JPH0818802B2 - Carbon dioxide recycling system - Google Patents
Carbon dioxide recycling systemInfo
- Publication number
- JPH0818802B2 JPH0818802B2 JP5102728A JP10272893A JPH0818802B2 JP H0818802 B2 JPH0818802 B2 JP H0818802B2 JP 5102728 A JP5102728 A JP 5102728A JP 10272893 A JP10272893 A JP 10272893A JP H0818802 B2 JPH0818802 B2 JP H0818802B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon dioxide
- carbon
- metal oxide
- treatment
- iron
- 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.)
- Expired - Lifetime
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims description 102
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims description 51
- 239000001569 carbon dioxide Substances 0.000 title claims description 51
- 238000004064 recycling Methods 0.000 title claims description 17
- 229910044991 metal oxide Inorganic materials 0.000 claims description 34
- 150000004706 metal oxides Chemical class 0.000 claims description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 31
- 229910052799 carbon Inorganic materials 0.000 claims description 31
- 238000001994 activation Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 15
- 238000011084 recovery Methods 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 230000002950 deficient Effects 0.000 claims description 12
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 12
- 230000004913 activation Effects 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 229910021645 metal ion Inorganic materials 0.000 claims description 3
- 238000005137 deposition process Methods 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 24
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 17
- -1 iron (III) ions Chemical class 0.000 description 10
- CDVDBGXLSOHXOF-UHFFFAOYSA-N iron(2+);iron(3+);oxygen(2-) Chemical compound [O-2].[Fe+2].[Fe+3] CDVDBGXLSOHXOF-UHFFFAOYSA-N 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 4
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000012770 industrial material Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910000480 nickel oxide Inorganic materials 0.000 description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- WZGNVVUXVXNNOX-UHFFFAOYSA-N [Fe+] Chemical compound [Fe+] WZGNVVUXVXNNOX-UHFFFAOYSA-N 0.000 description 1
- CGZLODVDADZGIY-UHFFFAOYSA-N [O-2].[Fe+2].[Ni+]=O Chemical compound [O-2].[Fe+2].[Ni+]=O CGZLODVDADZGIY-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 231100000676 disease causative agent Toxicity 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- GSRMOLMSZKTISY-UHFFFAOYSA-N iron(2+);iron(3+) Chemical compound [Fe+2].[Fe+3] GSRMOLMSZKTISY-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- JDRCAGKFDGHRNQ-UHFFFAOYSA-N nickel(3+) Chemical compound [Ni+3] JDRCAGKFDGHRNQ-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
- Carbon And Carbon Compounds (AREA)
- Treating Waste Gases (AREA)
- Compounds Of Iron (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、二酸化炭素の再資源化
に関し、特に単体水素を用いない再資源化システムに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the recycling of carbon dioxide, and more particularly to a recycling system that does not use single hydrogen.
【０００２】[0002]
【従来の技術】二酸化炭素は、地球温暖化の主要原因物
質である。この二酸化炭素を再資源化する方法として
は、接触水素化法，電気化学的還元法，光化学的還元法
等がある。このうち、電気化学的還元法，光化学的還元
法は、二酸化炭素の反応効率が極めて悪く、実用的でな
い。従って、二酸化炭素の再資源化法として有望とされ
ているものは接触水素化法のみである（特開平３−１７
０３１６号参照）。Carbon dioxide is a major causative agent of global warming. As a method of recycling this carbon dioxide, there are a catalytic hydrogenation method, an electrochemical reduction method, a photochemical reduction method and the like. Among these, the electrochemical reduction method and the photochemical reduction method are not practical because the reaction efficiency of carbon dioxide is extremely poor. Therefore, the only promising method for recycling carbon dioxide is the catalytic hydrogenation method (JP-A-3-17).
0316).
【０００３】[0003]
【発明が解決しようとする課題】ところが、この接触水
素化法は、水素を多量に必要とする。水素は、現在のと
ころ、多量のエネルギーを投じて得なければならない。
しかも、新規に多量の二酸化炭素が発生することは避け
られない。従って、接触水素化は、全体としてみれば、
二酸化炭素を固定化しているとはいえない。However, this catalytic hydrogenation method requires a large amount of hydrogen. Hydrogen must currently be invested in large amounts of energy.
Moreover, it is inevitable that a large amount of carbon dioxide is newly generated. Therefore, catalytic hydrogenation as a whole
It cannot be said that carbon dioxide is fixed.
