GB2523288A - Zero gas emission continuous steelmaking process - Google Patents

Zero gas emission continuous steelmaking process Download PDF

Info

Publication number
GB2523288A
GB2523288A GB1511306.1A GB201511306A GB2523288A GB 2523288 A GB2523288 A GB 2523288A GB 201511306 A GB201511306 A GB 201511306A GB 2523288 A GB2523288 A GB 2523288A
Authority
GB
United Kingdom
Prior art keywords
gas
combustion
post
reduction
hydrogen
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Withdrawn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
GB1511306.1A
Other versions
GB201511306D0 (en
Inventor
Noel Alfred Warner
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
Publication of GB201511306D0 publication Critical patent/GB201511306D0/en
Publication of GB2523288A publication Critical patent/GB2523288A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

Crushed iron ore and ore fines without distinction are incorporated by chemical reaction into a closed- loop melt circulation reactor to form a thin liquid floating oxidic layer comprised initially principally of molten wustite. Hydrogen reduction is gas phase diffusion controlled so is unaffected by total pressure. Energy requirements are supplied by a carrier medium of molten iron circulating within an unmelted steel shell. Post-combustion of reduction off-gas is inherently dangerous so the reduction off-gas has no direct access to post-combustion. A multiple array of axi-symmetric turbulent jets inject clean hydrogen into the gas freeboard in the post-combustion zone to entrain the surrounding gas phase, predominantly turbulent flowing water vapour containing minor oxygen. Major recirculation of post- combustion off-gas is achieved using a gas ejector empowered by compressed oxygen as dictated for safe combustion. Atmospheric pressure operation is recommended with low-pressure steam enshrouding all plant containing hydrogen for enhanced safety.
GB1511306.1A 2012-12-21 2013-12-03 Zero gas emission continuous steelmaking process Withdrawn GB2523288A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1223252.6A GB201223252D0 (en) 2012-12-21 2012-12-21 Zero gas emission continuous steelmaking
PCT/GB2013/000520 WO2014096751A1 (en) 2012-12-21 2013-12-03 Zero gas emission continuous steelmaking process

Publications (2)

Publication Number Publication Date
GB201511306D0 GB201511306D0 (en) 2015-08-12
GB2523288A true GB2523288A (en) 2015-08-19

Family

ID=47682469

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1223252.6A Ceased GB201223252D0 (en) 2012-12-21 2012-12-21 Zero gas emission continuous steelmaking
GB1511306.1A Withdrawn GB2523288A (en) 2012-12-21 2013-12-03 Zero gas emission continuous steelmaking process

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1223252.6A Ceased GB201223252D0 (en) 2012-12-21 2012-12-21 Zero gas emission continuous steelmaking

Country Status (2)

Country Link
GB (2) GB201223252D0 (en)
WO (1) WO2014096751A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018083434A1 (en) * 2016-11-07 2018-05-11 Warner, Noel A. Carbon-free smelting of hematite ore
WO2018234720A1 (en) * 2017-06-20 2018-12-27 WARNER, Noel, A. Smelting low-grade iron ore without beneficiation
CN110186279B (en) * 2019-06-14 2024-01-16 中机第一设计研究院有限公司 Positioning driving system for annular furnace bottom
BR112023016400A2 (en) * 2021-02-18 2023-10-31 Carbon Tech Holdings Llc METALLURGICAL PRODUCTS WITH NEGATIVE CARBON
CN116911035B (en) * 2023-07-21 2024-02-06 中国石油大学(华东) Shale oil gas gathering and transportation process key device risk identification method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427710A1 (en) * 1986-11-06 1991-05-15 The University Of Birmingham Smelting reduction
WO2006092549A2 (en) * 2005-03-02 2006-09-08 Noel Warner Process and plant for gas-based direct steelmaking

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427710A1 (en) * 1986-11-06 1991-05-15 The University Of Birmingham Smelting reduction
WO2006092549A2 (en) * 2005-03-02 2006-09-08 Noel Warner Process and plant for gas-based direct steelmaking

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"AISTECH. Iron and Steel Technology Conference Proceedings", 2004, Association for Iron and Steel Technology US, pp. 421-422 *
Transcations - Institute of Mining and Metallurgy, Section C, Mineral Processing and Extractive Metallurgy, Vol. 112, 2003, pp. 141-154 *

Also Published As

Publication number Publication date
GB201223252D0 (en) 2013-02-06
GB201511306D0 (en) 2015-08-12
WO2014096751A1 (en) 2014-06-26

Similar Documents

Publication Publication Date Title
GB2523288A (en) Zero gas emission continuous steelmaking process
MY164232A (en) Method of and apparatus for nuclear transformation
EP1114194A4 (en) A direct smelting process and apparatus
CL2013001576A1 (en) Method for treating wastewater for the removal of metals comprising adding residual water, slag dried in the basic oxygen furnace and hydrogen peroxide to a catalytic oxidation reactor and stirring to create the first solution, transfer said first solution to the first separation process Liquid solid, add carbonate and undergo second process.
AR094927A1 (en) DIRECT REDUCTION PROCESS WITH INCREASED PRODUCT QUALITY AND THE EFFECTIVENESS OF PROCESS GAS
MX2014005911A (en) Direct-reduced iron production system.
CA3029586A1 (en) Smelting method for metallurgical electric-furnace
MX2014000586A (en) Molten salt rolling bubble column, reactors utilizing same, and related methods.
MX2012008671A (en) Oxidation system with sidedraw secondary reactor.
CN101296858A (en) A method for producing hydrogen and/or other gases from steel plant wastes and waste heat
CN104630470A (en) Method and device for removing organic matters in zinc sulphate solution by pressurizing and atomizing
MX344136B (en) Oxidation system with sidedraw secondary reactor.
UA98677C2 (en) Method the production and melting of liquid pig iron or liquid steel intermediate products in a melt-down gasifier and an oxygen nozzle
KR101663188B1 (en) Manufacturing apparatus for molten metal and method thereof
MY157558A (en) Oxidation system with sidedraw secondary reactor
GB2438570A (en) Process and plant for gas-based direct steelmaking
CN201964757U (en) Under-car water cooling device for tunnel type kiln furnace
Dorndorf et al. Transforming the steelmaking process
Wang et al. Effect of off-centered silicon ladle on the removal strength of aluminum and calcium impurities
GB2507246A (en) Direct reduction of iron using a carbon monoxide-hydrogen mixture derived from carbon dioxide and water
Changyi et al. Research and application of steels for reactor pressure vessel of nuclear power station
CN102653805B (en) Submerged arc plasma smelting ironmaking method
GB1225014A (en) Method of and plant for the utilization of nuclear energy
LU500065B1 (en) Method of operating an electric arc furnace, electric arc furnace and steel mill
CN102303909A (en) Defoaming method for manganese carbonate combination process in manganese electrolyzing workshop

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)