JP2001087627A - Carbon dioxide fixing apparatus - Google Patents
Carbon dioxide fixing apparatusInfo
- Publication number
- JP2001087627A JP2001087627A JP26601399A JP26601399A JP2001087627A JP 2001087627 A JP2001087627 A JP 2001087627A JP 26601399 A JP26601399 A JP 26601399A JP 26601399 A JP26601399 A JP 26601399A JP 2001087627 A JP2001087627 A JP 2001087627A
- Authority
- JP
- Japan
- Prior art keywords
- carbon
- reaction
- gas
- carbon dioxide
- stainless steel
- 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.)
- Withdrawn
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 50
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 50
- 238000006243 chemical reaction Methods 0.000 claims abstract description 64
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 57
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 29
- 239000010935 stainless steel Substances 0.000 claims abstract description 29
- 239000012495 reaction gas Substances 0.000 claims abstract description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000001257 hydrogen Substances 0.000 claims description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 15
- 230000003100 immobilizing effect Effects 0.000 claims description 6
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 45
- 239000007789 gas Substances 0.000 abstract description 35
- 238000010438 heat treatment Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-AKLPVKDBSA-N carbane Chemical compound [15CH4] VNWKTOKETHGBQD-AKLPVKDBSA-N 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 101100219325 Phaseolus vulgaris BA13 gene Proteins 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、二酸化炭素固定化
装置に係わり、特に、粒状の触媒を充填した反応槽を用
いなくて、水素と二酸化炭素から炭素を固定化する固定
化装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for fixing carbon dioxide, and more particularly to an apparatus for fixing carbon from hydrogen and carbon dioxide without using a reaction tank filled with a granular catalyst.
【０００２】[0002]
【従来の技術】大気中の温室効果ガス濃度を低減するた
めに、いろいろな方法が研究されている。大気中の二酸
化炭素（ＣＯ２）や、発電所、製鉄所、セメント工場な
どから大量に排出されるＣＯ２を排出源で固定して再資
源化する方法の一つに、例えば、水素（Ｈ２）雰囲気下
でＣＯ２を還元し、微粉状炭素に変換する方法が考案さ
れている。その変換方式は、大気や排ガスからＣＯ２を
分離するＣ０２分離装置や、その分離されたＣＯ２を濃
縮するＣＯ２濃縮装置、ＣＯ２とＨ２を触媒存在下で反
応させて微粉状炭素を生成するＣＯ２／Ｈ２反応装置な
どから構成されている。このＣＯ２／Ｈ２反応装置（以
下、二酸化炭素固定化装置という）は、例えば、ＳｉＯ
２やＡｌ２Ｏ３を担体とするＮｉ、Ｃｏなどの触媒を備
え、Ｈ２と固定化するＣＯ２とを取り込み、触媒存在下
で反応させて連続的に水素と水を生成する。その反応式
は、ＣＯ２＋２Ｈ２→Ｃ＋２Ｈ２Ｏ−９６．０ｋＪ／ｍ
ｏｌである。二酸化炭素と水素の反応式から判るように
二酸化炭素１ｍｏｌ当たり９６．０ｋＪの熱量を発生す
る。また、二酸化炭素固定化装置で生成した水蒸気（Ｈ
２Ｏ）を凝縮する凝縮部が設けられ、その凝縮部を通す
ことによって、生成した水を排出する。2. Description of the Related Art Various methods have been studied to reduce the concentration of greenhouse gases in the atmosphere. For example, hydrogen (H 2 ) is one of the methods for fixing carbon dioxide (CO 2 ) in the atmosphere and CO 2 , which is emitted in large quantities from power plants, steelworks, cement plants, etc., at the emission source and recycling it. 2 ) A method has been devised in which CO 2 is reduced in an atmosphere to convert it into finely divided carbon. Its conversion method, C0 2 separator and for separating the CO 2 from the atmosphere or exhaust gas, the separated CO 2 concentrator for concentrating CO 2 was, the CO 2 and H 2 are reacted in the presence of catalyst fines carbon And a CO 2 / H 2 reaction device for producing the same. This CO 2 / H 2 reaction device (hereinafter referred to as a carbon dioxide fixing device) is, for example, SiO 2
It is provided with a catalyst such as Ni or Co using 2 or Al 2 O 3 as a carrier, takes in H 2 and CO 2 to be immobilized, and reacts in the presence of the catalyst to continuously generate hydrogen and water. The reaction formula is: CO 2 + 2H 2 → C + 2H 2 O-96.0 kJ / m
ol. As can be seen from the reaction formula of carbon dioxide and hydrogen, 96.0 kJ of heat is generated per 1 mol of carbon dioxide. In addition, water vapor (H