【０００４】本発明の目的は、単体水素を用いずに二酸
化炭素を再資源化する二酸化炭素の再資源化システムを
提供することにある。An object of the present invention is to provide a carbon dioxide recycling system for recycling carbon dioxide without using simple hydrogen.
【０００５】[0005]
【課題を解決するための手段】前記目的を達成するた
め、本発明に係る二酸化炭素の再資源化システムは、活
性化処理と、二酸化炭素反応処理と、資源回収処理とを
有する二酸化炭素の再資源化システムであって、活性化
処理は、金属酸化物を真空雰囲気中で加熱し、二酸化炭
素を単体炭素にまで還元可能な活性を有する酸素欠陥型
金属酸化物を生成する処理であり、二酸化炭素反応処理
は、活性化処理で得られた酸素欠陥型金属酸化物に二酸
化炭素を接触させ、酸素欠陥型金属酸化物と反応させて
炭素が析出した炭素析出型金属酸化物を生成する処理で
あり、資源回収処理は、二酸化炭素反応処理で得られた
炭素析出型金属酸化物を酸で処理してイオン化し、不溶
性の単体炭素を再生資源として回収する処理である。In order to achieve the above-mentioned object, a carbon dioxide resource recycling system according to the present invention is a carbon dioxide recycling system having an activation process, a carbon dioxide reaction process, and a resource recovery process. In the resource recovery system, the activation treatment is a treatment in which a metal oxide is heated in a vacuum atmosphere to generate an oxygen-deficient metal oxide having an activity capable of reducing carbon dioxide to simple carbon. Carbon reaction treatment is a treatment in which carbon dioxide is brought into contact with the oxygen-deficient metal oxide obtained in the activation treatment, and reacted with the oxygen-defective metal oxide to generate a carbon-precipitated metal oxide in which carbon is deposited. The resource recovery process is a process in which the carbon-deposited metal oxide obtained by the carbon dioxide reaction process is treated with an acid to be ionized, and insoluble simple carbon is recovered as a recycled resource.
【０００６】また、資源回収処理により生成した金属イ
オンをアルカリ処理して活性化処理に用いる金属酸化物
を再生させるものである。Further, the metal ions produced by the resource recovery process are treated with an alkali to regenerate the metal oxide used for the activation process.
【０００７】また、本発明に係る二酸化炭素の再資源化
システムは、活性化処理と、二酸化炭素反応処理と、資
源回収処理とを有する二酸化炭素の再資源化システムで
あって、活性化処理は、金属酸化物を真空雰囲気中で加
熱し、二酸化炭素を単体炭素にまで還元可能な活性を有
する酸素欠陥型金属酸化物を生成する処理であり、二酸
化炭素反応処理は、活性化処理で得られた酸素欠陥型金
属酸化物に二酸化炭素を接触させ、酸素欠陥型金属酸化
物と反応させて炭素が析出した炭素析出型金属酸化物を
生成する処理であり、資源回収処理は、二酸化炭素反応
処理で得られた炭素析出型金属酸化物を真空雰囲気中で
加熱しつつさらに二酸化炭素と反応させ、生成した可燃
性の炭素析出型マグネタイトを再生資源として回収する
処理である。The carbon dioxide recycle system according to the present invention is a carbon dioxide recycle system having an activation process, a carbon dioxide reaction process, and a resource recovery process. , A process of heating a metal oxide in a vacuum atmosphere to generate an oxygen-deficient metal oxide having an activity capable of reducing carbon dioxide to elemental carbon, and a carbon dioxide reaction process is obtained by an activation process. Carbon dioxide is brought into contact with the oxygen-deficient metal oxide and reacted with the oxygen-deficient metal oxide to produce a carbon-precipitated metal oxide in which carbon is deposited, and the resource recovery process is a carbon dioxide reaction process. This is a treatment in which the carbon-deposited metal oxide obtained in the above step is further reacted with carbon dioxide while being heated in a vacuum atmosphere, and the generated flammable carbon-deposited magnetite is recovered as a recycled resource.
【０００８】また、資源回収処理により生成した可燃性
の炭素析出型マグネタイトは、資源エネルギーとして燃
焼後、活性化処理に用いる金属酸化物として再生させ
る。The combustible carbon-deposited magnetite produced by the resource recovery process is burned as resource energy and then regenerated as a metal oxide used in the activation process.
