CN100556509C - A kind of method and apparatus that from industrial organic exhaust gas, reclaims micro fine carbon dust - Google Patents
A kind of method and apparatus that from industrial organic exhaust gas, reclaims micro fine carbon dust Download PDFInfo
- Publication number
- CN100556509C CN100556509C CNB2007100527594A CN200710052759A CN100556509C CN 100556509 C CN100556509 C CN 100556509C CN B2007100527594 A CNB2007100527594 A CN B2007100527594A CN 200710052759 A CN200710052759 A CN 200710052759A CN 100556509 C CN100556509 C CN 100556509C
- Authority
- CN
- China
- Prior art keywords
- microwave
- exhaust gas
- plasma jet
- organic exhaust
- normal pressure
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
- Plasma Technology (AREA)
Abstract
The method that reclaims micro fine carbon dust from industrial organic exhaust gas provided by the invention is: utilize microwave excitation industrial organic exhaust gas discharge generation normal pressure microwave plasma jet, this jet through after the high-frequency induction heating with after cooling dome contacts, the carbon ion that is in activated state that contains in the jet or carbon atom are lost activity rapidly and form micro fine carbon dust, organic exhaust gas is broken down into innocuous gas simultaneously.Device provided by the invention is provided with normal pressure microwave plasma jet source, it comprises microwave source (1), microwave allotment and monitoring system (3), and waveguide plasma jet reaction chamber (5) and dress nozzle (12), microwave field compression enhancing screw rod (13), coupled antenna (15) and microwave choking structure (19) thereon; The gatherer (6) that also is provided with high-frequency induction heating coil (20) and constitutes by cooling dome (8) and cooling chamber (10).The present invention can finish the decomposition and separation treatment of industrial organic exhaust gas and reclaim micro fine carbon dust.
Description
Technical field
The present invention relates to atmospheric plasma application technology and industrial organic exhaust gas process field, particularly a kind of method and apparatus that utilizes normal pressure microwave plasma jet from industrial organic exhaust gas, to reclaim micro fine carbon dust.
Background technology
The gas that plasma is a kind of ionization is made up of electronics, ion and neutral particle, and macroscopic view is electroneutral, is called as material the 4th attitude that is different from solid, liquids and gases.At the beginning of human knowledge's plasma, just be widely used in processing, preparation and the field of environment protection of material.Be applied to the atmospheric plasma that is generally in environmental protection field at present, comprise forms such as radio frequency, electric arc, corona, dielectric barrier discharge, wherein outstanding with the treatment effect of plasma high-temperature pyrolysis oven, can there be hazard residue thorough decomposition of all solids pollutant.
In the processing of industrial waste gas, plasma commonly used has corona plasma and dielectric barrier discharge plasma, and efficient is low, the shortcoming of poor stability but exist.Simultaneously since industrial organic exhaust gas at the living radical that after the plasma disassociation, often contains a large amount of fluorine, chlorine, the contour oxidisability of oxygen, existing plasma treatment technology is difficult to high efficiency recovery simple substance product from industrial organic exhaust gas.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of method and apparatus that reclaims micro fine carbon dust from industrial organic exhaust gas, to overcome the deficiency that prior art exists.Active particle in the plasma that this method can produce industrial organic exhaust gas loses activity rapidly, obtain solid product, utilize the device of the principle design of this method can handle and obtain the byproduct micro fine carbon dust well to described industrial organic exhaust gas simultaneously.
The present invention adopts following technical scheme for solving its technical problem:
The present invention is to provide a kind of method of utilizing normal pressure microwave plasma jet from industrial organic exhaust gas, to reclaim micro fine carbon dust, that is: at first utilize the microwave excitation industrial organic exhaust gas discharge generation normal pressure microwave plasma jet of frequency for 2.45GHz or 0.915GHz, this normal pressure microwave plasma jet after frequency is the 50kHz-30MHz high-frequency induction heating with the cooling dome contact action of gatherer after, the carbon ion that is in activated state or the carbon atom that contain in the normal pressure microwave plasma jet lose activity rapidly, thereby the formation micro fine carbon dust, organic exhaust gas is decomposed and is processed into innocuous gas simultaneously.
