JPS61216714A - Dehumidification - Google Patents
DehumidificationInfo
- Publication number
- JPS61216714A JPS61216714A JP60057262A JP5726285A JPS61216714A JP S61216714 A JPS61216714 A JP S61216714A JP 60057262 A JP60057262 A JP 60057262A JP 5726285 A JP5726285 A JP 5726285A JP S61216714 A JPS61216714 A JP S61216714A
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- anode
- air
- water
- exchange membrane
- 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.)
- Pending
Links
Landscapes
- Drying Of Gases (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は除湿方法に関するものである。さらに詳しくは
、本発明は電気化学的な手法を用いた除湿方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dehumidification method. More specifically, the present invention relates to a dehumidification method using an electrochemical method.
従来の技術
従来の除湿方法を大別すると、温度を下げて雰囲気中の
水蒸気を凝縮さぼる凝縮法とシリカゲルなどの乾燥剤に
水蒸気を吸着させる吸着法とに分類することができる。BACKGROUND OF THE INVENTION Conventional dehumidification methods can be roughly divided into condensation methods in which water vapor in the atmosphere is condensed by lowering the temperature, and adsorption methods in which water vapor is adsorbed by a desiccant such as silica gel.
発明が解決しようとする問題点
凝縮法は温度を下げることが適切でない用途には不向き
であるし、吸着法は再生処理が必要であるという点に問
題がある。Problems to be Solved by the Invention The condensation method is unsuitable for applications where it is not appropriate to lower the temperature, and the adsorption method has a problem in that it requires regeneration treatment.
問題点を解決するための手段
本発明は陽イオン交換膜を固体電解質とする電気化学セ
ルの陰極もしくは陰極と陽極の双方に除湿の対象となる
空気を供給することによって、供給した空気中の水蒸気
を前記電気化学セルの陽イオン交換膜に吸収せしめると
ともに、陰極と陽極との間に′、水素発生が起こらない
電圧範囲で、直流電圧を印加し、陰極で酸素の゛電解還
元反応を起こさせ、陽極で酸素発生反応を起こさせると
ともに、陰極での電極反応によって生成する水および電
気泳動によって陽極側から陰極側に移動してくる水を捕
集することによって、従来の除湿方法の問題点を解決す
るものである。Means for Solving the Problems The present invention provides air to be dehumidified by supplying air to be dehumidified to the cathode or both the cathode and anode of an electrochemical cell using a cation exchange membrane as a solid electrolyte. is absorbed into the cation exchange membrane of the electrochemical cell, and a direct current voltage is applied between the cathode and the anode within a voltage range in which hydrogen generation does not occur, causing an electrolytic reduction reaction of oxygen at the cathode. By causing an oxygen generation reaction at the anode and collecting water generated by the electrode reaction at the cathode and water that moves from the anode to the cathode by electrophoresis, we have solved the problems of conventional dehumidification methods. It is something to be solved.
作 用
陽イオン交換膜の片面に酸素の電解還元反応に有効な触
媒電極からなる陰極を、他面に酸素の発生に有効な触媒
電極からなる陽極をそれぞれ一体に接合した接合体の陰
極あるいは陰極と陽極の双方に除湿しようとする空気を
接触させると、空気中の水蒸気が陽イオン交換膜に吸収
される。陽イオン交換膜に水分が吸収されると、この膜
は固体電解質として機能するようになる。つまり、上述
の接合体は電気化学セルとなる。この電気化学セルの陰
極と陽極との間に直流電圧を印加すると、ある一定の電
圧範囲では、陰極で
０２ ＋４１−１” ＋４ｅ −＝２８２０ − （
１）なる反応によって水が生成し、陽極で
２Ｈ２０−０２＋４８”＋４８− −
（２）なる反応によって酸素が生成する。Function: A cathode or cathode of an assembly in which a cathode consisting of a catalytic electrode effective for the electrolytic reduction reaction of oxygen is bonded on one side of a cation exchange membrane, and an anode consisting of a catalytic electrode effective for generating oxygen on the other side. When the air to be dehumidified is brought into contact with both the anode and the anode, water vapor in the air is absorbed by the cation exchange membrane. When water is absorbed into the cation exchange membrane, the membrane begins to function as a solid electrolyte. In other words, the above-mentioned conjugate becomes an electrochemical cell. When a DC voltage is applied between the cathode and anode of this electrochemical cell, in a certain voltage range, the voltage at the cathode is 02 +41-1" +4e -=2820 - (
1) Water is produced by the reaction 2H20-02+48"+48- - at the anode.
(2) Oxygen is generated by the reaction.
