JPH1128331A - Electrochemical separation of carbon dioxide - Google Patents
Electrochemical separation of carbon dioxideInfo
- Publication number
- JPH1128331A JPH1128331A JP9201019A JP20101997A JPH1128331A JP H1128331 A JPH1128331 A JP H1128331A JP 9201019 A JP9201019 A JP 9201019A JP 20101997 A JP20101997 A JP 20101997A JP H1128331 A JPH1128331 A JP H1128331A
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- anode
- carbon dioxide
- gas
- oxygen
- 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.)
- Granted
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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- 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
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Landscapes
- Treating Waste Gases (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は工業排ガス等の低濃
度の二酸化炭素（ＣＯ2 ガス）を溶融炭酸塩を利用して
電気化学的に濃縮して分離する方法に関するものであ
る。The present invention relates to a method for electrochemically concentrating and separating low-concentration carbon dioxide (CO 2 gas) such as industrial exhaust gas using molten carbonate.
【０００２】[0002]
【従来の技術】近年、地球温暖化現象が世界的な問題と
なっているが、地球温暖化問題の対象となるのは、工業
的な燃焼排ガス（化石燃料の燃焼排ガス）の如き低濃度
の多量のＣＯ2 ガスである。2. Description of the Related Art In recent years, the global warming phenomenon has become a global problem. The problem of global warming is that low concentrations of industrial combustion exhaust gas (combustion exhaust gas of fossil fuel). A large amount of CO 2 gas.
【０００３】上記低濃度のＣＯ2 ガスを電気化学的に濃
縮して分離回収する技術の研究開発が最近進められてい
るが、現時点では具現化されていない。Research and development of a technology for electrochemically concentrating and separating and recovering the above low-concentration CO 2 gas has been advanced recently, but has not been realized at present.
【０００４】一方、類似技術として、電気化学的セルを
用いて、カソード側への空気の供給により、酸素
（Ｏ2 ）の濃縮を電気化学的に行わせるようにしたもの
が提案されている（特公平７−２０５３２号公報）。On the other hand, as a similar technique, there has been proposed a technique in which oxygen (O 2 ) is concentrated electrochemically by supplying air to the cathode side using an electrochemical cell (see, for example, Japanese Patent Application Laid-Open No. H11-157556). Japanese Patent Publication No. 7-20532).
【０００５】[0005]
【発明が解決しようとする課題】ところが、上記提案さ
れている技術の場合には、火力発電所の排ガスのような
Ｏ2 濃度の低いガスを対象としたものではないので、低
濃度のＣＯ2 ガスとＯ2ガスを含む排ガスの濃縮、分離
のために単に採用すると、カソード側の酸素が不足して
反応が維持できず、反応維持のために空気を加えるよう
にすると流量が多くなると共に供給のための動力が必要
となり、又、二酸化炭素濃度も低下して過電圧が大きく
なってしまう。[SUMMARY OF THE INVENTION However, the in the case of the proposed technique, since not intended for low O 2 concentrations, such as the exhaust gas of thermal power plant gas, a low concentration of CO 2 If it is simply adopted for concentration and separation of exhaust gas containing gas and O 2 gas, oxygen on the cathode side is insufficient and the reaction cannot be maintained. If air is added to maintain the reaction, the flow rate will increase and the supply will be increased. For this purpose, power is required, and the carbon dioxide concentration is reduced, resulting in an increase in overvoltage.
