CN1035488C - Electrochemical bipolar oxygen generation method and device - Google Patents
Electrochemical bipolar oxygen generation method and device Download PDFInfo
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- CN1035488C CN1035488C CN92112233A CN92112233A CN1035488C CN 1035488 C CN1035488 C CN 1035488C CN 92112233 A CN92112233 A CN 92112233A CN 92112233 A CN92112233 A CN 92112233A CN 1035488 C CN1035488 C CN 1035488C
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- 239000001301 oxygen Substances 0.000 title claims abstract description 67
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 67
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 47
- 239000003792 electrolyte Substances 0.000 claims abstract description 37
- 230000003197 catalytic effect Effects 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000005406 washing Methods 0.000 claims abstract description 5
- 210000005056 cell body Anatomy 0.000 claims description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical group [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000008151 electrolyte solution Substances 0.000 claims description 7
- -1 hydrogen peroxide ions Chemical class 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N hydrogen peroxide Substances OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 claims description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 235000011089 carbon dioxide Nutrition 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 2
- 240000005373 Panax quinquefolius Species 0.000 claims description 2
- 238000003421 catalytic decomposition reaction Methods 0.000 claims description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 229910000510 noble metal Inorganic materials 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000012267 brine Substances 0.000 description 5
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 238000003411 electrode reaction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- YMHOBZXQZVXHBM-UHFFFAOYSA-N 2,5-dimethoxy-4-bromophenethylamine Chemical compound COC1=CC(CCN)=C(OC)C=C1Br YMHOBZXQZVXHBM-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 241000545067 Venus Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010349 cathodic reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000009372 pisciculture Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- 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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to a method and a device for electrochemical bipolar oxygen generation, which mainly comprises an electrolytic bath body (14) consisting of an air cathode (2), a metal catalytic net (3) and a metal anode (4), a direct current rectifying device (13), an electrolyte container and gas-liquid separator (15), a washing bottle (16), a dryer (17) and a tail gas observation bottle (18).
Description
The present invention relates to prepare the method and the device of method and device, the especially bipolar oxygen-making electrochemical of oxygen, this method and apparatus is applicable to that electrochemistry negative electrode and anode prepare the occasion of oxygen simultaneously.
Before the present invention makes, the approach of preparation oxygen roughly has three classes, and the first kind is the oxygen of industrial use, adopts the preparation of empty point-score and air separation facility usually, this method is raw material with the air, through means such as pressurization, coolings, from air, isolate oxygen, irritate oxygen with steel cylinder then, because it is big that this legal system is equipped with the equipment of oxygen, the interior pressure of irritating the oxygen steel cylinder is high, transportation inconvenience in addition, thus limited the widespread use with the oxygen place such as highlands and backwoodsman hospital and family greatly; Second class is Chinese patent CN86104506A, the method of the usefulness peroxide breakdown that CN2061058uCN1060635A provides prepares oxygen, it is provided convenience with oxygen during for the critical sick and wounded's first aid of hospital, and carry and use also more convenient, but because this method needs to consume some kinds of valuable chemical in the preparation oxygen process, system oxygen cost costliness, and the amount that at every turn prepares oxygen is less, time is short, can not prepare oxygen continuously, needing when first aid is provided, large-scale promotion application will be restricted, the 3rd class be Chinese patent CN2050429u provide prepare the method and the oxygen generator device of oxygen with brine electrolysis, this oxygen generator is by the Venus negative electrode, anode, barrier film and cell body are formed, after the energising, cathode hydrogen evolution, anode produces oxygen, for avoiding hydrogen and oxygen mix, cloudy, separate with barrier film between anode, though this method system oxygen is convenient, price is lower, easy to use, but because cathode hydrogen evolution, need to use barrier film and anode to separate, thereby both increased the complicacy and the manufacturing cost of electrolyzer, wasted the energy consumption that produces by membrane resistance again, the more important thing is hydrogen that negative electrode separates out indoor reach certain concentration range after, in the oxygen use, meet fire and easily blast, have danger, thereby difficulty is given enforcement in actual applications.
