CN104862732A - Method and equipment for electrochemically generating ozone by oxygen-contained gas - Google Patents
Method and equipment for electrochemically generating ozone by oxygen-contained gas Download PDFInfo
- Publication number
- CN104862732A CN104862732A CN201510222879.9A CN201510222879A CN104862732A CN 104862732 A CN104862732 A CN 104862732A CN 201510222879 A CN201510222879 A CN 201510222879A CN 104862732 A CN104862732 A CN 104862732A
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- Prior art keywords
- fuel cell
- oxygen
- hydrogen fuel
- water
- hydrogen
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/13—Ozone
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a method and equipment for electrochemically generating ozone by oxygen-contained gas. The method is to electrolyze water by at least two water electrolysis pools, wherein the electricity is supplied to one water electrolysis pool by a hydrogen fuel cell; hydrogen generated by cathode sides of the water electrolysis pools and ozone and oxygen generated by anode sides are collected; the oxygen-contained gas and the collected hydrogen are respectively supplied to a positive pole and a negative pole of the hydrogen fuel cell; and water generated by the hydrogen fuel cell is transported to the water electrolysis pools. The equipment is provided with one hydrogen fuel cell; an exhaust port of the hydrogen fuel cell is connected with a gas-liquid separator; a water outlet of the gas-liquid separator is connected with raw material inlets of at least two water electrolysis pools; an electric output end of the hydrogen fuel cell is connected with one water electrolysis pool; hydrogen outlets of the water electrolysis pools are connected with the negative pole of the hydrogen fuel cell; and ozone and oxygen outlets of the water electrolysis pools are connected with a valve.
Description
Technical field
The present invention relates to a kind of electrochemical method generating ozone, especially a kind of simple to operate, cost low, safe and reliable by the method and apparatus of oxygen-containing gas Electrochemical Generation of Ozone.
Background technology
Ozone is a kind of unstable gas of strong oxidizing property, easily decomposes and cannot store, and therefore needs formed in-situ during actual use.The main method of existing generation ozone has plasma method and electrochemical method.Plasma method adopts oxygen, air or oxygen-rich air as the raw material generating ozone, plasma body is produced by dielectric barrier discharge or corona discharge, oxygen molecule is dissociated into Sauerstoffatom in the plasma, and Sauerstoffatom and oxygen molecule are reacted by three-body collision and generate ozone subsequently.Plasma method generates the main drawback of ozone: when with air or oxygen-rich air for raw material time, inevitably produce oxynitrides (NO
x) etc. harmful and corrosive gases; Take pure oxygen as raw material, though the generation of oxynitride can be avoided, because pure oxygen not easily obtains, not only increase the production cost of ozone, and be also restricted in use.Electrochemical method is generally adopt solid electrolyte film brine electrolysis technology, and the anode side of its electrolyzer produces ozone and oxygen, and cathode side produces hydrogen simultaneously.The advantage of electrochemical method is the impurity such as the obtained nonnitrogenous oxygen compound of product, but there are two large shortcomings: first cathode side produces inflammable and explosive hydrogen, can not directly discharge, complicated operation and there is potential safety hazard; It two is that energy consumption is excessive, and the electricity of at substantial and highly purified water, cost is higher.
At present, hydrogen fuel cell application is very general, its principle of work is: negative pole hydrogen being delivered to fuel cell, through the effect of catalyzer (platinum), an electronics in hydrogen atom is separated, lose the hydrogen ion (proton) of electronics through proton exchange membrane, arrive fuel cell anode, and electronics can only arrive fuel cell anode through load.Electronics is water with Sauerstoffatom and hydrogen ion recombine after arriving positive pole.
But, also hydrogen fuel cell is not combined with water electrolytic cell up to now and generates the method and apparatus of ozone.
Summary of the invention
The present invention is the above-mentioned technical problem in order to solve existing for prior art, provide a kind of simple to operate, cost low, safe and reliable by the method and apparatus of oxygen-containing gas Electrochemical Generation of Ozone.
