BR112022021572A2 - Método para produzir ferro reduzido - Google Patents
Método para produzir ferro reduzidoInfo
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
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)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (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)
- Control And Safety Of Cranes (AREA)
- Compounds Of Iron (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.
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)
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 (18)
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 |
US2862808A (en) | 1957-07-31 | 1958-12-02 | Alan N Mann | Apparatus and method for reducing iron oxide pellets |
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 |
UA114676C2 (uk) * | 2013-07-31 | 2017-07-10 | Мідрекс Текнолоджиз, Інк. | Відновлення оксиду заліза до металевого заліза з застосуванням природного газу |
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 |
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 |
-
2021
- 2021-05-13 TW TW110117325A patent/TWI788843B/zh active
- 2021-05-13 AU AU2021272824A patent/AU2021272824A1/en active Pending
- 2021-05-13 CN CN202180034277.4A patent/CN115552041A/zh active Pending
- 2021-05-13 JP JP2022522188A patent/JPWO2021230307A1/ja active Pending
- 2021-05-13 BR BR112022021572A patent/BR112022021572A2/pt unknown
- 2021-05-13 CA CA3176131A patent/CA3176131A1/en active Pending
- 2021-05-13 KR KR1020227038898A patent/KR20220160694A/ko not_active Application Discontinuation
- 2021-05-13 US US17/921,654 patent/US20230167516A1/en active Pending
- 2021-05-13 EP EP21804039.2A patent/EP4151754A4/en active Pending
- 2021-05-13 MX MX2022014023A patent/MX2022014023A/es unknown
- 2021-05-13 WO PCT/JP2021/018156 patent/WO2021230307A1/ja unknown
Also Published As
Publication number | Publication date |
---|---|
CA3176131A1 (en) | 2021-11-18 |
TW202146667A (zh) | 2021-12-16 |
CN115552041A (zh) | 2022-12-30 |
AU2021272824A1 (en) | 2022-11-24 |
KR20220160694A (ko) | 2022-12-06 |
WO2021230307A1 (ja) | 2021-11-18 |
MX2022014023A (es) | 2022-11-30 |
EP4151754A1 (en) | 2023-03-22 |
TWI788843B (zh) | 2023-01-01 |
JPWO2021230307A1 (pt) | 2021-11-18 |
US20230167516A1 (en) | 2023-06-01 |
EP4151754A4 (en) | 2023-09-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B06W | Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette] |