CN107158909A - VOC removal device and minimizing technology in a kind of industrial waste gas - Google Patents
VOC removal device and minimizing technology in a kind of industrial waste gas Download PDFInfo
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- CN107158909A CN107158909A CN201710474203.8A CN201710474203A CN107158909A CN 107158909 A CN107158909 A CN 107158909A CN 201710474203 A CN201710474203 A CN 201710474203A CN 107158909 A CN107158909 A CN 107158909A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Dispersion Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The application provides the VOC removal device and minimizing technology in a kind of industrial waste gas, is made up of five big steps：Waste gas pretreatment, high-silica zeolite absorption, ozone oxidation, waste liquid outflow and clean gas discharge；This technological design is reasonable, technique is simple and convenient to operate, and can significantly remove VOC.
Description
Technical field
The invention belongs to Air Pollution Control field, and in particular to the VOC in a kind of industrial waste gas is gone
Except device and minimizing technology.
Background technology
Pollutant in air reaches that finite concentration will cause harm to people and animals and plants.And it is current either in oil
In the production processes such as chemical industry, coating, pharmaceutical synthesis, rubber, or the technique such as printing, baking vanish, the degreasing of electronic component, all can
Discharge the waste gas containing VOC such as benzene,toluene,xylene, methanol.These pernicious gases are most inflammable easy
Quick-fried, it largely discharges not only localized region ecological environment but also serious influence is generated to global ecological environment, is to cause
One of the reason for Atmospheric Photochemical Smog, greenhouse effects and depletion of the ozone layer.Meanwhile, the industry containing VOC
Waste gas is the polluter being detrimental to health again, is frequently accompanied by peculiar smell, stench and distributes in atmosphere, to the eye of people, nose, exhales
Inhaling road has stimulation, produces adverse effect to the internal organ such as the heart, lung, liver and nervous system, or even causes acute and chronic poisoning,
Can carcinogenic and mutagenesis.
The pollution of VOC is on the rise also increasingly to be paid attention to what people were endangered it, countries in the world phase
After having formulated a series of regulations, it is desirable to cut down the discharge capacity of VOC, therefore, seek VOC
The effective technology of improvement oneself turn into solve VOC pollution only way.At present, volatility organic waste is handled
The method of gas has absorption and sorption, condensation, embrane method, oxidation, biofiltration etc..Absorption and oxidation are all processing volatile organics
The common method of compound, but the two is combined research by few researchers, the present invention is inhaled using high-silica zeolite
Attached dose is gone the VOC handled in industrial waste gas to be removed again through catalytic ozonation.Compared to similar technique
More preferably, clearance is higher, can significantly cut down the discharge capacity of VOC for treatment effect.
The content of the invention
The technical problem of solution：The application is mainly the VOC proposed in a kind of industrial waste gas and removes dress
Put and minimizing technology, solve presence in the prior art can not regenerate, can not reuse, the skill such as complex operation and poor processing effect
Art problem.
Technical scheme：A kind of VOC removal device in industrial waste gas, the device by the first intake valve,
Water intaking valve, the second intake valve, stuffing hole, air outlet valve, overfall, outlet valve, filler supporting plate, spray equipment, high-silica zeolite
Fill area and water leg constitute composition, and the outlet valve is located at water leg side, and overfall is located at the top of water leg, and described first
Intake valve and the second intake valve are located above overfall, and spray equipment is located above the first intake valve and the second intake valve, spray
Device is fixedly connected with water intaking valve, and the filler supporting plate is located above spray equipment, and stuffing hole is located at the top of filler supporting plate,
The high-silica zeolite fill area is located above filler supporting plate, and air outlet valve is located above high-silica zeolite fill area.
It is used as a preferred technical solution of the present invention：High-silica zeolite is provided with the high-silica zeolite fill area.
It is used as a preferred technical solution of the present invention：First intake valve is connected with industrial waste gas.
It is used as a preferred technical solution of the present invention：Second intake valve is connected with ozone generator.