Technical solution of the present invention is: a kind of method by oxygen-containing gas Electrochemical Generation of Ozone, is characterized in that carrying out in accordance with the following steps:
A. use at least two water electrolytic cell brine electrolysis, one of them water electrolytic cell is powered by hydrogen fuel cell, collect water electrolytic cell cathode side produce hydrogen and anode side produce ozone and oxygen;
B. oxygen-containing gas and the hydrogen that collects are supplied respectively positive pole and the negative pole of described hydrogen fuel cell;
C. the water that described hydrogen fuel cell produces is delivered to described water electrolytic cell.
A kind of method equipment by oxygen-containing gas Electrochemical Generation of Ozone, be provided with a hydrogen fuel cell, the venting port of described hydrogen fuel cell connects with gas-liquid separator, the water out of described gas-liquid separator is connected with the feed(raw material)inlet of at least two water electrolytic cells by the first valve, the electric output terminal of described hydrogen fuel cell connects with a water electrolytic cell, all the other water electrolytic cells connect with direct supply, the hydrogen outlet of described water electrolytic cell is connected with the negative pole of hydrogen fuel cell by the second valve, and the ozone of described water electrolytic cell and oxygen outlet connect with the 3rd valve.
Oxygen-containing gas is converted into water by hydrogen fuel cell by the present invention, then generates ozone using generated water as the raw material of water electrolytic cell, and the impurity such as the nonnitrogenous oxygen compound of ozone generated, purity is high.The hydrogen that water electrolytic cell brine electrolysis produces is as the raw material of hydrogen fuel cell, and the electric energy that hydrogen fuel cell produces is again for one of them water electrolytic cell is powered.Not only save electric energy and water, reduce the cost generating ozone, and the hydrogen made full use of, eliminate potential safety hazard.The present invention had both been applicable on a large scale, steady and continuous is run, and was also applicable to the flexible portable use in the places such as indoor and outdoor.
Accompanying drawing explanation
Accompanying drawing 1 is the equipment connection schematic diagram of the embodiment of the present invention.
Embodiment
As shown in Figure 1: be provided with a hydrogen fuel cell 1, the venting port of hydrogen fuel cell 1 connects with gas-liquid separator 2, the water out of gas-liquid separator 2 is connected with the feed(raw material)inlet of two water electrolytic cells 4 respectively by the first valve 3, the electric output terminal of hydrogen fuel cell 1 connects with a water electrolytic cell 4, another water electrolytic cell 4 and direct supply 5(MPS30 DC current stabilized power supply) power.Connect, the hydrogen outlet of water electrolytic cell 4 is connected with the negative pole of hydrogen fuel cell 1 by the second valve 6, and the ozone of water electrolytic cell 4 and oxygen outlet connect with the 3rd valve 7.
Hydrogen fuel cell 1 used and water electrolytic cell 4 are prior art, and the parameter of fuel cell is as follows: the H of dry state
2/ AIR; Working pressure normal pressure; Service temperature 30 ~ 80 DEG C; m
pt, MEA=0.7mg/cm
2; The test of single pond; Hydrogen recycle utilizes, and air velocity is 100 ml/min; Useful area is 5cm
2.
The parameter of water electrolytic cell is as follows: water electrolytic cell temperature is 45
oc, normal pressure, discharge 15ml/min, the test of single pond, useful area is 5cm
2, hydrogen, ozone and oxygen can be produced by brine electrolysis.Water electrolytic cell 4 at least two, but only have one to be powered by hydrogen fuel cell.
Also the entrance of pure water intake line with gas-liquid separator 2 can be connected, can as required when device start, importation pure water.
Working process is as follows:
1. first pure water is inputed to two water electrolytic cells 4, first the water electrolytic cell 4 of being powered by direct supply 5 works, and the ozone produced after brine electrolysis and oxygen outlet are by collecting after the 3rd valve 7;
2. oxygen-containing gas (air) is supplied the positive pole of hydrogen fuel cell 1, the hydrogen that water electrolytic cell 4 produces supplies the negative pole of hydrogen fuel cell 1 by the second valve 6, and hydrogen fuel cell 1 produces water vapour and electric energy;
3. the water vapour that hydrogen fuel cell 1 produces is separated through gas-liquid separator 2, the oxygen deprivation obtained or oxygenless gas can directly discharge, also can be used as byproduct Collection utilization, the water obtained then is delivered to two water electrolytic cells 4 as raw material by the first valve 3, and the electricity that hydrogen fuel cell 1 produces is that a water electrolytic cell 4 is powered;
4. two water electrolytic cells work simultaneously, and the ozone produced after brine electrolysis and oxygen outlet are by collecting after the 3rd valve 7, and repeat 2 ~ 4 steps, circulation is carried out.
