CN202087222U - Equipment capable of leading oxygen active particle to form hydroxyl radical in gas - Google Patents
Equipment capable of leading oxygen active particle to form hydroxyl radical in gas Download PDFInfo
- Publication number
- CN202087222U CN202087222U CN2010206313350U CN201020631335U CN202087222U CN 202087222 U CN202087222 U CN 202087222U CN 2010206313350 U CN2010206313350 U CN 2010206313350U CN 201020631335 U CN201020631335 U CN 201020631335U CN 202087222 U CN202087222 U CN 202087222U
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- gas
- oxygen activity
- activity particle
- oxygen active
- reactor
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Abstract
The utility model relates to equipment capable of leading an oxygen active particle to form a hydroxyl radical in gas, belonging to the technical field of gas ionization discharging, plasma chemistry and environment engineering application. The equipment consists of an oxygen active particle generator, a high-frequency high-voltage power supply and an air flue (or a reactor), and is characterized in that: the oxygen active particles such as O<2+>, O3, O(1D), O(3P) and the like with concentration of 1*107/cm3-4*1018/cm3 are injected to the air flue or the reactor, wherein the O<2+> is reacted with H2O in gas to generate an HO<2-> initiator, the oxygen active particles and the HO<2-> initiator carry out plasma reaction to generate .OH, and the reaction time is from 1mus to 1ms; and .OH is oxidized to eliminate pollutants in gas, and the reaction time is from 0.01s to 10s. The equipment has the beneficial effects that: the problem that the pollutants are eliminated by the gas at present is solved, and new equipment for gas purification without catalysts, absorbents and reducing agents and negative effects to environment is realized.
Description
Technical field
The utility model belongs to gas ionization discharge, plasma chemistry and environmental project applied technical field, relates to oxygen activity particle formation hydroxyl free based device in the gas.
Background technology
There are contaminants of chemical origin and biological pollutant in the gas.Chemical pollutant is meant aromatic compound (toluene, dimethylbenzene, paracide etc.), organohalogen compounds (tetrachloro-ethylene, chloromethanes etc.); Alcohols (methyl alcohol, ethanol, chloro ethanol etc.); Ketone (acetone, methyl ethyl ketone etc.); Aldehydes (formaldehyde, acetaldehyde etc.); Ester class (ethyl acetate); Ethers (methyl ether, ether, propyl ether, basic ether, propyl ether); Organohalogen compounds (Niran, paracide, heptachlor etc.).Biological pollutant is meant bacterium, mould, streptococcus, Sour lung Legionella and dirt mite etc., and inorganic pollution such as gaseous sulfur dioxide, nitrogen oxide.Usually adopt purification methods such as absorption, photocatalysis, anion, ozone.Effective, feasible method is the ozone purification method in these methods.Because the ozone oxidation reduction potential is 2.07V, is selective decomposition, oxidize contaminants, can only handle part pollutant in the gas phase; It and pollutant reaction speed constant only are 10
-1L mols～10
2L mols, ozone is killed the Aspergillus time and is reached about 100min in gas phase, as seen, the most effective in the existing gas purification technique is the ozone gas purification techniques, but this technology remains in following weak point, oxidation-reduction potential only is 2.07V; Reaction rate constant is too low, only is 10
-1L mols～10
2L mols, than low 7 orders of magnitude of hydroxyl radical free radical OH, ozone is oxidation Decomposition pollutant and the selection killing microorganisms is arranged selectively thus; Reaction rate constant is low, and the reaction time, visible ozone gas purification method was difficult to satisfy current gas purification needs up to 20min～100min.
Present method for gas purification existing problems:
1) pollutant in the gas is selectively purified.Promptly being that a kind of method for gas purification is administered one or more pollutants, usually is to adopt several air purification methods to act synergistically to realize the gas purification purpose;
2) reaction rate constant of existing gas purification technique is very low, and the gas purification reaction time reaches 20min～100min, is difficult to realize that online fast gas purifies;
3) existing gas purifying equipment is bulky, one-time investment and operating cost height;
4) need extra catalyst, absorbent, reductant-oxidant etc., so that increase reaction rate and improve selectivity.
Summary of the invention
The purpose of this utility model is to solve to form hydroxyl free based method weak point in the gaseous state, and oxygen activity particle formation hydroxyl free based device in the gas is provided.This utility model is the oxygen activity particle (O the high concentration low discharge
2 +, O
3, O (
1D), O (
3P) etc.) in flow in pipes or the container, O in the oxygen activity particle
2 +Generate high initial reaction rate constant 2.2 * 10 with water reaction in the gas
6The hydroperoxyl IONS OF H O of L/mols
2 -Initator, oxygen activity particle and HO
2 -Carry out plasma reaction and generate active particle group, organic pollution and deadly, deactivation tiny organism, bacterium and virus in the oxidation Decomposition gas based on OH.Because its reaction rate constant is up to 10
7L mols～10
10L mols, can be in 1ms～10s organic pollution in the oxidation Decomposition gas; Cause death, the small harmful organism of deactivation and virus, realized that quick nothing selects to eliminate gas pollutant; Hydroxyl radical free radical OH oxidizing potential is up to 2.80V, and is almost suitable with fluorine (2.87V), and non-selectivity is eliminated chemistry and biological pollution in the gas, finally resolves into CO
2, H
2O and micro-inorganic salts.Meet Green Chemistry 12 principles, and reach the high-level oxidation technology requirement, the utility model has been realized without oxidant, catalyst and reducing agent, does not produce any byproduct that pollutes again, environment is not produced gas green, the fast purification new method of any negative effect.
