CN1235864A - Method and device for treating organic pollution gas - Google Patents
Method and device for treating organic pollution gas Download PDFInfo
- Publication number
- CN1235864A CN1235864A CN 98112006 CN98112006A CN1235864A CN 1235864 A CN1235864 A CN 1235864A CN 98112006 CN98112006 CN 98112006 CN 98112006 A CN98112006 A CN 98112006A CN 1235864 A CN1235864 A CN 1235864A
- Authority
- CN
- China
- Prior art keywords
- voltolising
- reactor
- photo catalysis
- organic pollutant
- catalysis reactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000001699 photocatalysis Effects 0.000 claims abstract description 33
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 22
- 238000007146 photocatalysis Methods 0.000 claims description 34
- 239000003054 catalyst Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000011941 photocatalyst Substances 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- 239000000543 intermediate Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000001195 anabolic effect Effects 0.000 description 2
- KSMVZQYAVGTKIV-UHFFFAOYSA-N decanal Chemical compound CCCCCCCCCC=O KSMVZQYAVGTKIV-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- JARKCYVAAOWBJS-UHFFFAOYSA-N hexanal Chemical compound CCCCCC=O JARKCYVAAOWBJS-UHFFFAOYSA-N 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- FXHGMKSSBGDXIY-UHFFFAOYSA-N heptanal Chemical compound CCCCCCC=O FXHGMKSSBGDXIY-UHFFFAOYSA-N 0.000 description 1
- GYHFUZHODSMOHU-UHFFFAOYSA-N nonanal Chemical compound CCCCCCCCC=O GYHFUZHODSMOHU-UHFFFAOYSA-N 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The present invention treats organic pollutant gas through combined silent discharge and photocatalytic process. The treating device consists of silent discharge power source, silent discharge electrode, light source, photocatalyst and reactor, and may be a separated combination or an integrated one. Through silent discharge and photocatalytic treatment, the organic pollutant gas is decomposed completely into matter unharumful to environment. The present invention has high treatment efficiency and low treatment power consumption, and can meet the requirement for environment protection.
Description
The present invention is a kind of method and device of administering organic pollutant, belongs to plasma and photochemistry field, particularly field of environment protection.
Atmosphere and groundwater quality pollute has become global serious public hazards, and various countries also more and more pay attention to control atmosphere pollution.For organic pollutant, can adopt voltolising technology to handle.The voltolising process can produce a large amount of high reaction activity species under normal temperature and pressure conditions, thereby can utilize these high reaction activity species to destroy organic pollutant molecule.But in the ordinary course of things, when adopting voltolising technology to administer organic pollutant separately, the organic contamination molecule thoroughly is not decomposed into the material of environmental sound sometimes, but rests on the organic intermediate stage, thereby might cause secondary pollution.For example, researchers such as U.S. Los Alamos National Laboratory study in the voltolising organic pollution alkenyl halide process, find that organic pollution not by permineralization, can detect the kind accessory substance coldest days of the year end at least.(《Plasma?Science?and?the?Environment》,Editors:Wallace?Manheimer；Linda?E.Sugiyama＆Thomas?H.Stix,American?Instituteof?Physics.Woodbury,New?York,1977,p209-298)
The objective of the invention is to make full use of the high activity species that produce in the voltolising process; make it under temperate condition, further decompose organic intermediate; thereby realize under low energy consumption, the short flow process organic pollutant molecule thoroughly being decomposed into the material of environmental sound; clean emission, the protection environment.
Purpose of the present invention can realize by following method and apparatus:
Voltolising and photocatalysis process combination are got up, its combination can be, by voltolising power supply [7] with the photocatalysis apparatus that voltolising reactor [8] the voltolising device of forming and the photo catalysis reactor [9] that light source [5], photochemical catalyst [6] are housed of two voltolising electrodes [3], [4] form is housed connects, and become split type combination; Also can be with two voltolising electrodes [3], [4], light source [5], photochemical catalyst [6] is contained in voltolising/photo catalysis reactor [10], adds voltolising power supply [7] and becomes the voltolising/photocatalysis apparatus of integral type combination.
Voltolising power supply [7] can be that crest voltage is 50～3500Hz sine wave or short pulse and the direct current of 5～35Ky.
Voltolising electrode [3], [4] material can be copper, stainless steel, aluminium and silver, and electrode form can be flat board, cylinder or thread spiral, and the dielectric material on coated electrode surface can be quartz, glass, mica, polytetrafluoroethylene (PTFE).
Light source [5] can be that wave-length coverage is the uviol lamp of 254nm～380nm according to the catalyst that adopts.
Photochemical catalyst [6] can be TiO
2, SiO
2The V that supports
2O
3, MoO
3Deng the n type semiconductor oxide.
Voltolising reactor [8], photo catalysis reactor [9] and voltolising photo catalysis reactor [10] can adopt single or multiple tubular types or flat-plate reactor.
