IT1302811B1 - Procedimento e relativo apparato per la riduzione direttadi ossidi di ferro - Google Patents

Procedimento e relativo apparato per la riduzione direttadi ossidi di ferro

Info

Publication number
IT1302811B1
IT1302811B1 IT1998UD000212A ITUD980212A IT1302811B1 IT 1302811 B1 IT1302811 B1 IT 1302811B1 IT 1998UD000212 A IT1998UD000212 A IT 1998UD000212A IT UD980212 A ITUD980212 A IT UD980212A IT 1302811 B1 IT1302811 B1 IT 1302811B1
Authority
IT
Italy
Prior art keywords
procedure
iron oxides
direct reduction
related apparatus
reduction
Prior art date
Application number
IT1998UD000212A
Other languages
English (en)
Inventor
Henry Bueno
David Rabascal
Gianpietro Benedetti
Original Assignee
Danieli & C Ohg Sp
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 & C Ohg Sp filed Critical Danieli & C Ohg Sp
Priority to IT1998UD000212A priority Critical patent/IT1302811B1/it
Priority to EG157199A priority patent/EG22422A/xx
Priority to EP99956286A priority patent/EP1147233B1/en
Priority to PCT/IB1999/001942 priority patent/WO2000036158A1/en
Priority to AU12919/00A priority patent/AU1291900A/en
Priority to PCT/IB1999/001940 priority patent/WO2000036156A1/en
Priority to DE69906384T priority patent/DE69906384T2/de
Priority to AT99956286T priority patent/ATE235564T1/de
Priority to AU12921/00A priority patent/AU1292100A/en
Priority to BR9916119-2A priority patent/BR9916119A/pt
Priority to BR9916118-4A priority patent/BR9916118A/pt
Priority to ARP990106283A priority patent/AR026103A1/es
Priority to ARP990106284A priority patent/AR021609A1/es
Priority to US09/457,711 priority patent/US6319301B1/en
Priority to US09/457,714 priority patent/US6395055B1/en
Priority to EG157499A priority patent/EG22368A/xx
Publication of ITUD980212A1 publication Critical patent/ITUD980212A1/it
Application granted granted Critical
Publication of IT1302811B1 publication Critical patent/IT1302811B1/it
Priority to US09/968,014 priority patent/US6551549B2/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
    • 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
    • C21B13/02—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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Compounds Of Iron (AREA)
IT1998UD000212A 1998-12-11 1998-12-11 Procedimento e relativo apparato per la riduzione direttadi ossidi di ferro IT1302811B1 (it)

Priority Applications (17)

Application Number Priority Date Filing Date Title
IT1998UD000212A IT1302811B1 (it) 1998-12-11 1998-12-11 Procedimento e relativo apparato per la riduzione direttadi ossidi di ferro
EG157199A EG22422A (en) 1998-12-11 1999-11-12 Method and relative apparatus for the direct reduction of iron oxides
BR9916119-2A BR9916119A (pt) 1998-12-11 1999-12-06 Método e aparelho para a redução direta de óxidos de ferro
AU12919/00A AU1291900A (en) 1998-12-11 1999-12-06 Method and apparatus for the direct reduction of iron oxides
PCT/IB1999/001940 WO2000036156A1 (en) 1998-12-11 1999-12-06 Method and apparatus for the direct reduction of iron oxides
DE69906384T DE69906384T2 (de) 1998-12-11 1999-12-06 Verfahren und vorrichtung zur direktreduktion von eisenerzen
AT99956286T ATE235564T1 (de) 1998-12-11 1999-12-06 Verfahren und vorrichtung zur direktreduktion von eisenerzen
AU12921/00A AU1292100A (en) 1998-12-11 1999-12-06 Method and apparatus for the direct reduction of iron oxides
EP99956286A EP1147233B1 (en) 1998-12-11 1999-12-06 Method and apparatus for the direct reduction of iron oxides
BR9916118-4A BR9916118A (pt) 1998-12-11 1999-12-06 Método e equipamento para a redução direta de óxidos de ferro
PCT/IB1999/001942 WO2000036158A1 (en) 1998-12-11 1999-12-06 Method and apparatus for the direct reduction of iron oxides
ARP990106283A AR026103A1 (es) 1998-12-11 1999-12-09 METODO PARA LA REDUCCION DE MINERALES DE HIERRO EN HORNO VERTICAL DE REDUCCIoN, DEL TIPO DE CARGA GRAVITACIONAL, DONDE EL GAS DE REDUCCION CIRCULA A CONTRA CORRIENTE CON RESPECTO A DICHO MINERAL Y APARATO CORRESPONDIENTE.
ARP990106284A AR021609A1 (es) 1998-12-11 1999-12-09 METODO PARA LA REDUCCION DIRECTA DE MINERAL DE HIERRO DENTRO DE UN HORNO VERTICAL DE REDUCCIoN DEL TIPO DE CARGA GRAVITACIONAL EN DONDE EL GAS DE REDUCCIoN FLUYE A CONTRA CORRIENTE CON RESPECTO A DICHO MINERAL Y APARATO CORRESPONDIENTE.
US09/457,711 US6319301B1 (en) 1998-12-11 1999-12-10 Method for the direct reduction of iron oxides
US09/457,714 US6395055B1 (en) 1998-12-11 1999-12-10 Method for the direct reduction of iron oxides
EG157499A EG22368A (en) 1998-12-11 1999-12-11 Method and relative apparatus for the direct reduction of iron oxides
US09/968,014 US6551549B2 (en) 1998-12-11 2001-10-02 Apparatus for the direct reduction of iron oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1998UD000212A IT1302811B1 (it) 1998-12-11 1998-12-11 Procedimento e relativo apparato per la riduzione direttadi ossidi di ferro