【０００６】そこで、本発明は、電気化学的セルを用い
てアノード側で排ガス中の二酸化炭素のほかに酸素も濃
縮されることに注目してなしたもので、カソードに供給
される排ガス中の酸素濃度を確保して酸欠をなくし、
又、過電圧を低減させることができるようにして、排ガ
スから純粋な二酸化炭素を連続的に取り出すことができ
るような二酸化炭素の電気化学的分離法を提供しようと
するものである。Therefore, the present invention is based on the fact that oxygen as well as carbon dioxide in exhaust gas is concentrated on the anode side using an electrochemical cell. Eliminate oxygen deficiency by securing oxygen concentration,
Another object of the present invention is to provide a method for electrochemically separating carbon dioxide so that overvoltage can be reduced and pure carbon dioxide can be continuously extracted from exhaust gas.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記課題を解
決するために、溶融炭酸塩をしみ込ませた多孔質物質製
電解質板を多孔質体製のカソードとアノードで両面から
挟んでなる濃縮機を用い、上記カソードとアノードとの
間に電位を与えた状態として、カソードに原料ガスとし
て低濃度の二酸化炭素と酸素を含むガスを供給し、該カ
ソード側で ＣＯ2 ＋1/2 Ｏ2 ＋２ｅ- →ＣＯ3 2- の電気化学反応を行わせ、生成された炭酸イオンを電解
質板を通しアノードに移動させ、該アノード側で電気化
学反応を行わせることにより、炭酸イオンから二酸化炭
素と酸素とを濃縮分離させてアノード出口ガスとして排
出させ、しかる後、該アノード出口ガス中から二酸化炭
素を分離して、残った酸素ガスを上記カソードの入口に
供給するようにさせる二酸化炭素の電気化学的分離法と
する。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a concentration method comprising sandwiching an electrolyte plate made of a porous material impregnated with a molten carbonate from both sides with a cathode and an anode made of a porous material. A gas containing low-concentration carbon dioxide and oxygen as a raw material gas is supplied to the cathode in a state where a potential is applied between the cathode and the anode by using a machine, and CO 2 +1/2 O 2 + 2e is supplied to the cathode side. - → Perform an electrochemical reaction of CO 3 2- , move the generated carbonate ions to the anode through the electrolyte plate, and perform the electrochemical reaction on the anode side. Is concentrated and separated and discharged as an anode outlet gas. Thereafter, carbon dioxide is separated from the anode outlet gas, and the diacid is supplied to supply the remaining oxygen gas to the inlet of the cathode. The method shall be an electrochemical separation method for carbonized carbon.
【０００８】又、アノード出口ガス中の二酸化炭素を分
離させるために、圧縮液化分離機を用いるようにする。In order to separate carbon dioxide in the anode outlet gas, a compression liquefaction separator is used.
【０００９】炭酸ガスの吸収、移動が電気化学的に行わ
れるため、原料ガス中の不純物が含まれることなく二酸
化炭素を濃縮することができ、分離した二酸化炭素は高
純度で付加価値の高いものとすることができる。又、二
酸化炭素を分離した後の酸素のみが気体としてカソード
の入口にリサイクルされることから、原料ガス中の酸素
濃度が確保されて酸欠がなくなり、過電圧を低減するこ
とができる。Since carbon dioxide gas is absorbed and transferred electrochemically, carbon dioxide can be concentrated without containing impurities in the raw material gas, and the separated carbon dioxide has high purity and high added value. It can be. Further, since only oxygen after separating carbon dioxide is recycled as a gas to the inlet of the cathode, the oxygen concentration in the raw material gas is ensured, oxygen deficiency is eliminated, and overvoltage can be reduced.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１１】図１は本発明の二酸化炭素の電気化学的分
離法の実施に用いる装置の一例を示す概念図であり、電
解質として溶融炭酸塩をしみ込ませた多孔質物質製の電
解質板１を、いずれも多孔質体としたカソード２とアノ
ード３の両電極で両面から挟んでなる電気化学的セルを
濃縮機４として構成し、且つ該濃縮機４の上記カソード
２とアノード３との間に、電源５を接続して、カソード
２とアノード３との間に電位差が与えられるようにす
る。FIG. 1 is a conceptual view showing an example of an apparatus used for carrying out the electrochemical separation method of carbon dioxide according to the present invention, wherein an electrolyte plate 1 made of a porous material impregnated with a molten carbonate as an electrolyte is used. An electrochemical cell, which is sandwiched from both sides by both electrodes of a cathode 2 and an anode 3 each having a porous body, is configured as a concentrator 4, and between the cathode 2 and the anode 3 of the concentrator 4, The power supply 5 is connected so that a potential difference is applied between the cathode 2 and the anode 3.
【００１２】又、上記アノード３の出口ライン６に二酸
化炭素分離機としての圧縮液化分離機７を設置し、該圧
縮液化分離機７に接続した酸素取出ライン８を、原料ガ
ス供給ラインとしてのカソード２の入口ライン９に接続
して、酸素リサイクル系を形成する。A compression liquefaction separator 7 as a carbon dioxide separator is installed at the outlet line 6 of the anode 3, and an oxygen extraction line 8 connected to the compression liquefaction separator 7 is connected to a cathode gas as a raw material gas supply line. 2 to form an oxygen recycle system.
