AR021609A1 - 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. - Google Patents

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.

Info

Publication number
AR021609A1
AR021609A1 ARP990106284A ARP990106284A AR021609A1 AR 021609 A1 AR021609 A1 AR 021609A1 AR P990106284 A ARP990106284 A AR P990106284A AR P990106284 A ARP990106284 A AR P990106284A AR 021609 A1 AR021609 A1 AR 021609A1
Authority
AR
Argentina
Prior art keywords
reduction
mineral
oven
gas
type
Prior art date
Application number
ARP990106284A
Other languages
English (en)
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 AR021609A1 publication Critical patent/AR021609A1/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
    • C21B13/02—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)

Abstract

Método para la reduccion directa de hierro mineral dentro de un horno de reduccion vertical del tipo con carga gravitacional, en donde el gas de reduccionfluye a contraflujo con respecto al material introducido dentro del horno, que comprende lassig uientes etapas: el hierro mineral es alimentado desde arribadentro del horno (10), una mezcla de gas a alta temperatura consistente de gas de reduccion basado en H2 y CO es inyectado y se remueve el mineral reducidoproveniente del horno (10), lamezc la de gas se introduce en al menos dos zonas (12, 14) del horno (10) dispuestas una sobre la otra de modo tal de lograr, enuna forma controlada, una primera etapa de precalentamiento y prereduccion en la parte superior (12) del horno (10) y unasegun da etapa de reduccion en laparte inferior (14) del horno (10). Aparato para la reduccion directa de hierro mineral que comprende un horno de reduccion vertical (10) del tipo con cargagravitacional para lograr en el mismo las reacciones dereduccion d el hierro mineral, medios (11) para alimentar el hierro mineral dentro del horno (10) desdearriba, medios para levantar la temperatura del gas de reduccion, medios mezcladores adecuados para obtener una mezcla del gas de reduccion con almenos unhidr ocarburo, medios para inyectar la mezcla de gas a alta temperatura, y medios (15) para remover el mineral reducido de la parte inferior del horno (10), elhorno está provisto de al menos dos zonas (12, 14) dispuestas en forma distanciadaverticalmente , en cada una de las cuales ha de ser adecuadamente introducidauna mezcla de gas a alta temperatura de modo de lograr las reacciones de reduccion en una forma controlada.
ARP990106284A 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. AR021609A1 (es)

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 (1)

Publication Number Publication Date
AR021609A1 true AR021609A1 (es) 2002-07-31

Family

ID=11422794

Family Applications (2)

Application Number Title Priority Date Filing Date
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.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
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.

Country Status (10)

Country Link
US (3) US6395055B1 (es)
EP (1) EP1147233B1 (es)
AR (2) AR026103A1 (es)
AT (1) ATE235564T1 (es)
AU (2) AU1292100A (es)
BR (2) BR9916119A (es)
DE (1) DE69906384T2 (es)
EG (2) EG22422A (es)
IT (1) IT1302811B1 (es)
WO (2) WO2000036156A1 (es)

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
CA2508718C (en) * 2002-12-12 2011-04-19 Midrex International B.V. Rotterdam, Zurich Branch Method and apparatus for controlling 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
JP2015534604A (ja) 2012-09-14 2015-12-03 フェストアルピネ シュタール ゲーエムベーハーＶｏｅｓｔａｌｐｉｎｅ Ｓｔａｈｌ Ｇｍｂｈ 不連続に作り出されるエネルギの貯蔵方法
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
WO2014132130A2 (en) * 2013-02-27 2014-09-04 Hyl Technologies S.A. De C.V. Direct reduction process with improved product quality and process gas efficiency
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
EP3397780B1 (en) * 2015-12-28 2020-04-08 HYL Technologies, S.A. de C.V. Method and system for producing high-carbon dri using syngas
FI3774645T3 (fi) * 2018-03-27 2023-10-02 Midrex Technologies Inc Hapenruiskutusjärjestelmä suorapelkistysmenetelmää varten
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
ATE51033T1 (de) * 1986-08-12 1990-03-15 Voest Alpine Ind Anlagen Huettenwerk sowie verfahren zum betrieb eines solchen huettenwerkes.
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
AU1291900A (en) 2000-07-03
ATE235564T1 (de) 2003-04-15
EP1147233A1 (en) 2001-10-24
US6551549B2 (en) 2003-04-22
BR9916118A (pt) 2001-07-24
WO2000036156A1 (en) 2000-06-22
ITUD980212A1 (it) 2000-06-11
EP1147233B1 (en) 2003-03-26
US6395055B1 (en) 2002-05-28
DE69906384D1 (de) 2003-04-30
WO2000036158A1 (en) 2000-06-22
EG22422A (en) 2003-01-29
EG22368A (en) 2002-12-31
DE69906384T2 (de) 2003-09-04
US20020030310A1 (en) 2002-03-14
AR026103A1 (es) 2003-01-29
IT1302811B1 (it) 2000-09-29
US6319301B1 (en) 2001-11-20
BR9916119A (pt) 2001-07-24
AU1292100A (en) 2000-07-03

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