JP3339339B2 - Carbon dioxide fixation device - Google Patents
Carbon dioxide fixation deviceInfo
- Publication number
- JP3339339B2 JP3339339B2 JP35736096A JP35736096A JP3339339B2 JP 3339339 B2 JP3339339 B2 JP 3339339B2 JP 35736096 A JP35736096 A JP 35736096A JP 35736096 A JP35736096 A JP 35736096A JP 3339339 B2 JP3339339 B2 JP 3339339B2
- Authority
- JP
- Japan
- Prior art keywords
- reactor
- carbon dioxide
- catalyst
- carbon
- fluidized bed
- 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 - Fee Related
Links
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
- Y02P20/141—Feedstock
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば航空機、宇
宙船、潜水艦、発電所、石油化学産業分野、一般化学工
業分野等において利用できる二酸化炭素固定装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carbon dioxide fixing device that can be used in, for example, aircraft, spacecraft, submarines, power plants, petrochemical industries, general chemical industries, and the like.
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】二酸化炭
素（ＣＯ2 ）を固定するため、触媒の存在下で水素（Ｈ
2 ）と反応させ、水（Ｈ2 Ｏ）とカーボン（Ｃ）とを生
成することが行われている。2. Description of the Related Art In order to fix carbon dioxide (CO 2 ), hydrogen (H 2 ) is used in the presence of a catalyst.
2 ) to produce water (H 2 O) and carbon (C).
【０００３】従来、その二酸化炭素の固定は、反応器内
に充填された触媒の中に、その二酸化炭素と水素とを流
すことで行われていた。Conventionally, the fixation of carbon dioxide has been performed by flowing the carbon dioxide and hydrogen through a catalyst filled in a reactor.
【０００４】その固定により生成されるカーボンは微粉
末状で、その反応器内に充填される触媒の表面を被覆す
る。そのため、その反応の進行に伴って触媒の機能が次
第に阻害され、反応効率が低下する。[0004] The carbon produced by the fixation is in the form of a fine powder, which coats the surface of the catalyst filled in the reactor. Therefore, as the reaction proceeds, the function of the catalyst is gradually inhibited, and the reaction efficiency decreases.
【０００５】そのため、その反応効率が低下する前に処
理を中断し、その反応器内からカーボンと触媒とを取り
出し、触媒を交換した後に、処理を再開させていた。[0005] Therefore, the process is interrupted before the reaction efficiency decreases, the carbon and the catalyst are taken out of the reactor, the catalyst is replaced, and then the process is restarted.
【０００６】すなわち、従来の二酸化炭素の固定は、処
理の中断と再開を繰り返す必要があり、効率が悪く大容
量の二酸化炭素の固定に適したものではなかった。That is, the conventional carbon dioxide fixation requires repeated interruption and resumption of the treatment, which is inefficient and not suitable for fixing a large volume of carbon dioxide.
【０００７】本発明は、上記問題を解決することのでき
る二酸化炭素固定装置を提供することを目的とする。An object of the present invention is to provide a carbon dioxide fixing device that can solve the above-mentioned problems.
【０００８】[0008]
【課題を解決するための手段】本発明は、反応器内で二
酸化炭素を触媒の存在下に水素と反応させて固定する二
酸化炭素固定装置において、その反応進行中に反応生成
物である炭素を反応器から連続的に取り出すことが可能
とされていることを特徴とする。SUMMARY OF THE INVENTION The present invention provides a carbon dioxide fixing apparatus for fixing carbon dioxide by reacting it with hydrogen in the presence of a catalyst in a reactor. It is characterized in that it can be continuously removed from the reactor.
【０００９】本発明の二酸化炭素固定装置は、二酸化炭
素と水素を反応器内に供給することで、その反応器内で
触媒の粒子を浮遊させて流動層を構成可能とされ、その
流動層における反応生成炭素を触媒の粒子と共に落下さ
せて反応器から取り出すことができるように、その反応
器内への二酸化炭素と水素の供給流速が調節可能とさ
れ、その反応器から取り出された触媒と炭素とを分離す
る手段と、その分離された触媒を反応器に戻す手段とが
設けられているのが好ましい。[0009] The carbon dioxide fixing device of the present invention is capable of forming a fluidized bed by supplying carbon dioxide and hydrogen into a reactor, thereby suspending catalyst particles in the reactor. The supply flow rates of carbon dioxide and hydrogen into the reactor can be adjusted so that the reaction product carbon can be dropped from the reactor together with the catalyst particles, and the catalyst and carbon removed from the reactor can be adjusted. And a means for returning the separated catalyst to the reactor.
