AR022624A1 - DIRECT REDUCTION METHOD FOR METAL MATERIAL AND RELATED PLANT - Google Patents

DIRECT REDUCTION METHOD FOR METAL MATERIAL AND RELATED PLANT

Info

Publication number
AR022624A1
AR022624A1 ARP000100685A ARP000100685A AR022624A1 AR 022624 A1 AR022624 A1 AR 022624A1 AR P000100685 A ARP000100685 A AR P000100685A AR P000100685 A ARP000100685 A AR P000100685A AR 022624 A1 AR022624 A1 AR 022624A1
Authority
AR
Argentina
Prior art keywords
reactor
metallic material
direct reduction
zone
metal material
Prior art date
Application number
ARP000100685A
Other languages
Spanish (es)
Original Assignee
Danieli Off Mecc
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 Danieli Off Mecc filed Critical Danieli Off Mecc
Publication of AR022624A1 publication Critical patent/AR022624A1/en

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
    • 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
    • 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
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • 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
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • 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
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • 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]

Abstract

Método y planta para la reduccion directa de material metálico para la produccion de carburo de hierro a partir de oxidos de hierro, que comprenden lospasos de pre-reducir los oxidos de hierro en una primera zona superior (12) de un reactor (10), unpaso de reduccion en una segunda zona intermedia del reactor(10) y un paso para depositar el carbono como Fe3C en una forma controlada sobre las superficies del material metálico en una tercera zona inferior (16) delreactor (10), utilizando gas natural y/o gas de proceso como una fuente, en donde dicho paso de deposito controlado comprende introducir en la zona inferior(16) una corriente gaseosa que comprende una mezcla que contiene gas natural, y mantener al material metálico en dicha zona inferior (16) a una temperatura de550°C y 750°C durante un tiempo de 30 a 90 minutos.Method and plant for the direct reduction of metallic material for the production of iron carbide from iron oxides, comprising the steps of pre-reducing iron oxides in a first upper zone (12) of a reactor (10), a reduction step in a second intermediate zone of the reactor (10) and a step to deposit the carbon as Fe3C in a controlled manner on the surfaces of the metallic material in a third lower zone (16) of the reactor (10), using natural gas and / or process gas as a source, wherein said controlled deposit passage comprises introducing into the lower zone (16) a gaseous stream comprising a mixture containing natural gas, and keeping the metallic material in said lower zone (16) at a temperature of 550 ° C and 750 ° C for a time of 30 to 90 minutes.

ARP000100685A 1999-02-18 2000-02-17 DIRECT REDUCTION METHOD FOR METAL MATERIAL AND RELATED PLANT AR022624A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1999UD000031A IT1310535B1 (en) 1999-02-18 1999-02-18 DIRECT REDUCTION PROCESS FOR METAL MATERIAL AND RELATED INSTALLATION

Publications (1)

Publication Number Publication Date
AR022624A1 true AR022624A1 (en) 2002-09-04

Family

ID=11422867

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP000100685A AR022624A1 (en) 1999-02-18 2000-02-17 DIRECT REDUCTION METHOD FOR METAL MATERIAL AND RELATED PLANT

Country Status (4)

Country Link
AR (1) AR022624A1 (en)
AU (1) AU2125500A (en)
IT (1) IT1310535B1 (en)
WO (1) WO2000049184A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1310784B1 (en) * 1999-10-11 2002-02-22 Danieli Off Mecc DIRECT REDUCTION EQUIPMENT TO OBTAIN METAL IRON WITH CARBON CARBON CONTENT
ITMI20060158A1 (en) * 2006-01-31 2007-08-01 Danieli Off Mecc PROCESS AND REDUCTION PLANT
SE532975C2 (en) * 2008-10-06 2010-06-01 Luossavaara Kiirunavaara Ab Process for the production of direct-reduced iron
US20150259760A1 (en) * 2012-09-14 2015-09-17 Voestalpine Stahl Gmbh Method for producing steel
WO2023048232A1 (en) * 2021-09-24 2023-03-30 日本製鉄株式会社 Agglomerated ore and method for producing same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333761A (en) * 1979-10-22 1982-06-08 Midrex Corporation Method for direct reduction of iron using high sulfur gas
US4897113A (en) * 1985-09-23 1990-01-30 Hylsa, S.A. Direct reduction process in reactor with hot discharge
US5296015A (en) * 1990-01-09 1994-03-22 Hylsa S.A. De C.V. Method for the pneumatic transport of large iron-bearing particles
US5387274A (en) * 1993-11-15 1995-02-07 C.V.G. Siderurgica Del Orinoco, C.A. Process for the production of iron carbide
US5437708A (en) * 1994-05-04 1995-08-01 Midrex International B.V. Rotterdam, Zurich Branch Iron carbide production in shaft furnace
DE19838368C1 (en) * 1998-08-24 1999-08-12 Ferrostaal Ag Method and installation for reducing iron ore

Also Published As

Publication number Publication date
IT1310535B1 (en) 2002-02-18
ITUD990031A1 (en) 2000-08-18
WO2000049184A1 (en) 2000-08-24
AU2125500A (en) 2000-09-04

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