It is used as a preferred technical solution of the present invention：The water intaking valve is connected with leacheate.
It is used as a preferred technical solution of the present invention：VOC removal device in the industrial waste gas
Minimizing technology be：
The first step, waste gas pretreatment：The first intake valve is opened, pending industrial waste gas enters Industry Waste by the first intake valve
VOC removal device in gas, leacheate enters spray equipment by water intaking valve, opens spray equipment and removes
Suspended material in industrial waste gas, pretreated leacheate is flowed into water leg；
Second step, high-silica zeolite absorption：The industrial waste gas for removing suspended material by spray equipment continues to rise, and passes through height
Si molecular sieves fill area, in high-silica zeolite fill area the high-silica zeolite of filling as VOC adsorbent,
Absorption is through the VOC in the pretreated industrial waste gas of the first step；
3rd step, ozone oxidation：The second intake valve is opened, the ozone that ozone generator is produced is inhaled with second step by high-silica zeolite
Attached VOC reaction, VOC is transformed into low molecular compound in catalytic oxidation process
Carbon dioxide and water, while high-silica zeolite is regenerated；
4th step, waste liquid outflow：Industrial waste gas is produced after the VOC removal device processing in industrial waste gas
Raw waste liquid and water is flowed out by the outlet valve of water leg side, and when the waste liquid in water leg is not discharged in time, waste liquid is by overflowing
Head piece flows out；
5th step, gas discharge：Air outlet valve is opened, after the VOC removal device processing in industrial waste gas
Gas and carbon dioxide are discharged from air outlet valve.
Beneficial effect：VOC removal device and minimizing technology in a kind of herein described industrial waste gas are used
Above technical scheme compared with prior art, with following technique effect：
1st, solving traditional treatment method adsorbent can not regenerate, the problem of recycling, and compared to the more add operation of similar technique
Simple and direct, energy-conserving and environment-protective, treatment effect is more protruded；
2nd, Wet-type spray adsorbent equipment, the suspension that can effectively go in removing exhaust gas are used for acid, alkali waste gas and dust-laden exhaust gas
Matter；
3rd, avoid adsorbent in adsorption process to be blocked, improve Adsorption VOC effect；
4th, technological design is reasonable, it is easy to safeguard, the removal and absorption of the organic volume compound of volatility in industrial waste gas can be achieved
The regeneration of agent is reclaimed, and meets sustainable development, with good application value；
5th, the adsorbent used of described absorption VOC process is high-silica zeolite, and high-silica zeolite is one
The adsorbent with flame resistance, heat endurance and moisture-proof is planted, when handling VOC, can be inhaled as a kind of
During attached catalyst, the adsorbed VOC of catalytic ozonation, VOC passes through ozone
Oxidation effectively degraded, while high-silica zeolite is also regenerated, reduce the usage amount of adsorbent, greatly saved into
This；
6th, in the case of a high temperature, high-silica zeolite is during the VOC that catalytic ozonation is adsorbed, no
Can occur spontaneous combustion, in addition, high-silica zeolite is very high to VOC eliminating rate of absorption under dampness；
7th, obtained by analysis of experimental data, this technique reaches to the clearance of the VOC in industrial waste gas
More than 90%, and high-silica zeolite still remains outstanding adsorption effect after being regenerated through ozone, can recycle, significantly subtract
Cost is lacked.
Brief description of the drawings：
Fig. 1 be the application industrial waste gas in VOC removal device structural representation.
Description of reference numerals：1st, the first intake valve, 2, water intaking valve, the 3, second intake valve, 4, stuffing hole, 5, air outlet valve, 6,
Overfall, 7, outlet valve, 8, filler supporting plate, 9, spray equipment, 10, high-silica zeolite fill area, 11, water leg.