Publications (2)

Publication Number Publication Date
ITUD980212A1 ITUD980212A1 (it) 2000-06-11
IT1302811B1 true IT1302811B1 (it) 2000-09-29

Family

ID=11422794

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1998UD000212A IT1302811B1 (it) 1998-12-11 1998-12-11 Procedimento e relativo apparato per la riduzione direttadi ossidi di ferro

Country Status (10)

Country Link
US (3) US6319301B1 (it)
EP (1) EP1147233B1 (it)
AR (2) AR021609A1 (it)
AT (1) ATE235564T1 (it)
AU (2) AU1291900A (it)
BR (2) BR9916119A (it)
DE (1) DE69906384T2 (it)
EG (2) EG22422A (it)
IT (1) IT1302811B1 (it)
WO (2) WO2000036156A1 (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6602317B2 (en) * 1997-09-05 2003-08-05 Midrex International, B.V. Rotterdam, Zurich Branch Method and apparatus for controlling temperature uniformity of the burden in a direct reduction shaft furnace
EP1604373B1 (en) * 2002-12-12 2012-07-25 Midrex International B.V. Rotterdam, Zürich Branch Method and apparatus for controling temperature uniformity of the burden in a direct reduction shaft furnace
FR2881297B1 (fr) * 2005-01-27 2007-05-18 Schneider Toshiba Inverter Procede et systeme de gestion de la tension sur le bus continu d'un variateur de vitesse pour moteur electrique
ITMI20060158A1 (it) * 2006-01-31 2007-08-01 Danieli Off Mecc Processo ed impianto di riduzione
US7608129B2 (en) * 2006-04-24 2009-10-27 Hyl Technologies S.A. De C.V. Method and apparatus for producing direct reduced iron
DE102006062689B4 (de) * 2006-12-21 2009-01-22 Mines And Metals Engineering Gmbh (M.M.E.) Schachtofen für die direkte Reduktion von Eisenoxid
US9273368B2 (en) 2011-07-26 2016-03-01 Hatch Ltd. Process for direct reduction of iron oxide
WO2014040989A2 (de) 2012-09-14 2014-03-20 Voestalpine Stahl Gmbh Verfahren zum erzeugen von stahl
US20140167336A1 (en) 2012-12-18 2014-06-19 L'air Liquide Societe Anonyme Pour I'etude Et I'exploitation Des Procedes Georges Claude Integration of oxygen transport membrane with coal based dri process
MX368822B (es) * 2013-02-27 2019-10-15 Hyl Tech S A De C V Proceso de reduccion directa con calidad de producto y eficiencia de proceso mejoradas.
CN104726699B (zh) * 2015-03-25 2017-03-01 甘肃酒钢集团宏兴钢铁股份有限公司 利用冶金含铁尘泥生产的高强度复合金属化球团及其生产工艺
WO2017115133A1 (en) * 2015-12-28 2017-07-06 Hyl Technologies, S.A. De C.V. Method and system for producing high-carbon dri using syngas
BR112020018943A2 (pt) * 2018-03-27 2020-12-29 Midrex Technologies, Inc. Sistema e método de injeção de oxigênio para um processo de redução direta
DE102021112922A1 (de) * 2021-06-02 2022-12-08 Thyssenkrupp Steel Europe Ag Verfahren zur Direktreduktion von Eisenerz

