JP2023013386A - 製鉄装置 - Google Patents
製鉄装置 Download PDFInfo
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- JP2023013386A JP2023013386A JP2021117528A JP2021117528A JP2023013386A JP 2023013386 A JP2023013386 A JP 2023013386A JP 2021117528 A JP2021117528 A JP 2021117528A JP 2021117528 A JP2021117528 A JP 2021117528A JP 2023013386 A JP2023013386 A JP 2023013386A
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- furnace
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- biomass
- electric furnace
- iron
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- 238000009628 steelmaking Methods 0.000 title claims abstract description 6
- 239000007789 gas Substances 0.000 claims abstract description 52
- 239000002028 Biomass Substances 0.000 claims abstract description 38
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000446 fuel Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 110
- 229910052742 iron Inorganic materials 0.000 claims description 54
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 229910000805 Pig iron Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 52
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 26
- 239000001569 carbon dioxide Substances 0.000 abstract description 24
- 239000001257 hydrogen Substances 0.000 abstract description 11
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 11
- 238000006722 reduction reaction Methods 0.000 description 40
- 239000000428 dust Substances 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 239000002994 raw material Substances 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 235000019738 Limestone Nutrition 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- -1 as a pretreatment Inorganic materials 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 229910001567 cementite Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- 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
Landscapes
- Manufacture Of Iron (AREA)
Abstract
Description
高炉を持つ一貫製鉄所では、コークスと鉄鉱石を高炉上部から入れ、下部から熱風を吹き込むと、熱風でコークスが燃焼して還元ガスが発生する。この還元ガスが炉内を吹き昇り、鉄鉱石中の酸素を奪い取り鉄が精製される。還元ガスに含まれる一酸化炭素と、鉄鉱石に含まれていた酸素が結びつき二酸化炭素(CO2)が発生する。鉄の原料である鉄鉱石が、酸素と結びついた酸化鉄として存在するため、鉄鉱石から鉄を生み出すために、鉄鉱石中の酸素を除去するときに二酸化炭素(CO2)が発生する。
CO + H2O → H2 + CO2
Fe2O3 + 2CO → Fe2O + 2CO2 (1)
Fe2O3 + 2H2 → Fe2O + 2H2O (2)
電気炉のおける反応の分子式は下記の通りとなる。
2Fe2O + C → 4Fe + CO2 (3)
H2O + C → CO + H2 (4)
予備還元炉および電気炉における反応の分子式を合わせると下記通りとなる。
2Fe2O3+5C → 4Fe+2CO+2H2+3CO2+H2O (5)
これにシフト反応の分子式を加味すると、その分子式は下記の通りとなる。
2Fe2O3+5C+3H2O → 4Fe+5CO2+4H2 (6)
2 原料ホッパー
3 バイオマスホッパー
4 副原料ホッパー
10 電気炉
11 予備還元炉
12 予熱装置
13 第1集塵機
14 第2集塵機
15 シフト反応器
16 水素分離装置
17 水素タンク
18 燃料電池
19 電気ヒーター
20 電気炉上部空間
21 電気炉生成ガス
22 予備還元炉発生ガス
Claims (8)
- 燃料電池からの電力により運転される電気炉を備え、前記電気炉に供給されるバイオマスを還元剤とし、前記バイオマスの生成ガスを由来とする水素ガスが前記燃料電池に供給され前記電気炉の電源となる製鉄装置。
- 前記バイオマスを熱分解することにより固形炭素および前記生成ガスが得られ、当該加熱手段が前記バイオマスの燃焼に寄らない請求項1に記載の製鉄装置。
- 前記水素ガスが前記バイオマスの生成ガスのシフト反応により得られる請求項1又は2に記載の製鉄装置。
- 鉄鉱石が予備還元炉を介して前記電気炉に供給され、前記生成ガスが前記予備還元炉に流れる請求項1~3のいずれか一項に記載の製鉄装置。
- 前記生成ガスが前記鉄鉱石の予備還元に利用される請求項4に記載の製鉄装置。
- 前記鉄鉱石が前記電気炉において前記バイオマスを還元剤として直接還元により銑鉄を製造する請求項1~5のいずれか一項に記載の製鉄装置。
- 予備還元炉発生ガスがシフト反応器により前記水素ガスを生成する請求項3に記載の製鉄装置。
- 前記還元剤がプラスチックを含む請求項1に記載の製鉄装置。
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JP2021117528A JP7197756B1 (ja) | 2021-07-16 | 2021-07-16 | 製鉄装置 |
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JP2023013386A true JP2023013386A (ja) | 2023-01-26 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58185703A (ja) * | 1982-04-21 | 1983-10-29 | Nippon Steel Corp | 電気炉による製鉄方法 |
JP2009046726A (ja) * | 2007-08-20 | 2009-03-05 | Jp Steel Plantech Co | アーク炉製鋼方法 |
CN107119166A (zh) * | 2017-05-19 | 2017-09-01 | 安徽工业大学 | 一种生物质含铁团块短流程炼钢及生产不锈钢的方法 |
JP2018003075A (ja) * | 2016-06-29 | 2018-01-11 | 新日鐵住金株式会社 | 酸化鉄含有鉄原料の還元・溶解方法 |
JP2018119693A (ja) * | 2017-01-23 | 2018-08-02 | 新日鐵住金株式会社 | 電気炉用中空電極及び電気炉 |
JP2019533091A (ja) * | 2016-10-24 | 2019-11-14 | テクノロジカル リソーシーズ プロプライエタリー リミテッドTechnological Resources Pty.Limited | 鉄の製造 |
-
2021
- 2021-07-16 JP JP2021117528A patent/JP7197756B1/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58185703A (ja) * | 1982-04-21 | 1983-10-29 | Nippon Steel Corp | 電気炉による製鉄方法 |
JP2009046726A (ja) * | 2007-08-20 | 2009-03-05 | Jp Steel Plantech Co | アーク炉製鋼方法 |
JP2018003075A (ja) * | 2016-06-29 | 2018-01-11 | 新日鐵住金株式会社 | 酸化鉄含有鉄原料の還元・溶解方法 |
JP2019533091A (ja) * | 2016-10-24 | 2019-11-14 | テクノロジカル リソーシーズ プロプライエタリー リミテッドTechnological Resources Pty.Limited | 鉄の製造 |
JP2018119693A (ja) * | 2017-01-23 | 2018-08-02 | 新日鐵住金株式会社 | 電気炉用中空電極及び電気炉 |
CN107119166A (zh) * | 2017-05-19 | 2017-09-01 | 安徽工业大学 | 一种生物质含铁团块短流程炼钢及生产不锈钢的方法 |
Non-Patent Citations (2)
Title |
---|
RUFEI WEI 他5名: "Current status and potential of biomass utilization in ferrous metallugical industry", RENEWABLE AND SUSTAINABLE ENERGY REVIEWS, vol. 68, JPN6022040940, 2017, pages 511 - 524, XP093133245, ISSN: 0004885833, DOI: 10.1016/j.rser.2016.10.013 * |
T. DEMUS 他4名: "Increasing the sustainability of steel production in the electric arc furnace by substituting fossil", IRONMAKING & STEELMAKING, vol. 43, no. 8, JPN6022040941, 2016, pages 564 - 570, ISSN: 0004885834 * |
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