At the deficiencies in the prior art, task of the present invention provide a kind of in electrochemical system negative electrode and anode can prepare rapidly, continuously simultaneously oxygen, simple and reasonable, energy consumption is low, the method and the device of the bipolar oxygen-making electrochemical of cheap, easy and simple to handle, safe in utilization, applied range.
The method of bipolar oxygen-making electrochemical is in the bipolar oxygen-making electrochemical device, with the air is raw material, under the alkaline electrolyte effect, after the energising, on the outer Catalytic Layer of air cathode (2) surface through gas, liquid, Gu three contact, at first airborne oxygen reduction is become hydrogen peroxide ions and hydroxide ion, the hydrogen peroxide ions of Sheng Chenging contacts with metal catalytic net (3) and resolves into oxygen and hydroxide ion then, simultaneously, air cathode (2) reduction and metal catalytic net (3) two hydroxide ions that catalytic decomposition generated are oxidized to the oxygen G﹠W on metal anode (4); Applied Electrochemistry reaction of the present invention is carried out bipolar oxygen-making with chemistry (catalysis) decomposition reaction principle of combining, and its reaction formula is as follows: 1 cathodic reaction is
1°=-0.08 volt of 2 chemistry (catalysis) decomposition reaction is
3 anodic reactions are
2°=+ 0.40 volt
(e in the electrode reaction formula represents to participate in the electronics of electrode reaction, ° of expression standard potential) reach oxygen that metal anode (4) generated and electrolytic solution oxygen and the electrolyte outlet (10) by electrolyzer body (14) top between oxygenerator air cathode (2) and the metal catalytic net (3) and enter the electrolyte container gas-liquid separator (15) of holding concurrently, wherein the oxygen after separating directly uses by washing bottle (16) and moisture eliminator (17) or stores, electrolytic solution returns electrolyzer body (14) again through the electrolyte container gas-liquid separator (15) of holding concurrently, electrolytic solution constitutes self-circulation system, tail gas is observed bottle (18) through tail gas and is entered atmosphere, thereby has reached the purpose of bipolar oxygen-making electrochemical.
Alkaline electrolyte (6) can be potassium hydroxide aqueous solution or aqueous sodium hydroxide solution, and its concentration range is 1-mol.L
-1
The required air optimal selection of bipolar oxygen-making electrochemical is that air is removed impurity such as dust and carbonic acid gas through soda-lime moisture eliminator (12).
The device of bipolar oxygen-making electrochemical method is in bucket formula structure, include electrolyzer cell body (7), negative electrode (2), metal anode (4), negative electrode (2) is an air cathode, electrolyzer body (14) is by the air cathode (2) that is arranged in the electrolyzer cell body (7), metal catalytic net (3), metal anode (4) is formed, alkaline electrolyte (6) is placed on electrolyzer cell body (7) and electrolyte container and holds concurrently in the gas-liquid separator (15), between air cathode (2) and metal catalytic net (3) and metal catalytic net (3) and the metal anode (4) plastics filter (5) is set, this plastics filter (5) is mainly used in isolated electrode, distribution electrolytic solution and make oxygen channel, air cathode (2) is by waterproof conduction air-permeable envelope (20), conductive mesh (21) and electrocatalysis film (22) are formed, electrolyzer body (14) top is provided with gas inlet (1), oxygen and electrolyte outlet (10), this electrolyzer body (14) bottom is provided with tail gas outlet (8) and circulation of elecrolyte inlet (11), be provided with wind box (9) in the air cathode (2), metal catalytic net (3) is made by hot dipping method or electrochemical plating by inner layer metal matrix and outer Catalytic Layer two portions, gas inlet (1) is connected with pneumatic pump (9) by soda-lime moisture eliminator (12), oxygen and electrolyte outlet (10) and the electrolyte container gas-liquid separator (15) of holding concurrently, circulation of elecrolyte inlet (11) constitutes the electrolytic solution self-circulation system, the electrolyte container gas-liquid separator (15) of holding concurrently is connected with moisture eliminator (17) with washing bottle (16), tail gas outlet (8) is observed bottle (18) with tail gas and is connected, air cathode (2) in the electrolyzer body (14), metal anode (4) respectively with direct current rectifying device (13) in negative pole, anodal linking to each other, on this direct current rectifying device (13) K switch 1 and K2 are set, metal anode adopts Rhometal or is the nickel material of matrix with the stainless steel, and its electrode shape can be netted or plate or the seat type.