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054444A (en) * 1975-09-22 1977-10-18 Midrex Corporation Method for controlling the carbon content of directly reduced iron
GB2016124B (en) * 1978-03-11 1982-06-09 Hamburger Stahlwerke Gmbh Rocess and apparatus for the direct reduction of iron ores
US4270739A (en) * 1979-10-22 1981-06-02 Midrex Corporation Apparatus for direct reduction of iron using high sulfur gas
US4351513A (en) * 1981-01-29 1982-09-28 Midrex Corporation Direct reduction of iron using coke oven gas
US4536213A (en) * 1984-09-10 1985-08-20 Mildrex International, B.V. Reforming of higher hydrocarbons for metal oxide reduction
EP0257173B1 (de) * 1986-08-12 1990-03-14 VOEST-ALPINE INDUSTRIEANLAGENBAU GESELLSCHAFT m.b.H. Hüttenwerk sowie Verfahren zum Betrieb eines solchen Hüttenwerkes
US4834792A (en) * 1986-08-21 1989-05-30 Hylsa S.A. De C.V. Method for producing hot sponge iron by introducing hydrocarbon for carburizing into reduction zone
AT388176B (de) * 1987-07-30 1989-05-10 Voest Alpine Ag Verfahren und anlage zur gewinnung von fluessigem roheisen oder stahlvorprodukten aus stueckigen, eisenoxidhaeltigen einsatzstoffen
US5069716A (en) * 1989-12-22 1991-12-03 C.V.G. Siderurgica Del Orinoco, C.A. Process for the production of liquid steel from iron containing metal oxides
DE4030093A1 (de) * 1990-09-22 1992-03-26 Metallgesellschaft Ag Verfahren zum aufbereiten von erdgas fuer die direktreduktion von eisenerz im schachtofen
CA2090906A1 (en) * 1992-03-05 1993-09-06 Corporacion Venezolana De Guayana (Cvg) Method for improving quality of reforming gas used in the direct reduction of metal oxides
US5702246A (en) * 1996-02-22 1997-12-30 Xera Technologies Ltd. Shaft furnace for direct reduction of oxides
US6027545A (en) * 1998-02-20 2000-02-22 Hylsa, S.A. De C.V. Method and apparatus for producing direct reduced iron with improved reducing gas utilization
US6183535B1 (en) * 1998-10-16 2001-02-06 Hylsa, S.A. De C.V. Method for increasing the capacity of a direct reduced iron plant without increasing its reformer capacity

Also Published As

Publication number Publication date
US6319301B1 (en) 2001-11-20
EG22422A (en) 2003-01-29
WO2000036158A1 (en) 2000-06-22
US20020030310A1 (en) 2002-03-14
DE69906384T2 (de) 2003-09-04
BR9916118A (pt) 2001-07-24
AR026103A1 (es) 2003-01-29
US6551549B2 (en) 2003-04-22
ITUD980212A1 (it) 2000-06-11
US6395055B1 (en) 2002-05-28
BR9916119A (pt) 2001-07-24
ATE235564T1 (de) 2003-04-15
DE69906384D1 (de) 2003-04-30
WO2000036156A1 (en) 2000-06-22
EG22368A (en) 2002-12-31
AR021609A1 (es) 2002-07-31
EP1147233A1 (en) 2001-10-24
EP1147233B1 (en) 2003-03-26
AU1291900A (en) 2000-07-03
AU1292100A (en) 2000-07-03

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Legal Events

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0001 Granted