JP5509676B2 - 竪型炉の操業方法 - Google Patents
竪型炉の操業方法 Download PDFInfo
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- JP5509676B2 JP5509676B2 JP2009128496A JP2009128496A JP5509676B2 JP 5509676 B2 JP5509676 B2 JP 5509676B2 JP 2009128496 A JP2009128496 A JP 2009128496A JP 2009128496 A JP2009128496 A JP 2009128496A JP 5509676 B2 JP5509676 B2 JP 5509676B2
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- furnace
- gas
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- pressure
- top gas
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- 239000007789 gas Substances 0.000 claims description 132
- 238000000034 method Methods 0.000 claims description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000011017 operating method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 description 20
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 18
- 230000002745 absorbent Effects 0.000 description 18
- 239000002250 absorbent Substances 0.000 description 18
- 239000000571 coke Substances 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 11
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 9
- 239000001569 carbon dioxide Substances 0.000 description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000003949 liquefied natural gas Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006114 decarboxylation reaction Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 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
- 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
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
2(C2H5O−NH2)+CO2 ⇔ (C2H5O−NH3)+(C2H5O−NHCOO−)
この反応は、約40〜60℃の温度では右へ進み、MEAはCO2を吸収する。CO2を吸収したMEA(CO2リッチMEA)を約100〜120℃程度に加熱すると逆に反応は左へ進み、CO2を分離する。CO2を放出したMEAは再びCO2の吸収液として利用する。CO21モルに対して理論的に1モルの吸収剤を必要とするが、非特許文献1によれば、CO2との接触を考慮すると、吸収剤1リットルに対してCO2の吸収が31〜118gであるから、1トンのCO2を吸収するためには、8.5〜32.3キロリットルの吸収剤を必要とし、膨大な吸収剤が必要となる。
(1)鉄鉱石から溶銑を製造する竪型炉において、炉頂ガスの圧力が0.4MPa(abs)を超える操業を行い、前記炉頂ガス中のCO2を液体CO2として分離回収することを特徴とする竪型炉の操業方法。
(2)炉頂ガス中のCO2分圧を0.3MPa(abs)以上とする操業を行い、前記炉頂ガス中のCO2を液体CO2として分離回収することを特徴とする(1)に記載の竪型炉の操業方法。
(3)炉頂ガスを昇圧後に、前記炉頂ガス中のCO2を液体CO2として分離回収することを特徴とする(1)または(2)に記載の竪型炉の操業方法。
(4)CO2を分離回収した後の炉頂ガスを、竪型炉の羽口から吹き込むことを特徴とする(1)ないし(3)のいずれかに記載の竪型炉の操業方法。
(5)竪型炉の羽口から吹き込む送風ガス中の酸素濃度が30体積%以上、100体積%未満であることを特徴とする(1)ないし(4)のいずれかに記載の竪型炉の操業方法。
(6)竪型炉のシャフト部に予熱ガスを吹き込むことを特徴とする(5)に記載の竪型炉の操業方法。
2 熱風、補助還元材、酸素
3 羽口
4 炉頂ガス
5 昇圧機
6 炉頂ガス
7 CO2分離機
8 冷熱
9 排熱
10 液化CO2
11 昇圧機
12 燃焼炉
13 酸素
Claims (5)
- 鉄鉱石から溶銑を製造する竪型炉において、炉頂ガスの圧力が0.4MPa(abs)を
超える操業であって、炉頂ガス中のCO 2 分圧を0.3MPa(abs)以上とする操業を行い、前記炉頂ガス中のCO2を液体CO2として分離回収することを特徴とする竪型炉の操業方法。 - 鉄鉱石から溶銑を製造する竪型炉において、炉頂ガスの圧力が0.4MPa(abs)を
超える操業を行い、前記炉頂ガス中のCO 2 を液体CO 2 として分離回収する竪型炉の操業方法であって、
CO2を分離回収した後の炉頂ガスを、竪型炉の羽口から吹き込むことを特徴とする竪型炉の操業方法。 - 鉄鉱石から溶銑を製造する竪型炉において、炉頂ガスの圧力が0.4MPa(abs)を
超える操業を行い、前記炉頂ガス中のCO 2 を液体CO 2 として分離回収する竪型炉の操業方法であって、
竪型炉の羽口から吹き込む送風ガス中の酸素濃度が30体積%以上、100体積%未満
であることを特徴とする竪型炉の操業方法。 - 炉頂ガスを昇圧後に、前記炉頂ガス中のCO2を液体CO2として分離回収することを特
徴とする請求項1〜3のいずれかに記載の竪型炉の操業方法。 - 竪型炉のシャフト部に予熱ガスを吹き込むことを特徴とする請求項1〜4のいずれかに記載の竪型炉の操業方法。
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JP2009128496A JP5509676B2 (ja) | 2009-05-28 | 2009-05-28 | 竪型炉の操業方法 |
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JP2009128496A JP5509676B2 (ja) | 2009-05-28 | 2009-05-28 | 竪型炉の操業方法 |
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JP2010275582A JP2010275582A (ja) | 2010-12-09 |
JP5509676B2 true JP5509676B2 (ja) | 2014-06-04 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101806858B1 (ko) | 2016-10-06 | 2017-12-08 | 주식회사 포스코건설 | 배가스 재생 장치 및 방법 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2513185A (en) * | 2013-04-19 | 2014-10-22 | Siemens Vai Metals Tech Gmbh | Blast furnace plant |
JP6258039B2 (ja) | 2014-01-07 | 2018-01-10 | 新日鐵住金株式会社 | 高炉の操業方法 |
JP6284383B2 (ja) * | 2014-02-17 | 2018-02-28 | 三菱重工業株式会社 | Co2回収装置及びco2回収方法 |
JP6538636B2 (ja) * | 2016-10-28 | 2019-07-03 | Jfeスチール株式会社 | 高炉操業方法及び高炉設備 |
WO2023153407A1 (ja) * | 2022-02-08 | 2023-08-17 | 日本製鉄株式会社 | 高炉操業法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6347308A (ja) * | 1986-08-18 | 1988-02-29 | Nippon Kokan Kk <Nkk> | 溶融還元精錬設備 |
JP2827451B2 (ja) * | 1990-05-15 | 1998-11-25 | 住友金属工業株式会社 | 高炉羽口粉体吹き込み操業法 |
JPH04191307A (ja) * | 1990-11-26 | 1992-07-09 | Mitsubishi Heavy Ind Ltd | 溶融還元製鉄装置 |
JPH0565518A (ja) * | 1991-09-09 | 1993-03-19 | Kawasaki Steel Corp | 液体水素、液化炭酸ガス及びドライアイスの製造方法 |
FR2859483B1 (fr) * | 2003-09-09 | 2006-05-26 | Air Liquide | Procede de fabrication de fonte avec utilisation des gaz du haut-fourneau pour la recuperation assistee du petrole |
EP2043764A4 (en) * | 2006-07-17 | 2010-12-01 | Commw Scient Ind Res Org | CO2 CAPTURE USING SOLAR THERMAL ENERGY |
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- 2009-05-28 JP JP2009128496A patent/JP5509676B2/ja active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101806858B1 (ko) | 2016-10-06 | 2017-12-08 | 주식회사 포스코건설 | 배가스 재생 장치 및 방법 |
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