The eelctro-catalyst that electrocatalysis film (22) is adopted can be spectroscopically pure graphite powder or crystalline graphite powder.
Metallic matrix in the metal catalytic net (3) can be nickel screen or stainless (steel) wire or wire netting, and the Catalytic Layer in the metal catalytic net (3) can be non-noble metal oxides such as Manganse Dioxide, cobalt oxide or molysite, mantoquita material.
Theoretical decomposition voltage in the method and apparatus of the present invention is+0.48 volt of (ψ
2°-ψ
1°=0.48 volt), belong to two electron reactions, compare with prior art brine electrolysis system oxygen theoretical decomposition voltage+1.23 volts, descended 0.75 volt, and under equal electric weight, oxygen-producing amount of the present invention doubles (because brine electrolysis system oxygen consumption 4 faraday electric weight can only produce 1 mol oxygen than brine electrolysis system oxygen, the present invention then can produce 2 mol oxygen), in oxygen preparation, only consume the electric energy that airborne oxygen and outer circuit provide in theory, in case energising, can prepare oxygen fast continuously, except that bipolar producing oxygen, can not separate out oxygen, so in the groove diaphragm material need not be set with danger.
The present invention compared with prior art, its major advantage is to adopt air cathode (2) and metal catalytic net (3) to have replaced liberation of hydrogen metallic cathode in the brine electrolysis system oxygen, make between air cathode (2) in this device and the metal catalytic net (3) and metal anode (4) produces oxygen simultaneously, so have the simultaneously quick continuous oxygen generation of negative electrode and anode, simple and reasonable, energy consumption is low, the efficient height, liberation of hydrogen not, no barrier film, cheap, easy and simple to handle, safe in utilization, advantages such as applied range, can be widely used in hospital, the laboratory, family, oxygen supply places such as fish farming field especially can and backwoodsmanly offer convenience with oxygen unit to the underdeveloped highlands of traffic, and therefore bigger practical value and economic results in society are arranged.
Fig. 1 is a bipolar oxygen-making electrochemical apparatus structure synoptic diagram.
Wherein: 12-soda-lime moisture eliminator, 13-direct current rectifying device, 14-electrolyzer body, the 15-electrolyte container gas-liquid separator of holding concurrently, 16-are washed bottle, the 17-moisture eliminator, and 18-tail gas is observed bottle, 19-pneumatic pump.
Fig. 2 is electrolyzer body (a 14) structural representation.
Wherein: 1-gas inlet, 2-air cathode, 3-metal catalytic net, 4-metal anode, 5-plastics filter, 6-alkaline electrolyte, 7-electrolyzer cell body, the outlet of 8-tail gas, 9-wind box, 10-oxygen and electrolyte outlet, 11-circulation of elecrolyte inlet.
Fig. 3 is air cathode (a 2) structural representation.
Wherein: 20-waterproof conduction air-permeable envelope, 21-conductive mesh, 22-electrocatalysis film.
Fig. 1, Fig. 2, Fig. 3 are specific embodiments of the invention.
