GB1140958A - Process for suppressing carbon monoxide reversion in iron ore reduction reactions - Google Patents

Process for suppressing carbon monoxide reversion in iron ore reduction reactions

Info

Publication number
GB1140958A
GB1140958A GB33135/66A GB3313566A GB1140958A GB 1140958 A GB1140958 A GB 1140958A GB 33135/66 A GB33135/66 A GB 33135/66A GB 3313566 A GB3313566 A GB 3313566A GB 1140958 A GB1140958 A GB 1140958A
Authority
GB
United Kingdom
Prior art keywords
gas
iron ore
carbon monoxide
hydrogen sulphide
sulphur
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
GB33135/66A
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB1140958A publication Critical patent/GB1140958A/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
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Catalysts (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

1,140,958. Reducing iron ore. ESSO RESEARCH and ENG. CO. July 22, 1966 [July 30, 1965], No. 33135/66. Heading C7D. In a fluidized bed process for reducing oxidic iron ore with carbon monoxide-containing gas in which the latter has to be heated to a temperature within the range 800‹F. to 1500‹F. or heated through that range breakdown of carbon monoxide with deposition of carbon is suppressed by adding to the gas sulphur, hydrogen sulphide or a decomposable sulphur compound in such an amount as to provide a concentration of 1 to 1, 000 parts of sulphur per million parts of gas. Hydrogen sulphide is the preferred additive but many suitable organic compounds are listed. In a particular example spent reducing gases leaving a multi-stage reactor are cooled to remove water vapour, scrubbed to remove carbon dioxide, and, after the addition of hydrogen sulphide, reheated before being mixed with make-up gas produced by reaction of hydrocarbon gas with steam.
GB33135/66A 1965-07-30 1966-07-22 Process for suppressing carbon monoxide reversion in iron ore reduction reactions Expired GB1140958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US476159A US3377156A (en) 1965-07-30 1965-07-30 Process of reducing iron oxide ores with gases containing carbon monoxide

Publications (1)

Publication Number Publication Date
GB1140958A true GB1140958A (en) 1969-01-22

Family

ID=23890728

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33135/66A Expired GB1140958A (en) 1965-07-30 1966-07-22 Process for suppressing carbon monoxide reversion in iron ore reduction reactions

Country Status (5)

Country Link
US (1) US3377156A (en)
BR (1) BR6681712D0 (en)
DE (1) DE1508019B2 (en)
ES (1) ES329663A1 (en)
GB (1) GB1140958A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960544A (en) * 1972-11-29 1976-06-01 British Titan Limited Process for the production of iron-containing titaniferous particles
DE2614342C3 (en) * 1976-03-31 1985-12-12 Mannesmann AG, 4000 Düsseldorf Process for the production of iron powder with a fibrous structure
US4239530A (en) * 1979-01-10 1980-12-16 Board Of Control Of Michigan Technological University Process for producing metallized iron pellets
IT1177076B (en) * 1983-12-02 1987-08-26 Skf Steel Eng Ab PROCESS AND PLANT TO REDUCE OXIDE MATERIAL SIMULTANEOUSLY GENERATING A GAS SUITABLE FOR THE RECOVERY OF THERMAL ENERGY
AT402825B (en) * 1994-06-23 1997-09-25 Voest Alpine Ind Anlagen METHOD FOR DIRECTLY REDUCING IRON-OXIDATING MATERIAL

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2711368A (en) * 1949-12-01 1955-06-21 Exxon Research Engineering Co Process for reducing oxidic iron ore
US2740706A (en) * 1951-10-10 1956-04-03 Texaco Development Corp Method of reducing metal oxides
US2835557A (en) * 1955-03-30 1958-05-20 Int Nickel Co Method of producing nickel by the carbonyl process
US3020149A (en) * 1959-04-08 1962-02-06 Little Inc A Beneficiation of ores

Also Published As

Publication number Publication date
DE1508019A1 (en) 1969-02-27
BR6681712D0 (en) 1973-07-24
DE1508019B2 (en) 1976-09-02
ES329663A1 (en) 1967-06-01
US3377156A (en) 1968-04-09

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