Embodiment
The embodiment of the present invention is described in further detail with reference to Figure of description：
Embodiment 1
Shown in as shown in Figure 1, the VOC removal device in a kind of industrial waste gas is by the first intake valve 1, water inlet
Valve 2, the second intake valve 3, stuffing hole 4, air outlet valve 5, overfall 6, outlet valve 7, filler supporting plate 8, spray equipment 9, high silicon point
Son sieve fill area 10 and the composition composition of water leg 11, the outlet valve 7 are located at the side of water leg 11, and the top of water leg 11 is provided with excessive
Head piece 6, the top of overfall 6 is provided with the first intake valve 1 and the second intake valve 3, and the first intake valve 1 is connected with industrial waste gas,
Second intake valve 3 is connected with ozone generator, and spray equipment 9 is provided with above intake valve, and spray equipment 9 is fixed with water intaking valve 2 to be connected
Connect, water intaking valve 2 is connected with leacheate, the top of spray equipment 9 is provided with filler supporting plate 8, the top of filler supporting plate 8, which is provided with, to be filled out
Expect hole 4, the high-silica zeolite fill area 10 is located in the top of filler supporting plate 8, high-silica zeolite fill area 10 and is provided with high silicon
Molecular sieve, air outlet valve 5 is provided with the top of high-silica zeolite fill area 10.
The minimizing technology of VOC removal device in industrial waste gas includes as follows：
The first step, waste gas pretreatment：The first intake valve 1 is opened, pending industrial waste gas enters industry by the first intake valve 1
VOC removal device in waste gas, leacheate enters spray equipment by water intaking valve 2, opens spray equipment 9
The suspended material in industrial waste gas is removed, prevents from blocking molecular sieve, influences its adsorption effect, pretreated leacheate is flowed into
In water leg 11.
Second step, high-silica zeolite absorption：The industrial waste gas for removing suspended material by spray equipment 9 continues to rise,
By high-silica zeolite fill area 10, the high-silica zeolite of filling is used as volatile organic compound in high-silica zeolite fill area 10
Thing adsorbent, is adsorbed through the VOC in the pretreated industrial waste gas of the first step.
3rd step, ozone oxidation：The second intake valve 3 is opened, the ozone that ozone generator is produced is with second step by high silicon point
The VOC reaction of son sieve absorption, VOC is transformed into low molecule in catalytic oxidation process
Compound carbon dioxide and water, while high-silica zeolite is regenerated.
4th step, waste liquid outflow：The VOC removal device processing that industrial waste gas passes through in industrial waste gas
The waste liquid and water produced afterwards is flowed out by the outlet valve 7 of the side of water leg 11, when the waste liquid in water leg 11 is not discharged in time,
Waste liquid is flowed out by overfall 6.
5th step, gas discharge：Air outlet valve 5 is opened, at the VOC removal device in industrial waste gas
Industrial waste gas and carbon dioxide after reason are discharged from air outlet valve 5.
This device is mainly the synergy in prominent high-silica zeolite absorption and ozone oxidation, by absorption-ozone
Oxidation, the middle VOC of industrial waste gas can reach more than 90% removal, in addition, the effect of absorption not by
To the influence of ozone oxidation, suction of the high-silica zeolite to the VOC in industrial waste gas after being regenerated through ozone oxidation
Attached effect remains to reach 92%-99%.