Embodiment 1:
Shown in Fig. 2 and 3, the bipolar oxygen-making electrochemical device constitutes two monocells respectively by two air cathodes (2) and two metal anodes (4), through being formed in parallel; Air cathode (2) by two waterproof conduction air-permeable envelope (20), the silver plated conductive mesh of therebetween one deck stretching copper mesh (21) and electrocatalysis film (22) three parts through cold pressing, sintering makes, wherein the ultra-fine crystalline graphite powder be processed into by vibratory milling of electrocatalysis film (22) is made eelctro-catalyst, and with ptfe emulsion, gac, OP emulsifying agent and distilled water through mixing, heat, roll with processes such as acetone extractings and make; Metal anode (4) is for making the nickel plating material of matrix with seat type stainless (steel) wire; The metallic matrix of metal catalytic net (3) is a stainless (steel) wire, and Catalytic Layer is a Manganse Dioxide, makes with hot dipping method; Plastics filter (5) is the polypropylene woven net; Electrolyzer cell body (7) is by acrylic plastering welding or injection molded; Alkaline electrolyte (6) is 7mol.L
-1The reagent potassium hydroxide aqueous solution.
During the electrolysis operation, metal anode (4) and air cathode (2) and external circuit are just, negative pole is connected, the air of participating in reaction from gas inlet (1) by being pumped into wind box (9), remaining tail gas is outside electrolyzer cell body (7) is discharged in tail gas outlet (8), alkaline electrolyte (6) is flowed in the electrolyzer cell body (7) by circulation of elecrolyte inlet (11), the oxygen that generates is discharged outside the electrolyzer cell body (7) from oxygen and electrolyte outlet (10) with alkaline electrolyte (6), in electrolytic process, alkaline electrolyte (6) keeps self-circulation between oxygen and electrolyte outlet (10) and circulation of elecrolyte inlet (11).
Embodiment 2:
As shown in Figure 1, during bipolar oxygen-making electrochemical, at first air is delivered to soda-lime moisture eliminator (12) by pneumatic pump (19), to remove impurity such as airborne dust and carbonic acid gas, then the wind box (9) in the air input electrolyzer body of handling (14), tail gas is observed bottle (18) by tail gas and is entered atmosphere, alkaline electrolyte (6) is by electrolyte container gas-liquid separator (15) the input electrolyzer body (14) of holding concurrently, simultaneously, bearing in air cathode (2) in the electrolyzer body (14) and metal anode (4) and the direct current rectifying device (13), the anodal connection, after the energising, between air cathode (2) in the electrolyzer body (14) and the metal catalytic net (3) and metal sun grade (4) produce oxygen simultaneously, the alkaline electrolyte (6) of oxygen with electrolyzer body (14) in that reaction produces is by oxygen and electrolyte outlet (10) the inflow electrolyte container gas-liquid separator (15) of holding concurrently, oxygen after electrolyte container is held concurrently gas-liquid separator (15) separation purifies by washing bottle (16) and moisture eliminator (17), for directly using or store, and alkaline electrolyte (6) is in the electrolyte container self-circulation between gas-liquid separator (15) and the electrolyzer body (14) of holding concurrently.
Embodiment 3:
Carry out bipolar oxygen-making electrochemical according to embodiment 1 and 2, wherein the electrode area of air cathode of this device (2) and metal anode (4) is 120cm
2, reaction current 18A, bath voltage 1.95V, alkaline electrolyte 7mol.L
-1KOH, 296.7 ° of K of temperature of reaction, the oxygen of generation is 5.0311.h
-1, to analyse oxygen efficiency and reach 67.1%, oxygen purity is more than 98%.
Claims (6)
1, the bipolar oxygen-making electrochemical device, include electrolyzer cell body (7), negative electrode (2), metal anode (4), it is characterized in that negative electrode (2) is an air cathode, electrolyzer body (14) is by the air cathode (2) that is arranged in the electrolyzer cell body (7), metal catalytic net (3), metal anode (4) is formed, alkaline electrolyte (6) is placed in the electrolyzer cell body (7), between air cathode (2) and metal catalytic net (3) and metal catalytic net (3) and metal anode (4) plastics filter (5) is set, air cathode (2) is by waterproof conduction air-permeable envelope (20), conductive mesh (21) and electrocatalysis film (22) are formed, and metal catalytic net (3) is made by hot dipping method or electrochemical plating by inner layer metal matrix and outer Catalytic Layer two portions.
2, device as claimed in claim 1 is characterized in that the eelctro-catalyst that electrocatalysis film (22) is adopted is spectroscopically pure graphite powder or crystalline graphite powder.