2 O) condensing part for condensing is provided by passing the condenser unit, to discharge the generated water.
【０００３】図２に従来の二酸化炭素固定化装置の概要
図を示す。固定化する二酸化炭素と水素ガスが所定の混
合比にされてガス供給口１から装置内に供給される。コ
ンプレッサ２は、供給ガスの圧力を高め熱交換器３に導
入する。熱交換器３は、反応槽５の排気管８からの高温
の排気ガスの予熱を吸収して、コンプレッサ２からの供
給ガスを暖める。ここで熱交換された供給ガスはガス導
入口４から反応槽５に導入される。反応槽５は、図３に
示すように、内部に触媒７を入れた反応器５ａが設けら
れ、この反応器５ａは、下部からの反応ガスが触媒７の
間を上部に通りぬけることができ、触媒７が外部の加熱
炉１４の遠赤外線ヒータ１６によって５００〜６００℃
程度に加熱される。触媒７として、ＳｉＯ２やＡｌ２Ｏ
３を担体とするＮｉ、Ｃｏなどの触媒が用いられる。加
熱された触媒７に反応ガスが触れ、触媒反応により炭素
と水蒸気になる。炭素は、触媒表面に着床し固定化炭素
１５となる。高温の未反応ガス及び水蒸気は反応槽５の
上部の排気管８から排出される。排出されたガスは熱交
換器３を通り、熱の一部を放出し、凝縮器９に導入され
る。凝縮器９は、高温の水蒸気を凝縮し、水として外部
に排出する。残りの未反応のガスは冷却されて元のガス
供給管に戻り、再び外部からの二酸化炭素・水素反応ガ
スと混合されて、コンプレッサ２で圧縮される。そして
固定化装置を再び循環する。FIG. 2 shows a schematic view of a conventional carbon dioxide fixing device. The carbon dioxide and the hydrogen gas to be immobilized are adjusted to a predetermined mixing ratio and supplied from the gas supply port 1 into the apparatus. The compressor 2 increases the pressure of the supply gas and introduces it into the heat exchanger 3. The heat exchanger 3 absorbs the preheating of the high-temperature exhaust gas from the exhaust pipe 8 of the reaction tank 5 and warms the supply gas from the compressor 2. The heat-exchanged supply gas is introduced into the reaction tank 5 through the gas inlet 4. As shown in FIG. 3, the reactor 5 is provided with a reactor 5a containing a catalyst 7 therein, and the reactor 5a allows a reaction gas from a lower portion to pass between the catalysts 7 to an upper portion. The catalyst 7 is heated to 500 to 600 ° C. by the far infrared heater 16 of the external heating furnace 14.
Heated to a degree. As the catalyst 7, SiO 2 or Al 2 O
A catalyst such as Ni or Co using 3 as a carrier is used. The reactant gas comes into contact with the heated catalyst 7, and is converted into carbon and water vapor by the catalytic reaction. The carbon is implanted on the surface of the catalyst and becomes immobilized carbon 15. The high-temperature unreacted gas and steam are discharged from the exhaust pipe 8 at the upper part of the reaction tank 5. The discharged gas passes through the heat exchanger 3, releases part of the heat, and is introduced into the condenser 9. The condenser 9 condenses high-temperature steam and discharges it as water. The remaining unreacted gas is cooled, returns to the original gas supply pipe, is mixed again with a carbon dioxide / hydrogen reaction gas from the outside, and is compressed by the compressor 2. Then, the fixing device is circulated again.