【００１３】上記電解質板１としては、たとえば、リチ
ウムアルミネート（ＬｉＡｌＯ2 ）により構成したマト
リックスに電解質である炭酸塩を主成分とする溶融塩を
含浸させたものを用いる。炭酸塩としては、リチウム、
ナトリウム、カリウムなどからなるアルカリ金属の中か
ら選ばれた炭酸塩や、マグネシウム、カルシウム等から
なるアルカリ土類金属の中から選ばれた炭酸塩を単独又
は複数を混合した状態で使用する。As the electrolyte plate 1, for example, a matrix made of lithium aluminate (LiAlO 2 ) impregnated with a molten salt mainly composed of a carbonate as an electrolyte is used. As carbonates, lithium,
A carbonate selected from alkali metals such as sodium and potassium, and a carbonate selected from alkaline earth metals such as magnesium and calcium are used singly or in a mixture of two or more.
【００１４】又、カソード２及びアノード３としては、
高温で且つ酸化雰囲気に耐えられる導電性金属酸化物と
して、どちらも、酸化ニッケル、酸化鉄、あるいは、酸
化銅及びその他金属酸化物が単独又は混合されたもの
に、リチウムがドープされた多孔質体を用いる。Further, as the cathode 2 and the anode 3,
As a conductive metal oxide that can withstand an oxidizing atmosphere at a high temperature, a porous body in which nickel oxide, iron oxide, or a mixture of copper oxide and other metal oxides alone or mixed with lithium is used. Is used.
【００１５】更に、濃縮機４のホルダーとしては、ＳＵ
Ｓ３１０、ＳＵＳ３１６、ＳＵＳ３０４の如きステンレ
ス材、及び鉄にニッケル、クロム、チタン、モリブデ
ン、ニオブの如き物質が添加された材料を単独又は複合
して使用する。Further, as a holder for the concentrator 4, SU
A stainless steel material such as S310, SUS316 and SUS304, and a material obtained by adding a substance such as nickel, chromium, titanium, molybdenum and niobium to iron are used alone or in combination.
【００１６】濃縮機４のカソード２とアノード３の間に
電源５により電位を与えた状態において、原料ガスとし
て低濃度（約１０％）のＣＯ2 ガスと低濃度（約３％）
のＯ2 ガスを含む工業排ガスを、カソード入口ライン９
を通してカソード２に供給すると、カソード２側で、 ＣＯ2 ＋1/2 Ｏ2 ＋２ｅ- →ＣＯ3 2- の電気化学反応が行われ、炭酸イオンＣＯ3 2-が生成さ
れる。In a state in which a potential is applied between the cathode 2 and the anode 3 of the concentrator 4 by the power supply 5, low-concentration (about 10%) CO 2 gas and low-concentration (about 3%)
Industrial exhaust gas containing O 2 gas from the cathode inlet line 9
When supplied to the cathode 2 through the cathode 2, an electrochemical reaction of CO 2 +1/2 O 2 + 2e − → CO 3 2- is performed on the cathode 2 side, and carbonate ions CO 3 2- are generated.
【００１７】次に、上記生成された炭酸イオンＣＯ3 2-
は、電解質板１中を泳動してアノード３へ達し、アノー
ド３側で、 ＣＯ3 2-→ＣＯ2 ＋1/2 Ｏ2 ＋２ｅ- の電気化学反応が行われ、電子が奪われることにより、
炭酸イオンＣＯ3 2-からＣＯ2 とＯ2 が生成され、アノ
ード出口ガスとしてアノード出口ライン６に排出され
る。なお、上記炭酸イオンＣＯ3 2-から分離されたＣＯ
2 とＯ2 は各々６６％，３４％に濃縮生成されることが
実験により確認されている。Next, the carbonate ion CO 3 2-
Migrates in the electrolyte plate 1 and reaches the anode 3, where an electrochemical reaction of CO 3 2- → CO 2 +1/2 O 2 + 2e − is performed, and electrons are deprived.
CO 2 and O 2 are generated from the carbonate ions CO 3 2- and are discharged to the anode outlet line 6 as anode outlet gas. Note that CO separated from the carbonate ion CO 3 2-
It has been experimentally confirmed that 2 and O 2 are concentrated and produced to 66% and 34%, respectively.
