BR112022021572A2 - Método para produzir ferro reduzido - Google Patents

Método para produzir ferro reduzido

Info

Publication number
BR112022021572A2
BR112022021572A2 BR112022021572A BR112022021572A BR112022021572A2 BR 112022021572 A2 BR112022021572 A2 BR 112022021572A2 BR 112022021572 A BR112022021572 A BR 112022021572A BR 112022021572 A BR112022021572 A BR 112022021572A BR 112022021572 A2 BR112022021572 A2 BR 112022021572A2
Authority
BR
Brazil
Prior art keywords
reduced iron
produce reduced
reducing
gas
shaft furnace
Prior art date
Application number
BR112022021572A
Other languages
English (en)
Inventor
Inada Takanobu
Mizutani Moritoshi
UJISAWA Yutaka
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of BR112022021572A2 publication Critical patent/BR112022021572A2/pt

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
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/16—Arrangements of tuyeres
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • 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
    • 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
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/26—Increasing the gas reduction potential of recycled exhaust gases by adding additional fuel in recirculation pipes
    • 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
    • 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
    • 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
    • Y02P10/134—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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture Of Iron (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compounds Of Iron (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

MÉTODO PARA PRODUZIR FERRO REDUZIDO. É provido um método para produzir ferro reduzido reduzindo o óxido de ferro carregado em um forno de cuba, em que um gás misturado contendo um gás redutor e um gás nitrogênio e aquecido a uma temperatura predeterminada é soprado no forno de cuba, o gás redutor contendo pelo menos 90 % em volume de gás hidrogênio.
BR112022021572A 2020-05-14 2021-05-13 Método para produzir ferro reduzido BR112022021572A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020085078 2020-05-14
PCT/JP2021/018156 WO2021230307A1 (ja) 2020-05-14 2021-05-13 還元鉄の製造方法

Publications (1)

Publication Number Publication Date
BR112022021572A2 true BR112022021572A2 (pt) 2022-12-06

Family

ID=78524497

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022021572A BR112022021572A2 (pt) 2020-05-14 2021-05-13 Método para produzir ferro reduzido

Country Status (11)

Country Link
US (1) US20230167516A1 (pt)
EP (1) EP4151754A4 (pt)
JP (1) JPWO2021230307A1 (pt)
KR (1) KR20220160694A (pt)
CN (1) CN115552041A (pt)
AU (1) AU2021272824A1 (pt)
BR (1) BR112022021572A2 (pt)
CA (1) CA3176131A1 (pt)
MX (1) MX2022014023A (pt)
TW (1) TWI788843B (pt)
WO (1) WO2021230307A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE545792C2 (en) * 2022-05-20 2024-02-06 Greeniron H2 Ab Method and device for producing direct reduced metal

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB729146A (en) * 1952-06-18 1955-05-04 Stanley Edward Matthews Apparatus and process for the reduction of metal oxides by gases
US3135598A (en) * 1960-04-27 1964-06-02 Yawata Iron & Steel Co Rapid direct reduction method of iron oxide
JPS4947208A (pt) * 1972-03-11 1974-05-07
DE2422641C2 (de) 1973-05-18 1985-11-21 Centre de Recherches Métallurgiques-Centrum voor Research in de Metallurgie, Brüssel/Bruxelles Verfahren zur Schachtofen-Erzreduktion
AU543499B2 (en) * 1979-04-24 1985-04-26 Foster Wheeler Ltd. Producing hydrogen and injecting into direct reduction furnaces or blast furnaces
ZA802257B (en) * 1979-04-24 1982-02-24 Foster Wheeler Ltd Production of reducing gas for furnace injection
US4363654A (en) * 1980-04-08 1982-12-14 Geoffrey Frederick Production of reducing gas for furnace injection
US6027545A (en) * 1998-02-20 2000-02-22 Hylsa, S.A. De C.V. Method and apparatus for producing direct reduced iron with improved reducing gas utilization
CN101787406A (zh) * 2010-01-12 2010-07-28 北京科技大学 一种超细赤铁矿粉非熔态还原工艺及装置
KR101178536B1 (ko) * 2010-12-28 2012-08-30 주식회사 포스코 환원철의 제조방법 및 제조장치
UA117374C2 (uk) * 2013-07-31 2018-07-25 Мідрекс Текнолоджиз, Інк. Відновлення оксиду заліза до металевого заліза із застосуванням коксового газу та газу зі сталеплавильної печі з подачею кисню
MY183440A (en) * 2013-07-31 2021-02-18 Midrex Technologies Inc System and method for reducing iron oxide to metallic iron using matural gas
JP5714750B1 (ja) * 2014-06-02 2015-05-07 新日鉄住金エンジニアリング株式会社 直接還元鉄の製造設備、及び直接還元鉄の製造方法
CN105219907A (zh) 2015-10-14 2016-01-06 钢铁研究总院 高磷鲕状赤铁矿气基直接还原-磨矿磁选的炼铁工艺
EP3210681B1 (de) 2016-02-23 2020-01-15 BILSTEIN GmbH & Co. KG Vorrichtung und verfahren zum walzen von bandmaterial mit veränderlicher banddicke
EP3581663A1 (de) 2018-06-12 2019-12-18 Primetals Technologies Austria GmbH Herstellung von karburiertem eisenschwamm mittels wasserstoffbasierter direktreduktion
JP7121642B2 (ja) 2018-11-20 2022-08-18 Ｋｙｂ株式会社 流体圧制御装置

Also Published As

Publication number Publication date
CN115552041A (zh) 2022-12-30
US20230167516A1 (en) 2023-06-01
AU2021272824A1 (en) 2022-11-24
CA3176131A1 (en) 2021-11-18
EP4151754A1 (en) 2023-03-22
KR20220160694A (ko) 2022-12-06
EP4151754A4 (en) 2023-09-13
WO2021230307A1 (ja) 2021-11-18
JPWO2021230307A1 (pt) 2021-11-18
TWI788843B (zh) 2023-01-01
TW202146667A (zh) 2021-12-16
MX2022014023A (es) 2022-11-30

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