The device that reclaims micro fine carbon dust from industrial organic exhaust gas provided by the invention is a kind of device that utilizes normal pressure microwave plasma jet to reclaim micro fine carbon dust from industrial organic exhaust gas, the gatherer that comprises atmospheric plasma jet source, high-frequency induction heating and band cooling dome, wherein: normal pressure microwave plasma jet source comprises microwave source, microwave allotment and monitoring system, waveguide plasma jet reaction chamber, and nozzle, microwave field compression enhancing screw rod, coupled antenna and microwave choking structure are housed on the waveguide plasma jet reaction chamber; High-frequency induction heating comprises the high-frequency induction heating coil; Gatherer is made of cooling dome and cooling chamber, and cooling dome and cooling chamber are processed by the metal that microwave is had shielding action, are connected with circulating cooling medium in it.
In the above-mentioned parts: the frequency that microwave source produces is that the microwave of 2.45GHz or 0.915GHz is input in the waveguide plasma jet reaction chamber after microwave allotment and monitoring system and quartz microwave window, microwave is set up highfield at the nozzle place that links to each other with coupled antenna, puncture is from the normal pressure microwave plasma jet of the industrial organic exhaust gas discharge generation of nozzle ejection, normal pressure microwave plasma jet after frequency is the 50kHz-30MHz high-frequency induction heating with the cooling dome effect, the carbon ion that is in activated state or the carbon atom that contain in the described plasma jet are lost activity rapidly, thereby form micro fine carbon dust.
The present invention compared with prior art, its beneficial effect mainly is: method provided by the invention can be finished the decomposition and separation treatment to industrial organic exhaust gas, and can prepare micro fine carbon dust from industrial organic exhaust gas, the particle diameter of micro fine carbon dust is 50nm-2 μ m.Device provided by the invention can be handled described industrial organic exhaust gas according to technological requirement well, and the rate of recovery of carbon can reach 80% in the industrial organic exhaust gas.
Description of drawings
Fig. 1 is the present invention reclaims the device of micro fine carbon dust from industrial organic exhaust gas a structural representation.
Fig. 2 is the structure enlarged drawing of waveguide plasma jet reaction chamber 5 among Fig. 1.
Fig. 3 be among Fig. 1 gatherer overlook enlarged drawing.
Among the figure: 1. microwave source; 2. waveguide adpting flange; 3. microwave is allocated and monitoring system; 4. quartz microwave window; 5. waveguide plasma jet reaction chamber; 6. gatherer; 7. circulating coolant enters the mouth; 8. cooling dome; 9. circulating coolant outlet; 10. cooling chamber; 11. normal pressure microwave plasma jet; 12. nozzle; 13. the microwave field compression strengthens screw rod; 14. the microwave field compression strengthens screw rod telescopic adjustment knob; 15. coupled antenna; 16. coupled antenna telescopic adjustment knob; 17. industrial organic exhaust gas inlet; 18. normal pressure microwave plasma jet exit; 19. microwave choking structure; 20. high-frequency induction heating coil.
The specific embodiment
The invention will be further described below in conjunction with embodiment and accompanying drawing, but do not limit the present invention.
The present invention is to provide a kind of method of utilizing normal pressure microwave plasma jet from industrial organic exhaust gas, to reclaim micro fine carbon dust, specifically: at first under atmospheric pressure utilize microwave excitation industrial organic exhaust gas discharge generation normal pressure microwave plasma jet, this normal pressure microwave plasma jet through after the high-frequency induction heating with the cooling dome contact action of gatherer after, the carbon ion that is in activated state or the carbon atom that contain in this jet lose activity rapidly, thereby form 50nm～2 μ m micro fine carbon dusts, organic exhaust gas is decomposed and is processed into innocuous gas simultaneously.
Above-mentioned industrial organic exhaust gas can be to contain industrial waste gases such as benzene, toluene, chlorobenzene, lower aliphatic hydrocarbon, aldehyde, alcohol or ketone.
The work of above-mentioned normal pressure microwave plasma jet under atmospheric pressure.The frequency of microwave can be 2.45GHz or 0.915GHz.The frequency range of the high frequency power that high-frequency induction heating is used is 50kHz-30MHz.
Said method provided by the invention comprises the contact action of cooling dome of high-frequency induction heating, plasma jet and gatherer of generation, the plasma jet of normal pressure microwave plasma jet, concrete steps following (referring to Fig. 1):
A. will be passed in the normal pressure microwave plasma fluidic device after the industrial organic exhaust gas compression, utilize the discharge of microwave energy excitation industrial organic exhaust gas, produce the atmospheric plasma jet.