【００１８】しかる後、上記アノード出口ガスは圧縮液
化分離機７に導かれ、ここで、圧縮液化分離機７の圧力
を上げてＣＯ2 のみを液化させ、残ったＯ2 を気体のま
ま酸素取出ライン８を通してカソード入口ライン９内に
供給し、リサイクルさせるようにする。Thereafter, the anode outlet gas is led to the compression liquefaction separator 7, where the pressure of the compression liquefaction separator 7 is increased to liquefy only CO 2 and the remaining O 2 is removed as oxygen in a gaseous state. It is supplied through line 8 into cathode inlet line 9 for recycling.
【００１９】上記において、ＣＯ2 ガスは、吸収、移動
が電気化学的に行われて選択的に反応するため、原料ガ
ス中の硫化物、塩化物、ＮＯｘ等の不純物を含むことな
く濃縮されることにより、高純度で付加価値の高いもの
として回収することができる。又、ＣＯ2 を分離した後
のＯ2 ガスがカソード２の入口にリサイクル供給される
ことから、原料ガスとしては酸素濃度を確保することが
できて酸欠をなくすことができ、これにより、反応のた
めの過電圧を小さなものとすることができる。すなわ
ち、Ｏ2 濃度が低いとカソード２側での反応のために大
きなエネルギーが必要となって過電圧が大きくなるが、
リサイクルにより原料ガス中のＯ2 濃度を高くすること
ができるので、反応のために大きなエネルギーが必要な
くなり、過電圧を小さくすることができる。したがっ
て、排ガスから純粋な二酸化炭素を連続的に取り出すこ
とができる。In the above, the CO 2 gas is absorbed and transferred electrochemically and reacts selectively, so that it is concentrated without containing impurities such as sulfide, chloride and NOx in the raw material gas. Thereby, it can be recovered as high purity and high added value. Further, since the O 2 gas after the separation of CO 2 is recycled and supplied to the inlet of the cathode 2, the oxygen concentration can be secured as the raw material gas, and the oxygen deficiency can be eliminated. The overvoltage for the above can be reduced. That is, when the O 2 concentration is low, a large amount of energy is required for the reaction on the cathode 2 side, and the overvoltage increases.
Since the O 2 concentration in the source gas can be increased by recycling, large energy is not required for the reaction, and the overvoltage can be reduced. Therefore, pure carbon dioxide can be continuously extracted from the exhaust gas.
【００２０】[0020]
【発明の効果】以上述べた如く、本発明の二酸化炭素の
電気化学的分離法によれば、溶融炭酸塩をしみ込ませた
多孔質物質製電解質板を多孔質体製のカソードとアノー
ドで両面から挟んでなる濃縮機を用い、上記カソードと
アノードとの間に電位を与えた状態として、カソードに
原料ガスとして低濃度の二酸化炭素と酸素を含むガスを
供給し、該カソード側で ＣＯ2 ＋1/2 Ｏ2 ＋２ｅ- →ＣＯ3 2- の電気化学反応を行わせ、生成された炭酸イオンを電解
質板を通しアノードに移動させ、該アノード側で電気化
学反応を行わせることにより、炭酸イオンから高濃度の
二酸化炭素と酸素とを分離生成させてアノード出口ガス
として排出させ、しかる後、該アノード出口ガス中から
二酸化炭素を分離して、残った酸素ガスを上記カソード
の入口に供給するようにし、又、上記アノード出口ガス
中の二酸化炭素を分離させるために、圧縮液化分離機を
用いるようにすることにより、ＣＯ 2 ガスを不純物の含
まない極めて高純度で付加価値の高いものとして濃縮分
離することができるので、新たな工業原料とすることが
できると共に、地球環境問題での重要な課題であるＣＯ
2 排出量の低減に貢献でき、又、ＣＯ2 分離後のＯ2を
カソードの入口にリサイクルすることによって、原料ガ
ス中の酸素濃度を確保することができるので、過電圧を
低減することができ、これにより、排ガスから純粋な二
酸化炭素を連続的に取り出すことができる、という優れ
た効果を発揮する。As described above, the carbon dioxide of the present invention
According to electrochemical separation, molten carbonate impregnated
An electrolyte plate made of porous material is connected to a cathode made of porous material and an anode.
Using a concentrator sandwiched from both sides with a cathode,
With the potential applied to the anode, the cathode
Gas containing low concentrations of carbon dioxide and oxygen as raw material gas
And supply CO on the cathode side.Two+1/2 OTwo+ 2e-→ COThree 2- And electrochemically react the generated carbonate ions.
To the anode through the plate and electrify on the anode side
Chemical reaction to remove high concentrations of carbonate ions.