【００１０】本発明の二酸化炭素固定装置は、二酸化炭
素と水素を反応器内に供給することで、その反応器内で
触媒の粒子を浮遊させて流動層を構成可能とされ、その
流動層を旋回させる手段が設けられ、その旋回により流
動層における触媒と反応生成炭素とが遠心力またはふる
い分けにより分離可能とされると共に、その分離された
炭素は落下することで反応器から取り出し可能とされて
いるのが好ましい。In the carbon dioxide fixing device of the present invention, by supplying carbon dioxide and hydrogen into the reactor, the catalyst particles can be suspended in the reactor to form a fluidized bed. Means for swirling are provided, and by the swirling, the catalyst and reaction product carbon in the fluidized bed can be separated by centrifugal force or sieving, and the separated carbon can be taken out of the reactor by dropping. Is preferred.
【００１１】本発明によれば、二酸化炭素の固定処理を
中断することなく、反応生成炭素を反応器から取り出し
て触媒を常に活性状態に保つことができるので、連続的
に効率良く大容量の二酸化炭素を固定できる。According to the present invention, the reaction product carbon can be taken out of the reactor and the catalyst can always be kept in an active state without interrupting the fixing process of carbon dioxide. Can fix carbon.
【００１２】[0012]
【発明の実施の形態】以下、図面を参照して本発明の実
施形態を説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】図１は、第１実施形態の流動層式二酸化炭
素固定装置１を示し、反応器２、熱交換器３、凝縮器
４、コンプレッサ５、触媒炭素分離器６およびブロア７
を備える。FIG. 1 shows a fluidized bed type carbon dioxide fixing apparatus 1 according to a first embodiment, which comprises a reactor 2, a heat exchanger 3, a condenser 4, a compressor 5, a catalytic carbon separator 6, and a blower 7.
Is provided.
【００１４】その反応器２は、内部に多孔板１０を有
し、その多孔板１０上に流動層を構成する粒子状の触媒
１１が配置される。その反応器２の底部に、熱交換器３
を介してコンプレッサ５が配管接続され、そのコンプレ
ッサ５は二酸化炭素と水素の供給源（図示省略）に配管
接続される。そのコンプレッサ５の駆動により、約１：
２の割合の二酸化炭素と水素の混合ガスが反応器２内に
下方から供給することで、その反応器２内において混合
ガス中に触媒１１の粒子を浮遊させて流動層を構成する
ことが可能とされている。The reactor 2 has a perforated plate 10 inside, and a particulate catalyst 11 constituting a fluidized bed is arranged on the perforated plate 10. At the bottom of the reactor 2, a heat exchanger 3
The compressor 5 is connected to a pipe via a pipe, and the compressor 5 is connected to a supply source (not shown) of carbon dioxide and hydrogen. By driving the compressor 5, about 1:
By supplying a mixed gas of carbon dioxide and hydrogen at a ratio of 2 into the reactor 2 from below, particles of the catalyst 11 can be suspended in the mixed gas in the reactor 2 to form a fluidized bed. It has been.
【００１５】その流動層において、触媒１１の存在下に
二酸化炭素と水素とが反応することで、水と炭素とが生
成されると共に熱が発生する。その二酸化炭素の固定反
応式は以下の通りである。 ＣＯ2 ＋２Ｈ2 ＝２Ｈ2 Ｏ＋Ｃ＋ＨｅａｔIn the fluidized bed, the reaction between carbon dioxide and hydrogen in the presence of the catalyst 11 generates water and carbon and generates heat. The reaction formula for fixing carbon dioxide is as follows. CO 2 + 2H 2 = 2H 2 O + C + Heat
【００１６】その生成された水は蒸気となり、未反応の
二酸化炭素と水素と共に、反応器２の上部から配管を介
して熱交換器３に送られる。その熱交換器３において、
反応発生熱により二酸化炭素と水素とが加熱され、二酸
化炭素の固定反応の促進が図られる。その水蒸気と未反
応ガスは、熱交換器３から配管を介して凝縮器４に送ら
れる。その凝縮器４において水蒸気は凝縮されて系外に
排出される。その未反応ガスは、凝縮器４から配管を介
してコンプレッサ５の入口側に戻される。The generated water becomes steam, and is sent from the upper part of the reactor 2 to the heat exchanger 3 via a pipe together with unreacted carbon dioxide and hydrogen. In the heat exchanger 3,
The carbon dioxide and the hydrogen are heated by the heat generated by the reaction, and the fixing reaction of the carbon dioxide is promoted. The steam and the unreacted gas are sent from the heat exchanger 3 to the condenser 4 via a pipe. Water vapor is condensed in the condenser 4 and discharged out of the system. The unreacted gas is returned from the condenser 4 to the inlet side of the compressor 5 via a pipe.
