CN105251322A - Method for treating VOC substance with low temperature plasma - Google Patents
Method for treating VOC substance with low temperature plasma Download PDFInfo
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- CN105251322A CN105251322A CN201510695862.5A CN201510695862A CN105251322A CN 105251322 A CN105251322 A CN 105251322A CN 201510695862 A CN201510695862 A CN 201510695862A CN 105251322 A CN105251322 A CN 105251322A
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- oxidation
- temperature plasma
- waste gas
- low temperature
- treatment
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- 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
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- Treating Waste Gases (AREA)
Abstract
The invention relates to a method for treating VOC substance with low temperature plasma. The method comprises the following steps: (1) workshop exhaust gas containing benzene is subjected to oxidation treatment in low temperature plasma waste gas treatment equipment and an oxidation mixing reactor after subzero treatment, and a first stage oxidation treatment process is formed; (2) after first stage oxidation, exhaust gas enters a concentration induced draft fan through a fan, the exhaust gas enters an alkaline tower after mixed with original project exhaust gas, then the exhaust gas enters the low temperature plasma waste gas treatment equipment and the oxidation mixing reactor for oxidation treatment again, the oxidation mixing reactor produces enough gas mixed flow space, and second stage oxidation treatment is formed; exhaust gas subjected to the second stage oxidation treatment enters an alkali oxidation tower through the induced draft fan and then is discharged up to standard after subjected to alkali wash in the alkaline tower. The VOC substance can be effectively removed with the method, and the process is simple and easy to control.
Description
Technical field
The present invention relates to a kind of method of Low Temperature Plasma Treating VOC material, belong to the technical field of VOC substance processing method.
Background technology
VOC material refers to volatile organic matter matter, causes great injury to human body.The technique removing VOC material in prior art is very complicated, and can not remove VOC material completely.Therefore, the present invention is proposed.
Summary of the invention
For the above-mentioned technical problem of prior art, the object of this invention is to provide a kind of method of Low Temperature Plasma Treating VOC material, can effectively remove VOC material, and technique simply, easily controls.
For achieving the above object, the present invention is achieved by the following technical solutions:
A method for Low Temperature Plasma Treating VOC material, comprises the following steps:
(1) containing benzene house exhaust after subzero treatment, then carry out oxidation processes in low-temperature plasma waste gas treatment equipment and oxidation mixing reactor, form stair oxidation treatment process;
(2) stair oxidation process terminate after waste gas enter concentrated air-introduced machine by blower fan, caustic wash tower is entered after mixing with former project waste gas, and then enter low-temperature plasma waste gas treatment equipment and oxidation mixing reactor in carry out oxidation processes, oxidation mixing reactor produces abundant gas mixed flow space, forms secondary oxidative treatments;
(3) waste gas after secondary oxidative treatments enters oxidation washing tower (for removing CO2) by air-introduced machine, then to enter in caustic wash tower qualified discharge after alkali cleaning.
Described low-temperature plasma waste gas treatment equipment excites and generates the strong high activity species of electronics, ion, free radical, neutral particle and ground state oxygen atom O, these high energy, high activity species overcome the obstacle on energy rank, the molecule of gas with foreign flavor is repeatedly bombarded with the speed of 3,000,000 times-3,000 ten thousand times per second, various compositions in deexcitation, ionization, cracking waste gas, thus generation chemical reaction, make the foul gas molecular scission of quite stable originally in air-flow, impel vapor reaction to carry out fast, finally generate harmless products.
Subzero treatment in described step (1) comprises preliminary condensation and condensation.
The temperature of described preliminary condensation is 7 DEG C, and the temperature of described condensation is-50 DEG C.
In described step (1), the oxidation material that in oxidation mixing reactor, plasma produces at least contacts 10 seconds.
In described waste gas, the initial concentration of benzene is 19074.1mg/m
3, the benzene concentration after subzero treatment is 3600mg/m
3, tolerance is 45m
3/ h.
The total blast volume of described blower fan is 21723m
3/ h.
