CN113813781A - Purification device and purification method for simultaneously treating organic and inorganic mixed waste gas - Google Patents
Purification device and purification method for simultaneously treating organic and inorganic mixed waste gas Download PDFInfo
- Publication number
- CN113813781A CN113813781A CN202111134519.5A CN202111134519A CN113813781A CN 113813781 A CN113813781 A CN 113813781A CN 202111134519 A CN202111134519 A CN 202111134519A CN 113813781 A CN113813781 A CN 113813781A
- Authority
- CN
- China
- Prior art keywords
- waste gas
- purification
- catalytic oxidation
- organic
- electrode plate
- 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
Images
Classifications
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- 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
-
- 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
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/66—Ozone
-
- 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
-
- 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
Abstract
The invention discloses a purification device for simultaneously treating organic and inorganic mixed waste gas and a purification method thereof, wherein the device comprises a box body and a plurality of adsorption catalytic oxidation purification units; an internal bearing plate is fixed in the box body, and the box body is divided into a mixing chamber and a treatment chamber; one side of the box body mixing chamber is provided with a waste gas inlet; one side of the box body treatment chamber is provided with a waste gas outlet; the adsorption catalytic oxidation purification unit comprises a purification cylinder, a high-energy ion generation assembly, an organic waste gas adsorption catalytic oxidation layer and an inorganic waste gas adsorption layer; the high-energy ion generating assembly comprises an inner electrode plate, a dielectric layer, an outer electrode plate, an inner electrode joint, an outer electrode joint and a pulse type high-frequency high-voltage generator; the adsorption catalytic oxidation purification unit is arranged in the box body, the inner bearing plate is provided with a plurality of mounting openings, and the purification cylinder of each adsorption catalytic oxidation purification unit is inserted into the treatment chamber from the mounting openings. The invention has the advantages of scientific and reasonable structure, high purification efficiency and the like.
Description
Technical Field
The invention belongs to the field of waste gas purification, relates to an industrial mixed waste gas purification device, and particularly relates to a purification device and a purification method for simultaneously treating organic and inorganic mixed waste gas.
Background
Volatile Organic Compounds (VOCs) are air pollutants and have a boiling point of 50-260 ℃ at room temperature and normal pressure. Most VOCs not only cause ozone layer damage to the environment due to toxicity and carcinogenicity, but also cause NO pollution to the airxAnd SOxThe reaction forms photochemical smog and poses a threat to human health, and long-term exposure can cause irreversible damage. In the industrial production process, the generated VOCs waste gas has the characteristic of large air volume and low concentration, most of the waste gas has complex components and contains acidic waste gas, and the conventional waste gas treatment technology cannot treat the acidic waste gas and the organic waste gas at the same time, so how to remove the industrial mixed waste gas through technical development and how to develop, popularize and apply the waste gas treatment process which is high in purification efficiency and free of secondary pollution is urgent.
Such waste gases are usually passed through a process of further treatment of organic waste gases by alkali absorption + adsorption, photocatalysis or plasma. The process equipment occupies a large area, generates wastewater in the treatment process, needs frequent replacement of the adsorbent, and has the problems of high operating cost and large hazardous waste disposal quantity; the separate photocatalysis method and the plasma method have low treatment efficiency on waste gas and can generate secondary pollution problem of ozone.
The invention application with publication number CN 110841471A discloses an integrated multi-medium catalytic waste gas treatment device, which consists of an oxidation reaction tank, a photocatalyst recovery system, a circulating spray system, an absorption reactor, a dosing system, an ozone generation system and a UV catalytic system; the absorption reactor comprises a packing distribution layer and an ozone catalytic oxidation bed layer. The application also discloses a method of use: adding hydrogen peroxide or sodium hypochlorite into an oxidation reaction tank by a dosing system; waste gas enters the absorption reactor through the inlet and is mixed with ozone generated by the ozone generation system; the circulating spraying system atomizes the oxidation absorption liquid, and the oxidation absorption liquid passes through the filler distribution layer and the ozone catalytic oxidation bed layer and is discharged from an outlet after being purified; and opening the UV catalytic system, overflowing the treated oxidation liquid to a photocatalyst recovery system, pumping the recovered catalyst to an oxidation reaction tank, and spraying the supernatant into an absorption reactor through a circulating spraying system. The device set photocatalytic reaction, absorption reaction and ozone catalytic oxidation reaction technique can improve treatment efficiency, but the photocatalysis nano-particle catalyst of taking causes equipment to block up easily, takes hydrogen peroxide and sodium hypochlorite as the absorbent, corrodes equipment easily, leads to the higher scheduling problem of cost.