【０００９】[0009]
【作用】金属酸化物（酸化鉄，酸化ニッケルなど）を原
材料に用い、これを、真空雰囲気中で加熱して活性化す
る。得られた酸素欠陥型金属酸化物は、二酸化炭素を単
体炭素にまで還元が可能である。二酸化炭素を反応させ
ると、酸素欠陥型金属酸化物は、金属酸化物に戻り、そ
の表面に炭素が析出する。金属酸化物は、これをイオン
化すれば、不溶性の炭素単体が分離される。[Function] A metal oxide (iron oxide, nickel oxide, etc.) is used as a raw material, and this is activated by heating in a vacuum atmosphere. The obtained oxygen-deficient metal oxide can reduce carbon dioxide to simple carbon. When carbon dioxide is reacted, the oxygen-defective metal oxide returns to a metal oxide, and carbon is deposited on the surface thereof. When the metal oxide is ionized, insoluble carbon simple substance is separated.
【００１０】また、鉄酸化物であるときには、活性化の
後、高温下で二酸化炭素と反応させ、次いで真空雰囲気
の下で高温加熱する工程を繰り返すと、終に炭素を析出
した可燃性のマグネタイト（炭素析出型マグネタイト）
となる。炭素単体を分離した金属イオンは、アルカリ処
理してもとの金属酸化物となり、炭素析出型の可燃性マ
グネタイトは燃焼により、活性化処理の原材料に戻るた
め、システムとして好ましいクローズトサイクルを実現
する。Further, when it is an iron oxide, the step of reacting with carbon dioxide at a high temperature after activation and then heating at a high temperature in a vacuum atmosphere is repeated. Finally, a flammable magnetite in which carbon is deposited is finally produced. (Carbon deposited magnetite)
Becomes The metal ion separated from the carbon simple substance becomes the original metal oxide after the alkali treatment, and the carbon-deposited combustible magnetite returns to the raw material for the activation treatment by combustion, thus realizing a closed cycle preferable as a system. .
【００１１】[0011]
【実施例】以下、本発明の実施例を図により説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１２】（実施例１）図１において、まず、６ｇの
酸化鉄（ＩＩＩ）鉄（ＩＩ）１を３５０℃，１０-5ｍｍ
Ｈｇで５時間加熱し、酸素欠陥型酸化鉄（ＩＩＩ）鉄
（ＩＩ）２とする。これを３５０℃で二酸化炭素と反応
させ、炭素析出型酸化鉄（ＩＩＩ）鉄（ＩＩ）３を生成
する。この炭素析出型酸化鉄（ＩＩＩ）鉄（ＩＩ）３を
酸（廃酸でも可能）４の水溶液で処理する。これによ
り、金属酸化物は鉄（ＩＩＩ）イオン６及び鉄（ＩＩ）
イオン７となって液中に残り、単体炭素５のみが不溶な
状態となって分離される。この不溶な単体炭素５は、燃
料、工業材料としての有用な再生資源である。(Example 1) In FIG. 1, first, 6 g of iron (III) oxide iron (II) 1 was added at 350 ° C. and 10 −5 mm.
Heat at Hg for 5 hours to obtain oxygen-deficient iron (III) oxide iron (II) 2. This is reacted with carbon dioxide at 350 ° C. to produce carbon-deposited iron (III) oxide iron (II) 3. This carbon-deposited iron (III) oxide iron (II) 3 is treated with an aqueous solution of an acid (which can be a waste acid) 4. As a result, the metal oxide becomes iron (III) ion 6 and iron (II).
Ions 7 remain in the liquid, and only the elemental carbon 5 is separated in an insoluble state. This insoluble elemental carbon 5 is a useful renewable resource as a fuel and an industrial material.
【００１３】また、鉄（ＩＩＩ）イオン６／鉄（ＩＩ）
イオン７の溶液をアルカリ８で処理すれば、もとの酸化
鉄（ＩＩＩ）鉄（ＩＩ）１が沈澱する。このアルカリ処
理の際に、塩９が副生される。この沈澱した酸化鉄（Ｉ
ＩＩ）鉄（ＩＩ）１を活性処理の原料に用いて二酸化炭
素の再資源化処理を繰り返し行うことができる。Further, iron (III) ions 6 / iron (II)
Treatment of the solution of ions 7 with alkali 8 causes the original iron (III) oxide iron (II) 1 to precipitate. During this alkaline treatment, salt 9 is by-produced. This precipitated iron oxide (I
II) Iron (II) 1 can be used as a raw material for activation treatment, and carbon dioxide recycling treatment can be repeated.
