WO2014040989A2 - Verfahren zum erzeugen von stahl - Google Patents
Verfahren zum erzeugen von stahl Download PDFInfo
- Publication number
- WO2014040989A2 WO2014040989A2 PCT/EP2013/068726 EP2013068726W WO2014040989A2 WO 2014040989 A2 WO2014040989 A2 WO 2014040989A2 EP 2013068726 W EP2013068726 W EP 2013068726W WO 2014040989 A2 WO2014040989 A2 WO 2014040989A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydrogen
- carbon
- energy
- gas
- production
- 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.)
- Ceased
Links
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 producing steel according to the preamble of claim 1 and a and method for storing discontinuous energy.
- 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 methane and possibly Synthe ⁇ se gas.
- methane is first reacted according to the following reaction: CH 4 + C0 2 2C0 + 2H and the iron oxide reacts with the reducing gas beispielswei ⁇ se for:
- 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.
- a proportion of regeneratively produced methanol and a proportion of methanol provided by means of non-regenerative electrical energy and / or is produced by direct reduction and / or partial oxidation and / or reforming.
- the object of the invention is to provide a method by which pig iron, in particular steel, can be produced C02-neutral on an industrial scale.
- the steel production is at least partially, preferably completely operated with regenerative energy, where ⁇ on the one hand a direct reduction process is operated and on the other hand, the intermediate product obtained in the direct reduction process in the example electric arc furnace further processed accordingly.
- ⁇ on the one hand a direct reduction process is operated and on the other hand, the intermediate product obtained in the direct reduction process in the example electric arc furnace further processed accordingly.
- use in the LD process and / or blast furnace would also be possible.
- a particular advantage is that the intermediate product generated by means of regenerative energy can be stored until it is further processed, which means that storage of regenerative energy is possible with the method according to the invention. Exactly this storage of regenerative energy has been a very big problem so far, since in particular electrical energy, which is obtained from wind or sun, depends on climatic conditions, which are not always the same. Hydropower generated electrical energy is not always available.
- the inventive method provides to use these generated from wind, water or solar energy electric energy for generating hydrogen from water by way of electrolysis.
- a direct reduction plant is operated in the - be reduced stor ⁇ -refined ores - also preferable with such generated electric energy.
- the thus obtained intermediate ⁇ product is an ideal memory of this renewable energy is and can be stored until its further processing and any form of transport accessible to a further processing device, in particular when it is needed there.
- this intermediate can then be produced at the place of its formation in large quantities which exceed the current demand, if the corresponding electrical energy is sufficiently available. If this energy is not available, sufficient quantities of the intermediate and thus of the energy are available to meet the demand.
- the intermediate product can also be used in the blast furnace or LD process.
- the hydrogen from the regenerative processes with carbon or hydrogen-containing gas streams such as CH4, COG, syngas, etc.
- carbon or hydrogen-containing gas streams such as CH4, COG, syngas, etc.
- the ratio Zvi ⁇ rule hydrogen from the regenerative processes substance- to carbon- and hydrogen-containing gas streams can be continuously varied depending on availability. For example, when there is a great deal of hydrogen, almost 100% of this is used for direct reduction. The remainder is the minimum necessary carbon or hydrogen-containing gas stream for adjusting the carbon content. But .In case of need can also pure carbon- and hydrogen-containing gas streams ⁇ (such as natural gas, biogas and gas from pyrolysis for ⁇ renewable resources) to be changed.
- the method is operated so that by means of regenerative energy in their presence as much hydrogen is generated, as it allows the existing energy and to use this hydrogen for the direct reduction.
- a carbon- and hydrogen-containing gas streams and gas streams from the biogas production and pyrolysis of renewable resources come even ⁇ course in question.
- This buffering of the hydrogen can be used, for example, in a gasometer, and the adjustment of the contents of carbon- or hydrogen-containing gas streams can take place via a forecasting control.
- This prediction control can measure the predicted attack / generation amount of hydrogen and regenerative energy, further but also, for example, weather forecasts for the generation ⁇ amount of regenerative energy to be able to estimate.
- forecast forecasts from other external consumers can be included in this forecasting control so that the generated data can be used electrical energy used from renewable sources efficiently in the host ⁇ economically sensible.
- the prevailing temperatures of the gas stream are set by heating by means of, for example, reformer, heater or partial oxidation to 450 ° C to 1200 ° C, preferably 600 ° C to 1200 ° C in particular 700 ° C to 900 ° C and then introduced into the direct reduction process, to perform a chemical reaction there.
- the gas stream which leaves the direct reduction process can also be recycled into the process as a gas stream containing carbon or hydrogen.
- the resulting possible intermediates according to the invention are HBI, HDRI or CDRI.
- overpressures of 0 bar to 15 bar are set.
- overpressures of about 1.5 bar are preferred in the MIDREX process and about 9 bar in Energiron.
- the carbon content can ideally be adjusted to 0.0005% to 6.3%, preferably 1% to 3% and directly as C or Fe 3 C im Intermediate be incorporated.