The utility model solves technical scheme that its technology adopts:
This equipment is made up of oxygen activity particle generator, high-frequency and high-voltage power supply, air flue or reactor etc., and oxygen activity particle generator is to adopt narrow gap dielectric barrier discharge mode, and its discharging gap is 0.5mm～0.05mm.The O that oxygen activity particle generator 2 is produced
2 +, O
3, O (
1D), O (
3P) etc. oxygen activity particle 6 injects air flue 8 or reactor 10, wherein O
2 +Deng with gas in hydrone generation plasma chemical reaction generate hydroperoxyl ionic initiator HO
2 -, the oxygen activity particle is at initator HO
2 -Effect forms hydroxyl radical free radical OH down, and its scheme as shown in Figure 1, 2, 3.
The utility model adopts highfield ionic discharge method, and low discharge oxygen is produced high concentration (1 * 10
7/ cm
3～4 * 10
18/ cm
3) O
2 +, O
3, O (
1D), O (
3P) etc. oxygen activity particle 6 injects air flues 8 (or reactor 10), O in the oxygen activity particle
2 +Deng with gas 7 in hydrone generation plasma chemical reaction, generate high concentration (10
7/ cm
3～10
16/ cm
3), high initial reaction rate constant (2.2 * 10
6L/mols) HO
2 -The hydroperoxyl ionic initiator, O
2 +, O
3, O (
1D), O (
3P) oxygen activity particle 6 and initator HO such as
2 -It is 10 that reaction generates concentration
8/ cm
3～10
17/ cm
3OH, it 0.01s～10s in the time air flue 8 or reactor 10 in the pollutant oxidation eliminate, realization is without catalyst, absorbent, reducing agent and other conventional method synergy, pollutant in the gas 7 is eliminated in the OH oxidation, elimination factor reaches 85%～99.8%, from Fig. 1,2 as seen, forming the OH method and apparatus in air flue or reactor is key technology of the present utility model and device.The plasma reaction that active particle of the present utility model injects air flue or reactor generates the OH pattern as shown in Figure 3.
This scheme will provide a kind of effective, feasible new equipment, new technology for solving the problem that forms the hydroxyl radical free radical existence at present in gas.Implementing concrete steps of the present utility model is:
1. the oxygen activity particle is produced.
The utility model key technology is that oxygen activity particle generator and development newly produce high concentration O
2 +, O
3, O (
1D), O (
3The oxygen activity particle generator 2 of oxygen activity particle 6 such as P).It is made up of parts such as discharge plate, earthing pole, dielectric layer and partitions.Discharge electrode, earthing pole are to be processed into titanium or stainless steel, and regulate and control the temperature of plasma process reactor with cooling liquid.
The utility model adopts dielectric impedance highfield ionic discharge method O
2Make concentration and reach 1 * 10
7/ cm
3～4 * 10
18/ cm
3The oxygen activity particle, set up reduced electric field intensity in 0.5mm between discharge electrode and earthing pole～0.01mm discharging gap in 200Td～400Td scope internal ionization discharge field, electronics obtains average energy and reaches 6eV～9eV from electric field, the useful energy (8.4eV～12.5eV) will be deposited on O that wherein most of electron institute has
2On, be enough to O
2Dissociate, be ionized into the high concentration active particle, and the difference orientation generates oxygen activity particle O under the electric pulse field parameter regulation and control
2 +, O
3, O (
1D), O (
3P) etc.Produce oxygen activity particle plasma reaction pattern as shown in Figure 3, O is provided in flue
2 +, O
3, O (
1D), O (
3P) etc. oxygen activity particle 6 concentration reach 1 * 10
7/ cm
3～4 * 10
18/ cm
3
2. initator HO in air flue 8 or the reactor 10
2 -Formation.O in the oxygen activity particle
2 +Deng with gas 7 in water molecule reaction generate HO
2 -Initator, its plasma reaction pattern as shown in Figure 3.
H
2O
2With HO
2 -Be in a kind of balanced reaction state, in air flue or reactor, form initator HO
2 -Concentration reach 10
7/ cm
3～10
16/ cm
3
3. air flue or reactor OH oxidation destroy contaminants.Form in air flue 8 or the reactor 10 based on the active particle radical oxidation of OH and eliminate pollutant M in the gas, pollutant finally resolves into CO
2, H
2O and micro-inorganic salts.
