CN1112229C - Method and device for treating organic pollution gas - Google Patents
Method and device for treating organic pollution gas Download PDFInfo
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- CN1112229C CN1112229C CN98112006A CN98112006A CN1112229C CN 1112229 C CN1112229 C CN 1112229C CN 98112006 A CN98112006 A CN 98112006A CN 98112006 A CN98112006 A CN 98112006A CN 1112229 C CN1112229 C CN 1112229C
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- voltolising
- reactor
- photo catalysis
- organic pollutant
- catalysis reactor
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Abstract
The present invention relates to a method and a device for combining the technology of silent discharge and photocatalysis to process organic pollution gas. The device is composed of a silent discharge power supply, a silent discharge electrode, an optical source, a photocatalyst and a reactor. The device can be in a detachable combination type or in an integrative combination type. After the molecules of organic pollutants are processed by silent discharge and photocatalysis, the molecules of the organic pollutants can be thoroughly decomposed into substances which are harmless to the environment. Thereby, the processing efficiency of the organic pollution gas is improved, the energy consumption of the processing is lowered, and the secondary pollution is avoided. Thus, the present invention completely satisfies the requirement of environmental protection.
Description
The present invention is a kind of 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 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 5～35Kv.
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
| 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℃ |
Benzene and air mixture reaction result in table 2. voltolising-photocatalysis split anabolic process
| 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, a kind of device 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 forms the integral type combination.
2, the device of improvement organic pollutant according to claim 1 is characterized in that voltolising power supply [7] can be that crest voltage is the 50-3500Hz sine wave of 5-35Kv.
3, the device of improvement organic pollutant according to claim 1, 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 device of improvement organic pollutant according to claim 1 is characterized in that light source [5] can be that wave-length coverage is the ultraviolet light of 254-380nm.
5, the device of improvement organic pollutant according to claim 1 is characterized in that photochemical catalyst [6] can be TiO
2, loaded V
2O
5, MoO
3Deng.
6, the device of improvement organic pollutant according to claim 1 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 device of claim 1,2,3,4,5 or 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 |
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|---|---|
| CN1235864A CN1235864A (en) | 1999-11-24 |
| CN1112229C true CN1112229C (en) | 2003-06-25 |
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|---|---|---|---|
| CN98112006A Expired - Fee Related CN1112229C (en) | 1998-05-15 | 1998-05-15 | Method and device for treating organic pollution gas |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441273C (en) * | 2004-09-30 | 2008-12-10 | 广东工业大学 | Photoelectricity catalytic reactor for degrading organic contaminant and degradation method |
| 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 |
| 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 |
| CN104923047B (en) * | 2015-06-16 | 2017-04-19 | 杭州博韵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 |
Citations (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 |
| CN1076139A (en) * | 1991-12-21 | 1993-09-15 | O·F·迪特里希 | Purification contains the method and the device thereof of gas, waste gas steam and the salt solution of undesirable chemical substance |
| WO1994012590A1 (en) * | 1992-11-24 | 1994-06-09 | Commonwealth Scientific And Industrial Research Organisation | Oxygen scavengers independent of transition metal catalysts |
| CN1114236A (en) * | 1995-04-10 | 1996-01-03 | 华中理工大学 | Discharging catalytic reduction process for desulphurizing smoke and apparatus thereof |
-
1998
- 1998-05-15 CN CN98112006A patent/CN1112229C/en not_active Expired - Fee Related
Patent Citations (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 |
| CN1076139A (en) * | 1991-12-21 | 1993-09-15 | O·F·迪特里希 | Purification contains the method and the device thereof of gas, waste gas steam and the salt solution of undesirable chemical substance |
| WO1994012590A1 (en) * | 1992-11-24 | 1994-06-09 | Commonwealth Scientific And Industrial Research Organisation | Oxygen scavengers independent of transition metal catalysts |
| CN1114236A (en) * | 1995-04-10 | 1996-01-03 | 华中理工大学 | Discharging catalytic reduction process for desulphurizing smoke and apparatus thereof |
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|---|---|
| CN1235864A (en) | 1999-11-24 |
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