CN207576103U - A kind of compartment low-temperature plasma generator for filling ozone-decomposing agent - Google Patents
A kind of compartment low-temperature plasma generator for filling ozone-decomposing agent Download PDFInfo
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- CN207576103U CN207576103U CN201721001058.3U CN201721001058U CN207576103U CN 207576103 U CN207576103 U CN 207576103U CN 201721001058 U CN201721001058 U CN 201721001058U CN 207576103 U CN207576103 U CN 207576103U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 230000004888 barrier function Effects 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 16
- 239000003795 chemical substances by application Substances 0.000 abstract description 12
- 230000015556 catabolic process Effects 0.000 abstract description 10
- 238000006731 degradation reaction Methods 0.000 abstract description 10
- 239000003344 environmental pollutant Substances 0.000 abstract description 8
- 231100000719 pollutant Toxicity 0.000 abstract description 8
- 230000002687 intercalation Effects 0.000 abstract 1
- 238000009830 intercalation Methods 0.000 abstract 1
- 210000002381 plasma Anatomy 0.000 description 69
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 24
- 239000007789 gas Substances 0.000 description 23
- 210000004027 cell Anatomy 0.000 description 19
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 13
- 239000007800 oxidant agent Substances 0.000 description 11
- 230000001590 oxidative effect Effects 0.000 description 11
- 239000002351 wastewater Substances 0.000 description 11
- 239000004215 Carbon black (E152) Substances 0.000 description 9
- 229930195733 hydrocarbon Natural products 0.000 description 9
- 150000002430 hydrocarbons Chemical class 0.000 description 9
- 150000003254 radicals Chemical class 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 7
- 239000012855 volatile organic compound Substances 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 230000000593 degrading effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003205 fragrance Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000002508 compound effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/66—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4608—Treatment of water, waste water, or sewage by electrochemical methods using electrical discharges
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Dispersion Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model is related to a kind of compartment low-temperature plasma generators for filling ozone-decomposing agent, including low-temperature plasma electrical source, discharge of plasma in low temperature unit, reaction of low temperature plasma device, two of which or more than two discharge of plasma in low temperature unit intercalation reaction devices, interval is laid in the medium flow direction, reaction of low temperature plasma device is partitioned into non-discharge area and region of discharge by low temperature plasma, and ozone-decomposing agent is placed in non-discharge area.The utility model can improve O in low-temperature plasma generator by placing ozone-decomposing agent in non-discharge area3The reaction probability of active particle and pollutant so as to further improve the degradation efficiency of pollutant, reduces the generation probability of secondary pollution.
Description
Technical field
The utility model is related to a kind of for waste water and the low-temperature plasma generator of exhaust-gas treatment, specifically, being related to
A kind of compartment low-temperature plasma generator for filling ozone-decomposing agent.
Background technology
Volatile organic matter (VOCs) is the important sources of atmosphere pollution.A large amount of VOCs are discharged into air, with NOx, SOx,
O3Deng the physical-chemical reaction that complexity occurs, lead to the generation of haze, serious harm is brought to health.At present, VOCs is normal
The active carbon adsorption of processing method, absorption process, heat-accumulation combustion method, Production by Catalytic Combustion Process, catalytic oxidation, bioanalysis and the light of rule
Catalysis method etc., but many unfavorable factors such as generally existing purification is not thorough, operating cost height.And using plasma technology point
It is a kind of novel method for purifying waste gases to solve all kinds of gaseous pollutant molecules, which has the dirt for opening and stopping, handling
Contaminate wide object range, anti-concentration and the advantages that flowed fluctuation ability is strong, purification efficiency is high.
In order to which using these toxic and harmful gas of Low Temperature Plasma Treating, people are directed to low-temperature plasma in exhaust-gas treatment
The mechanism of action of body and the method for generating low temperature plasma have carried out a large amount of basic research.Energy in low temperature plasma
It transmits substantially：Electronics obtains energy from electric field, and energy by colliding is converted into the interior energy and kinetic energy of molecule, obtains energy
Molecule be excited, at the same time, moieties are ionized, these particles activated are mutually collided so as to cause a series of multiple
Miscellaneous physical-chemical reaction.Because a large amount of active particles for being rich in plasma for example ion, electronics, excitation state atom and molecule
And free radical etc., so as to provide condition by chemical reaction handling VOCs and odorant for plasma technique.But right
During VOCs and odorant are degraded, when active particle is not often reacted with VOCs and odorant by
The new active particle of newly generated high energy electron excitation is compound, not high so as to the utilization rate of active particle.