【００１４】（実施例２）図２において、まず、６ｇの
酸化鉄（ＩＩＩ）鉄（ＩＩ）１１を３５０℃，１０-5ｍ
ｍＨｇで５時間加熱し、酸素欠陥型酸化鉄（ＩＩＩ）鉄
（ＩＩ）１２とする。これを３５０℃で二酸化炭素と反
応させ、炭素析出型酸化鉄（ＩＩＩ）鉄（ＩＩ）１３と
する。この炭素析出型酸化鉄（ＩＩＩ）鉄（ＩＩ）１３
を再び３５０℃，１０-5ｍｍＨｇで５時間加熱し、酸素
欠陥型とする。この過程を酸化鉄（ＩＩＩ）鉄（ＩＩ）
が可燃性を得る段階まで繰り返し、可燃性をもつ炭素析
出型マグネタイト１４を得る。この炭素析出型マグネタ
イト１４は燃焼して熱エネルギー資源として利用する。
炭素析出型マグネタイト１４は燃焼して、もとの酸化鉄
（ＩＩＩ）鉄（ＩＩ）１となる。この酸化鉄（ＩＩＩ）
鉄（ＩＩ）１を活性処理の原料に用いて、二酸化炭素の
再資源化処理を繰り返し行うことができる。Example 2 In FIG. 2, first, 6 g of iron (III) oxide iron (II) 11 was added at 350 ° C. and 10 −5 m.
It is heated at mHg for 5 hours to obtain oxygen-deficient iron (III) oxide iron (II) 12. This is reacted with carbon dioxide at 350 ° C. to form carbon-deposited iron (III) oxide iron (II) 13. This carbon-deposited iron oxide (III) iron (II) 13
Is again heated at 350 ° C. and 10 −5 mmHg for 5 hours to obtain an oxygen defect type. This process is referred to as iron (III) oxide, iron (II)
Is repeated until it becomes flammable to obtain flammable carbon-precipitated magnetite 14. The carbon-deposited magnetite 14 is burned and used as a thermal energy resource.
The carbon-deposited magnetite 14 burns to become the original iron (III) oxide (II) oxide 1. This iron (III) oxide
Using iron (II) 1 as a raw material for the activation treatment, the carbon dioxide recycling treatment can be repeated.
【００１５】（実施例３）図３において、まず、６ｇの
酸化ニッケル（ＩＩＩ）鉄（ＩＩ）２１を３５０℃，１
０-5ｍｍＨｇで５時間加熱し、酸素欠陥型酸化ニッケル
（ＩＩＩ）鉄（ＩＩ）２２とする。これを３５０℃で二
酸化炭素と反応させ、炭素析出型酸化ニッケル（ＩＩ
Ｉ）鉄（ＩＩ）２３とする。この炭素析出型酸化ニッケ
ル（ＩＩＩ）鉄（ＩＩ）２３を酸２４で処理すると、単
体炭素２５のみが不溶なため分離される。この単体炭素
２５は資源となる。すなわち、二酸化炭素が、単体炭素
として再資源化されたことになる。一方、金属酸化物部
分は、ニッケル（ＩＩＩ）イオン２６及び鉄（ＩＩ）イ
オン２７となり、溶液に移る。これをアルカリ２８で処
理すると、もとの酸化ニッケル（ＩＩＩ）鉄（ＩＩ）２
１の沈澱を生じる。その際、塩２９が副生する。この沈
澱した酸化ニッケル（ＩＩＩ）鉄（ＩＩ）２１は活性化
処理原料に再利用する。(Embodiment 3) Referring to FIG. 3, first, 6 g of nickel (III) oxide iron (II) oxide 21 was added at 350 ° C. for 1 hour.
It is heated at 0 -5 mmHg for 5 hours to obtain oxygen-defective nickel (III) oxide iron (II) 22. This is reacted with carbon dioxide at 350 ° C. to deposit carbon-deposited nickel oxide (II
I) Iron (II) 23. When this carbon-deposited nickel (III) oxide iron (II) 23 is treated with the acid 24, only the elemental carbon 25 is insoluble and separated. This elemental carbon 25 becomes a resource. That is, carbon dioxide has been recycled as simple carbon. On the other hand, the metal oxide portion becomes nickel (III) ions 26 and iron (II) ions 27, and moves to the solution. When this is treated with alkali 28, the original nickel (III) oxide iron (II) 2
A precipitation of 1 is produced. At that time, salt 29 is by-produced. The precipitated nickel (III) oxide iron (II) 21 is reused as a raw material for activation treatment.