Disclosure of Invention
The invention aims to overcome the defects of complex equipment for treating inorganic waste gas and organic waste gas, high investment cost, low purification efficiency and secondary pollution in the prior art, and provides a purification device for simultaneously treating organic and inorganic mixed waste gas and a purification method thereof, which can effectively remove the inorganic waste gas and the organic waste gas, have simple equipment, high purification efficiency and no secondary pollution, completely decompose organic matters adsorbed in micropores of an adsorbent by using an adsorbent loaded with a catalyst under the action of high-energy ions, and prolong the service life of the adsorbent.
In order to achieve the above object, the present invention provides a purification apparatus for simultaneously treating organic-inorganic mixed exhaust gas, having the following features: comprises a box body and a plurality of adsorption catalytic oxidation purification units;
an internal bearing plate is fixed in the box body, and the box body is divided into an upper space and a lower space which are respectively a mixing chamber and a treatment chamber; one side of the box body mixing chamber is provided with a waste gas inlet; one side of the box body treatment chamber is provided with a waste gas outlet;
the adsorption catalytic oxidation purification unit comprises a purification cylinder, a high-energy ion generation assembly, an organic waste gas adsorption catalytic oxidation layer and an inorganic waste gas adsorption layer; the purifying cylinder consists of a cylinder body, an upper cover plate and a lower cover plate which are fixed at the upper end and the lower end of the cylinder body; the high-energy ion generating assembly comprises an inner electrode plate, a dielectric layer, an outer electrode plate, an inner electrode joint, an outer electrode joint and a pulse type high-frequency high-voltage generator; the inner electrode plate is cylindrical and is fixed in the purifying cylinder; the inner electrode plate is provided with a plurality of discharge tip bulges protruding outwards; the outer surface of the inner electrode plate is covered with a layer of dielectric material to form a dielectric layer; the outer electrode plate is cylindrical and is sleeved outside the inner electrode plate, and a space is reserved between the outer electrode plate and the dielectric layer to form an annular high-energy ion region; the inner electrode joint, the outer electrode joint and the pulse type high-frequency high-voltage generator are all fixed on an upper cover plate of the purifying cylinder; the inner electrode plate is connected with the inner electrode joint, the outer electrode plate is connected with the outer electrode joint, and the inner electrode joint and the outer electrode joint are connected with the pulse type high-frequency high-voltage generator;
the organic waste gas adsorption catalytic oxidation layer is composed of an adsorbent loading a catalyst, and the catalyst is a catalyst capable of reducing energy required by decomposition of VOCs; the inorganic waste gas adsorption layer is filled with one or more of an acidic waste gas adsorption material and a basic waste gas adsorption material and can be selected according to the properties of waste gas; the organic waste gas adsorption catalytic oxidation layer and the inorganic waste gas adsorption layer are sequentially arranged between the outer electrode plate and the purifying cylinder body from inside to outside;
the upper cover plate, the outer electrode plate and the purifying cylinder body of the purifying cylinder which correspond to the upper part of the high-energy ion area are provided with a plurality of purifying holes;
the adsorption catalytic oxidation purification unit is arranged in the box body, the inner bearing plate is provided with a plurality of mounting openings, and the purification cylinder of each adsorption catalytic oxidation purification unit is inserted into the treatment chamber from the mounting openings.
