CA2019050A1 - Method and apparatus for steel making - Google Patents

Method and apparatus for steel making

Info

Publication number
CA2019050A1
CA2019050A1 CA2019050A CA2019050A CA2019050A1 CA 2019050 A1 CA2019050 A1 CA 2019050A1 CA 2019050 A CA2019050 A CA 2019050A CA 2019050 A CA2019050 A CA 2019050A CA 2019050 A1 CA2019050 A1 CA 2019050A1
Authority
CA
Canada
Prior art keywords
reactor
gases
steel
reforming
reactors
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.)
Granted
Application number
CA2019050A
Other languages
French (fr)
Other versions
CA2019050C (en
Inventor
Ghulam Nabi
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 CA002019050A priority Critical patent/CA2019050C/en
Priority to AU79745/91A priority patent/AU7974591A/en
Priority to PCT/CA1991/000188 priority patent/WO1991019819A1/en
Priority to JP3169036A priority patent/JPH04231409A/en
Publication of CA2019050A1 publication Critical patent/CA2019050A1/en
Priority to US07/979,379 priority patent/US5286273A/en
Priority to US08/162,936 priority patent/US5402990A/en
Application granted granted Critical
Publication of CA2019050C publication Critical patent/CA2019050C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

This invention provides a method and appratus whereby steel of various compositions may be produced from iron ore and coal through a series of stages without the intermediate production of liquid iron. A reforming reactor receives top gases from the steel making reactors, and converts them to high reduction potential gases which are returned to the steel making reactors. The iron ore and reductants, such as coal, are charged to a controlled atmosphere reactor which may be an inclined rotary cylindrical shaft. From the controlled atmosphere reactor the charge is moved to a potential shift reactor which is inclined or vertical and encounters increasing heat and rising gases for converting the carbonised sponge into a semi-molten state. The charge then passes to a high temperature reactor where it encounters the reducing gases from the reforming reactor and preheated oxygen to create temperature in which steel is made. Hot gases from the high temperature reactor pass through the PSR and the CAR and are returned to the reforming reactors to complete the cycle.
CA002019050A 1990-06-14 1990-06-14 Method and apparatus for steel making Expired - Fee Related CA2019050C (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002019050A CA2019050C (en) 1990-06-14 1990-06-14 Method and apparatus for steel making
AU79745/91A AU7974591A (en) 1990-06-14 1991-06-05 Method and apparatus for steel making
PCT/CA1991/000188 WO1991019819A1 (en) 1990-06-14 1991-06-05 Method and apparatus for steel making
JP3169036A JPH04231409A (en) 1990-06-14 1991-06-14 Steel manufacturing plant apparatus
US07/979,379 US5286273A (en) 1990-06-14 1992-11-19 Method for steel making in high temperature reactor
US08/162,936 US5402990A (en) 1990-06-14 1993-12-08 Steel making plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002019050A CA2019050C (en) 1990-06-14 1990-06-14 Method and apparatus for steel making

Publications (2)

Publication Number Publication Date
CA2019050A1 true CA2019050A1 (en) 1991-12-14
CA2019050C CA2019050C (en) 1997-10-14

Family

ID=4145237

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002019050A Expired - Fee Related CA2019050C (en) 1990-06-14 1990-06-14 Method and apparatus for steel making

Country Status (3)

Country Link
JP (1) JPH04231409A (en)
CA (1) CA2019050C (en)
WO (1) WO1991019819A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2452712A (en) * 2007-09-11 2009-03-18 Yadollah Saboohi Use of a cyclonic heat exchanger in the production of sponge iron

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1551465A (en) * 1925-08-25 Ahfbed brttuinghatts
GB1089060A (en) * 1965-09-30 1967-11-01 Shell Int Research Process for recovery of iron from ore
GB1067805A (en) * 1965-11-08 1967-05-03 Shell Int Research Method for the preparation of iron or steel from ores
DE3318005C2 (en) * 1983-05-18 1986-02-20 Klöckner CRA Technologie GmbH, 4100 Duisburg Process for making iron
US4701214A (en) * 1986-04-30 1987-10-20 Midrex International B.V. Rotterdam Method of producing iron using rotary hearth and apparatus

Also Published As

Publication number Publication date
WO1991019819A1 (en) 1991-12-26
JPH04231409A (en) 1992-08-20
CA2019050C (en) 1997-10-14

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20050614