【０００４】所定時間、反応ガスを循環させたのち、固
定化装置の電源を止めて、定期的に固定化した炭素を触
媒７と共に反応槽５から取り出す作業を行う。反応槽５
の下部に設けられた触媒／炭素排出口１０を開放にし
て、反応器５ａの下部に設けられた触媒流動槽保持機構
６をレリーズする。反応器５ａの内部に固定化され触媒
７上に付着した固定化炭素１５が、触媒７と共に下方に
降下し、触媒／炭素排出口１０から排出される。排出さ
れた固定化炭素１５と触媒７は触媒炭素分離器１１に貯
められる。この両者を機械的に振動させて触媒７上に付
着した炭素を剥離し、サイクロンで触媒７と炭素を分離
して、炭素のみを外部に取りだす。炭素が分離された触
媒は、触媒再生器１２に導入され、活性剤を入れて新し
い触媒に再生される。再生された触媒７は再び、反応槽
５の上部に設けられた触媒供給口１３から反応槽５の内
部の反応器５ａに導入される。この作業を繰り返し、二
酸化炭素から炭素を固定化する。After circulating the reaction gas for a predetermined time, the power of the fixing device is stopped, and the operation of periodically removing the fixed carbon together with the catalyst 7 from the reaction tank 5 is performed. Reaction tank 5
The catalyst / carbon outlet 10 provided in the lower part of the reactor 5a is opened, and the catalyst fluid tank holding mechanism 6 provided in the lower part of the reactor 5a is released. The immobilized carbon 15 fixed inside the reactor 5a and adhered on the catalyst 7 descends together with the catalyst 7, and is discharged from the catalyst / carbon outlet 10. The discharged immobilized carbon 15 and the catalyst 7 are stored in the catalytic carbon separator 11. The two are mechanically vibrated to separate the carbon adhered on the catalyst 7, the catalyst 7 and the carbon are separated by a cyclone, and only the carbon is taken out. The catalyst from which the carbon has been separated is introduced into the catalyst regenerator 12 and is regenerated to a new catalyst by adding an activator. The regenerated catalyst 7 is again introduced into the reactor 5a inside the reaction tank 5 from the catalyst supply port 13 provided in the upper part of the reaction tank 5. This operation is repeated to fix carbon from carbon dioxide.
【０００５】[0005]
【発明が解決しようとする課題】従来の二酸化炭素固定
化装置は以上のように構成されているが、粉末、球状等
の触媒７を反応槽５の反応器５ａ内に充填して、二酸化
炭素の固定化反応を行わせ、触媒７の表面上に炭素を析
出させていたため、炭素の分離が非常に困難であるとい
う問題がある。そのため炭素のみを分離する際にも多少
の触媒７が混入する。炭素と触媒７を分離するのに、ま
ず触媒炭素分離器１１内でアルミナ等で触媒７に付着し
た炭素を機械的に剥離し、さらにサイクロンで触媒と炭
素を分離していた。二酸化炭素固定化反応の効率は、触
媒７の形状に大きく左右され、触媒７を工業的に製造す
るのも特殊な技術を必要とするという課題がある。ま
た、反応槽５内の反応器５ａは反応ガスが触媒７の間を
流れるように流動槽を必要とし、流動的状態に触媒７を
保持するのに困難を伴うという問題がある。The conventional carbon dioxide fixing apparatus is constructed as described above. However, a catalyst 7, such as a powder or a sphere, is charged into a reactor 5a of a reaction tank 5, and the carbon dioxide is fixed. , And carbon is deposited on the surface of the catalyst 7, so that there is a problem that the separation of carbon is very difficult. Therefore, even when only carbon is separated, some catalyst 7 is mixed. In order to separate carbon and the catalyst 7, first, carbon attached to the catalyst 7 was mechanically separated with alumina or the like in the catalytic carbon separator 11, and then the catalyst and carbon were separated by a cyclone. The efficiency of the carbon dioxide fixing reaction greatly depends on the shape of the catalyst 7, and there is a problem that industrial production of the catalyst 7 requires a special technique. Further, the reactor 5a in the reaction tank 5 requires a fluid tank so that the reaction gas flows between the catalysts 7, and there is a problem that it is difficult to keep the catalyst 7 in a fluid state.
【０００６】本発明は、このような事情に鑑みてなされ
たものであって、粒状の触媒７を用いなくても二酸化炭
素の固定化ができ、固定化された炭素の分離が容易で、
しかも、反応槽５の内部の二酸化炭素と水素ガスの反応
ための流動槽の保持が容易な二酸化炭素固定化装置を提
供することを目的とする。The present invention has been made in view of such circumstances, and it is possible to fix carbon dioxide without using a granular catalyst 7, and to separate the fixed carbon easily.
Moreover, it is an object of the present invention to provide a carbon dioxide immobilizing device that can easily hold a fluidized vessel for reacting carbon dioxide and hydrogen gas inside the reaction vessel 5.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
め本発明の二酸化炭素固定化装置は、水素と二酸化炭素
を反応ガス源として二酸化炭素を固定化する二酸化炭素
固定化装置において、反応槽内に水素と二酸化炭素を接
触還元反応をして表面に炭素を析出させるステンレス板
を備えるものである。According to the present invention, there is provided a carbon dioxide fixing apparatus for fixing carbon dioxide by using hydrogen and carbon dioxide as reaction gas sources. It has a stainless steel plate in which hydrogen and carbon dioxide are subjected to a catalytic reduction reaction to deposit carbon on the surface.
