CN200984495Y - Device for processing waste gas by homogeneous improving of corona discharge by using un-homogeneous catalyst - Google Patents
Device for processing waste gas by homogeneous improving of corona discharge by using un-homogeneous catalyst Download PDFInfo
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- CN200984495Y CN200984495Y CN 200620140281 CN200620140281U CN200984495Y CN 200984495 Y CN200984495 Y CN 200984495Y CN 200620140281 CN200620140281 CN 200620140281 CN 200620140281 U CN200620140281 U CN 200620140281U CN 200984495 Y CN200984495 Y CN 200984495Y
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- 239000002912 waste gas Substances 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 title description 2
- 239000002815 homogeneous catalyst Substances 0.000 title 1
- 239000007789 gas Substances 0.000 claims abstract description 56
- 239000003054 catalyst Substances 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 25
- 238000007210 heterogeneous catalysis Methods 0.000 claims description 10
- 230000002708 enhancing effect Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 150000003254 radicals Chemical class 0.000 abstract description 23
- 239000003344 environmental pollutant Substances 0.000 abstract description 13
- 231100000719 pollutant Toxicity 0.000 abstract description 13
- 238000006731 degradation reaction Methods 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 238000007172 homogeneous catalysis Methods 0.000 abstract description 2
- 238000006722 reduction reaction Methods 0.000 abstract description 2
- 239000002638 heterogeneous catalyst Substances 0.000 abstract 3
- 238000000889 atomisation Methods 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 2
- -1 hydroxyl radical free radical Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011949 solid catalyst Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007809 chemical reaction catalyst Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 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
- 230000002950 deficient Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a heterogeneous catalyst homogeneous-phase reinforced corona discharge waste gas treatment device. Being atomized inside an atomization chamber, catalyst solution enters into the hollow jet nozzle corona electrode of a corona discharge reactor together with free radical source gas and then is ejected by a metal jet nozzle to enter into a plasma corona zone, thereby realizing homogeneous-phase of the heterogeneous catalyst to bring the catalyst into play inside the corona discharge plasma reactor; free radical source gas molecules are excitated through corona discharge inside the corona discharge reactor to generate a great deal of free radicals of high activity to complete oxidation or reduction reaction with pollutant gas molecule entering into the reactor, thereby realizing degradation of pollutants; in addition, homogeneous catalysis of heterogeneous catalyst can improve excitation efficiency of free radical source gas by corona discharge so as to greatly increase free radical yield and make pollutant gas molecule fully contact free radical for being oxidized or deoxidized, thereby substantially increasing degradation efficiency of pollutants.
Description
Technical field
The utility model relates to exhaust gas treatment technology, especially relates to a kind of heterogeneous catalysis homogeneous phase enhancing waste gas treating corona discharge device.
Background technology
In recent years, the corona discharge exhaust-gas treatment is also progressively pushed to use by extensive studies as a kind of Low Temperature Plasma Treating technology.Chemical reaction in the low temperature plasma mainly is to excite by the high energy electron that gas discharge produces to finish.Electronics, ion, free radical and excited state molecule are rich in low temperature plasma inside.Wherein inelastic collision takes place in high energy electron and gas molecule (atom), energy is converted into the interior energy of ground state molecule (atom), excite, a series of processes such as disassociation and ionization, make gas be in the state of activation, produce free radicals such as oxidisability extremely strong OH, H, O.And the nonequilibrium plasma energy consumption is not high, and this provides desirable approach for some need the removal that difficult degradation is polluted in the reaction of very big activation energy such as the atmosphere.
In order further to improve the removal efficient of plasma reaction to pollutant, a lot of researchs combine it with catalysis technique.At present, plasma catalyst and catalytic reactor are by extensive studies and exploitation, but there are very big defective in existing catalyst and reactor.Commonly used has: catalyst-supporting support is filled in the inside reactor of plasma as filler, as the dielectric of dielectric barrier discharge, strengthens plasma reaction as catalyst on the other hand on the one hand, increase reaction efficiency; Catalyst is directly loaded on the sparking electrode of plasma reactor, make it in the process that produces corona, bring into play catalytic activity; The material that will have catalytic activity loads on porous adsorbent (as active carbon, asbestos) and is filled in plasma reactor region of discharge back, makes it carry out further catalytic reaction to the pollutant of handling through exoelectrical reaction, reaches the successive stages removal.The form that catalyst exists in the method for above catalyst enhancing plasma reaction is mainly and loads on the surface of solids, and what carry out is heterogeneous catalytic reaction, and promptly solid catalyst acts on the reaction of gaseous material.Because the solid catalyst contact area is limited, this reactive mode is difficult to the reactivity of catalyst is made full use of.On the other hand,, increased filled media, increased air resistance, more restricted the disposal ability of reactor and the commercial Application of extensive big flow for the filled type reactor.
