WO2014040997A1 - Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagen - Google Patents

Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagen Download PDF

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Publication number
WO2014040997A1
WO2014040997A1 PCT/EP2013/068743 EP2013068743W WO2014040997A1 WO 2014040997 A1 WO2014040997 A1 WO 2014040997A1 EP 2013068743 W EP2013068743 W EP 2013068743W WO 2014040997 A1 WO2014040997 A1 WO 2014040997A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
reduction
enriched
reducing
biomass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2013/068743
Other languages
German (de)
English (en)
French (fr)
Inventor
Hermann WOLFMEIR
Thomas BÜRGLER
Peter Schwab
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.)
Voestalpine Stahl GmbH
Original Assignee
Voestalpine Stahl GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=50277660&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2014040997(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE201210109284 external-priority patent/DE102012109284A1/de
Priority claimed from DE102013104002.0A external-priority patent/DE102013104002A1/de
Application filed by Voestalpine Stahl GmbH filed Critical Voestalpine Stahl GmbH
Priority to KR1020157009638A priority Critical patent/KR20150053809A/ko
Priority to JP2015531542A priority patent/JP2015532948A/ja
Priority to CN201380046926.8A priority patent/CN104662175A/zh
Priority to US14/428,116 priority patent/US20150259759A1/en
Priority to EP13762102.5A priority patent/EP2895629A1/de
Publication of WO2014040997A1 publication Critical patent/WO2014040997A1/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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 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)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Furnace Details (AREA)
PCT/EP2013/068743 2012-09-14 2013-09-10 Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagen Ceased WO2014040997A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020157009638A KR20150053809A (ko) 2012-09-14 2013-09-10 직접 환원 시스템용 공정 가스 가열 방법
JP2015531542A JP2015532948A (ja) 2012-09-14 2013-09-10 直接還元システムのためのプロセスガスを加熱する方法
CN201380046926.8A CN104662175A (zh) 2012-09-14 2013-09-10 用于直接还原系统的工艺气体的加热方法
US14/428,116 US20150259759A1 (en) 2012-09-14 2013-09-10 Method for heating process gases for direct reduction systems
EP13762102.5A EP2895629A1 (de) 2012-09-14 2013-09-10 Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagen

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102012108631 2012-09-14
DE102012108631.1 2012-09-14
DE102012109284.2 2012-09-28
DE201210109284 DE102012109284A1 (de) 2012-09-14 2012-09-28 Verfahren zum Erzeugen von Stahl und Verfahren zum Speichern diskontinuierlich anfallender Energie
DE102013104002.0 2013-04-19
DE102013104002.0A DE102013104002A1 (de) 2013-04-19 2013-04-19 Verfahren zum Aufheizen von Prozessgasen für Direktreduktionsanlagen

Publications (1)

Publication Number Publication Date
WO2014040997A1 true WO2014040997A1 (de) 2014-03-20

Family

ID=50277660

Family Applications (3)

Application Number Title Priority Date Filing Date
PCT/EP2013/068743 Ceased WO2014040997A1 (de) 2012-09-14 2013-09-10 Verfahren zum aufheizen von prozessgasen für direktreduktionsanlagen
PCT/EP2013/068727 Ceased WO2014040990A2 (de) 2012-09-14 2013-09-10 Verfahren zum speichern diskontinuierlich anfallender energie
PCT/EP2013/068726 Ceased WO2014040989A2 (de) 2012-09-14 2013-09-10 Verfahren zum erzeugen von stahl

Family Applications After (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/EP2013/068726 Ceased WO2014040989A2 (de) 2012-09-14 2013-09-10 Verfahren zum erzeugen von stahl

Country Status (8)

Country Link
US (3) US20150329931A1 (enExample)
EP (3) EP2895631B1 (enExample)
JP (3) JP2015532948A (enExample)
KR (3) KR20150053809A (enExample)
CN (3) CN104662177A (enExample)
ES (2) ES2952386T3 (enExample)
FI (1) FI2895630T3 (enExample)
WO (3) WO2014040997A1 (enExample)

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WO2020007796A1 (de) * 2018-07-05 2020-01-09 Thyssenkrupp Industrial Solutions 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
CN111910036A (zh) * 2019-05-10 2020-11-10 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
SE2030072A1 (en) * 2020-03-10 2021-09-11 Hybrit Development Ab Methanol as hydrogen carier in H-DRI process
CN114525518A (zh) * 2020-11-09 2022-05-24 中国石油大学(北京) 一种利用可再生能源电的方法
EP4373209A1 (de) 2022-11-15 2024-05-22 Primetals Technologies Austria GmbH Elektrische aufheizung von gas
WO2025239594A1 (ko) * 2024-05-14 2025-11-20 주식회사 포스코 환원철 제조 설비 및 제조 방법

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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
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CN117460845A (zh) * 2021-06-14 2024-01-26 杰富意钢铁株式会社 还原铁的制造方法
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EP4443352A1 (de) * 2023-04-05 2024-10-09 Primetals Technologies Germany GmbH Kosteneffizienter betrieb einer dri-anlage und weiterer teilsysteme eines gesamtsystems
CN118240988A (zh) * 2024-04-19 2024-06-25 北京科技大学 一种耦合直接还原炼铁和熔融还原炼铁的低碳炼铁工艺

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