JPH0142938Y2 - - Google Patents
Info
- Publication number
- JPH0142938Y2 JPH0142938Y2 JP1983017060U JP1706083U JPH0142938Y2 JP H0142938 Y2 JPH0142938 Y2 JP H0142938Y2 JP 1983017060 U JP1983017060 U JP 1983017060U JP 1706083 U JP1706083 U JP 1706083U JP H0142938 Y2 JPH0142938 Y2 JP H0142938Y2
- Authority
- JP
- Japan
- Prior art keywords
- carbon dioxide
- air
- air electrode
- absorption device
- dioxide absorption
- 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
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 68
- 239000001569 carbon dioxide Substances 0.000 claims description 34
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 34
- 238000010521 absorption reaction Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims description 3
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 230000005587 bubbling Effects 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- 239000003792 electrolyte Substances 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 5
- 210000004027 cell Anatomy 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Description
【考案の詳細な説明】
本考案は、炭酸ガス吸収装置を付設させる空気
極をそなえる電気化学装置、たとえば燃料電池、
食塩電解槽、あるいは電気化学的酸素濃縮装置の
改良に係る。[Detailed description of the invention] The present invention is an electrochemical device equipped with an air electrode to which a carbon dioxide absorption device is attached, such as a fuel cell,
Concerning improvements to salt electrolyzers or electrochemical oxygen concentrators.
空気極をカソードとし、水酸化アルカリの水溶
液を電解液とする電気化学装置を作動させると、
空気極に供給される空気中の炭酸ガスが水酸化ア
ルカリと反応し、炭酸アルカリが生成することは
よく知られている。この炭酸アルカリは電解液中
で生成すると同時に多孔性である空気極の細孔中
でも生成する。電解液中で生成する炭酸アルカリ
は電解液の電導度を低下させたり、電解生成物の
純度を低下させたりする。 When an electrochemical device with an air electrode as a cathode and an aqueous alkali hydroxide solution as an electrolyte is operated,
It is well known that carbon dioxide gas in the air supplied to the air electrode reacts with alkali hydroxide to produce alkali carbonate. This alkali carbonate is generated in the electrolyte and also in the pores of the porous air electrode. Alkali carbonate generated in the electrolyte reduces the conductivity of the electrolyte and the purity of the electrolyzed product.
また空気極の細孔中で生成する炭酸アルカリ
は、空気の拡散を阻害し、空気極の性能を劣化さ
せる。 Furthermore, alkali carbonate generated in the pores of the air electrode inhibits air diffusion and deteriorates the performance of the air electrode.
このような理由から、空気極に供給すべき空気
から予め炭酸ガスを除去する必要がある。 For these reasons, it is necessary to remove carbon dioxide gas from the air to be supplied to the air electrode in advance.
空気から炭酸ガスを除去するためには、一般に
一定の容器の中に、水酸化カリウム、水酸化ナト
リウム、炭酸ソーダの水溶液、あるいはモノエタ
ノールアミンなどの炭酸ガスを吸収する能力をも
つている液体を入れておき、空気をこの液体の中
にバブリングさせるという方法が有効である。 To remove carbon dioxide from the air, a liquid that has the ability to absorb carbon dioxide, such as an aqueous solution of potassium hydroxide, sodium hydroxide, or soda carbonate, or monoethanolamine, is generally placed in a container. An effective method is to bubble air into this liquid.
空気は一般にポンプで加圧されて空気極に供給
される。ところが、停電したり、ポンプの故障が
起つて、空気の供給が停止すると、炭酸ガス吸収
装置の空間部から空気極に至る系内の圧力の方が
ポンプから炭酸ガス供給装置に至る系内のそれよ
り高くなるため、炭酸ガスを吸収するための液体
が、ポンプ側に逆流するという難点があつた。 Air is generally supplied to the cathode under pressure with a pump. However, if the air supply stops due to a power outage or a pump failure, the pressure in the system from the space of the carbon dioxide absorption device to the air electrode will be higher than the pressure in the system from the pump to the carbon dioxide supply device. Since the temperature was higher than that, there was a problem in that the liquid used to absorb carbon dioxide gas would flow back to the pump side.
本考案はこの難点を改善しようとするものであ
る。すなわち本考案は炭酸ガス吸収装置の空間部
あるいは炭酸ガス吸収装置と空気極とを結ぶ系内
の一部にリリーフ弁あるいは電磁弁を装着してお
き、空気の供給が停止したとき炭酸ガス吸収装置
の空間部から空気極に至る系内の空気をリリーフ
弁あるいは電磁弁を通して放出させることにより
炭酸ガス吸収装置と空気極を結ぶ系内の圧力を炭
酸ガス吸収液の逆流が起らないところまで低下さ
せるものである。 The present invention attempts to improve this difficulty. In other words, the present invention installs a relief valve or solenoid valve in the space of the carbon dioxide absorption device or in a part of the system connecting the carbon dioxide absorption device and the air electrode, so that when the air supply stops, the carbon dioxide absorption device By releasing the air in the system from the space to the air electrode through a relief valve or solenoid valve, the pressure in the system connecting the carbon dioxide absorption device and the air electrode is reduced to a point where backflow of the carbon dioxide absorption liquid does not occur. It is something that makes you
以下本考案の一実施例について詳述する。 An embodiment of the present invention will be described in detail below.
第１図は、本考案の一実施例にかゝる炭酸ガス
吸収装置を含む燃料電池の断面構造を示す。 FIG. 1 shows a cross-sectional structure of a fuel cell including a carbon dioxide absorption device according to an embodiment of the present invention.