Beneficial effect of the present invention is as follows:
The method of Low Temperature Plasma Treating VOC material of the present invention, after waste gas enters former project exhaust treatment system, the platform of original plasma purifier is replaced by the combination of superfine environment-friendlyanti-explosion anti-explosion type low-temperature plasma waste gas treatment equipment and oxidation mixing reactor, effectively eliminate VOC material, reach the standard of environmental protection.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
As shown in Figure 1, the method for a kind of Low Temperature Plasma Treating VOC material of the present invention, comprises the following steps:
(1) containing benzene house exhaust after subzero treatment, then carry out oxidation processes in low-temperature plasma waste gas treatment equipment and oxidation mixing reactor, form stair oxidation treatment process;
Subzero treatment herein comprises the preliminary condensation of 7 DEG C and the condensation of-50 DEG C, and the oxidation material that in oxidation mixing reactor, plasma produces at least contacts 10 seconds.
Low-temperature plasma waste gas treatment equipment herein excites and generates the strong high activity species of electronics, ion, free radical, neutral particle and ground state oxygen atom O, these high energy, high activity species overcome the obstacle on energy rank, the molecule of gas with foreign flavor is repeatedly bombarded with the speed of 3,000,000 times-3,000 ten thousand times per second, various compositions in deexcitation, ionization, cracking waste gas, thus generation chemical reaction, make the foul gas molecular scission of quite stable originally in air-flow, impel vapor reaction to carry out fast, finally generate harmless products.
(2) stair oxidation process terminate after waste gas enter concentrated air-introduced machine by blower fan, caustic wash tower is entered after mixing with former project waste gas, and then enter low-temperature plasma waste gas treatment equipment and oxidation mixing reactor in carry out oxidation processes, oxidation mixing reactor produces abundant gas mixed flow space, forms secondary oxidative treatments;
(3) waste gas after secondary oxidative treatments enters oxidation washing tower (for removing CO2) by air-introduced machine, then to enter in caustic wash tower qualified discharge after alkali cleaning.
In the present invention, in waste gas, the initial concentration of benzene is 19074.1mg/m
3, the benzene concentration after subzero treatment is 3600mg/m
3, tolerance is 45m
3/ h.The total blast volume of blower fan is 21723m
3/ h.
The method of Low Temperature Plasma Treating VOC material of the present invention, after waste gas enters former project exhaust treatment system, the platform of original plasma purifier is replaced by the combination of superfine environment-friendlyanti-explosion anti-explosion type low-temperature plasma waste gas treatment equipment and oxidation mixing reactor, effectively eliminate VOC material, reach the standard of environmental protection.
Above-described embodiment only illustrates inventive concept of the present invention for explaining, but not the restriction to rights protection of the present invention, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should fall into protection scope of the present invention.
Claims (7)
1. a method for Low Temperature Plasma Treating VOC material, is characterized in that comprising the following steps:
(1) containing benzene house exhaust after subzero treatment, then carry out oxidation processes in low-temperature plasma waste gas treatment equipment and oxidation mixing reactor, form stair oxidation treatment process;
(2) stair oxidation process terminate after waste gas enter concentrated air-introduced machine by blower fan, caustic wash tower is entered after mixing with former project waste gas, and then enter low-temperature plasma waste gas treatment equipment and oxidation mixing reactor in carry out oxidation processes, oxidation mixing reactor produces abundant gas mixed flow space, forms secondary oxidative treatments;
(3) waste gas after secondary oxidative treatments enters oxidation washing tower (for removing CO2) by air-introduced machine, then to enter in caustic wash tower qualified discharge after alkali cleaning.
2. the method for Low Temperature Plasma Treating VOC material as claimed in claim 1, is characterized in that:
Described low-temperature plasma waste gas treatment equipment excites and generates the strong high activity species of electronics, ion, free radical, neutral particle and ground state oxygen atom O, these high energy, high activity species overcome the obstacle on energy rank, the molecule of gas with foreign flavor is repeatedly bombarded with the speed of 3,000,000 times-3,000 ten thousand times per second, various compositions in deexcitation, ionization, cracking waste gas, thus generation chemical reaction, make the foul gas molecular scission of quite stable originally in air-flow, impel vapor reaction to carry out fast, finally generate harmless products.