Solving traditional treatment method adsorbent can not regenerate, and the problem of recycling, and more be grasped compared to similar technique
Make simple and direct, energy-conserving and environment-protective, treatment effect is more protruded；Wet-type spray adsorbent equipment is used for acid, alkali waste gas and dust-laden exhaust gas,
The suspended material that can effectively go in removing exhaust gas；Avoid adsorbent in adsorption process to be blocked, improve Adsorption volatility
Organic compound effect；Technological design is reasonable, it is easy to safeguard, going for the organic volume compound of volatility in industrial waste gas can be achieved
Except the regeneration with adsorbent is reclaimed, meet sustainable development, with good application value；Described absorption volatility
The adsorbent used of organic compound process is high-silica zeolite, and high-silica zeolite is a kind of with flame resistance, heat endurance
With the adsorbent of moisture-proof, when handling VOC, a kind of adsorption catalyst, catalytic ozonation can be used as
During adsorbed VOC, VOC is effectively degraded by ozone oxidation, simultaneously
High-silica zeolite is also regenerated, and is reduced the usage amount of adsorbent, has greatly been saved cost；In the case of a high temperature, high silicon
During the VOC that catalytic ozonation is adsorbed spontaneous combustion will not occur for molecular sieve, in addition, in moist shape
High-silica zeolite is very high to VOC eliminating rate of absorption under state；Obtained by analysis of experimental data, this technique pair
The clearance of VOC in industrial waste gas has reached more than 90%, and high-silica zeolite after being regenerated through ozone
Outstanding adsorption effect is still remain, can recycle, significantly reduce cost.
Embodiments of the present invention are explained in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned implementation
Mode, can also be on the premise of present inventive concept not be departed from the knowledge that those of ordinary skill in the art possess
Make a variety of changes.
Claims (6)
1. the VOC removal device in a kind of industrial waste gas, it is characterised in that：The device is by the first intake valve
（1）, water intaking valve（2）, the second intake valve（3）, stuffing hole（4）, air outlet valve（5）, overfall（6）, outlet valve（7）, filler support
Plate（8）, spray equipment（9）, high-silica zeolite fill area（10）And water leg（11）Constitute composition, the outlet valve（7）It is located at
Water leg（11）Sideways, overfall（6）It is located at water leg（11）Top, first intake valve（1）With the second intake valve（3）If
In overfall（6）Top, spray equipment（9）It is located at the first intake valve（1）With the second intake valve（3）Top, spray equipment（9）With
Water intaking valve（2）It is fixedly connected, the filler supporting plate（8）It is located at spray equipment（9）Top, stuffing hole（4）It is located at filler support
Plate（8）Top, the high-silica zeolite fill area（10）It is located at filler supporting plate（8）Top, air outlet valve（5）It is located at high silicon molecule
Sieve fill area（10）Top.
2. the VOC removal device in industrial waste gas according to claim 1, it is characterised in that：It is described
High-silica zeolite fill area（10）It is interior to be provided with high-silica zeolite.
3. the VOC removal device in industrial waste gas according to claim 1, it is characterised in that：It is described
First intake valve（1）It is connected with industrial waste gas.
4. the VOC removal device in industrial waste gas according to claim 1, it is characterised in that：It is described
Second intake valve（3）It is connected with ozone generator.
5. the VOC removal device in industrial waste gas according to claim 1, it is characterised in that：It is described
Water intaking valve（2）It is connected with leacheate.
6. the minimizing technology of the VOC removal device in industrial waste gas described in a kind of claim 1, its feature
It is, comprises the following steps：
The first step, waste gas pretreatment：Open the first intake valve（1）, pending industrial waste gas passes through the first intake valve（1）Into
VOC removal device in industrial waste gas, leacheate is by water intaking valve（2）Enter spray equipment（9）, open
Spray equipment（9）The suspended material in industrial waste gas is removed, pretreated leacheate is flowed into water leg（11）In；
Second step, high-silica zeolite absorption：By spray equipment（9）The industrial waste gas for removing suspended material continues to rise, and leads to
