EP4509617A4 - Système de réduction de circulation, procédé de réduction de minerai de fer et procédé de fonctionnement de haut-fourneau - Google Patents
Système de réduction de circulation, procédé de réduction de minerai de fer et procédé de fonctionnement de haut-fourneauInfo
- Publication number
- EP4509617A4 EP4509617A4 EP23860186.8A EP23860186A EP4509617A4 EP 4509617 A4 EP4509617 A4 EP 4509617A4 EP 23860186 A EP23860186 A EP 23860186A EP 4509617 A4 EP4509617 A4 EP 4509617A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- blast furnace
- iron ore
- circulating
- reduction
- furnace operating
- 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.)
- Pending
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
- C21B11/00—Making pig-iron other than in blast 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/002—Evacuating and treating of exhaust gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
- C21B2005/005—Selection or treatment of the reducing 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
- C21B2100/22—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
- C21B2100/24—Increasing the gas reduction potential of recycled exhaust gases by shift reactions
-
- 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
- C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
-
- 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
- C21B2100/284—Increasing the gas reduction potential of recycled exhaust gases by separation of nitrogen
-
- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture Of Iron (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022137231 | 2022-08-30 | ||
| PCT/JP2023/030590 WO2024048423A1 (fr) | 2022-08-30 | 2023-08-24 | Système de réduction de circulation, procédé de réduction de minerai de fer et procédé de fonctionnement de haut-fourneau |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4509617A1 EP4509617A1 (fr) | 2025-02-19 |
| EP4509617A4 true EP4509617A4 (fr) | 2025-06-11 |
Family
ID=90099760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23860186.8A Pending EP4509617A4 (fr) | 2022-08-30 | 2023-08-24 | Système de réduction de circulation, procédé de réduction de minerai de fer et procédé de fonctionnement de haut-fourneau |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP4509617A4 (fr) |
| JP (1) | JP7669596B2 (fr) |
| KR (1) | KR102891619B1 (fr) |
| CN (1) | CN119487216A (fr) |
| TW (1) | TWI886552B (fr) |
| WO (1) | WO2024048423A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025215401A1 (fr) * | 2024-04-11 | 2025-10-16 | Arcelormittal | Procédé de fabrication de fer et installation associée |
| TWI889598B (zh) * | 2024-11-14 | 2025-07-01 | 中國鋼鐵股份有限公司 | 鼓風嘴結構及使用鼓風嘴結構進行噴吹操作的方法 |
| US12595966B1 (en) | 2025-01-13 | 2026-04-07 | Schlumberger Technology Corporation | Recycling carbon in blast furnace gas emissions |
| CN121538365A (zh) * | 2026-01-20 | 2026-02-17 | 安徽工业大学 | 一种co2介导的间接氢冶金高炉冶炼工艺 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011225968A (ja) * | 2010-03-30 | 2011-11-10 | Jfe Steel Corp | 高炉又は製鉄所の操業方法 |
| CN114807485A (zh) * | 2022-03-09 | 2022-07-29 | 中冶赛迪工程技术股份有限公司 | 一种生产直接还原铁的煤气处理方法及系统 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265868A (en) * | 1978-02-08 | 1981-05-05 | Koppers Company, Inc. | Production of carbon monoxide by the gasification of carbonaceous materials |
| JPH09100108A (ja) * | 1995-10-05 | 1997-04-15 | Cosmo Eng Kk | 一酸化炭素ガスの製造方法 |
| JP5594025B2 (ja) * | 2010-09-29 | 2014-09-24 | Ｊｆｅスチール株式会社 | 高炉用原料及びその製造方法 |
| DE102013009993A1 (de) | 2013-06-14 | 2014-12-18 | CCP Technology GmbH | Hochofen und Verfahren zum Betrieb eines Hochofens |
| JP2017088912A (ja) | 2015-11-04 | 2017-05-25 | 株式会社神戸製鋼所 | 還元鉄の製造方法 |
| RU2726175C1 (ru) * | 2016-09-20 | 2020-07-09 | Мидрэкс Текнолоджиз, Инк. | Способы и системы для повышения содержания углерода в губчатом железе в восстановительной печи |
| CN106399617A (zh) | 2016-12-16 | 2017-02-15 | 江苏省冶金设计院有限公司 | 一种气基竖炉直接还原炼铁的系统及方法 |
| CN111171848B (zh) * | 2020-01-21 | 2021-05-28 | 太原理工大学 | 一种生产高纯钢铁和氢气的系统及方法 |
| WO2021220555A1 (fr) | 2020-04-27 | 2021-11-04 | Ｊｆｅスチール株式会社 | Installation de fabrication de fer et procédé de fabrication de fer réduit |
| KR20220158079A (ko) * | 2020-05-28 | 2022-11-29 | 닛폰세이테츠 가부시키가이샤 | 환원철의 제조 방법 |
| WO2022029886A1 (fr) * | 2020-08-04 | 2022-02-10 | 積水化学工業株式会社 | Dispositif de production de gaz, système de production de gaz, système de production de fer, système de production de produit chimique et procédé de production de gaz |
-
2023
- 2023-08-24 CN CN202380053527.8A patent/CN119487216A/zh active Pending
- 2023-08-24 KR KR1020247038919A patent/KR102891619B1/ko active Active
- 2023-08-24 EP EP23860186.8A patent/EP4509617A4/fr active Pending
- 2023-08-24 WO PCT/JP2023/030590 patent/WO2024048423A1/fr not_active Ceased
- 2023-08-24 JP JP2024544187A patent/JP7669596B2/ja active Active
- 2023-08-28 TW TW112132363A patent/TWI886552B/zh active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011225968A (ja) * | 2010-03-30 | 2011-11-10 | Jfe Steel Corp | 高炉又は製鉄所の操業方法 |
| CN114807485A (zh) * | 2022-03-09 | 2022-07-29 | 中冶赛迪工程技术股份有限公司 | 一种生产直接还原铁的煤气处理方法及系统 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2024048423A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119487216A (zh) | 2025-02-18 |
| JP7669596B2 (ja) | 2025-04-28 |
| TWI886552B (zh) | 2025-06-11 |
| KR20250004321A (ko) | 2025-01-07 |
| EP4509617A1 (fr) | 2025-02-19 |
| TW202426662A (zh) | 2024-07-01 |
| WO2024048423A1 (fr) | 2024-03-07 |
| JPWO2024048423A1 (fr) | 2024-03-07 |
| KR102891619B1 (ko) | 2025-11-26 |
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Legal Events
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20241113 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| A4 | Supplementary search report drawn up and despatched |
Effective date: 20250514 |
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| RIC1 | Information provided on ipc code assigned before grant |
Ipc: C21B 13/00 20060101ALI20250508BHEP Ipc: C21B 7/00 20060101ALI20250508BHEP Ipc: C21B 11/00 20060101ALI20250508BHEP Ipc: C21B 5/00 20060101ALI20250508BHEP Ipc: C21B 5/06 20060101AFI20250508BHEP |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17Q | First examination report despatched |
Effective date: 20251218 |