JP2022115842A5 - - Google Patents
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- JP2022115842A5 JP2022115842A5 JP2022011195A JP2022011195A JP2022115842A5 JP 2022115842 A5 JP2022115842 A5 JP 2022115842A5 JP 2022011195 A JP2022011195 A JP 2022011195A JP 2022011195 A JP2022011195 A JP 2022011195A JP 2022115842 A5 JP2022115842 A5 JP 2022115842A5
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- JP
- Japan
- Prior art keywords
- carbon
- iron
- producing
- reducing agent
- magnetite
- 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.)
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 39
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 claims description 28
- 229910052742 iron Inorganic materials 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 16
- 239000003638 chemical reducing agent Substances 0.000 claims description 16
- 239000003575 carbonaceous material Substances 0.000 claims description 15
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 14
- 239000001569 carbon dioxide Substances 0.000 claims description 14
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 14
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 230000002950 deficient Effects 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 claims 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 3
- 239000001257 hydrogen Substances 0.000 claims 3
- 229910052739 hydrogen Inorganic materials 0.000 claims 3
- 241001232253 Xanthisma spinulosum Species 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 2
- 239000002245 particle Substances 0.000 claims 2
- 238000004438 BET method Methods 0.000 claims 1
- 239000000571 coke Substances 0.000 claims 1
- 239000002105 nanoparticle Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 description 1
Description
上記課題を解決するために、この発明は以下の手段を提案している。
即ち、本発明の炭素材料の製造方法は、二酸化炭素と還元剤とを反応させて炭素を生成する炭素生成工程を有し、前記還元剤は、結晶構造を維持したままマグネタイトを還元することで得られる、Ｆｅ３Ｏ４－δ（但し、δは１以上４未満）で表される酸素欠陥鉄酸化物、またはマグネタイトを完全に還元することで得られる、酸素完全欠陥鉄（δ＝４）を用い、前記炭素生成工程を経た酸化された前記還元剤の少なくとも一部を、前記製鉄プラントで消費される製鉄原料として前記製鉄プラントに供給する工程を有することを特徴とする。
In order to solve the above problems, the present invention proposes the following means.
That is, the method for producing a carbon material of the present invention has a carbon generation step of reacting carbon dioxide with a reducing agent to generate carbon, and the reducing agent reduces magnetite while maintaining its crystal structure. Oxygen-deficient iron oxide represented by Fe 3 O 4-δ (where δ is 1 or more and less than 4) or completely oxygen-defective iron (δ=4) obtained by completely reducing magnetite and supplying at least part of the oxidized reducing agent that has undergone the carbon generation step to the iron manufacturing plant as an iron manufacturing raw material to be consumed in the iron manufacturing plant .
本発明の二酸化炭素の分解方法は、二酸化炭素と還元剤とを反応させて二酸化炭素を分解する二酸化炭素分解工程を有し、前記二酸化炭素は、製鉄プラントにおいて発生した排出ガスを用い、前記還元剤は、結晶構造を維持したままマグネタイトを還元することで得られる、Ｆｅ３Ｏ４－δ（但し、δは１以上４未満）で表される酸素欠陥鉄酸化物、またはマグネタイトを完全に還元することで得られる、酸素完全欠陥鉄（δ＝４）を用い、前記炭素生成工程を経た酸化された前記還元剤の少なくとも一部を、前記製鉄プラントで消費される製鉄原料として前記製鉄プラントに供給する工程を有することを特徴とする。 The carbon dioxide decomposition method of the present invention has a carbon dioxide decomposition step of reacting carbon dioxide and a reducing agent to decompose carbon dioxide, and the carbon dioxide is generated by using the exhaust gas generated in a steel plant, and the reduction The agent is an oxygen-deficient iron oxide represented by Fe3O4-δ (where δ is 1 or more and less than 4) obtained by reducing magnetite while maintaining the crystal structure, or by completely reducing magnetite. A step of using the obtained oxygen-completely deficient iron (δ=4) and supplying at least part of the oxidized reducing agent that has undergone the carbon generation step to the iron manufacturing plant as a raw material for iron manufacturing that is consumed in the iron manufacturing plant. characterized by having
Claims (14)
少なくとも前記二酸化炭素または前記水素のいずれか一方のうち、少なくとも一部は、製鉄プラントにおいて発生した排出ガスを用い、
前記還元剤は、結晶構造を維持したままマグネタイトを還元することで得られる、Ｆｅ３Ｏ４－δ（但し、δは１以上４未満）で表される酸素欠陥鉄酸化物、またはマグネタイトを完全に還元することで得られる、酸素完全欠陥鉄（δ＝４）を用い、
前記炭素生成工程を経た酸化された前記還元剤の少なくとも一部を、前記製鉄プラントで消費される製鉄原料として前記製鉄プラントに供給する工程を有することを特徴とする炭素材料の製造方法。 A carbon generation step of reacting carbon dioxide and a reducing agent to generate carbon and magnetite, and a reducing agent generation step of reacting the magnetite and hydrogen to generate the reducing agent,
At least a portion of at least one of the carbon dioxide and the hydrogen uses exhaust gas generated in a steel plant,
The reducing agent is an oxygen-deficient iron oxide represented by Fe 3 O 4-δ (where δ is 1 or more and less than 4) obtained by reducing magnetite while maintaining its crystal structure, or magnetite completely. Using oxygen-completely deficient iron (δ = 4) obtained by reducing to
A method for producing a carbon material , comprising a step of supplying at least part of the oxidized reducing agent that has undergone the carbon generation step to the iron-making plant as an iron-making raw material to be consumed in the iron-making plant .