In addition O can be generated when the discharge medium of low temperature plasma is air or oxygen3, and the service life of ozone is than other
Active particle will be grown, if be not fully utilized, have part O3Molecule by newly generated active particle it is compound fall, do not only result in
The utilization rate of active particle is not high, and can generate secondary pollution, such as nitrogen oxides.
Therefore the compound probability of active particle in low-temperature plasma generator is reduced, also means that and improves active grain
The efficiency of son degradation VOCs and odorant reduce secondary pollution generation probability.
Although in view of the above-mentioned problems, patent CN204429064U, CN204380489U, CN201830541U,
CN103418217B, CN204485611U, CN203002160U are referred to plural serial stage electric discharge, but the technology of these patents
Scheme is to simply increase the sum of series total power input of plasma generator, defeated in equal-wattage with the utility model
Plasma generator is laid at interval under the premise of entering, and effectively reduces the compound probability of active component, is improved to waste water or exhaust gas
Treatment effect has essential difference in mechanism and effect；In addition the time of every grade of electric discharge is longer in these patents, seeks to pass through
Extend discharge time to improve treatment effect, have from the discharge time shortened in this patent per level-one essential different.
In addition, O in the active material that low temperature plasma generates3Molecule lasts a long time, if not being fully utilized
Into new plasma generation area, it will by newly generated active particle it is compound fall, do not only result in the utilization of active particle
Rate is not high, and can generate secondary pollution, such as nitrogen oxides.
Utility model content
In view of the above-mentioned problems, the utility model passes through in the compartment discharge of plasma in low temperature area along media flow direction
Intermediate non-discharge area places ozone-decomposing agent, can improve O in low-temperature plasma generator3Active particle and pollutant
Reaction probability so as to further improve the degradation efficiency of pollutant, reduces secondary pollution generation probability.
The utility model provide it is a kind of fill ozone-decomposing agent compartment low-temperature plasma generator, including low temperature etc. from
Daughter power supply, discharge of plasma in low temperature unit, reaction of low temperature plasma device, two of which or more than two low temperature etc. from
Daughter discharge cell is inserted into reaction of low temperature plasma device, and interval is laid in the medium flow direction, and low temperature plasma is anti-
It answers and is divided into region of discharge and non-discharge area between device, ozone-decomposing agent is placed in non-discharge area.
Preferably, medium is 0.1s-50s by the time of the non-discharge area between being spaced the discharge cell laid.
Preferably, the ozone-decomposing agent is load C o, Mn, Ni monometallic or the carbon-based or molecular sieve of bimetallic oxide
Base distintegrant.
Preferably, low-temperature plasma electrical source is any one in high voltage power supply, DC power supply, the pulse power.
Preferably, the electric discharge pattern of discharge of plasma in low temperature unit is corona discharge, single dielectric barrier discharge, double media
Any one in barrier discharge, glow discharge, radio frequency discharge.
Preferably, low-temperature plasma generator is any one in grid type, spool formula or printed line formula.
The beneficial effects of the utility model：
(1) the utility model arranges multigroup discharge cell on waste water and exhaust gas flow direction, by waste water or useless
Gas interval is discharged, and can reduce the compound probability of active particle in low-temperature plasma generator, improves active particle to pollution
The degradation efficiency of object；
(2) ozone-decomposing agent is placed along the non-discharge area in media flow direction, low-temperature plasma generator can be improved
Interior O3The reaction probability of active particle and pollutant further improves the degradation efficiency of pollutant, reduces secondary pollution generation
Probability.
