for mining deposits, and a mining infrastructure, monitoring system, machinery, control system and data medium therefor |
| DE102020116425A1 (de) | 2020-06-22 | 2021-12-23 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung von Rohstahl mit niedrigem N-Gehalt |
| IT202000015472A1 (it) * | 2020-06-26 | 2021-12-26 | Danieli Off Mecc | Impianto di riduzione diretta e relativo processo |
| EP3954786A1 (de) * | 2020-08-12 | 2022-02-16 | ThyssenKrupp Steel Europe AG | Verfahren zur herstellung von rohstahl und aggregat zu dessen herstellung |
| SE546002C2 (en) | 2020-10-22 | 2024-04-09 | Luossavaara Kiirunavaara Ab | A blasting system and a method of explosive material charging |
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| SE546026C2 (en) | 2020-10-22 | 2024-04-16 | Luossavaara Kiirunavaara Ab | Detonator support device and method of charging a blasthole |
| CN114525518B (zh) * | 2020-11-09 | 2023-01-31 | 中国石油大学(北京) | 一种利用可再生能源电的方法 |
| SE545311C2 (en) | 2020-11-25 | 2023-06-27 | Hybrit Development Ab | Process for the production of carburized sponge iron |
| SE546387C2 (en) * | 2021-01-22 | 2024-10-22 | Hybrit Development Ab | Arrangement and process for charging iron ore to, and/or discharging sponge iron from, a direct reduction shaft |
| SE2150180A1 (en) * | 2021-02-19 | 2022-08-20 | Luossavaara Kiirunavaara Ab | Metal oxide material reduction means |
| JP7533321B2 (ja) * | 2021-03-31 | 2024-08-14 | Ｊｆｅスチール株式会社 | 還元鉄の製造方法および還元鉄の製造装置 |
| JP2024522269A (ja) * | 2021-05-18 | 2024-06-13 | アルセロールミタル | 直接還元鉄を製造するための方法及びｄｒｉ製造設備 |
| US20240254576A1 (en) * | 2021-05-18 | 2024-08-01 | Arcelormittal | A method for manufacturing direct reduced iron |
| EP4341448B1 (en) * | 2021-05-18 | 2025-09-17 | ArcelorMittal | Method for manufacturing direct reduced iron and dri manufacturing equipment |
| WO2022248915A1 (en) * | 2021-05-26 | 2022-12-01 | Arcelormittal | A method for manufacturing direct reduced iron |
| SE545624C2 (en) * | 2021-06-11 | 2023-11-14 | Hybrit Development Ab | Process for the production of carburized sponge iron |
| KR20240011169A (ko) * | 2021-06-14 | 2024-01-25 | 제이에프이 스틸 가부시키가이샤 | 환원철의 제조 방법 |
| SE545625C2 (en) | 2021-07-07 | 2023-11-14 | Hybrit Development Ab | Iron briquettes |
| DE102021125784A1 (de) * | 2021-10-05 | 2022-04-21 | Thyssenkrupp Steel Europe Ag | Verfahren zum Betreiben eines Stahlwerks |
| EP4163402B1 (en) * | 2021-10-07 | 2025-08-27 | ArcelorMittal Texas HBI LLC | Induction heating of dri |
| DE102021128987A1 (de) | 2021-11-08 | 2023-05-11 | Rhm Rohstoff-Handelsgesellschaft Mbh | Verfahren zum Umschmelzen von Eisenschwamm und/oder von heißgepresstem Eisenschwamm sowie von Schrott zu Rohstahl in einem Konverter |
| EP4194569B1 (en) * | 2021-12-08 | 2024-07-31 | Doosan Lentjes GmbH | Method for handling particulate metal |
| WO2023111653A1 (en) * | 2021-12-16 | 2023-06-22 | Arcelormittal | Steelmaking method and associated network of plants |
| DE102022201918A1 (de) | 2022-02-24 | 2023-08-24 | Sms Group Gmbh | Hüttentechnische Produktionsanlage und Verfahren zu deren Betrieb |