【００１７】その流動層において生成される炭素は微粉
末状であって、流動層を構成する触媒１１に付着する。
上記コンプレッサ５の運転条件を調節し、反応器２内へ
の二酸化炭素と水素の供給流速を調節することで、その
流動層を構成する触媒１１の一部を、二酸化炭素の固定
反応の進行中において、生成された炭素と共に落下させ
て反応器２から取り出すことが可能とされている。その
反応器２から取り出された二酸化炭素と触媒１１は、配
管を介して触媒炭素分離器６に導入される。The carbon produced in the fluidized bed is in the form of fine powder and adheres to the catalyst 11 constituting the fluidized bed.
By adjusting the operating conditions of the compressor 5 and adjusting the supply flow rates of carbon dioxide and hydrogen into the reactor 2, a part of the catalyst 11 constituting the fluidized bed is removed during the progress of the carbon dioxide fixation reaction. In the above, it is possible to drop together with the generated carbon and take it out of the reactor 2. The carbon dioxide and the catalyst 11 taken out of the reactor 2 are introduced into the catalytic carbon separator 6 via a pipe.
【００１８】その触媒炭素分離器６は遠心分離機または
ふるいにより構成できる。その分離された炭素は系外に
排出され、触媒１１はブロア７により反応器２に戻され
る。The catalytic carbon separator 6 can be constituted by a centrifuge or a sieve. The separated carbon is discharged out of the system, and the catalyst 11 is returned to the reactor 2 by the blower 7.
【００１９】図２は、第２実施形態の流動層式二酸化炭
素固定装置１′を示す。上記実施形態との相違は、触媒
炭素分離器６とブロア７とに代えて、触媒循環用ブロア
２０を用いることで、反応器２′の内部で流動層を構成
する触媒１１と反応生成炭素とを分離する点にある。す
なわち、その循環用ブロア２０は、触媒１１を反応器
２′の外周下部側から外部に吸引した後に、反応器２′
の上部側から反応器２内に循環させる。その触媒を循環
させるためのガスの流れにより流動層を旋回させる。そ
の旋回により生じる遠心力により流動層における触媒１
１と反応生成炭素とが分離され、その分離された炭素は
落下することで反応器２′から取り出される。他は第１
実施形態と同様で、同一部分は同一符号で示す。FIG. 2 shows a fluidized bed carbon dioxide fixing apparatus 1 'according to a second embodiment. The difference from the above embodiment is that a catalyst circulation blower 20 is used instead of the catalyst carbon separator 6 and the blower 7, so that the catalyst 11 constituting the fluidized bed inside the reactor 2 ' Is to separate That is, the circulation blower 20 sucks the catalyst 11 from the lower part of the outer periphery of the reactor 2 ′ to the outside,
Is circulated into the reactor 2 from the upper side of the reactor. The fluidized bed is swirled by the gas flow for circulating the catalyst. Due to the centrifugal force generated by the swirling, the catalyst 1 in the fluidized bed
1 and the reaction product carbon are separated, and the separated carbon is taken out of the reactor 2 'by falling. Others are first
As in the embodiment, the same parts are denoted by the same reference numerals.
【００２０】上記構成によれば、二酸化炭素の固定処理
を中断することなく、反応生成炭素を反応器２から取り
出して触媒１１を常に活性状態に保つことができるの
で、連続的に効率良く大容量の二酸化炭素を固定でき
る。According to the above configuration, the reaction product carbon can be taken out of the reactor 2 and the catalyst 11 can be always kept in an active state without interrupting the fixing process of carbon dioxide. Carbon dioxide can be fixed.