Therefore, the homogeneous phase technology of exploitation heterogeneous catalysis is applied to strengthen important technology and the means that corona discharge discharge process waste gas is breakthrough plasma reaction exhaust-gas treatment efficient.
Summary of the invention
The purpose of this utility model is to provide a kind of heterogeneous catalysis homogeneous phase enhancing waste gas treating corona discharge device, the homogeneous phase technology of heterogeneous catalysis is applied to strengthen discharge of plasma in low temperature processing waste gas, and the method can strengthen plasma reaction significantly and handle treatment of waste gas efficient.
The technical scheme that its technical problem that solves the utility model adopts is to comprise:
1) exhaust treatment system: comprise that two ends have the cylindric insulation crust of waste gas inlet and purified gas gas outlet, cylindric wire netting earthing pole, high voltage source, two insulating electrode supports and hollow nozzle corona discharge electrode; Cylindric insulation crust inwall is equipped with cylindric wire netting earthing pole, and the hollow nozzle corona discharge electrode is contained in cylindric wire netting earthing pole center, and fixes by the insulating electrode support at two ends, and the positive pole of high voltage source connects rotating nozzle type metal corona discharge electrode, minus earth;
2) catalyst homogeneous phase system: comprise radical source gas source, gas flowmeter, triple valve, steam spray chamber, catalyst spray chamber, atomized catalyst mixing chamber; The hydroxyl radical gas source is successively by behind gas flowmeter and the gas triple valve, the inlet end of difference water receiving steam spray chamber and catalyst spray chamber, the inlet end of the termination catalyst mix chamber of giving vent to anger of steam spray chamber and catalyst spray chamber, the central inlet of the termination hollow nozzle corona discharge electrode of giving vent to anger of catalyst mix chamber.
Described hollow nozzle corona discharge electrode, its periphery is evenly equipped with the metallic nozzle of hollow, the metallic nozzle of hollow is connected with the hollow nozzle corona discharge electrode, the metallic nozzle of hollow the hollow nozzle corona discharge electrode radially to be the circumference equal angles uniform, axially be equidistant or many helical structures, the hollow nozzle corona discharge electrode is near the end sealing of waste gas inlet, and the hollow nozzle corona discharge electrode is near an end opening of purified gas gas outlet.
Heterogeneous catalysis homogeneous phase enhancing waste gas treating corona discharge method, be in spray chamber, catalyst solution to be atomized, together enter the hollow nozzle corona discharge electrode of corona discharge reactor with radical source gas, and enter plasma corona district through metallic nozzle ejection, realize the homogeneous phaseization of heterogeneous catalysis, in corona discharge plasma reactor, bring into play catalytic action; In corona discharge reactor, excite the radical source gas molecule to produce a large amount of high mars free radicals by corona discharge, with the generation oxidation of contaminant gases molecule or the reduction reaction that enter reactor, make pollutant obtain degraded, the heterogeneous catalysis homogeneous catalysis can strengthen the efficient that corona discharge excites radical source gas, the productive rate of free radical is increased greatly, make to enter to contact oxidized or be reduced, reach the degradation efficiency that significantly improves pollutant with free radical is more abundant.
Described catalyst is that class Fenton catalyst promptly contains transition metal solution at least a in following metal ion iron, manganese, cobalt, vanadium, the copper or its oxide, and solution concentration is 0.01~1.0mol/L.
The beneficial effect that the utlity model has is: heterogeneous class Fenton plasma reaction catalyst homogeneous phaseization is added in the plasma corona zone, increased the contact area of catalyst, make its degradation reaction more abundant, under the situation that does not increase the inside reactor gas-flow resistance, significantly strengthen exhaust-gas treatment efficient.
Description of drawings
Fig. 1 is plasma reaction and catalyst homogeneous phase makeup interposed structure figure;
Fig. 2 is corona discharge electrode structure chart and cutaway view Amplified image;
Fig. 3 is class Fenton catalyst (Fe
2+) strengthen the plasma removal efficiency experimental result of pollutant benzene.