前記二酸化炭素は、製鉄プラントにおいて発生した排出ガスを用い、
前記還元剤は、結晶構造を維持したままマグネタイトを還元することで得られる、Ｆｅ３Ｏ４－δ（但し、δは１以上４未満）で表される酸素欠陥鉄酸化物、またはマグネタイトを完全に還元することで得られる、酸素完全欠陥鉄（δ＝４）を用い、
前記二酸化炭素分解工程で酸化された前記還元剤の少なくとも一部を、前記製鉄プラントで消費される製鉄原料として前記製鉄プラントに供給することを特徴とする二酸化炭素の分解方法。 Having a carbon dioxide decomposition step of reacting carbon dioxide and a reducing agent to decompose carbon dioxide,
The carbon dioxide uses exhaust gas generated in a steel plant,
The reducing agent is an oxygen-deficient iron oxide represented by Fe 3 O 4-δ (where δ is 1 or more and less than 4) obtained by reducing magnetite while maintaining its crystal structure, or magnetite completely. Using oxygen-completely deficient iron (δ = 4) obtained by reducing to
A method for decomposing carbon dioxide, wherein at least part of the reducing agent oxidized in the carbon dioxide decomposition step is supplied to the iron manufacturing plant as a raw material for iron manufacturing that is consumed in the iron manufacturing plant .
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/272,848 US20240083750A1 (en) | 2021-01-28 | 2022-01-28 | Method for producing carbon material, carbon material, method for decomposing carbon dioxide, and reducing agent |
| CN202280009206.3A CN116685389A (en) | 2021-01-28 | 2022-01-28 | Method for producing carbon material, method for decomposing carbon dioxide, and reducing agent |
| EP22746055.7A EP4286326A1 (en) | 2021-01-28 | 2022-01-28 | Method for producing carbon material, carbon material, method for decomposing carbon dioxide, and reducing agent |
| PCT/JP2022/003437 WO2022163836A1 (en) | 2021-01-28 | 2022-01-28 | Method for producing carbon material, carbon material, method for decomposing carbon dioxide, and reducing agent |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021012447 | 2021-01-28 | ||
| JP2021012447 | 2021-01-28 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2022115842A JP2022115842A (en) | 2022-08-09 |
| JP2022115842A5 true JP2022115842A5 (en) | 2022-08-26 |
| JP7227544B2 JP7227544B2 (en) | 2023-02-22 |
Family
ID=82747627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022011195A Active JP7227544B2 (en) | 2021-01-28 | 2022-01-27 | Method for producing carbon material, carbon material, method for decomposing carbon dioxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7227544B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7367809B2 (en) | 2021-06-29 | 2023-10-24 | 三菱マテリアル株式会社 | Carbon and hydrogen production methods, carbon materials, reducing agents, carbon dioxide decomposition methods |
| EP4365127A1 (en) * | 2021-06-29 | 2024-05-08 | Mitsubishi Materials Corporation | Method for producing carbon and hydrogen, carbon material, reducing agent, and method for decomposing carbon dioxide |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919171A (en) * | 1982-07-23 | 1984-01-31 | Pentel Kk | Ink feeder for ink type wire dot printer |
| JPH01176002A (en) * | 1987-12-29 | 1989-07-12 | Nippon Steel Corp | Method for treating recovered iron powder |
| JPH0461913A (en) * | 1990-06-26 | 1992-02-27 | Nippon Steel Corp | Method and apparatus for decomposing carbon dioxide |
| JPH04225819A (en) * | 1990-12-26 | 1992-08-14 | Honda Motor Co Ltd | Method for cracking and immobilizing co2 |
| JPH0568853A (en) * | 1991-09-11 | 1993-03-23 | Nissan Motor Co Ltd | Method for decomposing and recovering gaseous co2 |
| JP2002257480A (en) | 2001-02-28 | 2002-09-11 | Nkk Corp | Low-co2 exhausting type burning apparatus and method for using the same |
| JP2009249247A (en) | 2008-04-08 | 2009-10-29 | Sumitomo Heavy Ind Ltd | Carbon recovery apparatus and carbon recovery method |
| JP5482802B2 (en) | 2010-01-14 | 2014-05-07 | 新日鐵住金株式会社 | Steel making method |
| JP2012036029A (en) | 2010-08-04 | 2012-02-23 | Mitsui Mining & Smelting Co Ltd | System for conversion of carbon dioxide into carbon monoxide in ironworks |
| CA3077850A1 (en) | 2019-04-04 | 2020-10-04 | Cvmr Energy Metals Inc. | Processes for converting carbon dioxide |
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