BE809209A - Prodn of reducing gases for blast furnaces - by deoxidn and heating of blast furnace waste gases - Google Patents

Prodn of reducing gases for blast furnaces - by deoxidn and heating of blast furnace waste gases

Info

Publication number
BE809209A
BE809209A BE6044411A BE6044411A BE809209A BE 809209 A BE809209 A BE 809209A BE 6044411 A BE6044411 A BE 6044411A BE 6044411 A BE6044411 A BE 6044411A BE 809209 A BE809209 A BE 809209A
Authority
BE
Belgium
Prior art keywords
blast furnace
heating
gases
blast
deoxidn
Prior art date
Application number
BE6044411A
Other languages
French (fr)
Original Assignee
Centre Rech Metallurgique
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 Centre Rech Metallurgique filed Critical Centre Rech Metallurgique
Priority to BE6044411A priority Critical patent/BE809209A/en
Publication of BE809209A publication Critical patent/BE809209A/en
Priority to DE19742459966 priority patent/DE2459966A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/002—Heated electrically (plasma)
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • 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]
    • 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
    • Y02P10/25—Process efficiency

Landscapes

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

Abstract

Hot reducing gases contg. mainly CO and H2 are produced by (a) recovering the waste gas from the mouth of a blast furnace; (b) deoxidising the gas with a suitable combustible material; and (c) heating the product to 1700-2500 degrees C (pref. with a plasma torch, opt. after preheating by heat exchange) for injection into the hearth of the blast furnace, e.g. through the principal tuyeres or through auxiliary tuyeres in the vicinity thereof. Suitable combustible materials are coke-oven gas, CH4, natural gas, heavy fuel oil, bitumen, coal, lignite and oil shale.
BE6044411A 1973-12-27 1973-12-27 Prodn of reducing gases for blast furnaces - by deoxidn and heating of blast furnace waste gases BE809209A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE6044411A BE809209A (en) 1973-12-27 1973-12-27 Prodn of reducing gases for blast furnaces - by deoxidn and heating of blast furnace waste gases
DE19742459966 DE2459966A1 (en) 1973-12-27 1974-12-18 Prodn of reducing gases for blast furnaces - by gasification of liq. hyd-rocarbons and heating the gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE6044411A BE809209A (en) 1973-12-27 1973-12-27 Prodn of reducing gases for blast furnaces - by deoxidn and heating of blast furnace waste gases

Publications (1)

Publication Number Publication Date
BE809209A true BE809209A (en) 1974-04-16

Family

ID=3874539

Family Applications (1)

Application Number Title Priority Date Filing Date
BE6044411A BE809209A (en) 1973-12-27 1973-12-27 Prodn of reducing gases for blast furnaces - by deoxidn and heating of blast furnace waste gases

Country Status (1)

Country Link
BE (1) BE809209A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215721A1 (en) * 1985-09-20 1987-03-25 Institut De Recherches De La Siderurgie Francaise (Irsid) Process and device for the repair of an overheated gas conduit lining by a plasma torch
LU91493B1 (en) * 2008-10-31 2010-05-03 Wurth Paul Sa Method for operating a blast furnace and blast furnace installation
WO2019057930A1 (en) * 2017-09-25 2019-03-28 Paul Wurth S.A. Method for producing hot synthesis gas, in particular for use in blast furnace operation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215721A1 (en) * 1985-09-20 1987-03-25 Institut De Recherches De La Siderurgie Francaise (Irsid) Process and device for the repair of an overheated gas conduit lining by a plasma torch
FR2587697A1 (en) * 1985-09-20 1987-03-27 Siderurgie Fse Inst Rech PROCESS AND DEVICE FOR REPAIRING THE REFRACTORY LINING OF A GAS LINE OVERHEATED BY A PLASMA TORCH
LU91493B1 (en) * 2008-10-31 2010-05-03 Wurth Paul Sa Method for operating a blast furnace and blast furnace installation
WO2019057930A1 (en) * 2017-09-25 2019-03-28 Paul Wurth S.A. Method for producing hot synthesis gas, in particular for use in blast furnace operation
LU100453B1 (en) * 2017-09-25 2019-03-29 Wurth Paul Sa Method for Producing a Synthesis Gas, in particular for use in Blast Furnace Operation
EA039785B1 (en) * 2017-09-25 2022-03-14 Поль Вурт С.А. Method for producing hot synthesis gas for use in blast furnace operation

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: CENTRE DE RECHERCHES METALLURGIQUES - CENTRUM VO

Effective date: 19881231