陰極で生成する水は、水蒸気の形ではなく、液体の形で
、陰極の背面（陽イオン交換膜と反対の面）に漏出して
くる。The water produced at the cathode leaks out to the back of the cathode (the side opposite the cation exchange membrane) in liquid form, not water vapor.
一方、上述の電気化学反応において、水素イオン（Ｈ＋
）は、陽極側から陰極側に移動するが、その際、電気泳
動によって陽イオン交換膜中の水が陰極側に移動する。On the other hand, in the above electrochemical reaction, hydrogen ions (H+
) moves from the anode side to the cathode side, but at that time, water in the cation exchange membrane moves to the cathode side due to electrophoresis.
この電気泳動によって移動する水も、液体の形で、陰極
の背面に漏出してくる。The water that moves due to this electrophoresis also leaks out to the back of the cathode in liquid form.
したがって、陰極の背面に漏出してくる水を捕集すれば
、空気中の水蒸気が液体の水の状態になり、結果的には
空気の除湿が行われることになる。Therefore, if the water leaking to the back surface of the cathode is collected, the water vapor in the air becomes liquid water, and as a result, the air is dehumidified.
（１）式によって生成する水の量は、３．１１ Ｘ１Ｇ
＝＊ｏｌ ／Ａｍ１ｎである。これに対して、電気泳動
によって陰極の背面から漏出する水の愚は、用いる陽イ
オン交換膜の特性によって異なるが、例えばデュポン社
（Ｄｕ Ｐｏｎｔ ） ｆｉＩのパーフルオロカーボン
スルフオン酸樹脂膜であるＮＡＦＩＯＮｌｌｌ（登録商
標）゛の場合には、２．４７ ｘｌｏ−Ｊｍｏｌ／ Ａ
Ｉｉｎとなり、上述の電極反応によって生成する水の
黴の約７倍である。The amount of water produced by equation (1) is 3.11 X1G
=*ol/Am1n. On the other hand, the amount of water leaking from the back surface of the cathode during electrophoresis varies depending on the characteristics of the cation exchange membrane used, but for example, NAFIONll (Du Pont fiI's perfluorocarbon sulfonic acid resin membrane) registered trademark), 2.47 xlo-Jmol/A
Iin, which is about 7 times as much as the water mold produced by the electrode reaction mentioned above.
上述の電気化学セルにおいて、印加電圧が高ずざる場合
には、陰極で、（１）式の代りに２８” ＋２ｅ −−
８２・・・ （３）なる反応によって、水素が発生する
ので避けなければならない。In the above electrochemical cell, if the applied voltage is not high, 28" +2e -- instead of formula (1) at the cathode.
82...(3) Since hydrogen is generated by the reaction, it must be avoided.
陰極としては、白金族金属もしくは白金族金、属を担持
したカーボンとフッ素、樹脂結着剤との混合物、もしく
はこれらの混合物に陽イオン交換樹脂を混・合したちの
を陽イオン交換膜にホットプレスするのがよい。As a cathode, a platinum group metal or a mixture of carbon supporting a platinum group metal or metal, fluorine, a resin binder, or a mixture of these and a cation exchange resin can be used as a cation exchange membrane. Best to hot press.
陽極としては、白金族金属を陽イオン交換膜に無電解メ
ッキ法によって接合するか、白金族金属粉末とフッ素樹
脂結着剤との混合物を、ホットプレス法によって接合す
るのがよい。As the anode, it is preferable to bond a platinum group metal to a cation exchange membrane by electroless plating, or to bond a mixture of platinum group metal powder and a fluororesin binder by hot pressing.
実施例
図は本発明の一実施例にかかる除湿システムを示す。パ
ーフルオロカーボンスルフオン酸樹脂からなる陽イオン
交換膜１の片面に陰［１２、他面に陽極３がそれぞれ一
体に接合されている。陰極２は白金触媒を担持したカー
ボン粉末とポリ４フツ化エチレンの水懸濁液とパーフル
オロカーボンスルフオン酸樹脂の低級脂肪族アルコール
と水との混合溶媒溶液との混合物を陽イオン交換膜１に
ホットプレス法によって５接合することにより構成され
ている。陽極３は白金からなり、陽イオン交換膜１に無
電解メッキ法によって接合されている。Embodiment The figure shows a dehumidification system according to an embodiment of the present invention. A cation exchange membrane 1 made of perfluorocarbon sulfonic acid resin is integrally joined with a negative electrode 12 on one side and an anode 3 on the other side. For the cathode 2, a mixture of carbon powder supporting a platinum catalyst, an aqueous suspension of polytetrafluoroethylene, and a mixed solvent solution of perfluorocarbon sulfonic acid resin of lower aliphatic alcohol and water is applied to the cation exchange membrane 1. It is constructed by joining five pieces using a hot press method. The anode 3 is made of platinum and is bonded to the cation exchange membrane 1 by electroless plating.
