MX9805413A - Procedimiento para producir hierro esponjoso por reduccion directa de material que contiene oxido de hierro. - Google Patents

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

Info

Publication number
MX9805413A
MX9805413A MX9805413A MX9805413A MX9805413A MX 9805413 A MX9805413 A MX 9805413A MX 9805413 A MX9805413 A MX 9805413A MX 9805413 A MX9805413 A MX 9805413A MX 9805413 A MX9805413 A MX 9805413A
Authority
MX
Mexico
Prior art keywords
gas
reduction
iron oxide
direct reduction
iron
Prior art date
Application number
MX9805413A
Other languages
English (en)
Inventor
Johann Reidetschlager
Siegfried Zeller
Felix Wallner
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 MX9805413A publication Critical patent/MX9805413A/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

En un proceso para producir hierro esponjoso por medio de reduccion directa de materiales que contienen oxido de hierro, el gas de síntesis se mezcla con el gas superior producido durante la reduccion directa de material que contieneoxido de hierro y se usa como gas de reduccion que contiene CO- y H2 para la reduccion directa y calentar los materiales que contienen oxido de hierro hasta una temperatura de reduccion. Con el fin de ahorrar energía durante la produccion de acero, en particular durante la produccion de acero, en particular durante el proceso de refinacion, se procede de la siguiente manera durante la reduccion directa: un gas que contiene carbon, tal como gas natural o gas con hidrocarburos superiores, se usa para la reduccion directa además del gas de reduccion; el material que contiene oxido de hierro se expone el gas de reduccion y al gas que contiene carbono alimentado adicionalmente durante un período de tiempo mayor al requerido para terminar la reduccion, y se fija una proporcion CO/CO2 de 2 a 5, preferentemente mayor a 2.5, en el gas de reduccion.
MX9805413A 1996-11-06 1998-07-02 Procedimiento para producir hierro esponjoso por reduccion directa de material que contiene oxido de hierro. MX9805413A (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
MX9805413A true MX9805413A (es) 1998-10-31

Family

ID=3524163

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9805413A MX9805413A (es) 1996-11-06 1998-07-02 Procedimiento 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
WO2005033347A1 (en) * 2003-10-03 2005-04-14 Corus Technology Bv Method and apparatus for reducing metal-oxygen compounds
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
FI3412780T3 (fi) * 2016-02-05 2024-07-11 Nippon Steel Corp Menetelmä vetypitoisen pelkistyskaasun syöttämiseksi masuunin kuiluosaan
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
SU1609456A3 (ru) * 1985-07-18 1990-11-23 Кабусики Кайся Кобе Сейкосе (Фирма) Способ пр мого получени железа
US5082251A (en) * 1990-03-30 1992-01-21 Fior De Venezuela Plant and process for fluidized bed reduction of ore
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
US5118479A (en) * 1990-08-01 1992-06-02 Iron Carbide Holdings, Limited Process for using fluidized bed reactor
WO1993014228A1 (en) * 1992-01-17 1993-07-22 Whipp Roy H 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
CO4870794A1 (es) 1999-12-27
EP0871782B1 (de) 2001-12-19
AU4766497A (en) 1998-05-29
ZA979929B (en) 1998-05-25
BR9707113A (pt) 1999-07-20
WO1998020171A1 (de) 1998-05-14
ATA193396A (de) 1999-09-15
AT406382B (de) 2000-04-25
EP0871782A1 (de) 1998-10-21
PE76199A1 (es) 1999-08-12
CA2242255A1 (en) 1998-05-14
AR009597A1 (es) 2000-04-26
AU734371B2 (en) 2001-06-14
JP4327253B2 (ja) 2009-09-09
JP2000503349A (ja) 2000-03-21
ID21829A (id) 1999-07-29
CA2242255C (en) 2009-12-29
MY132734A (en) 2007-10-31
US6143053A (en) 2000-11-07

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Legal Events

Date Code Title Description
FG Grant or registration
PD Change of proprietorship

Owner name: BRIFER INTERNATIONAL LTD

MM Annulment or lapse due to non-payment of fees