GB615720A - Improvements in or relating to the production of iron - Google Patents

Improvements in or relating to the production of iron

Info

Publication number
GB615720A
GB615720A GB17320/45A GB1732045A GB615720A GB 615720 A GB615720 A GB 615720A GB 17320/45 A GB17320/45 A GB 17320/45A GB 1732045 A GB1732045 A GB 1732045A GB 615720 A GB615720 A GB 615720A
Authority
GB
United Kingdom
Prior art keywords
gas
reducing gas
desulphurized
fresh
reducing
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
GB17320/45A
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
Priority to GB17320/45A priority Critical patent/GB615720A/en
Publication of GB615720A publication Critical patent/GB615720A/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
    • 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)

Abstract

Iron oxide ores are reduced by (a) bringing into contact with a desulphurized reducing gas at a temperature of 900-1,350 DEG F., said reducing gas consisting principally of hydrogen and methane but containing CO and CO2 in sum total less than 15 per cent by volume and minor amounts of H2 S and H2 O; (b) removing at least a portion of the spent gas, cooling it, mixing with fresh desulphurized reducing gas and recirculating, the amount of gas thus circulated being limited so as not to increase the combined percentage of CO and CO2 beyond said 15 per cent. Gases referred to are retort coal gas, oil gas and particularly coke oven gas, the step of fire heating the gas in the latter case being essential. In the examples, one part of fresh gas is mixed with (a) 2.77; (b) 1 part of spent gas for recirculation. Heat from the used gases may be employed to pre-heat incoming reducing gas.
GB17320/45A 1945-07-06 1945-07-06 Improvements in or relating to the production of iron Expired GB615720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17320/45A GB615720A (en) 1945-07-06 1945-07-06 Improvements in or relating to the production of iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17320/45A GB615720A (en) 1945-07-06 1945-07-06 Improvements in or relating to the production of iron

Publications (1)

Publication Number Publication Date
GB615720A true GB615720A (en) 1949-01-11

Family

ID=10093104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17320/45A Expired GB615720A (en) 1945-07-06 1945-07-06 Improvements in or relating to the production of iron

Country Status (1)

Country Link
GB (1) GB615720A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375327A1 (en) * 1975-10-14 1978-07-21 Hazen Research Direct steel prodn. from iron oxides - by reducing the oxides, forming iron carbide and charging to a basic oxygen furnace to obtain steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375327A1 (en) * 1975-10-14 1978-07-21 Hazen Research Direct steel prodn. from iron oxides - by reducing the oxides, forming iron carbide and charging to a basic oxygen furnace to obtain steel

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