Voltolising electrode [3], [4] are contained in respectively on the inner and outer pipe of voltolising reactor [8] or voltolising/photo catalysis reactor [10], and are connected with voltolising power supply [7] respectively; Light source [5] and photochemical catalyst [6] are contained in respectively between the interior pipe and inner and outer pipes of photo catalysis reactor [9] or voltolising/photo catalysis reactor [10].
Further specify the present invention below in conjunction with accompanying drawing.
Fig. 1 is a split type combination schematic diagram of the present invention.
Fig. 2 is two kinds of schematic diagrames of A, B of integral type combination of the present invention.
Embodiments of the invention.
In Fig. 1, voltolising electrode [3] and [4] are contained in respectively on the inner and outer pipe of voltolising reactor [8], and be connected with voltolising power supply [7] respectively, light source [5] and photochemical catalyst [6] are contained in respectively in the interior pipe of photo catalysis reactor [9] and between inner and outer pipes, and voltolising reactor [8] and photo catalysis reactor [9] are together in series.[1] enters the interior pipe of voltolising reactor [8] to organic pollutant from the gas access, enter outer tube again, in inner and outer pipe, accept simultaneously voltolising, after wherein organic pollutant molecule is resolved into organic intermediate by the high activity species, enter photo catalysis reactor [9] again, accept illumination this moment, and under the catalysis of photochemical catalyst [6], organic intermediate is further resolved into the material of environmental sound by the high activity species, enters atmosphere through gas vent [2] again.
Among Fig. 2 A, voltolising electrode [3] and [4] are contained in respectively on the inner and outer pipe of voltolising/photo catalysis reactor [10] bottom, and be connected with voltolising power supply [7] respectively, light source [5] and photochemical catalyst [6] are contained in respectively in the interior pipe on voltolising/photo catalysis reactor [10] top and between inner and outer pipes.
Organic pollutant enters the bottom of voltolising/photo catalysis reactor [10] outer tube from the gas access [1] of lower end, and after accepting voltolising, enter top again, accept illumination and photocatalysis, organic pollutant molecule is thoroughly decomposed after gas vent [2] enters atmosphere.
Thread screw electrode of voltolising [3] and cylinder electrode [4] are contained in respectively on the inner and outer pipe of voltolising/photo catalysis reactor [10] among Fig. 2 B, and be connected with voltolising power supply [7] respectively, light source [5] and photochemical catalyst [6] are contained in respectively in the interior pipe of voltolising/photo catalysis reactor [10] and between inner and outer pipes.
[1] enters voltolising/photo catalysis reactor [10] to organic pollutant from the gas access, accepts voltolising and photocatalysis treatment simultaneously, and organic pollutant molecule is thoroughly decomposed after gas vent [2] enters atmosphere.Effect of the present invention sees Table 1 and table 2.
Benzene and air mixture reaction condition in table 1. voltolising-photocatalysis split anabolic process
Benzene and air mixture reaction result in table 2. voltolising-photocatalysis split anabolic process
| Voltolising | Photocatalysis | The gaseous mixture reaction condition | |||
| Power supply | 50Hz 9000v | Light source | The 4W ultraviolet | Gas flow rate | 14ml/min |
| Electrode material | Copper sheet | Photochemical catalyst | TiO 2Particulate | Reaction temperature | 16-40℃ |
| Use | Inlet benzene content (ppm) | Outlet benzene content (ppm) | The intermediate that look-the matter coupling analyzes |
| Voltolising is used separately | ??497.15 | ???10.14 | Nine kinds of possible intermediates such as hexanal, enanthaldehyde, aldehyde C-9, capraldehyde |
| Voltolising-photocatalysis split combination | ??497.15 | Can't check | Can't check |
From table 2, as seen, use method of the present invention and device thoroughly decomposing organic pollutant molecule and intermediate, realize the purpose of environmental protection.And use voltolising technology separately, and residual organic pollution is not only arranged, and have intermediate to emit, can not satisfy environmental protection requirement.
Claims (7)
1. method and apparatus of administering organic pollutant, it is characterized in that voltolising and photocatalysis process combination, its compound mode is: by voltolising power supply [7] with two voltolising electrodes [3] are housed, [4] the voltolising device that voltolising reactor [8] is formed with by light source [5] is housed, the photocatalysis apparatus that the photo catalysis reactor [9] of photochemical catalyst [6] the is formed split type combination that is in series, also can be with two voltolising electrodes [3], [4], light source [5], photochemical catalyst [6] is contained in voltolising/photo catalysis reactor [10], adds voltolising power supply [7] and becomes integral type combination.
2. the method for improvement organic pollutant according to claim 1 and device is characterized in that voltolising power supply [7] can be that crest voltage is 50～3500Hz sine wave of 5～35Kv.
