CA1054800A - Method and apparatus for direct reduction of iron ore - Google Patents

Method and apparatus for direct reduction of iron ore

Info

Publication number
CA1054800A
CA1054800A CA233,262A CA233262A CA1054800A CA 1054800 A CA1054800 A CA 1054800A CA 233262 A CA233262 A CA 233262A CA 1054800 A CA1054800 A CA 1054800A
Authority
CA
Canada
Prior art keywords
gas
hydrogen
stack
carbon
temperature
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
CA233,262A
Other languages
English (en)
French (fr)
Inventor
Georg Lange
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.)
Thyssen Purofer GmbH
Original Assignee
Thyssen Purofer GmbH
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 Thyssen Purofer GmbH filed Critical Thyssen Purofer GmbH
Application granted granted Critical
Publication of CA1054800A publication Critical patent/CA1054800A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
    • C01B3/02—Production of hydrogen; Production of gaseous mixtures containing hydrogen
    • C01B3/06—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen with inorganic reducing agents
    • C01B3/12—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen with inorganic reducing agents by reaction of water vapour with carbon monoxide
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/042—Purification by adsorption on solids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465—Composition of the impurity
    • C01B2203/0475—Composition of the impurity the impurity being carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465—Composition of the impurity
    • C01B2203/0485—Composition of the impurity the impurity being a sulfur compound
    • 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
    • C21B2100/26—Increasing the gas reduction potential of recycled exhaust gases by adding additional fuel in recirculation pipes
    • 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
    • C21B2100/42—Sulphur removal
    • 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
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • 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)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Industrial Gases (AREA)
CA233,262A 1974-08-13 1975-08-11 Method and apparatus for direct reduction of iron ore Expired CA1054800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742438790 DE2438790B2 (de) 1974-08-13 1974-08-13 Verfahren und anlage zur reduktion von eisenerzen, insbesondere von eisenerzpellets

Publications (1)

Publication Number Publication Date
CA1054800A true CA1054800A (en) 1979-05-22

Family

ID=5923082

Family Applications (1)

Application Number Title Priority Date Filing Date
CA233,262A Expired CA1054800A (en) 1974-08-13 1975-08-11 Method and apparatus for direct reduction of iron ore

Country Status (10)

Country Link
US (1) US4046555A (enExample)
BE (1) BE832231A (enExample)
BR (1) BR7505142A (enExample)
CA (1) CA1054800A (enExample)
DE (1) DE2438790B2 (enExample)
ES (1) ES440129A1 (enExample)
FR (1) FR2281984A1 (enExample)
IN (1) IN143244B (enExample)
TR (1) TR18722A (enExample)
ZA (1) ZA755080B (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108636A (en) * 1974-08-13 1978-08-22 Thyssen Purofer Gmbh Method of the direct reduction of iron ore
DE2620462A1 (de) * 1976-05-08 1977-11-24 Kloeckner Humboldt Deutz Ag Verfahren zum vergasen von festen, fluessigen oder gasfoermigen kohlenstofftraegern, insbesondere zur herstellung eines reduktionsgases fuer metallurgische prozesse und vorrichtung zur durchfuehrung des verfahrens
DE2735565C2 (de) * 1977-08-06 1986-01-02 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Einhitziges Verfahren zur Erzeugung von im wesentlichen aus Kohlenoxid und Wasserstoff bestehenden Reduktionsgasen für Erzreduktionen und Vorrichtung zu seiner Durchführung
US4173465A (en) * 1978-08-15 1979-11-06 Midrex Corporation Method for the direct reduction of iron using gas from coal
US4225340A (en) * 1979-06-12 1980-09-30 Midrex Corporation Method for the direct reduction of iron using gas from coal
US4246024A (en) * 1979-10-31 1981-01-20 Grupo Industrial Alfa, S.A. Method for the gaseous reduction of metal ores using reducing gas produced by gasification of solid or liquid fossil fuels
US4365789A (en) * 1980-09-15 1982-12-28 Midrex Corporation Apparatus for the direct reduction of iron in a shaft furnace using gas from coal
US4331470A (en) * 1980-09-15 1982-05-25 Midrex Corporation Method for the direct reduction of iron in a shaft furnace using gas from coal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1638684A (en) * 1922-09-27 1927-08-09 Norsk Staal Elek Sk Gas Redukt Reduction process using circulating reducing gases
US2740706A (en) * 1951-10-10 1956-04-03 Texaco Development Corp Method of reducing metal oxides
FR1118643A (fr) * 1954-02-02 1956-06-08 Norsk Hydro Elektrisk Procédé de préparation de fer spongieux avec des agents de réduction gazeux
DE2307924B2 (de) * 1973-02-17 1975-12-18 Rheinische Braunkohlenwerke Ag, 5000 Koeln Verfahren zur Direktreduktion von Eisenerzen

Also Published As

Publication number Publication date
IN143244B (enExample) 1977-10-22
FR2281984A1 (fr) 1976-03-12
BR7505142A (pt) 1976-08-03
ES440129A1 (es) 1977-03-01
DE2438790A1 (de) 1976-02-26
FR2281984B1 (enExample) 1979-08-24
US4046555A (en) 1977-09-06
ZA755080B (en) 1976-09-29
TR18722A (tr) 1977-08-10
DE2438790B2 (de) 1976-09-09
BE832231A (fr) 1975-12-01
AU8384375A (en) 1977-02-17

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