陰極２の背面には白金メッキを施したエキスパンデッド
チタンから６なる陰極集電体４が、陽極３の背面には白
金メッキを施したエキスパンデッドチタンからなる陽・
極東電体５がそれぞれ配設され、さらに陰極集電体４の
背面にはチタン製の陰極端子板６が、陽極集電体５の背
面にはチタン製の陽極端子板７がそれぞれ配設されてい
る。これらの各構成要素は枠体８によって固定されてい
る。またポンプ９によって、除湿の対客となる空気が陰
極集電体４の間隙部に形成される陰極室１０および陽極
集電体５の間隙部に形成される陽極室１１に供給される
ようになっている。陰極室１０および陽極室１１に供給
された空気中の水蒸気は陽イオン交換膜１に吸収される
。このような状態で、陰極端子板６と陽極端子板７との
間に１．４ｖの直流電圧を印加すると、陰極２で酸素の
電解還元反応が起こり、陽極３で酸素の発生反応が起こ
るとともに、陰極２の背面から水が漏出してくる。この
漏出してくる水は水溜め１２に溜められる。また陰極２
で脱酸素された残余ガスは、水溜め１２に設けられた残
余ガス排出口１３から、空気中に放出される。また陽極
３から発生する酸素は、余剰空気とともに酸素排出口１
４から、空気中に放出される。On the back of the cathode 2 is a cathode current collector 4 made of expanded titanium plated with platinum, and on the back of the anode 3 is a positive current collector 4 made of expanded titanium plated with platinum.
A Far East electrical body 5 is provided, and a cathode terminal plate 6 made of titanium is provided on the back of the cathode current collector 4, and an anode terminal plate 7 made of titanium is provided on the back of the anode current collector 5. ing. Each of these components is fixed by a frame 8. In addition, the pump 9 supplies air for dehumidification to the cathode chamber 10 formed in the gap between the cathode current collectors 4 and the anode chamber 11 formed in the gap between the anode current collectors 5. It has become. Water vapor in the air supplied to the cathode chamber 10 and the anode chamber 11 is absorbed by the cation exchange membrane 1. In this state, when a DC voltage of 1.4 V is applied between the cathode terminal plate 6 and the anode terminal plate 7, an electrolytic reduction reaction of oxygen occurs at the cathode 2, an oxygen generation reaction occurs at the anode 3, and , water leaks out from the back of the cathode 2. This leaked water is collected in a water reservoir 12. Also cathode 2
The residual gas deoxidized is released into the air from a residual gas outlet 13 provided in the water reservoir 12. In addition, oxygen generated from the anode 3 is transferred to the oxygen outlet 1 along with excess air.
4, it is released into the air.
かくして、空気中の水蒸気が凝縮されて、水溜め１２に
液体の状態で捕集される。Thus, water vapor in the air is condensed and collected in the water reservoir 12 in a liquid state.
発明の効果
本発明は、常温で空気中の水蒸気を凝縮することができ
、しかも再生処理を全く必要とせず、しかち自動的に除
湿できる電気化学的除湿方法であり、その工業的価値極
めて大である。Effects of the Invention The present invention is an electrochemical dehumidification method that can condense water vapor in the air at room temperature, does not require any regeneration treatment, and can dehumidify automatically, and its industrial value is extremely high. It is.