Further, the present invention provides a purification apparatus for simultaneously treating organic-inorganic mixed exhaust gas, which may further have the following features: the device also comprises a deep purification device; filling an ozone decomposition catalyst in the deep purification device; the deep purification device is fixed in the waste gas outlet.
Further, the present invention provides a purification apparatus for simultaneously treating organic-inorganic mixed exhaust gas, which may further have the following features: wherein, the top surface of box is detachable overhauls the apron.
Further, the present invention provides a purification apparatus for simultaneously treating organic-inorganic mixed exhaust gas, which may further have the following features: wherein, a portable handle is fixed on the upper cover plate of the purification cylinder of the adsorption catalytic oxidation purification unit.
Further, the present invention provides a purification apparatus for simultaneously treating organic-inorganic mixed exhaust gas, which may further have the following features: wherein, the waste gas outlet is positioned at the bottom of the side surface of the box body processing chamber.
Further, the present invention provides a purification apparatus for simultaneously treating organic-inorganic mixed exhaust gas, which may further have the following features: wherein, waste gas import and waste gas outlet are located on two relative sides of box.
Further, the present invention provides a purification apparatus for simultaneously treating organic-inorganic mixed exhaust gas, which may further have the following features: wherein, in the organic waste gas adsorption catalytic oxidation layer, the adsorbent is activated carbon, molecular sieve, activated carbon fiber, activated alumina or resin organic waste gas adsorption material.
Further, the present invention provides a purification apparatus for simultaneously treating organic-inorganic mixed exhaust gas, which may further have the following features: in the high-energy ion generating assembly, the medium material is quartz glass or enamel; the inner electrode plate and the outer electrode plate are made of stainless steel or carbon steel net structures.
Further, the present invention provides a purification apparatus for simultaneously treating organic-inorganic mixed exhaust gas, which may further have the following features: in the adsorption catalytic oxidation purification unit, the upper cover plate and the lower cover plate of the purification cylinder are made of enamel or quartz glass.
The invention also provides a purification method of the purification device for simultaneously treating the organic-inorganic mixed waste gas, which is characterized in that: comprises the following steps:
s1: industrial waste gas enters the mixing chamber through a waste gas inlet and then uniformly enters the adsorption catalytic oxidation purification unit, and organic components in the waste gas and the high-energy ion generation component generateThe high-energy ion reaction of (2), VOCs with lower decomposition energy are partially decomposed; the current of the pulse type high-frequency high-voltage generator is 0.25-0.45A, and the generation amount of high-energy ions is 3 multiplied by 1016～5×1016PCS/h；
S2: the waste gas enters an organic waste gas adsorption catalytic oxidation layer, the incompletely-reacted VOCs gas is adsorbed in the adsorbent micropore pore canal of the loaded catalyst, the contact time of the VOCs and the catalyst is prolonged, the energy required by the decomposition of the VOCs is reduced by the catalyst, and the undecomposed VOCs are further and completely decomposed into CO under the synergistic action of high-energy ions2And H2O；
S3: the waste gas (the inorganic waste gas left after the mixed waste gas is used for removing VOCs) passes through the inorganic waste gas adsorption layer to remove NOx、SO2、HCl、NH3And inorganic gases;
s4: after tertiary reaction, VOCs waste gas and inorganic waste gas are got rid of, and the ozone that high energy ion produced is decomposed through the deep purification device of exhaust outlet, avoids secondary pollution.
The invention has the beneficial effects that:
the invention relates to a purification device and a purification method for simultaneously treating organic and inorganic mixed waste gas, wherein a high-energy ion generation component electrode plate is designed in an adsorption catalytic oxidation purification unit, a pulse type high-frequency high-voltage generator is utilized, the electronic energy is up to more than 7ev, when the mixed waste gas enters a high-energy ion area in the middle of a filter cylinder, thousands of electric shocks are experienced in a reaction area, the number of discharge points is more than 10 times that of other structures in the same reactor volume, and the decomposition efficiency of VOCs is higher.