3. the method for improvement organic pollutant according to claim 1 and device, it is characterized in that voltolising electrode [3], [4] can be flat board, cylinder or thread spiral, material is copper, stainless steel, aluminium or silver, and the medium on coated electrode surface can be quartz, glass, mica, polytetrafluoroethylene (PTFE).
4. the method for improvement organic pollutant according to claim 1 and device is characterized in that light source [5] can be that wave-length coverage is the ultraviolet light of 254～380nm.
5. the method for improvement organic pollutant according to claim 1 and device is characterized in that photochemical catalyst [6] can be TiO
2, loaded V
2O
5, MoO
3Deng.
6. the method for improvement organic pollutant according to claim 1 and device is characterized in that voltolising reactor [8], photo catalysis reactor [9] and voltolising photo catalysis reactor [10] all can adopt the composite column tubular reactor.
7. according to the method and the device of claim 1,2,3,4,5,6 described improvement organic pollutants, it is characterized in that voltolising electrode [3] and [4] are contained in respectively on the inner and outer pipe of voltolising reactor [8] or voltolising/photo catalysis reactor [10], and be connected with voltolising power supply [7] respectively; Light source [5] and photochemical catalyst [6] are contained in respectively between the interior pipe and inner and outer pipes of photo catalysis reactor [9] or voltolising/photo catalysis reactor [10].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98112006A CN1112229C (en) | 1998-05-15 | 1998-05-15 | Method and device for treating organic pollution gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98112006A CN1112229C (en) | 1998-05-15 | 1998-05-15 | Method and device for treating organic pollution gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1235864A true CN1235864A (en) | 1999-11-24 |
| CN1112229C CN1112229C (en) | 2003-06-25 |
Family
ID=5221888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98112006A Expired - Fee Related CN1112229C (en) | 1998-05-15 | 1998-05-15 | Method and device for treating organic pollution gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1112229C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441273C (en) * | 2004-09-30 | 2008-12-10 | 广东工业大学 | Photocatalytic reactor and degradation method for degrading organic pollutants |
| CN102284472A (en) * | 2011-09-13 | 2011-12-21 | 杭州电子科技大学 | Method for harmlessly recycling and treating circuit boards by means of combining pyrolysis with plasma discharge |
| CN104069722A (en) * | 2014-05-22 | 2014-10-01 | 浙江大学 | Treatment device and method of trinity industrial source peculiar-smell waste gas |
| CN104923047A (en) * | 2015-06-16 | 2015-09-23 | 绍兴博易环保科技有限公司 | Industrial waste gas treatment equipment |
| US9656943B2 (en) | 2015-10-20 | 2017-05-23 | Chang Chun Plastics Co. Ltd. | Process for producing dimethyl carbonate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2588548A1 (en) * | 1985-10-11 | 1987-04-17 | Bernard Michel Louis | Water purification and reoxygenation process |
| SU1346215A1 (en) * | 1985-12-27 | 1987-10-23 | Дзержинский Филиал Государственного Научно-Исследовательского Института По Промышленной И Санитарной Очистке Газов | Method of cleaning flue gases from organic substances |
| DE4241451A1 (en) * | 1991-12-21 | 1993-12-16 | Franz Dietrich Oeste | Methods and devices for cleaning gases, exhaust gases, vapors and brines from undesirable chemical substances |
| JP2922306B2 (en) * | 1992-11-24 | 1999-07-19 | コモンウェルス サイエンティフィック アンド インダストリアル リサーチ オーガナイゼーション | Oxygen scavengers unrelated to transition metal catalysts |
| CN1114236A (en) * | 1995-04-10 | 1996-01-03 | 华中理工大学 | Flue gas discharge catalytic reduction desulfurization method and device |
-
1998
- 1998-05-15 CN CN98112006A patent/CN1112229C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441273C (en) * | 2004-09-30 | 2008-12-10 | 广东工业大学 | Photocatalytic reactor and degradation method for degrading organic pollutants |
| CN102284472A (en) * | 2011-09-13 | 2011-12-21 | 杭州电子科技大学 | Method for harmlessly recycling and treating circuit boards by means of combining pyrolysis with plasma discharge |
| CN104069722A (en) * | 2014-05-22 | 2014-10-01 | 浙江大学 | Treatment device and method of trinity industrial source peculiar-smell waste gas |
| CN104069722B (en) * | 2014-05-22 | 2016-05-11 | 浙江大学 | A kind of Trinity industrial source peculiar smell emission-control equipment and method |
| CN104923047A (en) * | 2015-06-16 | 2015-09-23 | 绍兴博易环保科技有限公司 | Industrial waste gas treatment equipment |
| US9656943B2 (en) | 2015-10-20 | 2017-05-23 | Chang Chun Plastics Co. Ltd. | Process for producing dimethyl carbonate |
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| Publication number | Publication date |
|---|---|
| CN1112229C (en) | 2003-06-25 |
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