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PE76199A1 - Proceso para producir hierro esponjoso por reduccion directa de material que contiene oxido de hierro - Google Patents

Proceso para producir hierro esponjoso por reduccion directa de material que contiene oxido de hierro

Info

Publication number
PE76199A1
PE76199A1 PE1997000983A PE00098397A PE76199A1 PE 76199 A1 PE76199 A1 PE 76199A1 PE 1997000983 A PE1997000983 A PE 1997000983A PE 00098397 A PE00098397 A PE 00098397A PE 76199 A1 PE76199 A1 PE 76199A1
Authority
PE
Peru
Prior art keywords
gas
material containing
iron oxide
direct reduction
containing iron
Prior art date
Application number
PE1997000983A
Other languages
English (en)
Inventor
Siegfried Zeller
Felix Wallner
Johann Reidetschlager
Roy Hubert Whipp Jr
Original Assignee
Voest Alpine Ind Anlagen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voest Alpine Ind Anlagen filed Critical Voest Alpine Ind Anlagen
Publication of PE76199A1 publication Critical patent/PE76199A1/es

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
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • 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
    • C21B13/146—Multi-step reduction without melting
    • 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
    • C21B2100/26—Increasing the gas reduction potential of recycled exhaust gases by adding additional fuel in recirculation pipes
    • 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
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
    • 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
    • C21B2100/42—Sulphur removal
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Catalysts (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

SE MEZCLA GAS DE SINTESIS CON GAS DE CABEZA FORMADO POR LA REDUCCION DIRECTA DEL MATERIAL QUE CONTIENE OXIDO DE HIERRO Y SIENDO EL MISMO USADO COMO GAS REDUCTOR QUE CONTIENE CO Y H2 Y PARA EL CALENTAMIENTO DEL MATERIAL QUE CONTIENE OXIDO DE HIERRO A LA TEMPERATURA DE REDUCCION. LA REDUCCION DIRECTA COMPRENDE DE: 1) UTILIZAR ADEMAS DEL GAS REDUCTOR UN GAS QUE CONTIENE CARBONO TAL COMO EL GAS NATURAL O HIDROCARBUROS DE MAYOR NUMERO DE CARBONOS. 2) EXPONER EL MATERIAL QUE CONTIENE EL OXIDO DE HIERRO AL GAS REDUCTOR Y AL GAS QUE CONTIENE CARBONO SUMINISTRADO ADICIONALMENTE DURANTE UN PERIODO MAYOR AL PERIODO NECESARIO PARA LA REDUCCION COMPLETA. 3) AJUSTAR EN EL GAS REDUCTOR LA RAZON DE CO/CO2 EN UNA RAZON COMPRENDIDA ENTRE 2 Y 5, PREFERENTEMENTE SUPERIOR A 2,5
PE1997000983A 1996-11-06 1997-11-03 Proceso para producir hierro esponjoso por reduccion directa de material que contiene oxido de hierro PE76199A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0193396A AT406382B (de) 1996-11-06 1996-11-06 Verfahren zum herstellen von eisenschwamm durch direktreduktion von eisenoxidhältigem material

Publications (1)

Publication Number Publication Date
PE76199A1 true PE76199A1 (es) 1999-08-12

Family

ID=3524163

Family Applications (1)

Application Number Title Priority Date Filing Date
PE1997000983A PE76199A1 (es) 1996-11-06 1997-11-03 Proceso para producir hierro esponjoso por reduccion directa de material que contiene oxido de hierro

Country Status (16)

Country Link
US (1) US6143053A (es)
EP (1) EP0871782B1 (es)
JP (1) JP4327253B2 (es)
AR (1) AR009597A1 (es)
AT (1) AT406382B (es)
AU (1) AU734371B2 (es)
BR (1) BR9707113A (es)
CA (1) CA2242255C (es)
CO (1) CO4870794A1 (es)
DE (1) DE59705887D1 (es)
ID (1) ID21829A (es)
MX (1) MX9805413A (es)
MY (1) MY132734A (es)
PE (1) PE76199A1 (es)
WO (1) WO1998020171A1 (es)
ZA (1) ZA979929B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6478841B1 (en) 2001-09-12 2002-11-12 Techint Technologies Inc. Integrated mini-mill for iron and steel making
SE0301071D0 (sv) * 2003-04-11 2003-04-11 Hoeganaes Ab Gas purification
PL379514A1 (pl) * 2003-10-03 2006-10-02 Corus Technology Bv Sposób i urządzenie do redukowania związków metalu i tlenu
AT506837B1 (de) * 2008-06-06 2010-03-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zur herstellung von roheisen oder flüssigen stahlvorprodukten
AT508522B1 (de) * 2009-07-31 2011-04-15 Siemens Vai Metals Tech Gmbh Reformergasbasiertes reduktionsverfahren mit vermindertem nox-ausstoss
AT508250B1 (de) * 2009-09-11 2010-12-15 Siemens Vai Metals Tech Gmbh Verfahren zur entfernung von co2 aus abgasen, wie abgase aus anlagen zur roheisenherstellung oder abgase aus synthesegasanlagen
EP2746408A1 (de) * 2012-12-21 2014-06-25 Siemens VAI Metals Technologies GmbH Überhitzung von einem in einem Reduktionsprozess genutzten Exportgas zum Ausgleich von Mengenschwankungen und Vorrichtung zum dessen
KR102135521B1 (ko) * 2016-02-05 2020-07-17 닛폰세이테츠 가부시키가이샤 고로 샤프트부로의 수소 함유 환원 가스 공급 방법
DE102021112208A1 (de) 2021-05-11 2022-11-17 Thyssenkrupp Steel Europe Ag Verfahren zur Direktreduktion von Eisenerz