【０００８】本発明の二酸化炭素固定化装置は上記のよ
うに構成されており、水素と二酸化炭素を４００〜８０
０℃に加熱されたステンレス板表面に導入し、二酸化炭
素固定化反応を行わせ、ステンレス板上に炭素を析出さ
せる。所定時間連続して反応させたら、終了して、反応
槽内のステンレス板に機械的な振動を与えて、ステンレ
ス板上に析出した炭素を剥離させ、炭素を回収する。反
応槽を２個用意し、一つを反応稼動させている時に、他
方の反応槽を炭素回収作業を行うという運用をすれば、
連続して二酸化炭素の固定化作業を行うことができる。
粒状の触媒などの準備をする必要もなく、配管系統など
が簡素化される。そのため二酸化炭素固定化装置のコス
ト削減にもなる。The apparatus for immobilizing carbon dioxide of the present invention is constructed as described above, and is used to remove hydrogen and carbon dioxide from 400 to 80.
It is introduced onto the surface of a stainless steel plate heated to 0 ° C., and a carbon dioxide fixing reaction is performed to deposit carbon on the stainless steel plate. After the reaction is continuously performed for a predetermined time, the process is completed, and mechanical vibration is applied to the stainless steel plate in the reaction tank to peel off carbon deposited on the stainless steel plate and collect carbon. If two reactors are prepared and one of them is operated for reaction, and the other is used for carbon recovery,
The operation of immobilizing carbon dioxide can be continuously performed.
There is no need to prepare a granular catalyst or the like, and the piping system is simplified. Therefore, the cost of the carbon dioxide fixing device can be reduced.
【０００９】[0009]
【発明の実施の形態】本発明の二酸化炭素固定化装置の
一実施例を図１を参照しながら説明する。本二酸化炭素
固定化装置は、二酸化炭素と水素反応ガスを反応させて
炭素を固定化する二個の反応槽１７ａ、１７ｂと、所定
の割合に混合された二酸化炭素・水素反応ガスを導入す
るガス供給口１ａ、ガス導入口４ａ、４ｂと、反応後の
ガス排出用の排気管８ａ、８ｂと、その排出ガスを凝縮
する凝縮器９とから構成されている。反応槽１７ａ、１
７ｂは、内部に縦状に所定の間隔を空けて数多くのステ
ンレス板２０が、ガス分散器１８ａ、１８ｂの上部に設
けられている。下部にガス導入口４ａ、４ｂと、炭素排
出用のバルブＶｇ、Ｖｈが設けられ、上部に反応後のガ
スを排出する排気管８ａ、８ｂが設けられている。ステ
ンレス板２０は、反応槽１７ａ、１７ｂ外周に設けられ
た加熱炉１４ａ、１４ｂにより、４００〜８００℃に加
熱されて、その表面で導入された二酸化炭素と水素が反
応し、その反応式は、ＣＯ２＋２Ｈ２→Ｃ＋２Ｈ２Ｏ−
９６．０ｋＪ／ｍｏｌである。二酸化炭素と水素の反応
式から判るように二酸化炭素１ｍｏｌ当たり９６．０ｋ
Ｊの熱量を発生する。そして、ステンレス板２０の表面
に炭素が析出して固定化される。水蒸気は上方に排気さ
れる。ガス分散器１８ａ、１８ｂは、ガス導入口４ａ、
４ｂから導入された反応ガスが反応槽１７ａ、１７ｂ内
に一様に分散して上方に流動するように設けられたもの
で、外部の加振器１９ａ、１９ｂと連結されている。加
振器１９ａ、１９ｂは、ガス分散器１８ａ、１８ｂとそ
の上に設けられたステンレス板２０を機械的に振動させ
ることができる。振動させることによって、ステンレス
板２０の上に析出した固定化炭素を反応槽１７ａ、１７
ｂの下方にふるい落とすことができる。加熱炉１４ａ、
１４ｂは、反応槽１７ａ、１７ｂの外周に設けられ、内
部のステンレス板２０を４００〜８００℃に加熱制御す
ることができる。バルブＶｇ、Ｖｈは、ステンレス板２
０に固定化された炭素を排出するために反応槽１７ａ、
１７ｂの下部に設けられ、ここから固定化された炭素が
取り出される。バルブＶａ、Ｖｂ、Ｖｃ、Ｖｄ、Ｖｆ、
Ｖｅは、反応槽１７ａ、１７ｂに反応ガスを導入した
り、遮断したり、排出したりするために設けられ、反応
ガスの流路を制御している。凝縮器９は、反応槽１７
ａ、１７ｂで二酸化炭素と水素が反応してできた高温の
水蒸気、未反応の反応ガスを導入して冷却し、水にして
外部に排出される。残りの反応ガスは再びガス供給口１
ａに戻され、固定化装置を循環する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the carbon dioxide fixing device of the present invention will be described with reference to FIG. This carbon dioxide fixing device comprises two reaction tanks 17a and 17b for reacting carbon dioxide and a hydrogen reaction gas to fix carbon, and a gas for introducing a carbon dioxide / hydrogen reaction gas mixed in a predetermined ratio. It comprises a supply port 1a, gas introduction ports 4a and 4b, exhaust pipes 8a and 8b for discharging gas after reaction, and a condenser 9 for condensing the exhaust gas. Reaction tanks 17a, 1