Specifically: will be passed in the coupled antenna of hollow after the industrial organic exhaust gas compression, from nozzle 12 ejections, regulate microwave field compression enhancing screw rod 13 and stretch into the length of waveguide plasma jet reaction chamber 5 and the position of coupled antenna 15, regulate microwave allotment and monitoring system 3, thereby the discharge of excitation industrial organic exhaust gas produces normal pressure microwave plasma jet 11;
B. high-frequency induction heating heats normal pressure microwave plasma jet, improves the degree of ionization of industrial organic exhaust gas.
Specifically: utilize 20 pairs of normal pressure microwave plasmas of radio-frequency induction coil jet 11 to heat.
C. the normal pressure microwave plasma jet that contains a large amount of carbon ions and carbon atom is with after the cooling dome of gatherer contacts, and carbon ion and carbon atom lose activity rapidly, separate out from plasma, form micro fine carbon dust.
Specifically: normal pressure microwave plasma jet 11 is with after the cooling dome 8 of gatherer contacts, the carbon ion that is in activated state or the carbon atom that contain in the plasma jet lose activity rapidly, thereby the formation micro fine carbon dust, industrial waste gas is decomposed and is processed into innocuous gas simultaneously.
The present invention is to provide a kind of device that utilizes normal pressure microwave plasma jet from industrial organic exhaust gas, to reclaim micro fine carbon dust, the structure of this device is as depicted in figs. 1 and 2: the gatherer that comprises normal pressure microwave plasma jet source, high-frequency induction heating and band cooling dome, wherein: normal pressure microwave plasma jet source comprises microwave source 1, microwave allotment and monitoring system 3, waveguide plasma jet reaction chamber 5, and nozzle 12, microwave field compression enhancing screw rod 13, coupled antenna 15 and microwave choking structure 19 are housed on the waveguide plasma jet reaction chamber 5; High-frequency induction heating comprises high-frequency induction heating coil 20; Gatherer 6 is made of cooling dome 8 and cooling chamber 10, and cooling dome and cooling chamber have metals such as the copper of shielding action or stainless steel by microwave and process, and are connected with circulating cooling medium in it.The sidepiece of gatherer is provided with circulating coolant inlet 7 and circulating coolant outlet 9.
The annexation of above-mentioned parts is: regulation and control link to each other with the right-hand member of monitoring system 3 microwave source 1 with microwave by a waveguide adpting flange 2; The microwave regulation and control link to each other by the right-hand member of another waveguide adpting flange 2 with waveguide plasma jet reaction chamber 5 with the left end of monitoring system 3.Waveguide plasma jet reaction chamber 5 can be made of rectangular waveguide, for example: when microwave frequency is 2.45GHz, with BJ22 rectangular waveguide or BJ26 rectangular waveguide; When microwave frequency is 0.915GHz, use the BJ9 rectangular waveguide.
Separate with quartz microwave window 4 between waveguide plasma jet reaction chamber 5 and microwave regulation and control and the monitoring system 3, to guarantee that the regulation and control of microwave microwave and monitoring system 3 and microwave source 1 are not subjected to the pollution of industrial waste gas, on the waveguide plasma jet reaction chamber 5 microwave choking structure 19 is housed, the microwave field compression strengthens screw rod 13 and links to each other with microwave choking structure 19 by microwave field compression enhancing screw rod telescopic adjustment knob 14, and coupled antenna 15 links to each other with microwave choking structure 19 by coupled antenna telescopic adjustment knob 16.Have circular jet exit 18 on waveguide plasma jet reaction chamber 5 walls relative with nozzle 12.
The work relationship of above-mentioned parts is: the microwave that microwave source 1 produces is input in the waveguide plasma jet reaction chamber 5 after microwave allotment and monitoring system 3 and quartz microwave window 4, and the microwave field compression strengthens screw rod 13 and extend into length in the waveguide plasma jet reaction chamber 5 and can strengthen screw rod telescopic adjustment knob 14 by the microwave field compression and regulate; The position that coupled antenna 15 extend in the waveguide plasma jet reaction chamber 5 can be regulated by coupled antenna telescopic adjustment knob 16, microwave is set up highfield at nozzle 12 places that link to each other with coupled antenna, puncture is from the industrial organic exhaust gas discharge generation normal pressure microwave plasma jet 11 of nozzle ejection, cooling dome 8 effects of normal pressure microwave plasma jet after 20 heating of high-frequency induction heating coil and on the gatherer, the carbon ion that is in activated state or the carbon atom that contain in the normal pressure microwave plasma jet lose activity rapidly, thereby form micro fine carbon dust.