Below by the variation to organic exhaust gas total hydrocarbon degradation effect, analysis inhibits low temperature plasma active component compound
Effect：
(1) multigroup discharge cell is arranged on waste water and exhaust gas flow direction, can effectively enhance the disturbance of air-flow,
Promote the mixing of medium, so as to increase the collision of living radical and contaminant molecule and reaction probabilities, improve living radical
Utilization ratio.Lab scale, pilot scale and industrial experiment statistics indicate that, open single discharge cell, and dispose one behind not
The discharge cell of unlatching, by two-stage type dielectric barrier discharge equipment compared with not disposing discharge cell thereafter, organic exhaust gas
The degradation efficiency of total hydrocarbon improves 3%；
(2) energy injection of the generation of living radical dependent on discharge process, general feelings during dielectric barrier discharge
Under condition, with the raising of Implantation Energy, the yield of living radical rises therewith, but increase is gradually slack-off, and single electric discharge
There are the upper limits for the Implantation Energy of unit and the generation density of living radical.Therefore, under certain power consumption, using multigroup electric discharge
Unit reasonably distributes energy injection, there is important influence for the yield of living radical.Lab scale and pilot experiment research
Show using single discharge cell, and a discharge cell do not opened is set behind, by putting for two-stage type dielectric impedance
For electric equipment compared with only setting single discharge cell, the former total hydrocarbon degradation efficiency is apparently higher than the latter；
(3) experiments have shown that, using two discharge cells, each discharge cell power is 180W, organic exhaust gas and low temperature
Plasma generator time of contact is respectively 0.1s, and the spacing of two low-temperature plasma generators is increased to 1.0m by 0.3m,
Total hydrocarbon degradation efficiency is 81%.In the case where total power consumption is certain, compared to single discharge cell, and increases electric discharge spacing, open
The total hydrocarbon degradation efficiency for opening two groups of discharge cells improves 19%.The reason is that O and O that discharge process generates3Isoreactivity free radical
Density is higher and lasts a long time (＞ 1s), is generating through first discharge cell and is discharging as the flowing of gas reaches second
It is difficult to completely consume during unit, still has a large amount of O and O on second discharge cell periphery3Isoreactivity free radical, their presence
It can inhibit second discharge cell O and O3Generation, therefore, when two discharge cells arrangement is nearer, generated total O and O3
The sum of generated when amount is individually arranged less than two discharge cells, using the adjustable design of spacing in the utility model, effectively keep away
Exempt from this problem.
Description of the drawings
Fig. 1 is the position view of ozone-decomposing agent in compartment low-temperature plasma generator described in the utility model；
Fig. 2 is the schematic diagram of compartment low-temperature plasma generator described in the utility model.
Label declaration：
1- reaction of low temperature plasma devices；2- low-temperature plasma generators；3- low-temperature plasma electrical sources；
4- terminal boxes；5- forms；6- sewage draining exits；7- blow valve ports.
Specific embodiment
Embodiment 1
The setup parameter for filling the low-temperature plasma generator of ozone decomposed oxidant layer is as follows：By 2 double-dielectric barrier discharges
Low-temperature plasma generator is spaced 0.6m layings in the medium flow direction, is filled out between two low-temperature plasma generators
The ozone decomposed oxidant layer (the carbon-based distintegrant of load C o) of 5cm thickness is filled, total power input 360W, the speed of media flow is 1m/
S, medium are 0.05s with each plasma generator time of contact, and medium is 0.1s in the non-discharge area residence time.
The organic volatile gas that certain sewage from oil refinery processing unit generates is taken to be tested, before experiment, the content of benzene in exhaust gas
For 120 mg/Nm3, after degrading by above-mentioned compartment low-temperature plasma generator, the content of benzene is 46mg/Nm3, benzene removal
Rate is up to 61%.
Comparative example 1
The setup parameter of compartment temperature plasma generator is as follows：2 double-dielectric barrier discharge low-temperature plasmas are sent out
Raw device is spaced 0.6m layings in the medium flow direction, is not provided with ozone decomposed oxidant layer, total power input 360W, media flow
Speed is 1m/s, and medium is 0.05s with each plasma generator time of contact, and medium is in the non-discharge area residence time
0.1s。
Organic volatile gas same as Example 1 is taken to be tested, benzene removal rate is 42%.