１は水素−空気燃料電池本体であり、正極とし
ての空気極２、負極としての水素極３および30％
の水酸化カリウムからなる電解液４から構成され
る。 1 is a hydrogen-air fuel cell main body, with an air electrode 2 as a positive electrode, a hydrogen electrode 3 as a negative electrode, and 30%
The electrolyte 4 consists of potassium hydroxide.
空気はポンプ５で加圧され、炭酸ガス吸収装置
６を経て空気極２に供給される。 Air is pressurized by a pump 5 and supplied to the air electrode 2 via a carbon dioxide absorption device 6.
また空気が炭酸ガス吸収装置６内に入つている
40％の水酸化カリウム水溶液からなる炭酸ガス吸
収液７をバブリングする間に空気中の炭酸ガスが
除去される。 Also, air is entering the carbon dioxide absorption device 6.
Carbon dioxide in the air is removed while bubbling the carbon dioxide absorption liquid 7 made of a 40% potassium hydroxide aqueous solution.
水素−空気燃料電池が正常に作動されていると
きには、空気極空気室８と炭酸ガス吸収装置空間
部９とを結ぶ系内は450mm水柱の圧力に保たれる。
ところが、ポンプ５の故障が起り、空気の供給が
停止すると、電磁弁１０が開き、空気極空気室８
と炭酸ガス吸収装置空間部９とを結ぶ系内の圧力
は大気圧まで低下するために、炭酸ガス吸収液７
がポンプ５側に逆流することは阻止される。 When the hydrogen-air fuel cell is operating normally, the pressure within the system connecting the cathode air chamber 8 and the carbon dioxide absorber space 9 is maintained at a pressure of 450 mm of water column.
However, when a failure occurs in the pump 5 and the air supply stops, the solenoid valve 10 opens and the cathode air chamber 8
Since the pressure in the system connecting the carbon dioxide absorbing liquid 7 and the carbon dioxide absorbing device space 9 decreases to atmospheric pressure, the carbon dioxide absorbing liquid 7
is prevented from flowing back to the pump 5 side.
以上詳述せる如く、本考案は簡便な方法で炭酸
ガス吸収液の逆流を阻止し得る空気極をそなえる
電気化学装置を提供するもので、その実用的価値
極めて大である。 As detailed above, the present invention provides an electrochemical device equipped with an air electrode that can prevent the backflow of a carbon dioxide gas absorption liquid in a simple manner, and has extremely great practical value.
第１図は本考案の一実施例にかゝる炭酸ガス吸
収装置を含む燃料電池の断面構造を示す。
１……水素−空気燃料電池本体、２……空気
極、３……水素極、４……電解液、５……ポン
プ、６……炭酸ガス吸収装置、７……炭酸ガス吸
収液、８……空気極空気室、９……炭酸ガス吸収
装置空間部、１０……電磁弁。
FIG. 1 shows a cross-sectional structure of a fuel cell including a carbon dioxide absorption device according to an embodiment of the present invention. 1... Hydrogen-air fuel cell body, 2... Air electrode, 3... Hydrogen electrode, 4... Electrolyte, 5... Pump, 6... Carbon dioxide absorption device, 7... Carbon dioxide absorption liquid, 8 . . . Air electrode air chamber, 9 . . . Carbon dioxide absorption device space, 10 . . . Solenoid valve.
Claims (1)
ルアミンの如き炭酸ガスを吸収する能力を有する
液体を収納せる容器からなり、空気を前記炭酸ガ
スを吸収する能力を有する液体中にバブリングせ
しめることによつて炭酸ガスを吸収せしめるよう
にした炭酸ガス吸収装置を介して、空気を空気極
をそなえる電気化学装置、たとえば燃料電池、食
塩電解槽もしくは電気化学的酸素濃縮装置に供給
するようにしてなる空気極をそなえる電気化学装
置において、炭酸ガス吸収装置もしくは炭酸ガス
吸収装置と空気極をそなえる電気化学装置とを結
ぶ系路の一部に、リリーフ弁もしくは電磁弁を装
着してなることを特徴とする空気極をそなえる電
気化学装置。 It consists of a container containing a liquid capable of absorbing carbon dioxide gas, such as an aqueous solution of alkali hydroxide or monoethanolamine, and carbon dioxide gas is absorbed by bubbling air into the liquid capable of absorbing carbon dioxide gas. An electrochemical device with an air electrode, in which air is supplied to an electrochemical device with an air electrode, such as a fuel cell, a salt electrolyzer or an electrochemical oxygen concentrator, through a carbon dioxide absorption device adapted to absorb carbon dioxide. An electric device equipped with an air electrode, characterized in that a relief valve or a solenoid valve is installed in a part of the system connecting the carbon dioxide absorption device or the carbon dioxide absorption device and the electrochemical device equipped with an air electrode. chemical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983017060U JPS59123964U (en) | 1983-02-07 | 1983-02-07 | Electrochemical device with air electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983017060U JPS59123964U (en) | 1983-02-07 | 1983-02-07 | Electrochemical device with air electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59123964U JPS59123964U (en) | 1984-08-21 |
| JPH0142938Y2 true JPH0142938Y2 (en) | 1989-12-14 |
Family
ID=30148303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983017060U Granted JPS59123964U (en) | 1983-02-07 | 1983-02-07 | Electrochemical device with air electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59123964U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5392158B2 (en) * | 2010-03-19 | 2014-01-22 | 株式会社Ｉｈｉ | Perchlorate production apparatus and production method |
-
1983
- 1983-02-07 JP JP1983017060U patent/JPS59123964U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59123964U (en) | 1984-08-21 |
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