WO2006092549A3 - Process and plant for gas-based direct steelmaking - Google Patents

Process and plant for gas-based direct steelmaking Download PDF

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Publication number
WO2006092549A3
WO2006092549A3 PCT/GB2006/000302 GB2006000302W WO2006092549A3 WO 2006092549 A3 WO2006092549 A3 WO 2006092549A3 GB 2006000302 W GB2006000302 W GB 2006000302W WO 2006092549 A3 WO2006092549 A3 WO 2006092549A3
Authority
WO
WIPO (PCT)
Prior art keywords
metal
gas
melt
arm
post
Prior art date
Application number
PCT/GB2006/000302
Other languages
French (fr)
Other versions
WO2006092549A2 (en
Inventor
Noel Warner
Original Assignee
Noel Warner
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 Noel Warner filed Critical Noel Warner
Priority to AU2006219757A priority Critical patent/AU2006219757A1/en
Priority to GB0718926A priority patent/GB2438570B/en
Publication of WO2006092549A2 publication Critical patent/WO2006092549A2/en
Publication of WO2006092549A3 publication Critical patent/WO2006092549A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/567—Manufacture of steel by other methods operating in a continuous way
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Continuous production of liquid steel or alloy is performed in a closed loop melt circulation system comprised of a reduction arm (1) and a post-combustion arm (2) with product molten metal being circulated by gas-lift pump (3) and siphon (4). Preheated reducing gas (12) is passed countercurrently to the melt with thermochemical energy requirements being transported by the metal from the post-combustion arm. Ore fines (5) are distributed onto the surface of the melt at (10) to form a thin layer of molten oxidic material, which is transported along whilst undergoing gaseous reduction. An overflow weir (7) and phase disengagement region (8) removes slag (9). Carbon and hydrogen containing gases are not permitted direct access to the metal, so decarburisation and desiliconisation are not required. If natural gas is the reductant, neither is desulphurisation necessary. Accordingly, excess refined liquid metal (11) can be withdrawn or overflown directly as product.
PCT/GB2006/000302 2005-03-02 2006-01-31 Process and plant for gas-based direct steelmaking WO2006092549A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2006219757A AU2006219757A1 (en) 2005-03-02 2006-01-31 Process and plant for gas-based direct steelmaking
GB0718926A GB2438570B (en) 2005-03-02 2006-01-31 Process and plant for gas-based direct steelmaking

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0504260.1 2005-03-02
GBGB0504260.1A GB0504260D0 (en) 2005-03-02 2005-03-02 Process and plant for gas-based direct steelmaking

Publications (2)

Publication Number Publication Date
WO2006092549A2 WO2006092549A2 (en) 2006-09-08
WO2006092549A3 true WO2006092549A3 (en) 2006-12-21

Family

ID=34430470

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/000302 WO2006092549A2 (en) 2005-03-02 2006-01-31 Process and plant for gas-based direct steelmaking

Country Status (3)

Country Link
AU (1) AU2006219757A1 (en)
GB (2) GB0504260D0 (en)
WO (1) WO2006092549A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0608080D0 (en) * 2006-04-25 2006-05-31 Warner Noel A Co-production of steel, titanium and high-grade oxide
SK50222014A3 (en) 2011-11-17 2014-09-04 Nucor Corporation Method of continuous casting thin steel strip
GB201223252D0 (en) 2012-12-21 2013-02-06 Warner Noel A Zero gas emission continuous steelmaking

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB939377A (en) * 1960-10-10 1963-10-16 Inst Francais Du Petrole Process for the production of cast iron or steel
US5069715A (en) * 1990-04-02 1991-12-03 Regents Of The University Of Minnesota Direct smelting process and apparatus
WO2004007778A1 (en) * 2002-07-17 2004-01-22 Noel Alfred Warner Continuous steelmaking plant
WO2005118890A2 (en) * 2004-05-29 2005-12-15 Noel Warner Recovery of steel from contaminated scrap

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2219160C1 (en) * 2002-06-25 2003-12-20 Институт катализа им. Г.К.Борескова СО РАН Method for production of carbonyl compounds from di- and polyene cyclic hydrocarbons and derivatives thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB939377A (en) * 1960-10-10 1963-10-16 Inst Francais Du Petrole Process for the production of cast iron or steel
US5069715A (en) * 1990-04-02 1991-12-03 Regents Of The University Of Minnesota Direct smelting process and apparatus
WO2004007778A1 (en) * 2002-07-17 2004-01-22 Noel Alfred Warner Continuous steelmaking plant
WO2005118890A2 (en) * 2004-05-29 2005-12-15 Noel Warner Recovery of steel from contaminated scrap

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
WARNER N A: "CONDUCTIVE HEATING AND MELT CIRCULATION IN PYROMETALLURGY", TRANSACTIONS - INSTITUTION OF MINING AND METALLURGY. SECTION C. MINERAL PROCESSING AND EXTRACTIVE METALLURGY, LONDON, GB, vol. 112, December 2003 (2003-12-01), pages 141 - 154, XP008058918, ISSN: 0371-9553 *
WARNER N A: "CONTINUOUS STEELMAKING BASED ON NATURAL GAS", AISTECH. IRON AND STEEL TECHNOLOGY CONFERENCE PROCEEDINGS, ASSOCIATION FOR IRON AND STEEL TECHNOLOGY,, US, vol. 2, 15 September 2004 (2004-09-15), pages 419 - 431, XP008058919 *

Also Published As

Publication number Publication date
WO2006092549A2 (en) 2006-09-08
GB2438570B (en) 2011-01-26
GB2438570A (en) 2007-11-28
GB0718926D0 (en) 2007-11-07
AU2006219757A1 (en) 2006-09-08
GB0504260D0 (en) 2005-04-06

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