7b, a large number of stainless steel plates 20 are provided vertically above the gas distributors 18a and 18b at predetermined intervals. Gas inlets 4a and 4b and valves Vg and Vh for discharging carbon are provided in the lower part, and exhaust pipes 8a and 8b for discharging gas after the reaction are provided in the upper part. The stainless steel plate 20 is heated to 400 to 800 ° C. by heating furnaces 14 a and 14 b provided on the outer periphery of the reaction tanks 17 a and 17 b, and carbon dioxide and hydrogen introduced on the surface react with each other. CO 2 + 2H 2 → C + 2H 2 O−
96.0 kJ / mol. As can be seen from the reaction formula of carbon dioxide and hydrogen, 96.0 k per mol of carbon dioxide
Generates J heat. Then, carbon deposits on the surface of the stainless steel plate 20 and is fixed. The water vapor is exhausted upward. The gas dispersers 18a and 18b are connected to the gas inlet 4a,
The reaction gas introduced from 4b is provided so as to be uniformly dispersed in the reaction vessels 17a and 17b and flows upward, and is connected to external vibrators 19a and 19b. The vibrators 19a and 19b can mechanically vibrate the gas dispersers 18a and 18b and the stainless steel plate 20 provided thereon. By vibrating, the immobilized carbon deposited on the stainless steel plate 20 is removed from the reaction tanks 17a, 17a.
b can be sifted below. Heating furnace 14a,
14b is provided on the outer periphery of the reaction tanks 17a and 17b, and can control heating of the internal stainless steel plate 20 to 400 to 800C. Valves Vg and Vh are stainless steel plate 2
Reaction vessel 17a to discharge carbon fixed to zero,
It is provided at the lower part of 17b, from which the immobilized carbon is taken out. Valves Va, Vb, Vc, Vd, Vf,
Ve is provided for introducing, shutting off, and discharging the reaction gas into the reaction tanks 17a and 17b, and controls the flow path of the reaction gas. The condenser 9 includes a reaction tank 17
The high-temperature steam produced by the reaction of carbon dioxide and hydrogen in a and 17b, and the unreacted reaction gas are introduced and cooled, and the water is discharged to the outside. The remaining reactant gas is again supplied to gas supply port 1
a and circulates through the immobilization device.
【００１０】反応槽１７ａと反応槽１７ｂの２式を用意
して、一つを反応稼動させている時に、他方の反応槽を
炭素回収作業を行うという運用をする。このようにシス
テムを構築して、連続して二酸化炭素の固定化作業を行
う。Two types of reaction tanks 17a and 17b are prepared, and one of them is operated for reaction while the other is used for carbon recovery. By constructing the system in this way, the operation of immobilizing carbon dioxide is continuously performed.