- Such Zvi is ⁇ rule product ideally set in the carbon content and are particularly suitable for further processing as it contributes to not ⁇ agile carbon content for the metallurgical process.
- FIG. 1 shows the inventive method in a beispielhaf ⁇ th embodiment (electric arc furnace) at a glance;
- FIG. 2 shows an overview of the method according to the invention in a second exemplary embodiment (LD method);
- the reduction of predominantly oxidi ⁇ rule iron carrier via hydrogen and optionally carbon ⁇ fabric handles either CO2 from industrial processes, which can not avoid a CC> 2 emissions, or methane, in particular from regenerative processes such as the production of biogas.
- the iron ore reduction may be known to take place in three possible answer ⁇ th:
- Iron ore reduction (hematite, iron (I I)) oxide is carried out by:
- the intermediate product obtained in the direct reduction process can be so-called DRI (direct reduced iron) or HBI (hot briquetted iron), which according to FIG Electric arc furnace can be smelted to steel if necessary with the addition of scrap.
- DRI direct reduced iron
- HBI hot briquetted iron
- FIG. 1 furthermore shows that HDRI or CDRI can also be fed directly into the electric furnace without the "detour" of HBI production.
- HBI may also be used in other metallurgical processes other than the electric arc furnace such as e.g. in the blast furnace process or as a scrap set in the LD process.
- CDRI or HDRI can also be fed directly to the blast furnace process or LD process.
- these can be stored in the form of hydrogen, if it is present in excess. This storage can be done for example in a gasometer. Such a memory is then used in the event of fluctuations. Short term Swan ⁇ effects can be predicted, for example, occur in solar systems at night or unpredictable such as wind strength fluctuations in wind turbines.
- Another advantage of the invention lies in the spatial decoupling of the places of production of regenerative energy and the use of this energy. For example, solar plants tend to be built in sun-warmed, warmer areas with a lot of space, whereas steelworks are often found near rivers or seas.
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- 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)
- Manufacture Of Iron (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (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)
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020157009624A KR20150063075A (ko) | 2012-09-14 | 2013-09-10 | 제강 방법 |
| ES13765312.7T ES2689779T3 (es) | 2012-09-14 | 2013-09-10 | Procedimiento para producir acero con energía renovable |
| CN201380047304.7A CN104662176A (zh) | 2012-09-14 | 2013-09-10 | 使用可再生能量用于生产钢铁的方法 |
| JP2015531540A JP2015529751A (ja) | 2012-09-14 | 2013-09-10 | スチール製造方法 |
| US14/428,206 US20150259760A1 (en) | 2012-09-14 | 2013-09-10 | Method for producing steel |
| EP13765312.7A EP2895631B1 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum erzeugen von stahl mit regenerativer energie |
| US15/635,892 US20170298461A1 (en) | 2012-09-14 | 2017-06-28 | Method for producing steel |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012108631.1 | 2012-09-14 | ||
| 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 |
| DE102012109284.2 | 2012-09-28 | ||
| DE102013104002.0A DE102013104002A1 (de) | 2013-04-19 | 2013-04-19 | Verfahren zum Aufheizen von Prozessgasen für Direktreduktionsanlagen |
| DE102013104002.0 | 2013-04-19 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US14/428,206 A-371-Of-International US20150259760A1 (en) | 2012-09-14 | 2013-09-10 | Method for producing steel |
| US15/635,892 Continuation-In-Part US20170298461A1 (en) | 2012-09-14 | 2017-06-28 | Method for producing steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2014040989A2 true WO2014040989A2 (de) | 2014-03-20 |
| WO2014040989A3 WO2014040989A3 (de) | 2014-06-12 |
Family
ID=50277660
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2013/068727 Ceased WO2014040990A2 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum speichern diskontinuierlich anfallender energie |
| PCT/EP2013/068743 Ceased WO2014040997A1 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagen |
| PCT/EP2013/068726 Ceased WO2014040989A2 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum erzeugen von stahl |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2013/068727 Ceased WO2014040990A2 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum speichern diskontinuierlich anfallender energie |
| PCT/EP2013/068743 Ceased WO2014040997A1 (de) | 2012-09-14 | 2013-09-10 | Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagen |
Country Status (8)
| Country | Link |
|---|---|
| US (3) | US20150259760A1 (de) |
| EP (3) | EP2895629A1 (de) |
| JP (3) | JP2015529751A (de) |
| KR (3) | KR20150053809A (de) |
| CN (3) | CN104662175A (de) |
| ES (2) | ES2689779T3 (de) |
| FI (1) | FI2895630T3 (de) |
| WO (3) | WO2014040990A2 (de) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3581663A1 (de) | 2018-06-12 | 2019-12-18 | Primetals Technologies Austria GmbH | Herstellung von karburiertem eisenschwamm mittels wasserstoffbasierter direktreduktion |
