BR112023023851A2 - Método e equipamento para fabricar ferro reduzido direto - Google Patents
Método e equipamento para fabricar ferro reduzido diretoInfo
- Publication number
- BR112023023851A2 BR112023023851A2 BR112023023851A BR112023023851A BR112023023851A2 BR 112023023851 A2 BR112023023851 A2 BR 112023023851A2 BR 112023023851 A BR112023023851 A BR 112023023851A BR 112023023851 A BR112023023851 A BR 112023023851A BR 112023023851 A2 BR112023023851 A2 BR 112023023851A2
- Authority
- BR
- Brazil
- Prior art keywords
- dri
- reduced iron
- equipment
- direct reduced
- shaft
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 239000007789 gas Substances 0.000 abstract 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000004227 thermal cracking 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
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
-
- 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
-
- 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
-
- 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
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- 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
- C21B2100/40—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
-
- 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
- C21B2100/66—Heat exchange
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture Of Iron (AREA)
- Processing Of Solid Wastes (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
método e equipamento para fabricar ferro reduzido direto. método para fabricação de ferro reduzido direto, em que o minério de ferro é reduzido em um eixo dri por um gás de redução compreendendo hidrogênio obtido por craqueamento térmico de metano dentro de uma tocha de plasma, o gás de redução compreendendo ainda gás de topo proveniente do eixo dri e um equipamento de fabricação de dri incluindo um eixo dri (1) e uma tocha de plasma (40), em que a tocha de plasma está conectada de um lado a um suprimento de metano (41) e, do outro lado, ao eixo dri (1), sendo o eixo dri fornecido com um circuito de reciclagem que permite injetar seu gás de topo de volta no eixo dri.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IB2021/054256 WO2022243725A1 (en) | 2021-05-18 | 2021-05-18 | Method for manufacturing direct reduced iron and dri manufacturing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112023023851A2 true BR112023023851A2 (pt) | 2024-01-30 |
Family
ID=76098984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112023023851A BR112023023851A2 (pt) | 2021-05-18 | 2021-05-18 | Método e equipamento para fabricar ferro reduzido direto |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20240240276A1 (pt) |
| EP (1) | EP4341448A1 (pt) |
| JP (1) | JP2024521087A (pt) |
| KR (1) | KR20240007226A (pt) |
| CN (1) | CN117337336A (pt) |
| AU (1) | AU2021445963A1 (pt) |
| BR (1) | BR112023023851A2 (pt) |
| CA (1) | CA3219964A1 (pt) |
| MX (1) | MX2023013533A (pt) |
| WO (1) | WO2022243725A1 (pt) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005080609A1 (fr) * | 2004-02-23 | 2005-09-01 | Anatoly Timofeevich Neklesa | Procede de fabrication de fer par sa reduction directe et dispositif correspondant |
| US20170298461A1 (en) * | 2012-09-14 | 2017-10-19 | Voestalpine Stahl Gmbh | Method for producing steel |
| US9970071B2 (en) * | 2014-09-23 | 2018-05-15 | Midrex Technologies, Inc. | Method for reducing iron oxide to metallic iron using coke oven gas |
-
2021
- 2021-05-18 MX MX2023013533A patent/MX2023013533A/es unknown
- 2021-05-18 AU AU2021445963A patent/AU2021445963A1/en active Pending
- 2021-05-18 BR BR112023023851A patent/BR112023023851A2/pt unknown
- 2021-05-18 KR KR1020237042590A patent/KR20240007226A/ko unknown
- 2021-05-18 CN CN202180098283.6A patent/CN117337336A/zh active Pending
- 2021-05-18 CA CA3219964A patent/CA3219964A1/en active Pending
- 2021-05-18 JP JP2023571581A patent/JP2024521087A/ja active Pending
- 2021-05-18 EP EP21727940.5A patent/EP4341448A1/en active Pending
- 2021-05-18 WO PCT/IB2021/054256 patent/WO2022243725A1/en active Application Filing
- 2021-05-18 US US18/559,908 patent/US20240240276A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA3219964A1 (en) | 2022-11-24 |
| CN117337336A (zh) | 2024-01-02 |
| US20240240276A1 (en) | 2024-07-18 |
| AU2021445963A1 (en) | 2023-11-23 |
| EP4341448A1 (en) | 2024-03-27 |
| MX2023013533A (es) | 2023-11-28 |
| KR20240007226A (ko) | 2024-01-16 |
| JP2024521087A (ja) | 2024-05-28 |
| WO2022243725A1 (en) | 2022-11-24 |
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