【００１１】次に、本装置の動作について図１を参照し
ながら説明する。まず、反応槽１７ａ、１７ｂの加熱炉
１４ａ、１４ｂによりステンレス板２０を４００〜８０
０℃に加熱する。次に、バルブＶｅ、Ｖｃ、Ｖｄ、Ｖ
ａ、Ｖｂを開ける。そして、ガス供給口１ａから所定の
割合に混合された二酸化炭素・水素反応ガスを、装置の
内部に送り込む。反応ガスは反応槽１７ａ、１７ｂに導
入される。反応ガスはステンレス板２０に触れ、ＣＯ２
＋２Ｈ２→Ｃ＋２Ｈ２Ｏ−９６．０ｋＪ／ｍｏｌの炭素
固定化反応が行なわれる。この時、二酸化炭素と水素の
反応式から判るように、二酸化炭素１ｍｏｌ当たり９
６．０ｋＪの熱量を発生する。加熱炉１４ａ、１４ｂか
らのエネルギー供給量をその分だけ低減することができ
る。そして、ステンレス板２０の表面に炭素が析出して
固定化される。反応後の水蒸気は上方に排気される。高
温の水蒸気及び残りの未反応の反応ガスは凝縮器９に導
入され、そこで冷却されて凝縮し水蒸気は水として外部
に排出される。未反応ガスは再びガス供給口１ａに戻さ
れ、再循環される。所定の時間経過してステンレス板２
０に炭素が固定化すれば、まず、片方の反応槽１７ａの
運転を止め、ガス導入口４ａのバルブＶａ及び排気管８
ａのバルブＶｃを閉める。そして、反応槽１７ａの下部
のバルブＶｇを開放にする。この状態で加振器１９ａを
動作させ、ガス分散器１８ａの上に設けられたステンレ
ス板２０を振動させる。ステンレス板２０の上に析出し
ていた炭素を振動によって反応槽１７ａの下方にふるい
落とす。そして、バルブＶｇから炭素を外部に取り出
す。この作業が完了すれば、バルブＶｃ及びバルブＶａ
を開けて、再び加熱炉１４ａの電源をＯＮして反応層１
７ａを運転する。そして、次に、反応槽１７ｂの運転を
止め、バルブＶｂ、Ｖｄを閉めて、バルブＶｈを開放に
し、加振器１９ｂを動作させステンレス板２０を振動さ
せて、炭素をふるい落とす。そして、炭素をバルブＶｈ
から外部に取り出す。このようにして反応槽１７ａと反
応槽１７ｂを交互に運転し、連続して炭素の固定化が行
なわれる。Next, the operation of the present apparatus will be described with reference to FIG. First, the stainless steel plate 20 is placed in the heating furnaces 14a and 14b of the reaction tanks 17a and 17b to form
Heat to 0 ° C. Next, valves Ve, Vc, Vd, V
Open a and Vb. Then, a carbon dioxide / hydrogen reaction gas mixed at a predetermined ratio is sent from the gas supply port 1a into the inside of the apparatus. The reaction gas is introduced into the reaction tanks 17a and 17b. The reaction gas touches the stainless steel plate 20 and the CO 2
+ 2H 2 → C + 2H 2 O-96.0 kJ / mol carbon immobilization reaction is performed. At this time, as can be seen from the reaction formula of carbon dioxide and hydrogen, 9
Generates 6.0 kJ of heat. The amount of energy supplied from the heating furnaces 14a and 14b can be reduced accordingly. Then, carbon deposits on the surface of the stainless steel plate 20 and is fixed. The water vapor after the reaction is exhausted upward. The high-temperature steam and the remaining unreacted reaction gas are introduced into the condenser 9 where they are cooled and condensed, and the steam is discharged to the outside as water. The unreacted gas is returned to the gas supply port 1a again and is recirculated. After a predetermined time, the stainless steel plate 2
When the carbon is fixed to 0, first, the operation of one of the reaction vessels 17a is stopped, and the valve Va and the exhaust pipe 8 of the gas inlet 4a are stopped.
The valve Vc of a is closed. Then, the valve Vg at the lower part of the reaction tank 17a is opened. In this state, the vibrator 19a is operated to vibrate the stainless steel plate 20 provided on the gas distributor 18a. The carbon deposited on the stainless steel plate 20 is sifted below the reaction tank 17a by vibration. Then, carbon is taken out from the valve Vg. When this operation is completed, the valve Vc and the valve Va
Is opened, the power of the heating furnace 14a is turned on again, and the reaction layer 1 is turned on.
Drive 7a. Then, the operation of the reaction tank 17b is stopped, the valves Vb and Vd are closed, the valve Vh is opened, the vibrator 19b is operated to vibrate the stainless steel plate 20, and the carbon is eliminated. Then, carbon is supplied to the valve Vh.
From the outside. In this way, the reaction tanks 17a and 17b are alternately operated to continuously fix carbon.
