ES2180184T3 - Procedimiento y dispositivo para la obtencion de hierro por reduccion directa. - Google Patents

Procedimiento y dispositivo para la obtencion de hierro por reduccion directa.

Info

Publication number
ES2180184T3
ES2180184T3 ES98931993T ES98931993T ES2180184T3 ES 2180184 T3 ES2180184 T3 ES 2180184T3 ES 98931993 T ES98931993 T ES 98931993T ES 98931993 T ES98931993 T ES 98931993T ES 2180184 T3 ES2180184 T3 ES 2180184T3
Authority
ES
Spain
Prior art keywords
reduction
gasses
procedure
direct reduction
carbon
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES98931993T
Other languages
English (en)
Inventor
Manfred Ottow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of ES2180184T3 publication Critical patent/ES2180184T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66—Heat exchange
    • 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

Landscapes

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

Abstract

Procedimiento para la obtención de hierro mediante la reducción directa de mineral de hierro con carbón en un reactor (10) de reducción sin gas reductor adicional, es decir, sin gas reductor no obtenido en el reactor (10) de reducción a partir del carbón, gasificándose para convertirse en gas reductor el carbón en el reactor (10) con el ácido carbónico, producido en la reducción, y quemándose el gas reductor, producido en exceso, en una zona (17 ó 18) de combustión separada de la zona de reducción del reactor (10), reconduciéndose el calor así producido a través de un intercambiador (15 ó 16) de calor al gas existente en la cámara de reducción del reactor (10) para cubrir la demanda entálpica de la reacción que se produce en esta cámara, caracterizado porque el gas de la cámara de reducción se hace circular de manera forzada (ventilador 14) hacia la cámara de reducción a través del intercambiador (15, 16) de calor, configurado como intercambiador de calor para altas temperaturas, para el mejoramiento de la transmisión del calor al mineral de hierro y al carbón.
ES98931993T 1997-04-21 1998-04-21 Procedimiento y dispositivo para la obtencion de hierro por reduccion directa. Expired - Lifetime ES2180184T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19717750A DE19717750C2 (de) 1997-04-21 1997-04-21 Verfahren und Vorrichtung zur Gewinnung von Eisen durch Direktreduktion

Publications (1)

Publication Number Publication Date
ES2180184T3 true ES2180184T3 (es) 2003-02-01

Family

ID=7827882

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98931993T Expired - Lifetime ES2180184T3 (es) 1997-04-21 1998-04-21 Procedimiento y dispositivo para la obtencion de hierro por reduccion directa.

Country Status (8)

Country Link
US (1) US6423116B1 (es)
EP (1) EP1021569B1 (es)
AT (1) ATE221130T1 (es)
AU (1) AU762057B2 (es)
CA (1) CA2302267C (es)
DE (2) DE19717750C2 (es)
ES (1) ES2180184T3 (es)
WO (1) WO1998048057A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011001288A2 (en) 2009-06-29 2011-01-06 Bairong Li Metal reduction processes, metallurgical processes and products and apparatus
US8999021B2 (en) * 2010-04-13 2015-04-07 Ineos Usa Llc Methods for gasification of carbonaceous materials
US8585789B2 (en) * 2010-04-13 2013-11-19 Ineos Usa Llc Methods for gasification of carbonaceous materials
IT201900002081A1 (it) 2019-02-13 2020-08-13 Danieli Off Mecc Impianto di riduzione diretta e relativo processo

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1792507A (en) * 1926-06-10 1931-02-17 William W Percy Process of reducing the iron in iron oxides to its metallic form
US1832731A (en) * 1927-08-25 1931-11-17 Howard J Pardee Treatment of iron ores
US1863804A (en) * 1928-08-28 1932-06-21 William W Percy Process for reducing iron oxide ore to its metallic form
DE1178869B (de) * 1959-11-27 1964-10-01 Huettenwerk Oberhausen Ag Anlage und Verfahren zur Herstellung von Eisen-schwamm aus Stueckerz oder Agglomeraten
DE1201377B (de) * 1961-11-23 1965-09-23 Huettenwerk Oberhausen Ag Verfahren und Anlage zur Herstellung von Eisen-schwamm aus Eisenerz in einem Reduktions-schacht mittels Reduktionsgas
FR1521338A (fr) * 1966-06-22 1968-04-19 Ministerul Ind Metalurgice Procédé et appareil pour la réduction du minerai de fer
FR2049293A5 (en) 1969-06-05 1971-03-26 Armco Steel Corp Reduction of iron ores
US3912501A (en) * 1971-05-11 1975-10-14 Castejon Javier Gonzalez De Method for the production of iron and steel
US3948646A (en) * 1972-09-23 1976-04-06 Thyssen Niederrhein Ag Hutten- Und Walzwerke Method of direct reduction of iron ores
FR2338994A1 (fr) * 1976-01-20 1977-08-19 Renault Procede d'elaboration siderurgique a partir de minerais pre-reduits
JPS59123707A (ja) * 1982-12-28 1984-07-17 Kawasaki Steel Corp 溶融還元炉反応生成ガスの利用方法
DE3928415A1 (de) * 1989-08-28 1991-03-07 Kortec Ag Verfahren zur herstellung von stahl

Also Published As

Publication number Publication date
US6423116B1 (en) 2002-07-23
WO1998048057A1 (de) 1998-10-29
DE59804922D1 (de) 2002-08-29
DE19717750C2 (de) 1999-04-29
CA2302267A1 (en) 1998-10-29
AU8207198A (en) 1998-11-13
EP1021569B1 (de) 2002-07-24
ATE221130T1 (de) 2002-08-15
CA2302267C (en) 2009-12-01
EP1021569A1 (de) 2000-07-26
AU762057B2 (en) 2003-06-19
DE19717750A1 (de) 1998-10-22

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