【００１６】尚、実施例では、酸化鉄（ＩＩＩ）鉄（Ｉ
Ｉ）、或いは酸化ニッケル（ＩＩＩ）鉄（ＩＩ）を用い
たが、加熱により活性化されて二酸化炭素を炭素にまで
還元する能力をもつ金属酸化物であれば、実施例に例示
した金属酸化物以外のものを用いてもよい。また、実施
例において、加熱処理の際に用いる熱源には、廃熱を利
用することができる。In the examples, iron (III) oxide, iron (I)
I) or nickel (III) oxide iron (II) was used, but any metal oxide having the ability to be activated by heating to reduce carbon dioxide to carbon can be used. Other than these may be used. Further, in the examples, waste heat can be used as the heat source used in the heat treatment.
【００１７】[0017]
【発明の効果】以上のように本発明は、水素を用いない
ため、処理中に二酸化炭素の発生を伴わずに二酸化炭素
の再資源化をクローズドサイクルシステムの中で行うこ
とができ、得られた炭素析出型マグネタイトは、燃料と
して、また、工業材料として広く用いることができ、あ
わせて地球温暖化の解消に貢献できる効果を有する。As described above, since the present invention does not use hydrogen, carbon dioxide can be recycled in a closed cycle system without generation of carbon dioxide during processing. The carbon-deposited magnetite can be widely used as a fuel and as an industrial material, and has an effect of contributing to the elimination of global warming.
【図１】本発明の実施例１を示すフローチャートであ
る。FIG. 1 is a flowchart showing a first embodiment of the present invention.
【図２】本発明の実施例２を示すフローチャートであ
る。FIG. 2 is a flowchart showing a second embodiment of the present invention.
【図３】本発明の実施例３を示すフローチャートであ
る。FIG. 3 is a flowchart showing a third embodiment of the present invention.
１ 酸化鉄（ＩＩＩ）鉄（ＩＩ） ２ 酸素欠陥型酸化鉄（ＩＩＩ）鉄（ＩＩ） ３ 炭素析出型酸化鉄（ＩＩＩ）鉄（ＩＩ） ４ 酸 ５ 単体炭素 ６ 鉄（ＩＩＩ）イオン ７ 鉄（ＩＩ）イオン ８ アルカリ ９ 塩 １１ 酸化鉄（ＩＩＩ）鉄（ＩＩ） １２ 酸素欠陥型酸化鉄（ＩＩＩ）鉄（ＩＩ） １３ 炭素析出型酸化鉄（ＩＩＩ）鉄（ＩＩ） １４ 可燃性を得た炭素析出型マグネタイト ２１ 酸化ニッケル（ＩＩＩ）鉄（ＩＩ） ２２ 酸素欠陥型酸化ニッケル（ＩＩＩ）鉄（ＩＩ） ２３ 炭素析出型酸化ニッケル（ＩＩＩ）鉄（ＩＩ） ２４ 酸 ２５ 単体炭素 ２６ ニッケル（ＩＩＩ）イオン ２７ 鉄（ＩＩ）イオン ２８ アルカリ ２９ 塩 1 iron oxide (III) iron (II) 2 oxygen-defective iron oxide (III) iron (II) 3 carbon deposition iron oxide (III) iron (II) 4 acid 5 simple substance carbon 6 iron (III) ion 7 iron ( II) Ion 8 Alkali 9 salt 11 Iron oxide (III) iron (II) 12 Oxygen-deficient iron oxide (III) iron (II) 13 Carbon deposition type iron (III) iron (II) 14 Combustible carbon Precipitated magnetite 21 Nickel (III) oxide iron (II) 22 Oxygen-deficient nickel (III) oxide Iron (II) 23 Carbon precipitated nickel (III) oxide Iron (II) 24 Acid 25 Elementary carbon 26 Nickel (III) ion 27 iron (II) ion 28 alkali 29 salt
Claims (4)
資源回収処理とを有する二酸化炭素の再資源化システム
であって、 活性化処理は、金属酸化物を真空雰囲気中で加熱し、二
酸化炭素を単体炭素にまで還元可能な活性を有する酸素
欠陥型金属酸化物を生成する処理であり、 二酸化炭素反応処理は、活性化処理で得られた酸素欠陥
型金属酸化物に二酸化炭素を接触させ、酸素欠陥型金属
酸化物と反応させて炭素が析出した炭素析出型金属酸化
物を生成する処理であり、 資源回収処理は、二酸化炭素反応処理で得られた炭素析
出型金属酸化物を酸で処理してイオン化し、不溶性の単
体炭素を再生資源として回収する処理であることを特徴
とする二酸化炭素の再資源化システム。1. An activation treatment and a carbon dioxide reaction treatment,
A carbon dioxide recycling system having a resource recovery process, wherein the activation process is an oxygen-deficient metal having an activity capable of reducing carbon dioxide to simple carbon by heating a metal oxide in a vacuum atmosphere. Carbon dioxide reaction treatment is a carbon deposition process in which carbon dioxide is brought into contact with the oxygen-defective metal oxide obtained in the activation treatment and reacted with the oxygen-defective metal oxide to deposit carbon. Resource recovery treatment is a process for producing precipitated metal oxides. Resource recovery treatment involves treating the carbon-deposited metal oxides obtained in the carbon dioxide reaction process with an acid to ionize and recover insoluble simple carbon as a recycled resource. A carbon dioxide recycling system characterized by being a treatment.