【００１２】上記のステンレス板２０は固定化反応の触
媒作用を行うものであり、そのステンレス板２０の材質
組成を変えることにより、より触媒反応を促進すること
ができる。例えば、鉄、ニッケル、クロムの組成比を変
えることで、最適な触媒性能のステンレス板２０を作成
できる。また、反応槽１７ａ、１７ｂの材質をステンレ
スにすれば、反応槽１７ａ、１７ｂに炭素が析出する。
この場合は反応槽１７ａ、１７ｂ全体を加振器１９ａ、
１９ｂで振動させて炭素を剥離すれば良い。また反応槽
１７ａ、１７ｂに炭素を析出させたくない場合は、反応
槽１７ａ、１７ｂの内面をフッソ等でコーティングする
ことにより、内面に炭素が析出しない。The stainless steel plate 20 serves as a catalyst for the immobilization reaction. By changing the material composition of the stainless steel plate 20, the catalytic reaction can be further promoted. For example, by changing the composition ratio of iron, nickel, and chromium, a stainless steel plate 20 having optimum catalytic performance can be produced. Further, if the material of the reaction tanks 17a and 17b is made of stainless steel, carbon is deposited on the reaction tanks 17a and 17b.
In this case, the entirety of the reaction tanks 17a and 17b is
What is necessary is just to vibrate at 19b and to peel off carbon. If it is not desired to deposit carbon in the reaction tanks 17a and 17b, the inner surfaces of the reaction tanks 17a and 17b are coated with a fluorine or the like so that no carbon deposits on the inner surfaces.
【００１３】[0013]
【発明の効果】本発明の二酸化炭素固定化装置は上記の
ように構成されており、反応槽のステンレス板に機械的
な振動を与えるだけで、炭素が分離でき、従来のような
粒状の触媒を使用したときのような煩雑な操作をする必
要がなく、非常に簡単に炭素が回収できる。また、ステ
ンレス板を縦に並べた固定槽で連続的に二酸化炭素固定
反応を行うことができ、従来のような粒状の触媒を反応
器に充填した流動槽でないので二酸化炭素固定化装置の
固定費及び運用経費が低減でき、さらに、配管が簡素化
され、装置がコンパクトになる。The carbon dioxide fixing apparatus of the present invention is constructed as described above, and carbon can be separated only by applying mechanical vibration to the stainless steel plate of the reaction tank. There is no need to perform a complicated operation as in the case of using, and carbon can be recovered very easily. In addition, the carbon dioxide fixation reaction can be continuously performed in a fixed tank in which stainless steel plates are arranged vertically, and the fixed cost of the carbon dioxide fixation device is not required because it is not a fluidized tank filled with a granular catalyst as in the conventional reactor. In addition, the operating cost can be reduced, the piping is simplified, and the device becomes compact.
【図１】 本発明の二酸化炭素固定化装置の一実施例を
示す図である。FIG. 1 is a diagram showing one embodiment of a carbon dioxide fixing device of the present invention.
【図２】 従来の二酸化炭素固定化装置を示す図であ
る。FIG. 2 is a view showing a conventional carbon dioxide fixing device.
【図３】 従来の二酸化炭素固定化装置の反応槽を示す
図である。FIG. 3 is a view showing a reaction tank of a conventional carbon dioxide fixing device.