【００２１】なお、本発明は上記実施形態に限定されな
い。例えば、触媒は反応器内において流動層を構成する
ものに限定されず、反応生成炭素を固定処理中に触媒か
ら分離できれば反応器内に充填されていてもよい。The present invention is not limited to the above embodiment. For example, the catalyst is not limited to the one constituting the fluidized bed in the reactor, and may be filled in the reactor as long as the reaction product carbon can be separated from the catalyst during the fixing treatment.
【００２２】[0022]
【発明の効果】本発明によれば、大容量の二酸化炭素を
連続して効率良く固定でき、環境問題解決にも貢献でき
る。According to the present invention, a large amount of carbon dioxide can be continuously and efficiently fixed, and it can contribute to solving environmental problems.
【図１】本発明の第１実施形態の二酸化炭素固定装置の
構成説明図FIG. 1 is a configuration explanatory view of a carbon dioxide fixing device according to a first embodiment of the present invention.
【図２】本発明の第２実施形態の二酸化炭素固定装置の
構成説明図FIG. 2 is a configuration explanatory view of a carbon dioxide fixing device according to a second embodiment of the present invention.
２ 反応器 ６ 触媒炭素分離器 ７ ブロア １１ 触媒 ２０ 触媒循環用ブロア 2 Reactor 6 Catalytic carbon separator 7 Blower 11 Catalyst 20 Blower for catalyst circulation
Claims (3)
水素と反応させて固定する二酸化炭素固定装置におい
て、 その反応進行中に反応生成物である炭素を反応器から連
続的に取り出すことが可能とされている二酸化炭素固定
装置。1. A carbon dioxide fixing device for fixing carbon dioxide by reacting it with hydrogen in the presence of a catalyst in a reactor, wherein carbon as a reaction product is continuously taken out of the reactor during the progress of the reaction. A carbon dioxide fixation device that can be used.
ことで、その反応器内で触媒の粒子を浮遊させて流動層
を構成可能とされ、 その流動層における反応生成炭素を触媒の粒子と共に落
下させて反応器から取り出すことができるように、その
反応器内への二酸化炭素と水素の供給流速が調節可能と
され、 その反応器から取り出された触媒と炭素とを分離する手
段と、その分離された触媒を反応器に戻す手段とが設け
られている請求項１に記載の二酸化炭素固定装置。2. By supplying carbon dioxide and hydrogen into the reactor, the catalyst particles can be suspended in the reactor to form a fluidized bed, and the reaction product carbon in the fluidized bed is converted into the catalyst particles. Means for controlling the supply flow rates of carbon dioxide and hydrogen into the reactor so that the catalyst and carbon can be taken out from the reactor and separated from the catalyst and carbon taken out of the reactor; 2. The carbon dioxide fixing device according to claim 1, further comprising means for returning the separated catalyst to the reactor.
ことで、その反応器内で触媒の粒子を浮遊させて流動層
を構成可能とされ、 その流動層を旋回させる手段が設けられ、 その旋回により流動層における触媒と反応生成炭素とが
遠心力またはふるい分けにより分離可能とされると共
に、その分離された炭素は落下することで反応器から取
り出し可能とされている請求項１に記載の二酸化炭素固
定装置。3. Supplying carbon dioxide and hydrogen into the reactor allows the catalyst particles to float in the reactor to form a fluidized bed, and means for rotating the fluidized bed is provided. 2. The method according to claim 1, wherein the swirling allows the catalyst and the reaction product carbon in the fluidized bed to be separated from each other by centrifugal force or sieving, and the separated carbon can be taken out of the reactor by dropping. Carbon dioxide fixation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35736096A JP3339339B2 (en) | 1996-12-25 | 1996-12-25 | Carbon dioxide fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35736096A JP3339339B2 (en) | 1996-12-25 | 1996-12-25 | Carbon dioxide fixation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10182121A JPH10182121A (en) | 1998-07-07 |
| JP3339339B2 true JP3339339B2 (en) | 2002-10-28 |
Family
ID=18453739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35736096A Expired - Fee Related JP3339339B2 (en) | 1996-12-25 | 1996-12-25 | Carbon dioxide fixation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3339339B2 (en) |
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|---|---|
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