をアルカリ処理して活性化処理に用いる金属酸化物を再
生させることを特徴とする請求項１に記載の二酸化炭素
の再資源化システム。2. The carbon dioxide resource recycling system according to claim 1, wherein the metal ion generated by the resource recovery process is treated with an alkali to regenerate the metal oxide used for the activation process.
資源回収処理とを有する二酸化炭素の再資源化システム
であって、 活性化処理は、金属酸化物を真空雰囲気中で加熱し、二
酸化炭素を単体炭素にまで還元可能な活性を有する酸素
欠陥型金属酸化物を生成する処理であり、 二酸化炭素反応処理は、活性化処理で得られた酸素欠陥
型金属酸化物に二酸化炭素を接触させ、酸素欠陥型金属
酸化物と反応させて炭素が析出した炭素析出型金属酸化
物を生成する処理であり、 資源回収処理は、二酸化炭素反応処理で得られた炭素析
出型金属酸化物を真空雰囲気中で加熱しつつさらに二酸
化炭素と反応させ、生成した可燃性の炭素析出型マグネ
タイトを再生資源として回収する処理であることを特徴
とする二酸化炭素の再資源化システム。3. An activation treatment and a carbon dioxide reaction treatment,
A carbon dioxide recycling system having a resource recovery process, wherein the activation process is an oxygen-deficient metal having an activity capable of reducing carbon dioxide to simple carbon by heating a metal oxide in a vacuum atmosphere. Carbon dioxide reaction treatment is a carbon deposition process in which carbon dioxide is brought into contact with the oxygen-defective metal oxide obtained in the activation treatment and reacted with the oxygen-defective metal oxide to deposit carbon. The resource recovery process is a process to generate precipitation-type metal oxides. Carbon dioxide recycling system, characterized in that it is a process for recovering the carbon-deposited magnetite of the above as a recycled resource.
素析出型マグネタイトは、資源エネルギーとして燃焼
後、活性化処理に用いる金属酸化物として再生させるこ
とを特徴とする請求項３に記載の二酸化炭素の再資源化
システム。4. The carbon dioxide according to claim 3, wherein the flammable carbon-deposited magnetite produced by the resource recovery process is regenerated as a metal oxide used in the activation process after burning as resource energy. Recycling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5102728A JPH0818802B2 (en) | 1993-04-28 | 1993-04-28 | Carbon dioxide recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5102728A JPH0818802B2 (en) | 1993-04-28 | 1993-04-28 | Carbon dioxide recycling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06305720A JPH06305720A (en) | 1994-11-01 |
| JPH0818802B2 true JPH0818802B2 (en) | 1996-02-28 |
Family
ID=14335322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5102728A Expired - Lifetime JPH0818802B2 (en) | 1993-04-28 | 1993-04-28 | Carbon dioxide recycling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0818802B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010282714B2 (en) * | 2009-08-10 | 2013-11-14 | David Randolph Smith | Method and apparatus to sequester CO2 gas |
| JP2023022140A (en) * | 2021-01-28 | 2023-02-14 | 三菱マテリアル株式会社 | carbon material, reducing agent |
-
1993
- 1993-04-28 JP JP5102728A patent/JPH0818802B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06305720A (en) | 1994-11-01 |
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