Embodiment 2
The setup parameter for filling the low-temperature plasma generator of ozone decomposed oxidant layer is as follows：By 2 single dielectric impedances, spools
Formula low-temperature plasma generator is spaced 1.0m layings in the medium flow direction, after each low-temperature plasma generator
Fill the ozone decomposed oxidant layer (the molecular screen base distintegrant of load Mn) of 5cm thickness, the low-temperature plasma generator apart from front
Distance for 0.6m, total power input 360W, the speed of media flow is 0.5m/s, and medium connects with each plasma generator
It is 0.3s to touch the time, and medium is 3s in the residence time of non-discharge area.
The organic volatile exhaust gas that certain sewage from oil refinery processing unit generates is taken to be tested, before experiment, benzene contains in exhaust gas
It measures as 80 mg/Nm3, after degrading by above-mentioned compartment low-temperature plasma generator, the content of benzene is 14mg/Nm3, benzene removal
Rate is up to 83%.
Comparative example 2
The setup parameter of compartment low-temperature plasma generator is as follows：By 2 single dielectric impedances, spool formula low-temperature plasmas
Continuous 1.0m is laid body generator in the medium flow direction, is not provided with ozone decomposed oxidant layer, total power input 360W, medium flow field
Dynamic speed is 0.5m/s, and medium is 0.3s with each plasma generator time of contact, and medium is stopped in non-discharge area
Time is 3s.
Organic exhaust gas same as Example 2 is taken to be tested, the removal rate of benzene is 57%.
Embodiment 3
The setup parameter for filling the low-temperature plasma generator of ozone decomposed oxidant layer is as follows：By 3 bi-medium to block, grids
Formula low-temperature plasma generator is spaced 1.0m layings in the medium flow direction, in the direction of media flow two low temperature etc.
The ozone decomposed oxidant layer (the molecular screen base distintegrant of load Ni) of 5cm thickness is filled between plasma generator, apart from front low temperature
The distance of plasma generator is 0.8m, total power input 360W, and the speed of media flow is 1m/s, medium with it is each wait from
Daughter generator time of contact is 0.1s, and medium is 5s in the non-discharge area residence time.
The organic exhaust gas Volatile Gas that certain sewage from oil refinery processing unit generates is taken to be tested, before experiment, total hydrocarbon in exhaust gas
Content is 760mg/Nm3, after degrading by above-mentioned compartment low-temperature plasma generator, total hydrocarbon content 80mg/Nm3, always
Hydrocarbon removal rate is up to 89%.
Comparative example 3
The setup parameter of compartment low-temperature plasma generator is as follows：By 3 bi-medium to block, grating type low-temperature plasma
Body generator outer electrode is spaced 1.0m layings in the medium flow direction, is not provided with ozone decomposed oxidant layer, total power input
360W, the speed of media flow is 1m/s, and medium is 0.1s with each plasma generator time of contact, and medium is in absence of discharge
The region residence time is 5s.
Organic exhaust gas same as Example 3 is taken to be tested, total hydrocarbon removal rate is 70%.
Embodiment 4
The setup parameter for filling the low-temperature plasma generator of ozone decomposed oxidant layer is as follows：By 4 corona discharge arrays, plates
Wire type low-temperature plasma generator interval 0.3m is laid, in the direction of media flow two low-temperature plasma generators it
Between filling 5cm thickness the ozone catalytic oxidant layer molecular screen base distintegrant of Mn, Ni bimetallic oxide (load), it is low apart from front
The distance of isothermal plasma generator is 0.8m, total power input 360W, medium and each plasma generator time of contact
For 30s, medium is 50s in the non-discharge area residence time.
The water outlet of certain sewage from oil refinery processing unit is taken to be tested, before experiment, the content of COD is 90mg/L in waste water,
After degrading by above-mentioned compartment low-temperature plasma generator, the content of COD is 4.5mg/L, and removal rate is up to 95%.
Comparative example 4
The setup parameter of compartment low-temperature plasma generator is as follows：By 4 corona discharge arrays, printed line formula low temperature etc. from
Daughter generator interval 0.3m is laid, and is not provided with ozone catalyst, total power input 360W, and waste water occurs with each plasma
Device time of contact is 30s, and waste water is 50s in the non-discharge area residence time.
Waste water same as Example 4 is taken to be tested, COD removal rates are 60%.
It can be seen that from above-described embodiment 1-4 and comparative example 1-4 and multigroup put arranged on waste water or exhaust gas flow direction
Electric unit places ozone-decomposing agent by discharging waste water or exhaust gas interval, while along the non-discharge area in media flow direction,
The removal rate of pollutant can be significantly improved.