If disregard volatilization or the loss that brings of evaporation factor, water does not need extra interpolation.
Under normal pressure, the working temperature of fuel cell 1 and water electrolytic cell 4 remains on 60 respectively
oc and 45
oc, air inputs the side of the positive electrode of hydrogen fuel cell 1 with 100 ml/min, and MPS30 DC current stabilized power supply 5 received current 2 A, output ozone gas flow 20 ml/min, ozone concn is 12 wt%.
Claims (2)
1., by a method for oxygen-containing gas Electrochemical Generation of Ozone, it is characterized in that carrying out in accordance with the following steps:
A. use at least two water electrolytic cell brine electrolysis, one of them water electrolytic cell is powered by hydrogen fuel cell, collect water electrolytic cell cathode side produce hydrogen and anode side produce ozone and oxygen;
B. oxygen-containing gas and the hydrogen that collects are supplied respectively positive pole and the negative pole of described hydrogen fuel cell;
C. the water that described hydrogen fuel cell produces is delivered to described water electrolytic cell.
2. one kind as claimed in claim 1 by the method equipment of oxygen-containing gas Electrochemical Generation of Ozone, it is characterized in that: be provided with a hydrogen fuel cell (1), the venting port of described hydrogen fuel cell (1) connects with gas-liquid separator (2), the water out of described gas-liquid separator (2) is connected by the feed(raw material)inlet of the first valve (3) with at least two water electrolytic cells (4), the electric output terminal of described hydrogen fuel cell (1) connects with a water electrolytic cell (4), all the other water electrolytic cells (4) connect with direct supply (5), the hydrogen outlet of described water electrolytic cell (4) is connected by the negative pole of the second valve (6) with hydrogen fuel cell (1), the ozone of described water electrolytic cell (4) and oxygen outlet connect with the 3rd valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222879.9A CN104862732A (en) | 2015-05-05 | 2015-05-05 | Method and equipment for electrochemically generating ozone by oxygen-contained gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222879.9A CN104862732A (en) | 2015-05-05 | 2015-05-05 | Method and equipment for electrochemically generating ozone by oxygen-contained gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104862732A true CN104862732A (en) | 2015-08-26 |
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|---|---|---|---|
| CN201510222879.9A Pending CN104862732A (en) | 2015-05-05 | 2015-05-05 | Method and equipment for electrochemically generating ozone by oxygen-contained gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005030A (en) * | 2020-01-08 | 2020-04-14 | 大连理工大学 | Electrochemical ozone generating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264433A (en) * | 1997-03-21 | 2000-08-23 | 林恩技术公司 | Integrated ozone generator system |
| CN1435512A (en) * | 2002-01-30 | 2003-08-13 | 友昕科技股份有限公司 | Ozone producing electrolyzer |
| CN1461824A (en) * | 2002-05-30 | 2003-12-17 | 谌冠卿 | Oxygen generator |
| CN204702808U (en) * | 2015-05-05 | 2015-10-14 | 大连理工大学 | By the equipment of oxygen-containing gas Electrochemical Generation of Ozone |
-
2015
- 2015-05-05 CN CN201510222879.9A patent/CN104862732A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264433A (en) * | 1997-03-21 | 2000-08-23 | 林恩技术公司 | Integrated ozone generator system |
| CN1435512A (en) * | 2002-01-30 | 2003-08-13 | 友昕科技股份有限公司 | Ozone producing electrolyzer |
| CN1461824A (en) * | 2002-05-30 | 2003-12-17 | 谌冠卿 | Oxygen generator |
| CN204702808U (en) * | 2015-05-05 | 2015-10-14 | 大连理工大学 | By the equipment of oxygen-containing gas Electrochemical Generation of Ozone |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005030A (en) * | 2020-01-08 | 2020-04-14 | 大连理工大学 | Electrochemical ozone generating device |
| CN111005030B (en) * | 2020-01-08 | 2021-05-07 | 大连理工大学 | Electrochemical ozone generating device |
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Application publication date: 20150826 |
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