Among the figure: 1. cylindric insulation crust, 2. purified gas gas outlet, 3. catalyst mix chamber, 4. catalyst spray chamber, 5. steam spray chamber, 6. triple valve, 7. gas flowmeter, 8. radical source gas source, 9. cylindric wire netting earthing pole, 10. waste gas inlet, 11. high voltage source, 12. the insulating electrode support, 13. hollow nozzle corona discharge electrodes, 14. hollow metal nozzles.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1 and Figure 2, the utility model comprises:
1) exhaust treatment system: comprise that two ends have the cylindric insulation crust 1 of waste gas inlet 10 and purified gas gas outlet 2, cylindric wire netting earthing pole 9, high voltage source 11, two insulating electrode supports 12 and hollow nozzle corona discharge electrodes 13; Cylindric insulation crust 1 inwall is equipped with cylindric wire netting earthing pole 9, hollow nozzle corona discharge electrode 13 is contained in cylindric wire netting earthing pole 9 centers, and fixing by the insulating electrode support 12 at two ends, the positive pole of high voltage source 11 connects rotating nozzle type metal corona discharge electrode 13, minus earth;
2) catalyst homogeneous phase system: comprise radical source gas source 8, gas flowmeter 7, triple valve 6, steam spray chamber 5, catalyst spray chamber 4, atomized catalyst mixing chamber 3; Hydroxyl radical gas source 8 is successively by behind gas flowmeter 7 and the gas triple valve 6, the inlet end of difference water receiving steam spray chamber 5 and catalyst spray chamber 4, the inlet end of the termination catalyst mix chamber 3 of giving vent to anger of steam spray chamber 5 and catalyst spray chamber 4, the central inlet of the termination hollow nozzle corona discharge electrode 13 of giving vent to anger of catalyst mix chamber 3.
Shown in Fig. 2 a, Fig. 2 b, described hollow nozzle corona discharge electrode 13, its periphery is evenly equipped with the metallic nozzle 14 of hollow, the metallic nozzle 14 of hollow is connected with hollow nozzle corona discharge electrode 13, the metallic nozzle 14 of hollow hollow nozzle corona discharge electrode 13 radially to be the circumference equal angles uniform, axially be equidistant or many helical structures, hollow nozzle corona discharge electrode 13 is near the end sealing of waste gas inlet 10, and hollow nozzle corona discharge electrode 13 is near an end opening of purified gas gas outlet 2.
The corona discharge plasma technology is combined with class Fenton catalytic reaction, investigate containing the benzene simulated exhaust.Configuration concentration is the solution that 0.01~1.0mol/L contains the class Fenton catalyst of ferrous ion, pack in the catalyst spray chamber 4 (as the atmospheric sampling pipe), dress water in the steam spray chamber 5, be used for regulating the humidity of radical source gas, radical source gas was divided into two-way by triple valve 6 earlier enters two spray chambers respectively before entering corona discharge reactor, regulate the gas flow that enters each spray chamber as required, because the severe impact of air-flow causes that liquid sharply shakes, bubbling, bubble constantly breaks, thereby form countless minimum drops, enter by hollow nozzle corona discharge electrode 13 1 ends with radical source gas, from 14 ejections of hollow metallic nozzle, so class Fenton catalyst enters the corona zone with air-flow.The waste gas that contains pollutant enters from reactor one end waste gas inlet 10, the reactor corona zone of flowing through 2 flows out from other end purified gas gas outlet, give high voltage source 11 power supplies, making the interior interpolar electric-field intensity of reactor is 1~10kV/cm, produce the corona zone at two interpolars, because the adding of atomizing class Fenton catalyst and steam, make radical source gas cause the class Fenton's reaction, generation has strong active particles such as the hydroxyl radical free radical of strong oxidizing property, because enter the droplet size of corona zone with electrode gas minimum, has bigger effective contact area with pollutant, solid and the limited deficiency of liquid catalyst contact area have been overcome, therefore reaction is more abundant, has better removal effect.Thereby improved the removal efficiency of pollutant effectively.
Fig. 3 has reflected class Fenton catalyst (Fe
2+) strengthen the plasma removal efficiency experimental result of pollutant benzene.As can be seen from the figure, the existence of class Fenton catalyst has improved the removal efficiency of benzene effectively, and when the radical source gas humidity was 100% (RH=100%), the highest removal efficiency reached as high as 85%, has improved 25% during than no class Fenton catalyst.
The mechanism of this reaction is, under the effect of highfield, and O
2With H
2O can generate a certain amount of hydrogen peroxide, Fe
2+With Fe
3+Decompose by electronics transfer function catalyzing hydrogen peroxide, generate the hydroxyl radical free radical OH with strong oxidizing property, this process is called the class Fenton's reaction.Its key reaction is shown below:
Fe
2++H
2O
2→Fe
3++·OH
Fe
3++H
2O
2→Fe
2++HO
2·+H·
The OH free radical carries out oxidation as strong oxidizer to benzene and intermediate product thereof, finally changes into H through complex series of reactions
2O, CO
2, little molecular product such as CO, realize removing to benzene.
O
2+H
2O+e
*→O·+·OH+HO
2·+H
2O
2,etc
Fe
2++H
2O
2→Fe
3++·OH+OH
Fe3
++H
2O
2→Fe
2++HO
2·+H·
The above-mentioned specific embodiment is used for the utility model of explaining; rather than the utility model limited; in the protection domain of spirit of the present utility model and claim, any modification and change to the utility model is made all fall into protection domain of the present utility model.