Anode exit gas by separating and producing carbon dioxide and oxygen
And then from the anode outlet gas
The carbon dioxide is separated and the remaining oxygen gas is removed from the cathode
And the anode outlet gas
Compressed liquefaction separator to separate carbon dioxide in
By using it, CO 2 TwoGas containing impurities
Concentrates as extremely high purity and high added value
New industrial raw materials
And CO, which is an important issue in global environmental issues
TwoCan contribute to the reduction of emissions,TwoO after separationTwoTo
By recycling to the cathode inlet,
Overvoltage can be secured because the oxygen concentration in the
And thereby reduce the amount of pure
Excellent ability to continuously remove carbon oxide
It has the effect.
【図１】本発明の二酸化炭素の電気化学的分離法の実施
に用いる装置の一例を示す概略系統図である。FIG. 1 is a schematic system diagram showing an example of an apparatus used for carrying out the electrochemical separation method of carbon dioxide of the present invention.
１ 電解質板 ２ カソード ３ アノード ４ 濃縮機 ７ 圧縮液化分離機 DESCRIPTION OF SYMBOLS 1 Electrolyte plate 2 Cathode 3 Anode 4 Concentrator 7 Compression liquefaction separator
Claims (2)
電解質板を多孔質体製のカソードとアノードで両面から
挟んでなる濃縮機を用い、上記カソードとアノードとの
間に電位を与えた状態として、カソードに原料ガスとし
て低濃度の二酸化炭素と酸素を含むガスを供給し、該カ
ソード側で ＣＯ2 ＋1/2 Ｏ2 ＋２ｅ- →ＣＯ3 2- の電気化学反応を行わせ、生成された炭酸イオンを電解
質板を通しアノードに移動させ、該アノード側で電気化
学反応を行わせることにより、炭酸イオンから二酸化炭
素と酸素とを濃縮分離させてアノード出口ガスとして排
出させ、しかる後、該アノード出口ガス中から二酸化炭
素を分離して、残った酸素ガスを上記カソードの入口に
供給することを特徴とする二酸化炭素の電気化学的分離
法。An electric potential is applied between the cathode and the anode by using a concentrator in which an electrolyte plate made of a porous material impregnated with a molten carbonate is sandwiched from both sides by a cathode and an anode made of a porous material. as the state, supplying a gas containing a low concentration of carbon dioxide and oxygen as a source gas to the cathode, CO 2 +1/2 O 2 + 2e at the cathode side - → CO 3 to perform 2- electrochemical reaction is generated The carbonic acid ions are transferred to the anode through the electrolyte plate and subjected to an electrochemical reaction on the anode side, whereby carbon dioxide and oxygen are concentrated and separated from the carbonate ions and discharged as an anode outlet gas. An electrochemical separation method for carbon dioxide, comprising separating carbon dioxide from an anode outlet gas and supplying the remaining oxygen gas to an inlet of the cathode.
させるために、圧縮液化分離機を用いる請求項１記載の
二酸化炭素の電気化学的分離法。2. The method for electrochemical separation of carbon dioxide according to claim 1, wherein a compression liquefaction separator is used to separate carbon dioxide in the anode outlet gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20101997A JP4075103B2 (en) | 1997-07-11 | 1997-07-11 | Electrochemical separation of carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20101997A JP4075103B2 (en) | 1997-07-11 | 1997-07-11 | Electrochemical separation of carbon dioxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1128331A true JPH1128331A (en) | 1999-02-02 |
| JP4075103B2 JP4075103B2 (en) | 2008-04-16 |
Family
ID=16434126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20101997A Expired - Fee Related JP4075103B2 (en) | 1997-07-11 | 1997-07-11 | Electrochemical separation of carbon dioxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4075103B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005117137A1 (en) * | 2004-05-31 | 2005-12-08 | Nissan Motor Co., Ltd. | Photoelectrochemical cell |
| WO2010137995A1 (en) | 2009-05-28 | 2010-12-02 | Universitetet For Miljø- Og Biovitenskap | Co2 - capture in molten salts |
| WO2012164913A1 (en) | 2011-05-31 | 2012-12-06 | パナソニック株式会社 | Carbon dioxide enrichment device |
| WO2012164912A1 (en) | 2011-05-31 | 2012-12-06 | パナソニック株式会社 | Carbon dioxide enrichment device |
| WO2013089221A1 (en) | 2011-12-15 | 2013-06-20 | パナソニック株式会社 | Device for permeation of carbon dioxide and method for transport of carbon dioxide |
| JP2023525988A (en) * | 2020-05-20 | 2023-06-20 | ユニバーシティー オブ デラウェア | Electrochemically driven carbon dioxide separator |
