WO2009037587A3 - Method and apparatus for the direct reduction of iron ores utilizing gas from a melter-gasifier - Google Patents

Method and apparatus for the direct reduction of iron ores utilizing gas from a melter-gasifier Download PDF

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Publication number
WO2009037587A3
WO2009037587A3 PCT/IB2008/003455 IB2008003455W WO2009037587A3 WO 2009037587 A3 WO2009037587 A3 WO 2009037587A3 IB 2008003455 W IB2008003455 W IB 2008003455W WO 2009037587 A3 WO2009037587 A3 WO 2009037587A3
Authority
WO
WIPO (PCT)
Prior art keywords
melter
gasifier
reduction reactor
gas
gas stream
Prior art date
Application number
PCT/IB2008/003455
Other languages
French (fr)
Other versions
WO2009037587A2 (en
Inventor
Eugenio Zendejas-Martinez
Pablo-Enrique Duarte-Escareno
Original Assignee
Hyl Technologies Sa De Cv
Eugenio Zendejas-Martinez
Pablo-Enrique Duarte-Escareno
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 Hyl Technologies Sa De Cv, Eugenio Zendejas-Martinez, Pablo-Enrique Duarte-Escareno filed Critical Hyl Technologies Sa De Cv
Publication of WO2009037587A2 publication Critical patent/WO2009037587A2/en
Publication of WO2009037587A3 publication Critical patent/WO2009037587A3/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
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C21B13/002—Reduction of iron ores by passing through a heated column of carbon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or 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
    • C21B2100/24—Increasing the gas reduction potential of recycled exhaust gases by shift reactions
    • 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
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
    • 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
    • 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
    • C21B2100/62—Energy conversion other than by heat exchange, e.g. by use of exhaust gas in energy production
    • 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
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
    • 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)
  • Carbon And Carbon Compounds (AREA)
  • Manufacture Of Iron (AREA)

Abstract

A method and apparatus for producing a metallized product (DRI) in a downstream direct reduction reactor utilizing the reducing gas effluent either from an upstream reduction reactor associated with a melter-gasifier or from the melter-gasifier itself (in the absence of such upstream reduction reactor), wherein said reducing gas is reacted with water in a shifter and then CO2 is removed from a combined stream of said shifted gas with recycled gas effluent from said downstream reactor in an adsorption CO2 removal unit. Separation of CO2 produces a lean gas stream and a CO2 laden gas stream. The CO2 lean gas stream is utilized for producing DRI in said downstream reduction reactor and the CO2 laden gas stream is used as fuel in a boiler for producing steam which serves then at least to react with carbon monoxide in said shifter to produce hydrogen and preferably also for power generation with resulting overall increased plant efficiency.
PCT/IB2008/003455 2007-08-08 2008-08-08 Method and apparatus for the direct reduction of iron ores utilizing gas from a melter-gasifier WO2009037587A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96416007P 2007-08-08 2007-08-08
US60/964,160 2007-08-08

Publications (2)

Publication Number Publication Date
WO2009037587A2 WO2009037587A2 (en) 2009-03-26
WO2009037587A3 true WO2009037587A3 (en) 2009-08-06

Family

ID=40404484

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/003455 WO2009037587A2 (en) 2007-08-08 2008-08-08 Method and apparatus for the direct reduction of iron ores utilizing gas from a melter-gasifier

Country Status (1)

Country Link
WO (1) WO2009037587A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010128402A1 (en) * 2009-05-08 2010-11-11 Hyl Technologies, S.A. De C.V. Integrated steel plant with production of hot or cold dri
AT508523B1 (en) 2009-07-31 2011-04-15 Siemens Vai Metals Tech Gmbh REFORM GAS-BASED REDUCTION PROCESS AND DEVICE WITH DECARBONIZING THE COMBUSTION GAS FOR THE REFORMER
KR101142501B1 (en) * 2009-12-28 2012-05-07 주식회사 포스코 Apparatus for manufacturing molten irons
IT1402250B1 (en) * 2010-09-29 2013-08-28 Danieli Off Mecc PROCEDURE AND EQUIPMENT FOR THE PRODUCTION OF DIRECT REDUCTION IRON USING A REDUCING GAS SOURCE INCLUDING HYDROGEN AND CARBON MONOXIDE
AT510565B1 (en) 2011-06-21 2012-05-15 Siemens Vai Metals Tech Gmbh DEVICE FOR REGULATING PROCESS GASES IN A PLANT FOR PRODUCING DIRECTLY REDUCED METAL ORCHES
US9546409B2 (en) * 2011-08-20 2017-01-17 Hyl Technologies, S.A. De C.V. Process for producing direct reduced iron (DRI) utilizing gases derived from coal
AT511888B1 (en) * 2011-09-13 2013-06-15 Siemens Vai Metals Tech Gmbh DEVICE FOR ENERGY OPTIMIZATION IN A PLANT FOR MANUFACTURING DIRECTLY REDUCED METAL ORCHES
EP2626124A1 (en) * 2012-02-13 2013-08-14 Siemens VAI Metals Technologies GmbH Method and device for reducing the raw materials containing iron oxide
US8709131B2 (en) 2012-02-15 2014-04-29 Midrex Technologies, Inc. Method and system for the production of direct reduced iron using a synthesis gas with a high carbon monoxide content
EP2650385A1 (en) 2012-04-12 2013-10-16 Siemens VAI Metals Technologies GmbH Method and device for the manufacture of liquid pig iron and/or sponge iron
EP2738268A1 (en) * 2012-11-29 2014-06-04 Siemens VAI Metals Technologies GmbH Method for reduction of metal oxides to metallised material in a direct reduction process
US10065857B2 (en) 2013-03-12 2018-09-04 Midrex Technologies, Inc. Systems and methods for generating carbon dioxide for use as a reforming oxidant in making syngas or reformed gas
EP3034631A1 (en) * 2014-12-17 2016-06-22 Primetals Technologies Austria GmbH Direct reduction method with gas cooling
US11427877B2 (en) 2017-09-21 2022-08-30 Nucor Corporation Direct reduced iron (DRI) heat treatment, products formed therefrom, and use thereof
LU101960B1 (en) * 2020-07-28 2022-01-28 Wurth Paul Sa Method for operating a metallurgic plant for producing iron products

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19708034A1 (en) * 1996-03-05 1997-10-30 Voest Alpine Ind Anlagen Production of liquid pig iron or liquid steel pre-products
US5958107A (en) * 1993-12-15 1999-09-28 Bechtel Croup, Inc. Shift conversion for the preparation of reducing gas
US6478841B1 (en) * 2001-09-12 2002-11-12 Techint Technologies Inc. Integrated mini-mill for iron and steel making

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5958107A (en) * 1993-12-15 1999-09-28 Bechtel Croup, Inc. Shift conversion for the preparation of reducing gas
DE19708034A1 (en) * 1996-03-05 1997-10-30 Voest Alpine Ind Anlagen Production of liquid pig iron or liquid steel pre-products
US6478841B1 (en) * 2001-09-12 2002-11-12 Techint Technologies Inc. Integrated mini-mill for iron and steel making

Also Published As

Publication number Publication date
WO2009037587A2 (en) 2009-03-26

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