| SE2250421A1 (en) | 2022-04-01 | 2023-10-02 | Luossavaara Kiirunavaara Ab | Method for producing steel and sponge iron manufacturing process |
| WO2024023563A1 (en) * | 2022-07-29 | 2024-02-01 | Arcelormittal | Method for manufacturing pig iron in a production line comprising an electrical smelting furnace |
| MA71591A (fr) * | 2022-07-29 | 2025-05-30 | Arcelormittal | Procédé pour la fabrication de fonte brute en fusion dans une unité de fusion électrique |
| EP4345175A1 (en) | 2022-09-30 | 2024-04-03 | HYBRIT Development AB | Direct reduced iron pellets and use thereof |
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- 2013-09-10 EP EP13762102.5A patent/EP2895629A1/de not_active Withdrawn
- 2013-09-10 KR KR1020157009633A patent/KR20150065728A/ko not_active Ceased
- 2013-09-10 WO PCT/EP2013/068743 patent/WO2014040997A1/de not_active Ceased
- 2013-09-10 WO PCT/EP2013/068727 patent/WO2014040990A2/de not_active Ceased
- 2013-09-10 KR KR1020157009638A patent/KR20150053809A/ko not_active Ceased
- 2013-09-10 KR KR1020157009624A patent/KR20150063075A/ko not_active Withdrawn
- 2013-09-10 CN CN201380047304.7A patent/CN104662176A/zh active Pending
- 2013-09-10 JP JP2015531541A patent/JP2015534604A/ja active Pending
- 2013-09-10 JP JP2015531542A patent/JP2015532948A/ja active Pending
- 2013-09-10 US US14/428,206 patent/US20150259760A1/en not_active Abandoned
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- 2013-09-10 EP EP13763210.5A patent/EP2895630B1/de active Active
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- 2013-09-10 JP JP2015531540A patent/JP2015529751A/ja active Pending
- 2013-09-10 EP EP13765312.7A patent/EP2895631B1/de not_active Revoked
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2771127C1 (ru) * | 2018-12-17 | 2022-04-26 | Прайметалз Текнолоджиз Аустриа ГмбХ | Способ и устройство для прямого восстановления электрически нагретым восстановительным газом |
| US12209293B2 (en) | 2018-12-17 | 2025-01-28 | Primetals Technologies Austria GmbH | Process and apparatus for direct reduction with electrically heated-up reduction gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104662177A (zh) | 2015-05-27 |
| US20150259759A1 (en) | 2015-09-17 |
| US20150259760A1 (en) | 2015-09-17 |
| KR20150065728A (ko) | 2015-06-15 |
| WO2014040989A3 (de) | 2014-06-12 |
| CN104662175A (zh) | 2015-05-27 |
| EP2895631A2 (de) | 2015-07-22 |
| WO2014040989A2 (de) | 2014-03-20 |
| EP2895630B1 (de) | 2023-06-07 |
| JP2015529751A (ja) | 2015-10-08 |
| ES2689779T3 (es) | 2018-11-15 |
| JP2015534604A (ja) | 2015-12-03 |
| JP2015532948A (ja) | 2015-11-16 |
| EP2895631B1 (de) | 2018-07-18 |
| ES2952386T3 (es) | 2023-10-31 |
| EP2895630A2 (de) | 2015-07-22 |
| WO2014040990A2 (de) | 2014-03-20 |
| US20150329931A1 (en) | 2015-11-19 |
| KR20150063075A (ko) | 2015-06-08 |
| KR20150053809A (ko) | 2015-05-18 |
| FI2895630T3 (en) | 2023-08-15 |
| CN104662176A (zh) | 2015-05-27 |
| WO2014040997A1 (de) | 2014-03-20 |
| WO2014040990A3 (de) | 2014-06-12 |
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