Secondly, according to the purification device for simultaneously treating the organic-inorganic mixed waste gas, the adsorbent is adopted to load the catalyst, and the large specific surface area characteristic of the adsorbent is utilized, so that the incompletely-reacted VOCs can be enriched in the adsorbent, the contact time of the incompletely-reacted VOCs and high-energy ions during discharge is prolonged, and in addition, the purification efficiency can be further improved under the synergistic effect of the catalyst.
The purification method for simultaneously treating the organic and inorganic mixed waste gas adopts a high-energy ion reaction process, an organic waste gas adsorption and catalysis process and an inorganic waste gas adsorption process which are integrated in an adsorption catalytic oxidation purification assembly, so that the equipment volume is greatly reduced, and the investment is reduced.
Drawings
FIG. 1 is a schematic view showing the construction of a purification apparatus for simultaneously treating organic-inorganic mixed exhaust gas;
FIG. 2 is a front view of an adsorption catalytic oxidation purification unit;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view C-C of FIG. 2;
FIG. 5 is a top view of an adsorption catalytic oxidation purification unit.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in figure 1, the invention provides a purification device for simultaneously treating organic and inorganic mixed waste gas, which comprises a box body 1 and a plurality of adsorption catalytic oxidation purification units 2.
An inner bearing plate 11 is fixed in the box body 1, and divides the box body 1 into an upper space and a lower space which are respectively a mixing chamber and a treatment chamber.
One side of the mixing chamber of the box body 1 is provided with a waste gas inlet 12. The exhaust gas inlet 12 communicates with the mixing chamber to achieve uniform distribution of the exhaust gas. One side of the processing chamber of the box body 1 is provided with a waste gas outlet 13.
Preferably, the exhaust gas outlet 13 is located at the bottom of the side of the process chamber of the housing 1. And an exhaust gas inlet 12 and an exhaust gas outlet 13 are provided on opposite sides of the case 1.
As shown in fig. 2 to 5, the adsorption catalytic oxidation purification unit 2 includes a purification cartridge 21, a high-energy ion generation unit 22, an organic exhaust gas adsorption catalytic oxidation layer 23, and an inorganic exhaust gas adsorption layer 24.
The purification cartridge 21 is composed of a cylindrical body 211, and an upper cover plate 212 and a lower cover plate 213 fixed to the upper and lower ends of the cylindrical body 211.
The high-energy ion generating assembly 22 includes an inner electrode plate 221, a dielectric layer 222, an outer electrode plate 223, an inner electrode tab 224, an outer electrode tab 225, and a pulsed high-frequency high-voltage generator 226.
The inner electrode plate 221 is cylindrical and fixed in the purification cartridge 21. The inner electrode plate 221 has a plurality of discharge tip protrusions uniformly distributed and protruding outward. The outer surface of the inner electrode plate 221 is coated with a dielectric material to form a dielectric layer 222, and the dielectric material separates the inner electrode plate 223 from the outer electrode plate 223. The outer electrode plate 223 is cylindrical and is sleeved outside the inner electrode plate 221, and a space is reserved between the outer electrode plate and the dielectric layer 222 to form an annular high-energy ion region.
The inner electrode connector 224, the outer electrode connector 225 and the pulse type high-frequency high-voltage generator 226 are fixed on the upper cover plate 212 of the purification cartridge 21. The inner electrode plate 221 is connected to an inner electrode connector 224, the outer electrode plate 223 is connected to an outer electrode connector 225, and the inner electrode connector 224 and the outer electrode connector 225 are connected to a pulse type high-frequency high-voltage generator 226.
When the high-energy ion generating assembly 22 works, the electron energy is up to more than 7ev, and VOCs (volatile organic compounds) can be decomposed into small molecular substances or CO2、H2O, and can generate O3And O is a substance having strong oxidizing property.
The upper cover plate 212 and the lower cover plate 213 of the purifying cylinder 21 are both made of enamel or quartz glass, and have the characteristics of strong oxidation resistance, corrosion resistance, good insulating property and the like; the medium material is quartz glass or enamel; the inner electrode plate 221 and the outer electrode plate 223 are made of stainless steel or carbon steel net structures, and have the advantages of good conductivity, fast heat dissipation and the like.