図は本発明の一実施例にかかる除湿システムを示す概略
構成図である。
１・・・悶イオン交換膜、２・・・陰極、３・・・陽極
、９・・・ポンプ、１２・・・水溜め
１、・・・ 得イオンヌ渠哄
２・・・ 潰 童
３・・・ 陽 楊
ｑ ・・・ 六？ ン プ
１２・・・水潜めThe figure is a schematic configuration diagram showing a dehumidification system according to an embodiment of the present invention. 1... ion exchange membrane, 2... cathode, 3... anode, 9... pump, 12... water reservoir 1,... profit ion drain 2... crushing child 3. ... Yang Yang... Six? 12... Submerge in water
Claims (1)
、他面に酸素の発生に有効な陽極をそれぞれ一体に接合
せしめてなる接合体の陰極もしくは陰極と陽極の双方に
、除湿の対象となる空気を供給するとともに、陰極と陽
極との間に、陰極からの水素発生が起こらない範囲の直
流電圧を印加し、陰極における電極反応によって生成す
る水および電気泳動によって陽極側から陰極側に移動す
る水を捕集してなることを特徴とする除湿方法。A cathode, or both the cathode and the anode, of a bonded body made by integrally bonding a cathode effective for electrolytic reduction of oxygen on one side of a cation exchange membrane and an anode effective for generating oxygen on the other side, can be dehumidified. At the same time, a DC voltage within a range that does not cause hydrogen generation from the cathode is applied between the cathode and anode, and water generated by the electrode reaction at the cathode and electrophoresis move from the anode side to the cathode side. A dehumidification method characterized by collecting moving water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60057262A JPS61216714A (en) | 1985-03-20 | 1985-03-20 | Dehumidification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60057262A JPS61216714A (en) | 1985-03-20 | 1985-03-20 | Dehumidification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61216714A true JPS61216714A (en) | 1986-09-26 |
Family
ID=13050608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60057262A Pending JPS61216714A (en) | 1985-03-20 | 1985-03-20 | Dehumidification |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61216714A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988008742A1 (en) * | 1987-05-08 | 1988-11-17 | Mitsubishi Denki Kabushiki Kaisha | Moisture remover |
| US5012360A (en) * | 1988-01-19 | 1991-04-30 | Mitsubishi Denki Kabushiki Kaisha | Dehumidifier for magnetic disc apparatus |
| US5096549A (en) * | 1987-03-08 | 1992-03-17 | Mitsubishi Denki Kabushiki Kaisha | Dehumidifier and method of using |
| JPH067627A (en) * | 1991-08-20 | 1994-01-18 | Mitsubishi Electric Corp | Humidity controller |
| DE19621752A1 (en) * | 1995-06-30 | 1997-01-02 | Mitsubishi Electric Corp | Electrolytic cell having solid polymer electrolyte de-humidifiers e.g. to prevent condensation |
| DE19704160A1 (en) * | 1996-05-15 | 1997-11-20 | Mitsubishi Electric Corp | Electrolytic module useful for air dehumidifier |
| WO2004062016A1 (en) * | 2002-12-26 | 2004-07-22 | Sony Corporation | Hydrogen gas humidity controller, fuel cell, hydrogen gas humidity controlling method, and humidity controlling method of fuel cell |
| JP2008136964A (en) * | 2006-12-04 | 2008-06-19 | Casio Comput Co Ltd | Gas-liquid separator and generating set |
| JP2009061375A (en) * | 2007-09-05 | 2009-03-26 | Casio Comput Co Ltd | Gas-liquid separator, generating set, and electronics |
-
1985
- 1985-03-20 JP JP60057262A patent/JPS61216714A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096549A (en) * | 1987-03-08 | 1992-03-17 | Mitsubishi Denki Kabushiki Kaisha | Dehumidifier and method of using |
| WO1988008742A1 (en) * | 1987-05-08 | 1988-11-17 | Mitsubishi Denki Kabushiki Kaisha | Moisture remover |
| US5012360A (en) * | 1988-01-19 | 1991-04-30 | Mitsubishi Denki Kabushiki Kaisha | Dehumidifier for magnetic disc apparatus |
| JPH067627A (en) * | 1991-08-20 | 1994-01-18 | Mitsubishi Electric Corp | Humidity controller |
| DE19621752A1 (en) * | 1995-06-30 | 1997-01-02 | Mitsubishi Electric Corp | Electrolytic cell having solid polymer electrolyte de-humidifiers e.g. to prevent condensation |
| DE19704160A1 (en) * | 1996-05-15 | 1997-11-20 | Mitsubishi Electric Corp | Electrolytic module useful for air dehumidifier |
| FR2748672A1 (en) * | 1996-05-15 | 1997-11-21 | Mitsubishi Electric Corp | HIGH SOLID POLYMER ELECTROLYTIC MODULE AND METHOD OF MANUFACTURING THE SAME |
| US5736017A (en) * | 1996-05-15 | 1998-04-07 | Mitsubishi Denki Kabushiki Kaisha | Solid high polymer electrolytic module and method of manufacturing the same |
| WO2004062016A1 (en) * | 2002-12-26 | 2004-07-22 | Sony Corporation | Hydrogen gas humidity controller, fuel cell, hydrogen gas humidity controlling method, and humidity controlling method of fuel cell |
| JP2008136964A (en) * | 2006-12-04 | 2008-06-19 | Casio Comput Co Ltd | Gas-liquid separator and generating set |
| JP2009061375A (en) * | 2007-09-05 | 2009-03-26 | Casio Comput Co Ltd | Gas-liquid separator, generating set, and electronics |
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