MX166840B - Metodo para incrementar el contenido de carbono de hierro de reduccion directa - Google Patents

Metodo para incrementar el contenido de carbono de hierro de reduccion directa

Info

Publication number
MX166840B
MX166840B MX005648A MX564887A MX166840B MX 166840 B MX166840 B MX 166840B MX 005648 A MX005648 A MX 005648A MX 564887 A MX564887 A MX 564887A MX 166840 B MX166840 B MX 166840B
Authority
MX
Mexico
Prior art keywords
furnace
reformer
gas
conduit
introducing
Prior art date
Application number
MX005648A
Other languages
English (en)
Inventor
Paul Max Love
Bruce Gilbert Kelley
Original Assignee
Midrex Int Bv
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 Midrex Int Bv filed Critical Midrex Int Bv
Publication of MX166840B publication Critical patent/MX166840B/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
    • C21B13/02—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
    • C21B2100/60—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)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

La presente invención se refiere a un horno reductor del tipo de horno de cuba vertical que tiene una zona reductora superior, una zona reductora intermedia y uan zona inferior de control de carbono y descarga de producto, medios para introducir gas reductor entre los extremos del horno de cuba; medios para retirar producto metalizado de su parte inferior, y medios para separar el gas de alto horno reaccionado, desde ele xtremo superior del horno, la mejora caracterizada porque comprende: una fuente de gas de procesameinto; un primer horno reformador que contiene catalizador; medios para introducir el gas de procesamiento al reformador; un primer conducto que comunica entre la salida de gas del reformador y los medios para introducir gas reductor al horno de cuba; un segundo horno reformador que contiene catalizador; medios para introducir una mezcla de aire e hidrocarburo gaseoso al segundo horno reformador; un segundo conducto que comunica entre la salida de gas del segundo horno reformador y la zona de control de carbono y descarga de producto del horno de cuba; una fuente de gas natural; un tercer conducto que comunica entre la fuente de gas natural y el segundo conducto; y medios para controlar las cantidades respectivas de gas introducidas en la zona de descarga de producto desde el segundo reformador y la fuente de gas natural.
MX005648A 1986-03-21 1987-03-20 Metodo para incrementar el contenido de carbono de hierro de reduccion directa MX166840B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/842,513 US4702766A (en) 1986-03-21 1986-03-21 Method of increasing carbon content of direct reduced iron and apparatus

Publications (1)

Publication Number Publication Date
MX166840B true MX166840B (es) 1993-02-09

Family

ID=25287498

Family Applications (1)

Application Number Title Priority Date Filing Date
MX005648A MX166840B (es) 1986-03-21 1987-03-20 Metodo para incrementar el contenido de carbono de hierro de reduccion directa

Country Status (9)

Country Link
US (1) US4702766A (es)
JP (1) JPS62263910A (es)
AT (1) AT394394B (es)
CA (1) CA1287209C (es)
DE (1) DE3709071A1 (es)
GB (1) GB2188067B (es)
MX (1) MX166840B (es)
MY (1) MY100193A (es)
SU (1) SU1674693A3 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4897113A (en) * 1985-09-23 1990-01-30 Hylsa, S.A. Direct reduction process in reactor with hot discharge
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
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
US6342089B1 (en) 1997-09-02 2002-01-29 Mcgaa John R. Direct reduced iron pellets
DE602006018967D1 (de) * 2005-08-30 2011-01-27 Du Pont Erzreduktionsverfahren und titanoxid- und eisenmetallisierungsprodukt
WO2009052066A1 (en) * 2007-10-15 2009-04-23 E. I. Du Pont De Nemours And Company Ore reduction process using carbon based materials having a low sulfur content and titanium oxide and iron metallization product therefrom
US10508314B2 (en) 2015-06-24 2019-12-17 Midrex Technologies, Inc. Methods and systems for increasing the carbon content of sponge iron in a reduction furnace
US10316376B2 (en) * 2015-06-24 2019-06-11 Midrex Technologies, Inc. Methods and systems for increasing the carbon content of sponge iron in a reduction furnace
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
WO2018057025A1 (en) * 2016-09-20 2018-03-29 Midrex Technologies, Inc. Methods and systems for increasing the carbon content of sponge iron in a reduction furnace
IT201900002081A1 (it) * 2019-02-13 2020-08-13 Danieli Off Mecc Impianto di riduzione diretta e relativo processo
US12084730B2 (en) 2020-03-24 2024-09-10 Midrex Technologies, Inc. Methods and systems for increasing the carbon content of direct reduced iron in a reduction furnace
JP7424339B2 (ja) 2021-03-31 2024-01-30 Ｊｆｅスチール株式会社 塊成物製造用の原料粒子、塊成物製造用の原料粒子の製造方法、塊成物、塊成物の製造方法および還元鉄の製造方法

Family Cites Families (6)

* 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
US4224057A (en) * 1979-08-20 1980-09-23 Hylsa, S.A. Method for carburizing sponge iron
US4261734A (en) * 1979-09-04 1981-04-14 Hylsa, S.A. Method of making sponge iron
GB2064590B (en) * 1979-09-13 1984-07-25 Kobe Steel Ltd Gas reduction of iron oxide
US4333761A (en) * 1979-10-22 1982-06-08 Midrex Corporation Method for direct reduction of iron using high sulfur gas
DE3317701C2 (de) * 1983-05-16 1986-08-07 Hylsa S.A., Monterrey, N.L. Verfahren zum Betreiben eines Bewegtbett-Reduktionsreaktors mit vertikalem Schacht zum Reduzieren von Eisenerz zu Schwammeisen

Also Published As

Publication number Publication date
ATA64687A (de) 1991-09-15
GB2188067B (en) 1990-01-10
GB8706027D0 (en) 1987-04-15
GB2188067A (en) 1987-09-23
US4702766A (en) 1987-10-27
AT394394B (de) 1992-03-25
DE3709071A1 (de) 1987-09-24
JPS62263910A (ja) 1987-11-16
JPH0246644B2 (es) 1990-10-16
DE3709071C2 (es) 1993-08-05
CA1287209C (en) 1991-08-06
MY100193A (en) 1990-03-29
SU1674693A3 (ru) 1991-08-30

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