１、１ａ…ガス供給口 ２…コンプレッ
サ ３…熱交換器 ４、４ａ、４ｂ
…ガス導入口 ５…反応槽 ６…触媒流動槽
保持機構 ７…触媒 ８、８ａ、８ｂ
…排気管 ９…凝縮器 １０…触媒／炭素
排出口 １１…触媒炭素分離器 １２…触媒再生
器 １３…触媒供給口 １４、１４ａ、
１４ｂ…加熱炉 １５…固定化炭素 １６…遠赤外線
ヒータ １７ａ、１７ｂ…反応槽 １８ａ、１８ｂ
…ガス分散器 １９ａ、１９ｂ…加振器 ２０…ステンレ
ス板 Ｖａ、Ｖｂ、Ｖｃ、Ｖｄ、Ｖｅ、Ｖｆ、Ｖｇ、Ｖｈ…バ
ルブ1, 1a ... gas supply port 2 ... compressor 3 ... heat exchanger 4, 4a, 4b
... gas inlet 5 ... reaction tank 6 ... catalyst fluidizing tank holding mechanism 7 ... catalyst 8, 8a, 8b
... exhaust pipe 9 ... condenser 10 ... catalyst / carbon outlet 11 ... catalytic carbon separator 12 ... catalyst regenerator 13 ... catalyst supply port 14, 14a,
14b: heating furnace 15: immobilized carbon 16: far-infrared heater 17a, 17b: reaction tank 18a, 18b
... gas dispersers 19a, 19b ... vibrators 20 ... stainless plates Va, Vb, Vc, Vd, Ve, Vf, Vg, Vh ... valves
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4D002 AA09 BA06 BA12 BA13 CA07 CA09 DA21 DA54 EA13 4G046 CA01 CC02 CC08 CC09 4G075 AA04 BA01 BA06 BD04 BD14 CA02 CA54 EA06 EB01 FB02 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D002 AA09 BA06 BA12 BA13 CA07 CA09 DA21 DA54 EA13 4G046 CA01 CC02 CC08 CC09 4G075 AA04 BA01 BA06 BD04 BD14 CA02 CA54 EA06 EB01 FB02
Claims (1)
化炭素を固定化する二酸化炭素固定化装置において、反
応槽内に水素と二酸化炭素を接触還元反応をして表面に
炭素を析出させるステンレス板を備えることを特徴とす
る二酸化炭素固定化装置。1. A carbon dioxide fixing apparatus for immobilizing carbon dioxide using hydrogen and carbon dioxide as reaction gas sources, wherein a stainless steel plate for performing a catalytic reduction reaction of hydrogen and carbon dioxide in a reaction tank to deposit carbon on the surface. An apparatus for immobilizing carbon dioxide, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26601399A JP2001087627A (en) | 1999-09-20 | 1999-09-20 | Carbon dioxide fixing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26601399A JP2001087627A (en) | 1999-09-20 | 1999-09-20 | Carbon dioxide fixing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001087627A true JP2001087627A (en) | 2001-04-03 |
Family
ID=17425172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26601399A Withdrawn JP2001087627A (en) | 1999-09-20 | 1999-09-20 | Carbon dioxide fixing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001087627A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003048708A (en) * | 2001-08-07 | 2003-02-21 | Shimadzu Corp | Device for manufacturing carbon |
| JP2015520717A (en) * | 2012-04-16 | 2015-07-23 | シーアストーン リミテッド ライアビリティ カンパニー | Method for using a metal catalyst in a carbon oxide catalytic converter |
| US9731970B2 (en) | 2012-04-16 | 2017-08-15 | Seerstone Llc | Methods and systems for thermal energy recovery from production of solid carbon materials by reducing carbon oxides |
| US9796591B2 (en) | 2012-04-16 | 2017-10-24 | Seerstone Llc | Methods for reducing carbon oxides with non ferrous catalysts and forming solid carbon products |
| US10106416B2 (en) | 2012-04-16 | 2018-10-23 | Seerstone Llc | Methods for treating an offgas containing carbon oxides |
| JP7381795B1 (en) | 2023-04-07 | 2023-11-16 | 株式会社タクマ | catalytic reactor |
| US11951428B2 (en) | 2016-07-28 | 2024-04-09 | Seerstone, Llc | Solid carbon products comprising compressed carbon nanotubes in a container and methods of forming same |
-
1999
- 1999-09-20 JP JP26601399A patent/JP2001087627A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003048708A (en) * | 2001-08-07 | 2003-02-21 | Shimadzu Corp | Device for manufacturing carbon |
| JP2015520717A (en) * | 2012-04-16 | 2015-07-23 | シーアストーン リミテッド ライアビリティ カンパニー | Method for using a metal catalyst in a carbon oxide catalytic converter |
| US9731970B2 (en) | 2012-04-16 | 2017-08-15 | Seerstone Llc | Methods and systems for thermal energy recovery from production of solid carbon materials by reducing carbon oxides |
| US9796591B2 (en) | 2012-04-16 | 2017-10-24 | Seerstone Llc | Methods for reducing carbon oxides with non ferrous catalysts and forming solid carbon products |
| US10106416B2 (en) | 2012-04-16 | 2018-10-23 | Seerstone Llc | Methods for treating an offgas containing carbon oxides |
| US11951428B2 (en) | 2016-07-28 | 2024-04-09 | Seerstone, Llc | Solid carbon products comprising compressed carbon nanotubes in a container and methods of forming same |
| JP7381795B1 (en) | 2023-04-07 | 2023-11-16 | 株式会社タクマ | catalytic reactor |
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