Effect of the present utility model and benefit are that the oxygen activity particle is injected air flue or reactor and gas water molecule reaction generation OH, and this reaction is that high-level oxidation technology is expanded to new gas field from water treatment field.Because its chemical reaction rate is fast, exceed 7 more than the order of magnitude than present method for gas purification, so the chemical time of destroy contaminants only is 0.01s～10s, thereby flow process shortens, equipment reduces, and this will reduce equipment investment and operating cost significantly, cut down the consumption of energy; Realized purifying without the quick green gases of extra catalyst, absorbent and reducing agent; Reduce operating cost, new environmental pollution has not taken place again, solved the difficult problem of present gas purification technique, thereby accomplished zero environmental, zero waste discharge, reached the high-level oxidation technology principles and requirements; Help solving problems such as the high purification efficiency of China's gas purification energy consumption is low and bulky.
Description of drawings
Fig. 1 is that the oxygen activity particle injects air flue formation hydroxyl free based device schematic diagram.
Fig. 2 forms hydroxyl free based device schematic diagram in the oxygen activity particle injecting reactor.
Fig. 3 is the plasma chemical reaction ideograph that generates OH in air flue or the reactor.
Fig. 4 is the curve map that oxygen activity particle and pollutant mol ratio n influence the pollution abatement rate.
Fig. 5 is the curve map that water volume concentration influences destroy contaminants in the air flue.
Fig. 6 is the curve map of flue-gas temperature to the destroy contaminants influence.
Among the figure: 1. oxygen; 2. oxygen activity particle generator; 3. high-tension cable; 4. high-frequency and high-voltage power supply; 5.～220V; 6.O
2 +, O
3, O (
1D), O (
3Oxygen activity particle such as P); 7. gas; 8. air flue; 9. Purge gas; 10. reactor.
The specific embodiment
Be described in detail specific embodiment of the utility model below in conjunction with technical scheme and accompanying drawing.
The overall embodiment of the utility model as shown in Figure 1, 2.Forming O after oxygen 1 disassociation, the ionization
2 +, O
3, O (
1D), O (
3The oxygen activity particle generator 2 of oxygen activity particle 6 such as P).The generation hydroxyl radical free radical plasma chemical reaction pattern of oxygen activity particle generation of the present utility model and injection air flue 8 or reactor 10 as shown in Figure 3.
The utility model result of implementation is shown in Fig. 4～6.From the oxygen activity particle of Fig. 4 and pollutant mol ratio n to the curve of pollutant elimination factor influence as can be known, when oxygen activity particle and pollutant mol ratio were 4, the pollutant elimination factor reached 97.1%; When n=2, elimination factor reaches 91.5%.From Fig. 5 as seen, water volume concentration is lower than at 4% o'clock in the gas, and is bigger to the influence of pollutant elimination factor, when water volume concentration greater than 8% the time, then water volume concentration is to the almost not influence of pollutant elimination factor.From Fig. 6 as seen, when being lower than 60 ℃, gas temperature then the pollutant elimination factor is not almost had influence, linear decline during greater than 70 ℃.
Claims (1)
1. an oxygen activity particle forms the hydroxyl free based device in gas, it is characterized in that: this equipment is made up of oxygen activity particle generator (2), high-frequency and high-voltage power supply (4), air flue (8) or reactor (10), oxygen activity particle generator is made up of discharge plate, earthing pole, dielectric layer and partition, and discharge electrode, earthing pole are to be processed into titanium or stainless steel; Oxygen activity particle generator is to adopt narrow gap dielectric barrier discharge mode, and its discharging gap is 0.5mm～0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206313350U CN202087222U (en) | 2010-11-22 | 2010-11-22 | Equipment capable of leading oxygen active particle to form hydroxyl radical in gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206313350U CN202087222U (en) | 2010-11-22 | 2010-11-22 | Equipment capable of leading oxygen active particle to form hydroxyl radical in gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202087222U true CN202087222U (en) | 2011-12-28 |
Family
ID=45362321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206313350U Expired - Fee Related CN202087222U (en) | 2010-11-22 | 2010-11-22 | Equipment capable of leading oxygen active particle to form hydroxyl radical in gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202087222U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604180A (en) * | 2020-06-08 | 2020-09-01 | 江苏大学 | Strong ionization discharge sprayer and working method thereof |
| CN111841493A (en) * | 2020-06-24 | 2020-10-30 | 东南大学 | Quality improving device for increasing oxygen-containing functional groups of activated carbon |
| CN115501361A (en) * | 2022-10-14 | 2022-12-23 | 嘉兴和禹净化科技有限公司 | Hydroxyl plasma generator and disinfection and purification equipment |
-
2010
- 2010-11-22 CN CN2010206313350U patent/CN202087222U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604180A (en) * | 2020-06-08 | 2020-09-01 | 江苏大学 | Strong ionization discharge sprayer and working method thereof |
| CN111841493A (en) * | 2020-06-24 | 2020-10-30 | 东南大学 | Quality improving device for increasing oxygen-containing functional groups of activated carbon |
| CN115501361A (en) * | 2022-10-14 | 2022-12-23 | 嘉兴和禹净化科技有限公司 | Hydroxyl plasma generator and disinfection and purification equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20141122 |
|
| EXPY | Termination of patent right or utility model |