Claims (2)
1. the device of heterogeneous catalysis homogeneous phase enhancing waste gas treating corona discharge is characterized in that:
1) exhaust treatment system: comprise that two ends have the cylindric insulation crust (1) of waste gas inlet (10) and purified gas gas outlet (2), cylindric wire netting earthing pole (9), high voltage source (11), two insulating electrode supports (12) and hollow nozzle corona discharge electrode (13); Cylindric insulation crust (1) inwall is equipped with cylindric wire netting earthing pole (9), hollow nozzle corona discharge electrode (13) is contained in cylindric wire netting earthing pole (9) center, and it is fixing by the insulating electrode support (12) at two ends, the positive pole of high voltage source (11) connects rotating nozzle type metal corona discharge electrode (13), minus earth;
2) catalyst homogeneous phase system: comprise radical source gas source (8), gas flowmeter (7), triple valve (6), steam spray chamber (5), catalyst spray chamber (4), atomized catalyst mixing chamber (3); Hydroxyl radical gas source (8) is successively by behind gas flowmeter (7) and the gas triple valve (6), the inlet end of difference water receiving steam spray chamber (5) and catalyst spray chamber (4), the inlet end of the termination catalyst mix chamber (3) of giving vent to anger of steam spray chamber (5) and catalyst spray chamber (4), the central inlet of the termination hollow nozzle corona discharge electrode (13) of giving vent to anger of catalyst mix chamber (3).
2. the device of heterogeneous catalysis homogeneous phase enhancing waste gas treating corona discharge according to claim 1, it is characterized in that: described hollow nozzle corona discharge electrode (13), its periphery is evenly equipped with the metallic nozzle (14) of hollow, the metallic nozzle of hollow (14) is connected with hollow nozzle corona discharge electrode (13), the metallic nozzle of hollow (14) hollow nozzle corona discharge electrode (13) radially to be the circumference equal angles uniform, axially be equidistant or many helical structures, hollow nozzle corona discharge electrode (13) is near the end sealing of waste gas inlet (10), and hollow nozzle corona discharge electrode (13) is near an end opening of purified gas gas outlet (2).
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Cited By (8)
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CN100457234C (en) * | 2006-11-23 | 2009-02-04 | 浙江大学 | Waste gas treating corona discharge method and apparatus homogeneously reinforced with heterogeneous catalyst |
CN101219771B (en) * | 2008-01-18 | 2010-06-02 | 中国科学院广州能源研究所 | Plasma diffraction electrode |
CN101975334A (en) * | 2010-09-29 | 2011-02-16 | 华中科技大学 | Collection device of water vapor |
CN103263825A (en) * | 2013-05-15 | 2013-08-28 | 华南农业大学 | Plasma coupled photo-catalysis method and system for removing ethylene in fresh-keeping storehouse of vegetables and fruits |
CN103599696A (en) * | 2013-10-31 | 2014-02-26 | 浙江大学 | Method and reactor for catalytic degradation of gas-phase organic pollutants by external DC voltage |
CN106069420A (en) * | 2016-06-14 | 2016-11-09 | 中国科学院上海光学精密机械研究所 | The device of corona induction condensation vapor and implementation thereof |
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CN100457234C (en) * | 2006-11-23 | 2009-02-04 | 浙江大学 | Waste gas treating corona discharge method and apparatus homogeneously reinforced with heterogeneous catalyst |
CN101219771B (en) * | 2008-01-18 | 2010-06-02 | 中国科学院广州能源研究所 | Plasma diffraction electrode |
CN101975334A (en) * | 2010-09-29 | 2011-02-16 | 华中科技大学 | Collection device of water vapor |
CN101975334B (en) * | 2010-09-29 | 2013-02-13 | 华中科技大学 | Collection device of water vapor |
CN103263825A (en) * | 2013-05-15 | 2013-08-28 | 华南农业大学 | Plasma coupled photo-catalysis method and system for removing ethylene in fresh-keeping storehouse of vegetables and fruits |
CN103599696A (en) * | 2013-10-31 | 2014-02-26 | 浙江大学 | Method and reactor for catalytic degradation of gas-phase organic pollutants by external DC voltage |
CN103599696B (en) * | 2013-10-31 | 2015-04-15 | 浙江大学 | Method and reactor for catalytic degradation of gas-phase organic pollutants by external DC voltage |
CN106069420A (en) * | 2016-06-14 | 2016-11-09 | 中国科学院上海光学精密机械研究所 | The device of corona induction condensation vapor and implementation thereof |
CN107360659A (en) * | 2017-07-13 | 2017-11-17 | 珠海格力电器股份有限公司 | Plasma generator and purifier |
CN108993346A (en) * | 2018-08-10 | 2018-12-14 | 山东重山光电材料股份有限公司 | A kind of anion bromination reactor and its application |
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