The organic exhaust gas adsorbing catalytic oxidation layer 23 is composed of an adsorbent supporting a catalyst, and the catalyst is a catalyst capable of reducing the energy required for decomposition of VOCs. The inorganic exhaust gas adsorption layer 24 is formed by filling one or more of an acidic exhaust gas adsorption material and a basic exhaust gas adsorption material, and can be selected according to the properties of exhaust gas. The organic waste gas adsorption catalytic oxidation layer 23 and the inorganic waste gas adsorption layer 24 are sequentially arranged between the outer electrode plate 223 and the purification cylinder body 211 from inside to outside.
In the organic waste gas adsorption catalytic oxidation layer 23, the adsorbent is activated carbon, molecular sieve, activated carbon fiber, activated alumina, resin organic waste gas adsorption material. The adsorbent is pretreated by sulfuric acid and potassium permanganate, and a catalyst consisting of manganese, copper, nickel and cobalt oxides is loaded on the adsorbent by an impregnation method.
After the waste gas is treated by the high-energy ion generating assembly 22, the incompletely reacted VOCs gas is absorbed in the microporous pore canal of the adsorbent loading the catalyst, so that the contact time of the VOCs and the catalyst is prolonged, the energy required by the decomposition of the VOCs is reduced by the catalyst, and the undecomposed VOCs are further and completely decomposed into CO under the synergistic action of the high-energy ions2And H2O。
The inorganic exhaust gas adsorbing layer 24 has an acidic exhaust gas adsorbing material and a basic exhaust gas adsorbing material, and may be selected and combined according to the exhaust gas components. Preferably, the replacement period of the inorganic exhaust gas adsorbing layer 24 is 1 to 1.5 times/a.
After the waste gas is treated by the high-energy ion generating assembly 22 and the organic waste gas adsorption catalytic oxidation layer 23, only inorganic waste gas is left, and the waste gas passes through the inorganic waste gas adsorption layer 24 and can be chemically reacted with active ingredients in the waste gas to generate a new neutral salt substance which is stored in the inorganic waste gas adsorption layer 24, so that NO is removedx、SO2、HCl、NH3And the like.
The upper cover plate 212, the outer electrode plate 223 and the purifying cylinder body 211 which correspond to the upper part of the high-energy ion area are provided with a plurality of through purifying holes, gas enters the high-energy ion area from the purifying holes of the upper cover plate 212, then sequentially passes through the organic waste gas adsorption catalytic oxidation layer 23 and the inorganic waste gas adsorption layer 24, and finally passes out of the cylinder body 211.
The adsorption catalytic oxidation purification unit 2 is arranged in the box body 1, the inner bearing plate 11 is provided with a plurality of mounting openings, and the purification cylinder 21 of each adsorption catalytic oxidation purification unit 2 is inserted into the treatment chamber from the mounting openings.
Further, the top surface of the box body 1 is a detachable access cover plate 14. Specifically, the maintenance cover plate 14 is connected with the equipment box body 1 through a one-way bolt, and is convenient to detach and maintain. The material of the box body 1 and the inspection cover plate 14 is carbon steel or stainless steel, preferably 304 stainless steel.
Further, a portable handle 214 is fixed on the upper cover plate 212 of the purification cylinder of the adsorption catalytic oxidation purification unit 2, so that the adsorption catalytic oxidation purification unit 2 can be lifted out of the box body 1 for maintenance or replacement.
The device also comprises a deep purification device 3. The air inlet surface and the air outlet surface of the deep purification device 3 adopt a net structure, and an ozone decomposition catalyst is filled in the deep purification device. The deep purification device 3 is fixed in the exhaust gas outlet 13, and can efficiently decompose the ozone which is generated by the high energy ion generating unit 22 and is not used.
