EP0271464A3 - A method of producing liquid crude iron and high-grade top gas - Google Patents

A method of producing liquid crude iron and high-grade top gas Download PDF

Info

Publication number
EP0271464A3
EP0271464A3 EP87850378A EP87850378A EP0271464A3 EP 0271464 A3 EP0271464 A3 EP 0271464A3 EP 87850378 A EP87850378 A EP 87850378A EP 87850378 A EP87850378 A EP 87850378A EP 0271464 A3 EP0271464 A3 EP 0271464A3
Authority
EP
European Patent Office
Prior art keywords
top gas
crude iron
producing liquid
liquid crude
grade top
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.)
Withdrawn
Application number
EP87850378A
Other languages
German (de)
French (fr)
Other versions
EP0271464A2 (en
Inventor
Per H. Collin
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.)
Nonox Engineering AB
Original Assignee
Nonox Engineering AB
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 Nonox Engineering AB filed Critical Nonox Engineering AB
Publication of EP0271464A2 publication Critical patent/EP0271464A2/en
Publication of EP0271464A3 publication Critical patent/EP0271464A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • 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
    • C21B2100/28—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
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Air Supply (AREA)

Abstract

A blast furnace is fed by a charge of conventional composition and a blast is used that contains about 50% oxygen and 20% water vapour, balance nitrogen. Additional fuel in the form of coal dust and/or oil is supplied to the raceways. Normal temperatures are maintained in the hearth and top zones. As compared with conventional operation a very high specific crude iron production per m² of hearth area and 24 hours will result. The molecular ratio CO+H₂/N₂ of the top gas will be higher than 2.8 which makes the top gas suitable for ammonia production.
EP87850378A 1986-12-05 1987-12-03 A method of producing liquid crude iron and high-grade top gas Withdrawn EP0271464A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8605226A SE8605226L (en) 1986-12-05 1986-12-05 SYNTES GAS FROM THE MASUGN
SE8605226 1986-12-05

Publications (2)

Publication Number Publication Date
EP0271464A2 EP0271464A2 (en) 1988-06-15
EP0271464A3 true EP0271464A3 (en) 1989-10-25

Family

ID=20366530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87850378A Withdrawn EP0271464A3 (en) 1986-12-05 1987-12-03 A method of producing liquid crude iron and high-grade top gas

Country Status (4)

Country Link
EP (1) EP0271464A3 (en)
DK (1) DK421688D0 (en)
SE (1) SE8605226L (en)
WO (1) WO1988004329A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6190632B1 (en) 1999-02-25 2001-02-20 Praxair Technology, Inc. Method and apparatus for the production of ammonia utilizing cryogenic rectification
EP2641980B1 (en) * 2008-03-18 2018-10-31 JFE Steel Corporation Method for separating blast furnace gas
CN116445671B (en) * 2023-05-29 2024-10-01 山东钢铁集团永锋临港有限公司 High-efficiency utilization method of blast furnace gas

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593257A (en) * 1948-08-26 1952-04-15 Standard Oil Dev Co Blast furnace operation
US2776885A (en) * 1953-01-06 1957-01-08 Stamicarbon Process for producing ferrosilicon
US4013454A (en) * 1975-03-04 1977-03-22 Robert Kenneth Jordan Coproduction of iron with methanol and ammonia
US4529440A (en) * 1978-07-21 1985-07-16 Jordan Robert K Chemicals from coal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1091146A (en) * 1953-01-06 1955-04-07 Stamicarbon Process for the preparation of ferro-silicon
US2824793A (en) * 1956-11-27 1958-02-25 Alan N Mann Process for producing steel by high temperature gaseous reduction of iron oxide
DE1944124A1 (en) * 1969-06-04 1971-01-28 Mifuji Iron Works Co Ltd cupola
US3985520A (en) * 1973-05-30 1976-10-12 Louis Gold Gasification process and apparatus
US4052173A (en) * 1974-07-29 1977-10-04 Dynecology Incorporated Simultaneous gasification of coal and pyrolysis of organic solid waste materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593257A (en) * 1948-08-26 1952-04-15 Standard Oil Dev Co Blast furnace operation
US2776885A (en) * 1953-01-06 1957-01-08 Stamicarbon Process for producing ferrosilicon
US4013454A (en) * 1975-03-04 1977-03-22 Robert Kenneth Jordan Coproduction of iron with methanol and ammonia
US4529440A (en) * 1978-07-21 1985-07-16 Jordan Robert K Chemicals from coal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TRANSACTIONS ISIJ vol. 14, 1974, pages 122-132, Tokyo, Japan; T. OKAMOTO et al.: "Blast furnace operation with 25 to 60% oxygen-blast to make top gas composition suited for ammonia synthesis" *

Also Published As

Publication number Publication date
WO1988004329A1 (en) 1988-06-16
SE8605226L (en) 1988-06-06
DK421688A (en) 1988-07-28
EP0271464A2 (en) 1988-06-15
DK421688D0 (en) 1988-07-28
SE8605226D0 (en) 1986-12-05

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Inventor name: COLLIN, PER H.