3. the method for Low Temperature Plasma Treating VOC material as claimed in claim 1, is characterized in that: the subzero treatment in described step (1) comprises preliminary condensation and condensation.
4. the method for Low Temperature Plasma Treating VOC material as claimed in claim 3, is characterized in that: the temperature of described preliminary condensation is 7 DEG C, and the temperature of described condensation is-50 DEG C.
5. the method for Low Temperature Plasma Treating VOC material as claimed in claim 1, is characterized in that:
In described step (1), the oxidation material that in oxidation mixing reactor, plasma produces at least contacts 10 seconds.
6. the method for Low Temperature Plasma Treating VOC material as claimed in claim 1, is characterized in that: in described waste gas, the initial concentration of benzene is 19074.1mg/m
3, the benzene concentration after subzero treatment is 3600mg/m
3, tolerance is 45m
3/ h.
7. the method for Low Temperature Plasma Treating VOC material as claimed in claim 1, is characterized in that: the total blast volume of described blower fan is 21723m
3/ h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695862.5A CN105251322A (en) | 2015-10-23 | 2015-10-23 | Method for treating VOC substance with low temperature plasma |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695862.5A CN105251322A (en) | 2015-10-23 | 2015-10-23 | Method for treating VOC substance with low temperature plasma |
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| Publication Number | Publication Date |
|---|---|
| CN105251322A true CN105251322A (en) | 2016-01-20 |
Family
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| CN201510695862.5A Pending CN105251322A (en) | 2015-10-23 | 2015-10-23 | Method for treating VOC substance with low temperature plasma |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730975A (en) * | 2017-02-03 | 2017-05-31 | 盐城工学院 | A kind of VOC emission-control equipments and VOC exhaust treatment systems |
| CN106807191A (en) * | 2017-02-22 | 2017-06-09 | 郭满强 | One kind is for processing VOC gas method for pyrolysis |
| CN107469506A (en) * | 2016-06-07 | 2017-12-15 | 中国石油化工股份有限公司 | The method and device of low temperature plasma pyrolysis oxidization reactor for treatment foul waste gas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0473327A1 (en) * | 1990-08-31 | 1992-03-04 | United Kingdom Atomic Energy Authority | Gas stream treatment |
| CN1428185A (en) * | 2001-12-28 | 2003-07-09 | 财团法人工业技术研究院 | Treatment equipment for organic waste gas containing VOC and its method |
| CN103055675A (en) * | 2013-01-18 | 2013-04-24 | 大恩(天津)环境技术研发有限公司 | Industrial smoke comprehensive treatment system and method based on advanced oxidation |
| CN204073809U (en) * | 2014-09-28 | 2015-01-07 | 福州闽创环保科技有限公司 | Low-temperature plasma industrial |
-
2015
- 2015-10-23 CN CN201510695862.5A patent/CN105251322A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0473327A1 (en) * | 1990-08-31 | 1992-03-04 | United Kingdom Atomic Energy Authority | Gas stream treatment |
| CN1428185A (en) * | 2001-12-28 | 2003-07-09 | 财团法人工业技术研究院 | Treatment equipment for organic waste gas containing VOC and its method |
| CN103055675A (en) * | 2013-01-18 | 2013-04-24 | 大恩(天津)环境技术研发有限公司 | Industrial smoke comprehensive treatment system and method based on advanced oxidation |
| CN204073809U (en) * | 2014-09-28 | 2015-01-07 | 福州闽创环保科技有限公司 | Low-temperature plasma industrial |
Non-Patent Citations (1)
| Title |
|---|
| 宁平 等: "《工业废气液相催化氧化净化技术》", 31 May 2012 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107469506A (en) * | 2016-06-07 | 2017-12-15 | 中国石油化工股份有限公司 | The method and device of low temperature plasma pyrolysis oxidization reactor for treatment foul waste gas |
| CN106730975A (en) * | 2017-02-03 | 2017-05-31 | 盐城工学院 | A kind of VOC emission-control equipments and VOC exhaust treatment systems |
| CN106807191A (en) * | 2017-02-22 | 2017-06-09 | 郭满强 | One kind is for processing VOC gas method for pyrolysis |
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Application publication date: 20160120 |