Circulating cooling medium can adopt the special-purpose refrigerant of cooling water or air-cooling system, and when adopting cooling water, the temperature range of cooling water is 5-15 ℃, and when adopting the special-purpose refrigerant of air-cooling system, the temperature range of refrigerant is-20-0 ℃.
The cover of cooling dome 8 is provided with equally distributed breeder tube (see figure 3).The distance of cooling dome 8 and normal pressure microwave plasma jet 11 can be regulated, and is beneficial to the carbon dust that obtains different-grain diameter like this.
The course of work of the present invention is: industrial organic exhaust gas is entered by industrial organic exhaust gas inlet 17 after compression, regulating the microwave field compression strengthens screw rod 13 and extend into length in the waveguide plasma jet reaction chamber 5 and coupled antenna 15 and extend into position in the waveguide plasma jet reaction chamber 5, regulate microwave allotment and monitoring system 3, make industrial organic exhaust gas discharge generation normal pressure microwave plasma jet 11, utilize 20 pairs of normal pressure microwave plasmas of high-frequency induction heating coil jet to heat, the height of regulating gatherer fully acts on cooling dome 8 and normal pressure microwave plasma jet, thereby obtains micro fine carbon dust in gatherer.
Claims (6)
1. method that from industrial organic exhaust gas, reclaims micro fine carbon dust, it is characterized in that a kind of method of utilizing normal pressure microwave plasma jet from industrial organic exhaust gas, to reclaim micro fine carbon dust, this method is: at first utilize the microwave excitation industrial organic exhaust gas discharge generation normal pressure microwave plasma jet of frequency for 2.45GHz or 0.915GHz, this normal pressure microwave plasma jet after frequency is the 50kHz-30MHz high-frequency induction heating with the cooling dome contact action of gatherer after, the carbon ion that is in activated state or the carbon atom that contain in the normal pressure microwave plasma jet lose activity rapidly, thereby the formation micro fine carbon dust, organic exhaust gas is decomposed and is processed into innocuous gas simultaneously.
2. the method that reclaims micro fine carbon dust from industrial organic exhaust gas according to claim 1, it is characterized in that: industrial organic exhaust gas is meant the industrial waste gas that contains benzene, toluene, chlorobenzene, lower aliphatic hydrocarbon, aldehyde, alcohol or ketone.
3. device that from industrial organic exhaust gas, reclaims micro fine carbon dust, it is characterized in that a kind of device that utilizes normal pressure microwave plasma jet from industrial organic exhaust gas, to reclaim micro fine carbon dust, this device comprises normal pressure microwave plasma jet source, the gatherer of high-frequency induction heating and band cooling dome, wherein: normal pressure microwave plasma jet source comprises microwave source (1), microwave allotment and monitoring system (3), waveguide plasma jet reaction chamber (5) is equipped with nozzle (12) on the waveguide plasma jet reaction chamber (5), the microwave field compression strengthens screw rod (13), coupled antenna (15) and microwave choking structure (19); High-frequency induction heating comprises high-frequency induction heating coil (20); Gatherer (6) is made of cooling dome (8) and cooling chamber (10), and cooling dome and cooling chamber are processed by the metal that microwave is had shielding action, are connected with circulating cooling medium in it,
In the above-mentioned parts: the frequency that microwave source (1) produces is that the microwave of 2.45GHz or 0.915GHz is input in the waveguide plasma jet reaction chamber (5) after microwave allotment and monitoring system (3) and quartz microwave window (4), microwave locates to set up highfield at the nozzle (12) that links to each other with coupled antenna (15), puncture is from the normal pressure microwave plasma jet (11) of the industrial organic exhaust gas discharge generation of nozzle ejection, normal pressure microwave plasma jet acts on cooling dome (8) after frequency is 50kHz-30MHz high-frequency induction heating coil (20) heating, the carbon ion that is in activated state or the carbon atom that contain in the normal pressure microwave plasma jet lose activity rapidly, thereby form micro fine carbon dust.
4. the device that reclaims micro fine carbon dust from industrial organic exhaust gas according to claim 3 is characterized in that waveguide plasma jet reaction chamber is made of rectangular waveguide, when microwave frequency is 2.45GHz, with BJ22 rectangular waveguide or BJ26 rectangular waveguide; Microwave frequency is 0.915GHz, uses the BJ9 rectangular waveguide.
