GB657824A - Improvements in and relating to the direct reduction of iron ores - Google Patents

Improvements in and relating to the direct reduction of iron ores

Info

Publication number
GB657824A
GB657824A GB2086348A GB2086348A GB657824A GB 657824 A GB657824 A GB 657824A GB 2086348 A GB2086348 A GB 2086348A GB 2086348 A GB2086348 A GB 2086348A GB 657824 A GB657824 A GB 657824A
Authority
GB
United Kingdom
Prior art keywords
gases
furnace
carbon monoxide
reducing
direct reduction
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
Application number
GB2086348A
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.)
JOHN MILES AND PARTNERS LONDON
Original Assignee
JOHN MILES AND PARTNERS LONDON
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 JOHN MILES AND PARTNERS LONDON filed Critical JOHN MILES AND PARTNERS LONDON
Priority to GB2086348A priority Critical patent/GB657824A/en
Publication of GB657824A publication Critical patent/GB657824A/en
Expired 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
    • 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
    • C21B2100/28—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
    • 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 And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

In a process for the direct reduction of iron ore, a reducing gas and the ore are passed in counter current through a furnace, the used gases are burned with an oxygen rich gas over or in an incandescent bed of carbonaceous fuel and the regenerated reducing gases are recycled to the furnace. The reducing gases may be carbon monoxide or hydrogen and carbon monoxide. The regenerated gases may be preheated by combustion of part of the used gases from the furnace. The bed of carbonaceous fuel may be kept incandescent and supply heat for the regeneration by burning part of it with 80 per cent oxygen. The used gases may be dried before regeneration, in which case carbon monoxide alone is the reducing gas.
GB2086348A 1948-08-06 1948-08-06 Improvements in and relating to the direct reduction of iron ores Expired GB657824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2086348A GB657824A (en) 1948-08-06 1948-08-06 Improvements in and relating to the direct reduction of iron ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2086348A GB657824A (en) 1948-08-06 1948-08-06 Improvements in and relating to the direct reduction of iron ores

Publications (1)

Publication Number Publication Date
GB657824A true GB657824A (en) 1951-09-26

Family

ID=10153009

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2086348A Expired GB657824A (en) 1948-08-06 1948-08-06 Improvements in and relating to the direct reduction of iron ores

Country Status (1)

Country Link
GB (1) GB657824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014040997A1 (en) * 2012-09-14 2014-03-20 Voestalpine Stahl Gmbh Method for heating process gases for direct reduction plants

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014040997A1 (en) * 2012-09-14 2014-03-20 Voestalpine Stahl Gmbh Method for heating process gases for direct reduction plants
CN104662175A (en) * 2012-09-14 2015-05-27 沃斯特阿尔派因钢铁有限责任公司 Method for heating process gases for direct reduction plants

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