GB1218912A - Blast furnace operation - Google Patents

Blast furnace operation

Info

Publication number
GB1218912A
GB1218912A GB159369A GB159369A GB1218912A GB 1218912 A GB1218912 A GB 1218912A GB 159369 A GB159369 A GB 159369A GB 159369 A GB159369 A GB 159369A GB 1218912 A GB1218912 A GB 1218912A
Authority
GB
United Kingdom
Prior art keywords
furnace
iron
zone
mixed
gaseous
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
GB159369A
Inventor
Ivor Gray Nixon
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.)
British Iron and Steel Research Association BISRA
Original Assignee
British Iron and Steel Research Association BISRA
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 British Iron and Steel Research Association BISRA filed Critical British Iron and Steel Research Association BISRA
Priority to GB159369A priority Critical patent/GB1218912A/en
Publication of GB1218912A publication Critical patent/GB1218912A/en
Expired 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
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • 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
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • 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
    • 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
    • Y02P10/143—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
    • Y02P10/20—Recycling
    • 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)
  • Manufacture Of Iron (AREA)

Abstract

1,218,912. Reducing iron ores. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Jan.4, 1968 No.1593/69. Divided out of 1, 213, 641. Heading C7D. A blast furnace for producing molten iron or ferrous alloy is operated by partially or completely reacting the off-gas containing H 2 O and CO 2 , withdrawn from one of the reducing zones or the preheating zone of the furnace, with a gaseous, liquid or solid hydrocarbon fuel, e. g. methane, butane or naphtha, in a separate heated reaction system, e. g. a tubular heater and/or a regenerative heat exchanger, and preferably in the presence of a catalyst therefor, to form a gaseous mixture containing CO and H 2 which is recycled into the furnace, preferably to the secondary reduction zone wherein wustite is reduced to sponge iron, e. g. at 700-1100‹ C, so that, when mixed with the gases rising from the melting zone, the mixed gases effect gaseous reduction of the iron ore while not oxidizing any coke carbon. As shown, the off-gas is preferably withdrawn from the preheating zone from the top 41 of the blast furnace 42 and delivered through gas lines 46,47, water washer/ cooler 48 and tubular heater 49, where it is mixed and reacted with a hydrocarbon stream from inlet line 51, to auxiliary tuyeres 50 distributed around the periphery of the furnace bosh so that the recycle stream e.g. at 500-1000‹ C. is introduced above the melting zone 45. Oxygen, e. g. preheated air blast, and/or additional hydrocarbon may be injected through line 43 and tuyeres 44.
GB159369A 1968-01-04 1968-01-04 Blast furnace operation Expired GB1218912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB159369A GB1218912A (en) 1968-01-04 1968-01-04 Blast furnace operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB159369A GB1218912A (en) 1968-01-04 1968-01-04 Blast furnace operation

Publications (1)

Publication Number Publication Date
GB1218912A true GB1218912A (en) 1971-01-13

Family

ID=9724647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB159369A Expired GB1218912A (en) 1968-01-04 1968-01-04 Blast furnace operation

Country Status (1)

Country Link
GB (1) GB1218912A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2111135A5 (en) * 1970-10-15 1972-06-02 Centre Rech Metallurgique
EP0042147A1 (en) * 1980-06-12 1981-12-23 Harry Bruce Claflin Improved multi-purpose zone controlled blast furnace and method of producing hot metal, gasses and slags
EP0209880A2 (en) * 1985-07-26 1987-01-28 Nippon Kokan Kabushiki Kaisha Method of operating blast furnace
US20100176064A1 (en) * 2009-01-14 2010-07-15 Total Water Management LLC Back Pressure-Matched, Integrated, Environmental-Remediation Apparatus and Method
WO2013110969A2 (en) 2011-12-27 2013-08-01 Hyl Technologies, S.A. De C.V. Blast furnace with top-gas recycle
WO2014006511A2 (en) 2012-07-03 2014-01-09 Hyl Technologies, S.A De C.V. Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater
US9205347B2 (en) 2009-01-14 2015-12-08 Purestream Services, Llc Controlled-gradient, accelerated vapor-recompression apparatus and method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2111135A5 (en) * 1970-10-15 1972-06-02 Centre Rech Metallurgique
EP0042147A1 (en) * 1980-06-12 1981-12-23 Harry Bruce Claflin Improved multi-purpose zone controlled blast furnace and method of producing hot metal, gasses and slags
EP0209880A2 (en) * 1985-07-26 1987-01-28 Nippon Kokan Kabushiki Kaisha Method of operating blast furnace
EP0209880A3 (en) * 1985-07-26 1988-08-03 Nippon Kokan Kabushiki Kaisha Method of operating blast furnace
US4917727A (en) * 1985-07-26 1990-04-17 Nippon Kokan Kabushiki Kaisha Method of operating a blast furnace
US8425666B2 (en) * 2009-01-14 2013-04-23 Purestream Technology, Llc Back pressure-matched, integrated, environmental-remediation apparatus and method
US20100176064A1 (en) * 2009-01-14 2010-07-15 Total Water Management LLC Back Pressure-Matched, Integrated, Environmental-Remediation Apparatus and Method
US9205347B2 (en) 2009-01-14 2015-12-08 Purestream Services, Llc Controlled-gradient, accelerated vapor-recompression apparatus and method
US9533238B2 (en) 2009-01-14 2017-01-03 Purestream Services, Llc Controlled-gradient, accelerated vapor-recompression apparatus and method
WO2013110969A2 (en) 2011-12-27 2013-08-01 Hyl Technologies, S.A. De C.V. Blast furnace with top-gas recycle
WO2013110969A3 (en) * 2011-12-27 2014-07-31 Hyl Technologies, S.A. De C.V. Blast furnace with top-gas recycle
CN104412056A (en) * 2011-12-27 2015-03-11 伊尔技术有限公司 Blast furnace with top-gas recycle
JP2015510030A (en) * 2011-12-27 2015-04-02 エイチワイエル テクノロジーズ、エス．エー． デ シー．ヴイ Blast furnace for recirculating furnace top gas
WO2014006511A2 (en) 2012-07-03 2014-01-09 Hyl Technologies, S.A De C.V. Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater
US9605326B2 (en) 2012-07-03 2017-03-28 Hyl Technologies, S.A. De C.V. Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater

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