| JP2024135922A (en) * | 2023-03-23 | 2024-10-04 | 株式会社デンソー | Electrochemical Cell |
-
1997
- 1997-07-11 JP JP20101997A patent/JP4075103B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005117137A1 (en) * | 2004-05-31 | 2005-12-08 | Nissan Motor Co., Ltd. | Photoelectrochemical cell |
| JP2005346963A (en) * | 2004-05-31 | 2005-12-15 | Nissan Motor Co Ltd | Photoelectrochemical cell |
| US8791354B2 (en) | 2004-05-31 | 2014-07-29 | Nissan Motor Co., Ltd. | Photoelectrochemical cell |
| WO2010137995A1 (en) | 2009-05-28 | 2010-12-02 | Universitetet For Miljø- Og Biovitenskap | Co2 - capture in molten salts |
| WO2012164913A1 (en) | 2011-05-31 | 2012-12-06 | パナソニック株式会社 | Carbon dioxide enrichment device |
| WO2012164912A1 (en) | 2011-05-31 | 2012-12-06 | パナソニック株式会社 | Carbon dioxide enrichment device |
| WO2013089221A1 (en) | 2011-12-15 | 2013-06-20 | パナソニック株式会社 | Device for permeation of carbon dioxide and method for transport of carbon dioxide |
| EP2792398A4 (en) * | 2011-12-15 | 2015-05-13 | Panasonic Corp | CARBON DIOXIDE PERMEATION DEVICE AND CARBON DIOXIDE TRANSPORT METHOD |
| JP2023525988A (en) * | 2020-05-20 | 2023-06-20 | ユニバーシティー オブ デラウェア | Electrochemically driven carbon dioxide separator |
| JP2024135922A (en) * | 2023-03-23 | 2024-10-04 | 株式会社デンソー | Electrochemical Cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4075103B2 (en) | 2008-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2560741B1 (en) | Electrochemical carbon monoxide production | |
| JPH03238765A (en) | How to operate a molten carbonate fuel cell | |
| US9845539B2 (en) | Treatment of hydrogen sulfide | |
| US10998566B2 (en) | Method and system for capturing high-purity CO2 in a hydrocarbon facility | |
| JP2002319428A (en) | Molten carbonate fuel cell power generation equipment | |
| US4738760A (en) | Electrochemical separation of oxygen | |
| CN119654444A (en) | Low voltage electrolyzer and method of using the same | |
| US4908113A (en) | Apparatus for the electrochemical separation of oxygen | |
| JP4075103B2 (en) | Electrochemical separation of carbon dioxide | |
| JPH11169661A (en) | Carbon dioxide capture device | |
| JP4103510B2 (en) | Oxygen and carbon dioxide purification and high concentration treatment method | |
| AU2011217490B2 (en) | Method and system for purification of gas streams for solid oxide cells | |
| Wu et al. | Design and evaluation of closed-loop carbon recycling strategies based on co-electrolysis for on-site reusing CO2 in the blast furnace gas | |
| JP4100479B2 (en) | Carbon dioxide decomposition method | |
| US4859296A (en) | Electrochemical separation of oxygen | |
| US20240360568A1 (en) | Carbon monoxide production device, carbon dioxide electrolysis device, and carbon dioxide electrolysis method | |
| JP2517799B2 (en) | Electrochemical exhaust gas treatment system | |
| JP4385424B2 (en) | Carbon dioxide concentration method and apparatus | |
| CN118120081A (en) | Fuel cell system | |
| CN119156467A (en) | Electrolytic apparatus for producing iron with improved gas permeable anode plate | |
| JP2023085880A (en) | Carbon dioxide treatment device | |
| JPH11191427A (en) | Power recovery method from exhaust gas | |
| JPH1133340A (en) | Carbon dioxide enrichment method | |
| KR20130093401A (en) | Heat exchange type catalytic oxidizer and high concentration dioxide recycle apparatus using the same | |
| JPH0828233B2 (en) | Power plant using molten carbonate fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040604 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20080108 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20080121 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110208 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110208 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120208 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130208 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130208 Year of fee payment: 5 |
|
| LAPS | Cancellation because of no payment of annual fees |