JP5270903B2 - 高炉ガスの熱量増加方法 - Google Patents
高炉ガスの熱量増加方法 Download PDFInfo
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- JP5270903B2 JP5270903B2 JP2007283570A JP2007283570A JP5270903B2 JP 5270903 B2 JP5270903 B2 JP 5270903B2 JP 2007283570 A JP2007283570 A JP 2007283570A JP 2007283570 A JP2007283570 A JP 2007283570A JP 5270903 B2 JP5270903 B2 JP 5270903B2
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- blast furnace
- gas
- furnace gas
- carbon dioxide
- nitrogen
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 169
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 137
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 93
- 238000000926 separation method Methods 0.000 claims abstract description 75
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 68
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 68
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 47
- 239000003595 mist Substances 0.000 claims abstract description 42
- 239000000428 dust Substances 0.000 claims abstract description 38
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000011593 sulfur Substances 0.000 claims abstract description 21
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 21
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 36
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 35
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 claims description 30
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000001257 hydrogen Substances 0.000 claims description 17
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 14
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 14
- 238000000354 decomposition reaction Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 4
- 238000002407 reforming Methods 0.000 abstract 2
- 239000006227 byproduct Substances 0.000 description 15
- 238000001179 sorption measurement Methods 0.000 description 15
- 239000003463 adsorbent Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 229910021536 Zeolite Inorganic materials 0.000 description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 5
- 150000002506 iron compounds Chemical class 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000010457 zeolite Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000571 coke Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- QLTZBYGZXPKHLF-UHFFFAOYSA-N 2-Propylsuccinic acid Chemical compound CCCC(C(O)=O)CC(O)=O QLTZBYGZXPKHLF-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
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- Industrial Gases (AREA)
Description
硫化カルボニル分解塔8に充填される触媒としては、硫化カルボニルを分解する作用のある触媒であれば何れも使用可能であるが、特に、炭酸カルシウムをアルミナに担持させたものが好ましい。この際、ガス中に過剰な水分が存在すると、触媒の活性点が水で被覆されて反応活性が低下することから、これを防止するために、高炉ガス中の水分は予め露点で1℃以下とするのが好ましい。尚、熱交換器7を用いて高炉ガスを40〜60℃に昇温する理由は、硫化カルボニルの分解反応及び硫化水素の生成反応を促進させるためである。
硫化水素除去塔10に充填される脱硫剤としての鉄化合物は、硫化水素を除去する作用のある鉄化合物である限り何れも使用可能であるが、特に、水酸化第二鉄を主成分とする脱硫能力に優れた鉄化合物が好ましい。また、脱硫後のガス中の硫黄分濃度は5mg/Nm3以下程度を目安とすればよい。
2 ミストセパレーター
3 ダストフィルター
4 ブロワー
5 熱交換器
6 ミストセパレーター
7 熱交換器
8 硫化カルボニル分解塔
9 熱交換器
10 硫化水素除去塔
11 ダストフィルター
12 熱交換器
13 ミストセパレーター
14 チラーユニット
15 チラーユニット
16 ガス混合タンク
17 圧縮機
18 CO2−PSA装置
19 真空ポンプ
20 ガス混合タンク
21 圧縮機
22 CO−PSA装置
23 真空ポンプ
S1 予備処理工程
S2 二酸化炭素分離工程
S3 一酸化炭素分離工程
Claims (2)
- 高炉炉頂から排出される高炉ガスからガス中の二酸化炭素及び窒素を分離除去して高炉ガスの熱量を増加するに際し、
先ず、予備処理工程にて、前記高炉ガス中のミスト、ダスト及び硫黄分を除去し、
次いで、前記予備処理工程の後段の二酸化炭素分離工程にて、前記予備処理工程でミスト、ダスト及び硫黄分が除去された高炉ガスから二酸化炭素を除去し、
その後、前記二酸化炭素分離工程の後段の窒素分離工程にて、前記二酸化炭素分離工程で二酸化炭素が除去された高炉ガスから、一酸化炭素と、窒素と、水素及び窒素の混合ガスと、を分離し、
前記窒素分離工程で分離した一酸化炭素と水素及び窒素の混合ガスとを回収し、回収した一酸化炭素と水素及び窒素の混合ガスとを混合することにより、高炉炉頂から排出される高炉ガスから一酸化炭素及び水素を主体とする改質高炉ガスを得ることを特徴とする、高炉ガスの熱量増加方法。 - 前記高炉ガスを、ミスト除去、ダスト除去、水分除去、硫化カルボニル分解処理、硫化水素除去の順序で処理して、前記ミスト、ダスト及び硫黄分を除去することを特徴とする、請求項1に記載の高炉ガスの熱量増加方法。
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JP2007283570A JP5270903B2 (ja) | 2007-10-31 | 2007-10-31 | 高炉ガスの熱量増加方法 |
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JP2007283570A JP5270903B2 (ja) | 2007-10-31 | 2007-10-31 | 高炉ガスの熱量増加方法 |
Publications (2)
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JP2009108241A JP2009108241A (ja) | 2009-05-21 |
JP5270903B2 true JP5270903B2 (ja) | 2013-08-21 |
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JP2007283570A Active JP5270903B2 (ja) | 2007-10-31 | 2007-10-31 | 高炉ガスの熱量増加方法 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102925221A (zh) * | 2012-10-31 | 2013-02-13 | 绵阳通美能源科技有限公司 | 生物质燃气及其净化方法 |
EP3446349B1 (en) * | 2016-04-21 | 2021-03-17 | Fuelcell Energy, Inc. | Molten carbonate fuel cell anode exhaust post-processing for carbon dioxide capture |
JP6799078B2 (ja) | 2016-04-29 | 2020-12-09 | フュエルセル エナジー, インコーポレイテッドFuelcell Energy, Inc. | 二酸化炭素捕捉を高めるためのアノード排ガスのメタン化 |
KR102610181B1 (ko) | 2018-11-30 | 2023-12-04 | 퓨얼셀 에너지, 인크 | 향상된 co2 이용률로 작동되는 연료 전지를 위한 촉매 패턴의 개질 |
EP4118029A1 (en) | 2020-03-11 | 2023-01-18 | Fuelcell Energy, Inc. | Steam methane reforming unit for carbon capture |
WO2024127244A1 (en) * | 2022-12-12 | 2024-06-20 | Danieli & C. Officine Meccaniche S.P.A. | Steel plant comprising an electric arc furnace and a carbon dioxide capturing system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62193622A (ja) * | 1986-02-20 | 1987-08-25 | Mitsubishi Heavy Ind Ltd | 高炉ガスの発熱量増加方法およびその装置 |
JPH03188209A (ja) * | 1989-12-18 | 1991-08-16 | Nkk Corp | ガス配管のドレン排出装置 |
US6216441B1 (en) * | 1997-09-17 | 2001-04-17 | General Electric Co | Removal of inert gases from process gases prior to compression in a gas turbine or combined cycle power plant |
JP4529171B2 (ja) * | 2004-02-16 | 2010-08-25 | Jfeエンジニアリング株式会社 | ガス中の硫化カルボニルの除去方法 |
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