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US32247A (en) * 1861-05-07 Vegetable-cutter
US2752234A (en) * 1955-07-07 1956-06-26 United States Steel Corp Process for continuous gaseous reduction of iron ore in a fluidized bed system
US3827879A (en) * 1973-02-22 1974-08-06 Fierro Esponja Method for the gaseous reduction of metal ores
US4053301A (en) 1975-10-14 1977-10-11 Hazen Research, Inc. Process for the direct production of steel
DE3437913C2 (de) * 1984-10-12 1987-05-07 Korf Engineering GmbH, 4000 Düsseldorf Verfahren und Vorrichtung zur Herstellung von Eisenschwamm und/oder flüssigem Roheisen
AU582453B2 (en) * 1985-07-18 1989-03-23 Kabushiki Kaisha Kobe Seiko Sho Melt-reductive iron making method from iron ore
US5082251A (en) * 1990-03-30 1992-01-21 Fior De Venezuela Plant and process for fluidized bed reduction of ore
US5118479A (en) * 1990-08-01 1992-06-02 Iron Carbide Holdings, Limited Process for using fluidized bed reactor
US5137566A (en) * 1990-08-01 1992-08-11 Iron Carbide Holdings, Limited Process for preheating iron-containing reactor feed prior to being treated in a fluidized bed reactor
AU1267192A (en) * 1992-01-17 1993-08-03 Roy H. Whipp Improved plant and process for fluidized bed reduction of ore
AT402937B (de) * 1992-05-22 1997-09-25 Voest Alpine Ind Anlagen Verfahren und anlage zur direktreduktion von teilchenförmigem eisenoxidhältigem material
US5869018A (en) * 1994-01-14 1999-02-09 Iron Carbide Holdings, Ltd. Two step process for the production of iron carbide from iron oxide
US5437708A (en) * 1994-05-04 1995-08-01 Midrex International B.V. Rotterdam, Zurich Branch Iron carbide production in shaft furnace
US5618032A (en) * 1994-05-04 1997-04-08 Midrex International B.V. Rotterdam, Zurich Branch Shaft furnace for production of iron carbide
AT402938B (de) * 1994-06-23 1997-09-25 Voest Alpine Ind Anlagen Verfahren und anlage zur direktreduktion von verfahren und anlage zur direktreduktion von eisenoxidhältigem material eisenoxidhältigem material
AT402825B (de) * 1994-06-23 1997-09-25 Voest Alpine Ind Anlagen Verfahren zur direktreduktion von eisenoxidhältigem material

Also Published As

Publication number Publication date
DE59705887D1 (de) 2002-01-31
ZA979929B (en) 1998-05-25
AU4766497A (en) 1998-05-29
AU734371B2 (en) 2001-06-14
CA2242255C (en) 2009-12-29
ID21829A (id) 1999-07-29
JP4327253B2 (ja) 2009-09-09
EP0871782B1 (de) 2001-12-19
MY132734A (en) 2007-10-31
JP2000503349A (ja) 2000-03-21
AT406382B (de) 2000-04-25
WO1998020171A1 (de) 1998-05-14
EP0871782A1 (de) 1998-10-21
CA2242255A1 (en) 1998-05-14
CO4870794A1 (es) 1999-12-27
MX9805413A (es) 1998-10-31
AR009597A1 (es) 2000-04-26
US6143053A (en) 2000-11-07
ATA193396A (de) 1999-09-15
BR9707113A (pt) 1999-07-20

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Legal Events

Date Code Title Description
FG Grant, registration
FD Application declared void or lapsed