| DE102020116425A1 (de) | 2020-06-22 | 2021-12-23 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung von Rohstahl mit niedrigem N-Gehalt |
| 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 |
| US12180074B2 (en) | 2022-11-07 | 2024-12-31 | Charm Industrial, Inc. | Systems and methods for producing syngas from bio-oil |
| US12252753B2 (en) | 2023-01-11 | 2025-03-18 | Charm Industrial, Inc. | Systems and methods for self-reduction of iron ore |
| US12398034B2 (en) | 2022-11-07 | 2025-08-26 | Charm Industrial, Inc. | Systems and methods for producing syngas from bio-oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2015529751A (ja) | 2012-09-14 | 2015-10-08 | フェストアルピネ シュタール ゲーエムベーハーVoestalpine Stahl Gmbh | スチール製造方法 |
| 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 |
| DE102018211104A1 (de) * | 2018-07-05 | 2020-01-09 | Thyssenkrupp Ag | Verfahren und Einrichtung zum Betrieb einer Produktionsanlage |
| EP3670676A1 (de) * | 2018-12-17 | 2020-06-24 | Primetals Technologies Austria GmbH | Verfahren und vorrichtung zur direktreduktion mit elektrisch aufgeheiztem reduktionsgas |
| 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 |
| MY210257A (en) | 2019-06-06 | 2025-09-05 | 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 |
| CA3179019A1 (en) * | 2020-04-27 | 2021-11-04 | Jfe Steel Corporation | Steelmaking line and method of producing reduced iron |
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| 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 |
| SE546026C2 (en) | 2020-10-22 | 2024-04-16 | Luossavaara Kiirunavaara Ab | Detonator support device and method of charging a blasthole |
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| 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 |
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| 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 |
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Citations (3)
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- 2013-09-10 US US14/428,206 patent/US20150259760A1/en not_active Abandoned
- 2013-09-10 CN CN201380047304.7A patent/CN104662176A/zh active Pending
- 2013-09-10 US US14/428,280 patent/US20150329931A1/en not_active Abandoned
- 2013-09-10 EP EP13762102.5A patent/EP2895629A1/de not_active Withdrawn
- 2013-09-10 JP JP2015531542A patent/JP2015532948A/ja active Pending
- 2013-09-10 US US14/428,116 patent/US20150259759A1/en not_active Abandoned
- 2013-09-10 FI FIEP13763210.5T patent/FI2895630T3/en active
- 2013-09-10 ES ES13765312.7T patent/ES2689779T3/es active Active
- 2013-09-10 WO PCT/EP2013/068727 patent/WO2014040990A2/de not_active Ceased
- 2013-09-10 WO PCT/EP2013/068743 patent/WO2014040997A1/de not_active Ceased
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- 2013-09-10 EP EP13765312.7A patent/EP2895631B1/de not_active Revoked
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3581663A1 (de) | 2018-06-12 | 2019-12-18 | Primetals Technologies Austria GmbH | Herstellung von karburiertem eisenschwamm mittels wasserstoffbasierter direktreduktion |
| WO2019238720A1 (de) | 2018-06-12 | 2019-12-19 | Primetals Technologies Austria GmbH | Herstellung von karburiertem eisenschwamm mittels wasserstoffbasierter direktreduktion |
| US12180554B2 (en) | 2018-06-12 | 2024-12-31 | Primetals Technologies Austria GmbH | Method for carburization of HDRI produced in H2 based direct reduction process |
| DE102020116425A1 (de) | 2020-06-22 | 2021-12-23 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung von Rohstahl mit niedrigem N-Gehalt |
| 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 |
| US12180074B2 (en) | 2022-11-07 | 2024-12-31 | Charm Industrial, Inc. | Systems and methods for producing syngas from bio-oil |
| US12398034B2 (en) | 2022-11-07 | 2025-08-26 | Charm Industrial, Inc. | Systems and methods for producing syngas from bio-oil |
| US12252753B2 (en) | 2023-01-11 | 2025-03-18 | Charm Industrial, Inc. | Systems and methods for self-reduction of iron ore |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104662176A (zh) | 2015-05-27 |
| US20150259760A1 (en) | 2015-09-17 |
| KR20150065728A (ko) | 2015-06-15 |
| EP2895630B1 (de) | 2023-06-07 |
| US20150259759A1 (en) | 2015-09-17 |
| EP2895631A2 (de) | 2015-07-22 |
| WO2014040997A1 (de) | 2014-03-20 |
| KR20150053809A (ko) | 2015-05-18 |
| KR20150063075A (ko) | 2015-06-08 |
| CN104662177A (zh) | 2015-05-27 |
| WO2014040990A2 (de) | 2014-03-20 |
| EP2895629A1 (de) | 2015-07-22 |
| FI2895630T3 (en) | 2023-08-15 |
| EP2895631B1 (de) | 2018-07-18 |
| ES2689779T3 (es) | 2018-11-15 |
| CN104662175A (zh) | 2015-05-27 |
| WO2014040990A3 (de) | 2014-06-12 |
| US20150329931A1 (en) | 2015-11-19 |
| JP2015529751A (ja) | 2015-10-08 |
| WO2014040989A3 (de) | 2014-06-12 |
| JP2015534604A (ja) | 2015-12-03 |
| ES2952386T3 (es) | 2023-10-31 |
| EP2895630A2 (de) | 2015-07-22 |
| JP2015532948A (ja) | 2015-11-16 |
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