3, device as claimed in claim 1, it is characterized in that the metallic matrix in the metal catalytic net (3) is nickel screen or stainless (steel) wire or wire netting, the Catalytic Layer in the metal catalytic net (3) is non-noble metal oxides such as Manganse Dioxide, cobalt oxide or molysite, mantoquita material.
4, the method of bipolar oxygen-making electrochemical, it is characterized in that in the described bipolar oxygen-making electrochemical device of claim 1, with the air is raw material, under the alkaline electrolyte effect, after the energising, on air cathode (2), at first airborne oxygen reduction is become hydrogen peroxide ions and hydroxide ion, the hydrogen peroxide ions of Sheng Chenging contacts with metal catalytic net (3) and resolves into oxygen and hydroxide ion then, simultaneously, air cathode (2) reduction and metal catalytic net (3) two hydroxide ions that catalytic decomposition generated are oxidized to the oxygen G﹠W on metal anode (4), air cathode (2), between the metal catalytic net (3) and the oxygen that generated simultaneously of metal anode (4) and electrolytic solution play oxygen by electrolyzer body (14) top and electrolyte outlet (10) and enter the electrolyte container gas-liquid separator (15) of holding concurrently, oxygen after wherein separating directly uses by washing bottle (16) and moisture eliminator (17) or stores, alkaline electrolyte returns electrolyzer body (14) again through the electrolyte container gas-liquid separator (15) of holding concurrently, electrolytic solution constitutes self-circulation system, tail gas is observed bottle (18) through tail gas and is entered atmosphere, reaches the purpose of bipolar oxygen-making electrochemical.
5, method for producing oxygen through as claimed in claim 4 is characterized in that used alkaline electrolyte is potassium hydroxide aqueous solution or aqueous sodium hydroxide solution, and its concentration range is 1-10mol.L
-1
6, method for producing oxygen through as claimed in claim 4 is characterized in that the required air of bipolar oxygen-making electrochemical is that air is removed impurity such as dust and carbonic acid gas through soda-lime moisture eliminator (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92112233A CN1035488C (en) | 1992-10-10 | 1992-10-10 | Electrochemical bipolar oxygen generation method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92112233A CN1035488C (en) | 1992-10-10 | 1992-10-10 | Electrochemical bipolar oxygen generation method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1085607A CN1085607A (en) | 1994-04-20 |
| CN1035488C true CN1035488C (en) | 1997-07-23 |
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|---|---|---|---|
| CN92112233A Expired - Fee Related CN1035488C (en) | 1992-10-10 | 1992-10-10 | Electrochemical bipolar oxygen generation method and device |
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| WO1979000933A1 (en) * | 1978-04-14 | 1979-11-15 | A Tseung | Gas extraction |
| US4533443A (en) * | 1983-10-19 | 1985-08-06 | Massachusetts Institute Of Technology | Production of hydrogen peroxide |
| CA1198710A (en) * | 1983-10-24 | 1985-12-31 | Karl T. Chuang | Oxygen generator |
| US5017274A (en) * | 1987-02-25 | 1991-05-21 | Aquanautics Corporation | Method and systems for extracting oxygen employing electrocatalysts |
-
1992
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1979000933A1 (en) * | 1978-04-14 | 1979-11-15 | A Tseung | Gas extraction |
| US4533443A (en) * | 1983-10-19 | 1985-08-06 | Massachusetts Institute Of Technology | Production of hydrogen peroxide |
| CA1198710A (en) * | 1983-10-24 | 1985-12-31 | Karl T. Chuang | Oxygen generator |
| US5017274A (en) * | 1987-02-25 | 1991-05-21 | Aquanautics Corporation | Method and systems for extracting oxygen employing electrocatalysts |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320167C (en) * | 2004-08-24 | 2007-06-06 | 珠海市东部金陆电器有限公司 | Multi-layer non-Hydrogen electrochemical oxygen-making machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1085607A (en) | 1994-04-20 |
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