Claims (6)
1. a kind of compartment low-temperature plasma generator for filling ozone-decomposing agent, including low-temperature plasma electrical source, low temperature etc.
Plasma discharge unit, reaction of low temperature plasma device, which is characterized in that two or more discharge of plasma in low temperature
Unit is inserted into reaction of low temperature plasma device, and interval is laid in the medium flow direction, by reaction of low temperature plasma device interval
For region of discharge and non-discharge area, ozone-decomposing agent is placed in non-discharge area.
2. a kind of compartment low-temperature plasma generator for filling ozone-decomposing agent according to claim 1, feature exist
In medium is 0.1s-50s by the time of the non-discharge area between being spaced the plasma discharge cells laid.
3. a kind of compartment low-temperature plasma generator for filling ozone-decomposing agent according to claim 1, feature exist
In the ozone-decomposing agent is load C o, Mn, Ni monometallic or the carbon-based or molecular screen base distintegrant of bimetallic oxide.
4. a kind of compartment low-temperature plasma generator for filling ozone-decomposing agent according to claim 1, feature exist
In low-temperature plasma electrical source is any one in high voltage power supply, DC power supply, the pulse power.
5. a kind of compartment low-temperature plasma generator for filling ozone-decomposing agent according to claim 1, feature exist
In the electric discharge pattern of discharge of plasma in low temperature unit is corona discharge, single dielectric barrier discharge, double-dielectric barrier discharge, brightness
Light electric discharge, any one in radio frequency discharge.
6. a kind of compartment low-temperature plasma generator for filling ozone-decomposing agent according to claim 1, feature exist
In low-temperature plasma generator is any one in grid type, spool formula or printed line formula.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017206346623 | 2017-06-02 | ||
| CN201720634662 | 2017-06-02 |
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| Publication Number | Publication Date |
|---|---|
| CN207576103U true CN207576103U (en) | 2018-07-06 |
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| CN201721001058.3U Active CN207576103U (en) | 2017-06-02 | 2017-08-11 | A kind of compartment low-temperature plasma generator for filling ozone-decomposing agent |
| CN201710684060.3A Active CN108970363B (en) | 2017-06-02 | 2017-08-11 | Interval type low-temperature plasma generator filled with ozone decomposer |
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| CN201710684060.3A Active CN108970363B (en) | 2017-06-02 | 2017-08-11 | Interval type low-temperature plasma generator filled with ozone decomposer |
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| CN108970363A (en) * | 2017-06-02 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of compartment low-temperature plasma generator for filling ozone-decomposing agent |
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| WO2007093810A2 (en) * | 2006-02-17 | 2007-08-23 | Plasma Clean Limited | Gas treatment using a plurality of plasma generating reactor units |
| CN204429064U (en) * | 2014-11-28 | 2015-07-01 | 上海译琅环保科技有限公司 | A kind of device of plasma for purification industrial waste gas |
| CN105066271A (en) * | 2015-08-12 | 2015-11-18 | 无锡伦宝环保科技有限公司 | Multi-ion-field indoor air purifier |
| CN105833677A (en) * | 2016-04-19 | 2016-08-10 | 中国石油化工股份有限公司 | Method and equipment for treating volatile organic compounds by low-temperature plasma coupling adsorption |
| CN207576103U (en) * | 2017-06-02 | 2018-07-06 | 中国石油化工股份有限公司 | A kind of compartment low-temperature plasma generator for filling ozone-decomposing agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108970363A (en) * | 2017-06-02 | 2018-12-11 | 中国石油化工股份有限公司 | A kind of compartment low-temperature plasma generator for filling ozone-decomposing agent |
| CN108970363B (en) * | 2017-06-02 | 2023-11-03 | 中国石油化工股份有限公司 | Interval type low-temperature plasma generator filled with ozone decomposer |
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| CN108970363A (en) | 2018-12-11 |
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Effective date of registration: 20221206 Address after: No. 22, Chaoyangmen street, Chaoyang District, Beijing 100020 Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec Safety Engineering Research Institute Co.,Ltd. Address before: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: SINOPEC Research Institute OF SAFETY ENGINEERING |