Cross high-silica zeolite fill area（10）, high-silica zeolite fill area（10）The high-silica zeolite of interior filling is used as volatile organic
Compound adsorbent, is adsorbed through the VOC in the pretreated industrial waste gas of the first step；
3rd step, ozone oxidation：Open the second intake valve（3）, the ozone that ozone generator is produced is with second step by high silicon molecule
The VOC reaction of sieve absorption, VOC is transformed into degraded in catalytic oxidation process
Compound carbon dioxide and water, while high-silica zeolite is regenerated；
4th step, waste liquid outflow：Industrial waste gas is produced after the VOC removal device processing in industrial waste gas
Raw waste liquid and water are by water leg（11）The outlet valve of side（7）Outflow, works as water leg（11）In waste liquid do not discharge in time
When, waste liquid is by overfall（6）Outflow；
5th step, gas discharge：Open air outlet valve（5）, handled through the VOC removal device in industrial waste gas
Gas and carbon dioxide afterwards is from air outlet valve（5）Discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474203.8A CN107158909A (en) | 2017-06-21 | 2017-06-21 | VOC removal device and minimizing technology in a kind of industrial waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474203.8A CN107158909A (en) | 2017-06-21 | 2017-06-21 | VOC removal device and minimizing technology in a kind of industrial waste gas |
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| Publication Number | Publication Date |
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| CN107158909A true CN107158909A (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710474203.8A Pending CN107158909A (en) | 2017-06-21 | 2017-06-21 | VOC removal device and minimizing technology in a kind of industrial waste gas |
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| CN (1) | CN107158909A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079780A (en) * | 2017-12-13 | 2018-05-29 | 中国科学院青岛生物能源与过程研究所 | A kind of device and method of molecular sieve-ozone combination processing organic exhaust gas |
| CN110302647A (en) * | 2018-03-27 | 2019-10-08 | 深圳市创海森科技有限公司 | A kind of regenerative gas absorption decomposer |
| CN111514713A (en) * | 2020-03-26 | 2020-08-11 | 南京龙源环保有限公司 | Equipment and method for removing odor substances in flue gas |
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| CN204034530U (en) * | 2014-05-30 | 2014-12-24 | 珠海市一致电工有限公司 | Enameled wire baking waste gas cleaning system |
| CN104492255A (en) * | 2014-12-26 | 2015-04-08 | 中山大学 | Method for treating waste gas through adsorption-ozone-catalysis together with adsorption material in-situ regeneration |
| CN204485651U (en) * | 2014-12-26 | 2015-07-22 | 中山大学 | A kind of absorption-ozone catalytic is with sorbing material in-situ regeneration treatment system |
| CN105056726A (en) * | 2015-08-11 | 2015-11-18 | 东莞市博硕环境科技有限公司 | VOC (volatile organic compound) treatment system adopting ozone and micro-nano-bubbles |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204034530U (en) * | 2014-05-30 | 2014-12-24 | 珠海市一致电工有限公司 | Enameled wire baking waste gas cleaning system |
| CN104492255A (en) * | 2014-12-26 | 2015-04-08 | 中山大学 | Method for treating waste gas through adsorption-ozone-catalysis together with adsorption material in-situ regeneration |
| CN204485651U (en) * | 2014-12-26 | 2015-07-22 | 中山大学 | A kind of absorption-ozone catalytic is with sorbing material in-situ regeneration treatment system |
| CN105056726A (en) * | 2015-08-11 | 2015-11-18 | 东莞市博硕环境科技有限公司 | VOC (volatile organic compound) treatment system adopting ozone and micro-nano-bubbles |
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| Title |
|---|
| ZAITAN HICHAM等: "Application of high silica zeolite ZSM-5 in a hybrid treatment process based on sequential adsorption and ozonation for VOCs elimination", 《JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079780A (en) * | 2017-12-13 | 2018-05-29 | 中国科学院青岛生物能源与过程研究所 | A kind of device and method of molecular sieve-ozone combination processing organic exhaust gas |
| CN110302647A (en) * | 2018-03-27 | 2019-10-08 | 深圳市创海森科技有限公司 | A kind of regenerative gas absorption decomposer |
| CN111514713A (en) * | 2020-03-26 | 2020-08-11 | 南京龙源环保有限公司 | Equipment and method for removing odor substances in flue gas |
| CN111514713B (en) * | 2020-03-26 | 2024-01-19 | 国能龙源环保南京有限公司 | Equipment and method for removing peculiar smell substances in flue gas |
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Application publication date: 20170915 |
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