5. the device that from industrial organic exhaust gas, reclaims micro fine carbon dust according to claim 3, it is characterized in that circulating cooling medium adopts cooling water or the special-purpose refrigerant of air-cooling system, when adopting cooling water, the temperature range of cooling water is 5-15 ℃, when adopting the special-purpose refrigerant of air-cooling system, the temperature range of refrigerant is-20-0 ℃.
6. the device that reclaims micro fine carbon dust from industrial organic exhaust gas according to claim 3 is characterized in that the distance between cooling dome (8) and normal pressure microwave plasma jet (11) is adjustable; The cover of this cooling dome is provided with equally distributed breeder tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100527594A CN100556509C (en) | 2007-07-17 | 2007-07-17 | A kind of method and apparatus that from industrial organic exhaust gas, reclaims micro fine carbon dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100527594A CN100556509C (en) | 2007-07-17 | 2007-07-17 | A kind of method and apparatus that from industrial organic exhaust gas, reclaims micro fine carbon dust |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101143294A CN101143294A (en) | 2008-03-19 |
| CN100556509C true CN100556509C (en) | 2009-11-04 |
Family
ID=39206132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100527594A Expired - Fee Related CN100556509C (en) | 2007-07-17 | 2007-07-17 | A kind of method and apparatus that from industrial organic exhaust gas, reclaims micro fine carbon dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100556509C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794146B (en) * | 2012-08-17 | 2013-12-11 | 清华大学 | Microwave plasma reaction device for preparing nano-material |
| CN106984147A (en) * | 2017-03-31 | 2017-07-28 | 武汉工程大学 | The device of industrial organic exhaust gas is handled based on microwave plasma method |
| CN107949145A (en) * | 2017-12-27 | 2018-04-20 | 长沙新材料产业研究院有限公司 | A kind of microwave-excited plasma device |
-
2007
- 2007-07-17 CN CNB2007100527594A patent/CN100556509C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101143294A (en) | 2008-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Recent advances in decomposition of the most potent greenhouse gas SF6 | |
| CN101279715B (en) | Device for removing volatile organic matter and generating hydrogen with non-equilibrium plasma | |
| CN100556509C (en) | A kind of method and apparatus that from industrial organic exhaust gas, reclaims micro fine carbon dust | |
| CN101394705A (en) | Apparatus for generating atmosphere pressure microwave glow plasma | |
| US11058984B2 (en) | Method for treating sulfur hexafluoride using radiation and apparatus for collecting and treating by-products | |
| KR101860633B1 (en) | Plasma and Catalyst Hybrid Dry Treating System and its operation method for Hazardous Gas | |
| CN103537245B (en) | A kind of Venturi ionization device for the preparation of hydroxyl radical free radical | |
| CN101733405B (en) | Preparation method of radio frequency glow discharge inductively coupled plasmas of nano powder material | |
| CN107708283A (en) | The temprature control method and equipment of a kind of microwave plasma | |
| CN201261716Y (en) | Device for removing volatile organic matter and generating hydrogen with non-equilibrium plasma at the same time | |
| CN201742637U (en) | Atmospheric pressure medium blocking-air cold plasma fluidizing device | |
| CN100556510C (en) | A kind of method that from industrial waste gas, reclaims fine silica flour or fine sulphur powder | |
| KR102251369B1 (en) | Removing system for hazardous gases using plasma and catalyst heated by induced electricity | |
| KR20140056690A (en) | Sf6 gas decomposition method | |
| CN201030286Y (en) | Low-temperature plasma industrial waste gas treatment apparatus | |
| CN216419352U (en) | Industrial fluorine-containing compound decomposition and application cyclic treatment equipment | |
| CN214009478U (en) | Plasma air purification device | |
| CN214437624U (en) | Kitchen oil smoke purification treatment device | |
| Feng et al. | Experimental study on in-situ decomposition of VOCs using microwave-induced metal discharge | |
| CN212119507U (en) | Plasma gas phase treatment device for fly ash | |
| Ananthapadmanabhan et al. | Influence of some process variables on plasma dissociation of zircon | |
| CN203971709U (en) | A kind of plasma waste gas treatment equipment | |
| WO2016074111A1 (en) | Temperature-controlled apparatus for hydrogen production by continuous decomposition of hydrogen sulfide | |
| JP2003019434A (en) | Method and apparatus for treating powder with plasma | |
| CN206701052U (en) | A kind of organic exhaust gas plasma treatment appts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20130717 |