The purification method of the device comprises the following steps:
s1: industrial waste gas enters the mixing chamber through the waste gas inlet 12 and then uniformly enters the adsorption catalytic oxidation purification unit 2, organic components in the waste gas react with high-energy ions generated by the high-energy ion generating assembly 22, and VOCs with lower decomposition energy are partially decomposed; the current of the pulse type high-frequency high-voltage generator is 0.25-0.45A, and the generation amount of high-energy ions is 3 multiplied by 1016～5×1016PCS/h。
S2: the waste gas enters the organic waste gas adsorption catalytic oxidation layer 23, the incompletely reacted VOCs gas is adsorbed in the adsorbent micropore pore canal of the loaded catalyst, the contact time of the VOCs and the catalyst is prolonged, the energy required by the decomposition of the VOCs is reduced by the catalyst, and the undecomposed VOCs are further and completely decomposed into CO under the synergistic action of high-energy ions2And H2O。
S3: the waste gas (the inorganic waste gas left after the mixed waste gas is used for removing VOCs) passes through the inorganic waste gas adsorption layer to remove NOx、SO2、HCl、NH3And the like.
S4: after the three-stage reaction, the VOCs waste gas and the inorganic waste gas are removed, and the ozone generated by the high-energy ion generation assembly 22 is decomposed through the deep purification device 3 at the waste gas outlet, so that the secondary pollution is avoided.
Continuously introducing mixed gas into a purification device for simultaneously treating organic and inorganic mixed waste gas, starting a pulse type high-frequency high-voltage generator after the adsorbent loaded with the catalyst is adsorbed and saturated, controlling the current of the pulse type high-frequency high-voltage generator, and carrying out 4 times of experiments in total, wherein the current of each time is 0.25A, 0.32A, 0.38A and 0.45A respectively.
Table 1 shows the data of the experimental results. The experimental results show that the import VOCsThe average concentration is 110mg/m3When the current amount is 0.25A, the amount of high-energy ions generated is 3.34X 1016PCS/h, the VOCs decomposition efficiency is 54.9%, along with the increase of current, the high-energy ion generation amount is increased, the decomposition effect is rapidly increased, and when the high-energy ion generation amount is increased to 4.38 multiplied by 1016And when PCS is used for one hour, the decomposition efficiency of VOCs reaches 90.3 percent.
TABLE 1 data of the results
Claims (10)
1. The utility model provides a purifier of simultaneous processing organic inorganic waste gas which characterized in that:
comprises a box body and a plurality of adsorption catalytic oxidation purification units;
an internal bearing plate is fixed in the box body, and the box body is divided into an upper space and a lower space which are respectively a mixing chamber and a treatment chamber;
one side of the box body mixing chamber is provided with a waste gas inlet; one side of the box body treatment chamber is provided with a waste gas outlet;
the adsorption catalytic oxidation purification unit comprises a purification cylinder, a high-energy ion generation assembly, an organic waste gas adsorption catalytic oxidation layer and an inorganic waste gas adsorption layer;
the purifying cylinder consists of a cylinder body, an upper cover plate and a lower cover plate which are fixed at the upper end and the lower end of the cylinder body;
the high-energy ion generating assembly comprises an inner electrode plate, a dielectric layer, an outer electrode plate, an inner electrode joint, an outer electrode joint and a pulse type high-frequency high-voltage generator;
the inner electrode plate is cylindrical and is fixed in the purifying cylinder; the inner electrode plate is provided with a plurality of discharge tip bulges protruding outwards;
the outer surface of the inner electrode plate is covered with a layer of dielectric material to form a dielectric layer;
the outer electrode plate is cylindrical and is sleeved outside the inner electrode plate, and a space is reserved between the outer electrode plate and the dielectric layer to form an annular high-energy ion region;
the inner electrode joint, the outer electrode joint and the pulse type high-frequency high-voltage generator are all fixed on an upper cover plate of the purifying cylinder; the inner electrode plate is connected with the inner electrode joint, the outer electrode plate is connected with the outer electrode joint, and the inner electrode joint and the outer electrode joint are connected with the pulse type high-frequency high-voltage generator;
the organic waste gas adsorption catalytic oxidation layer is composed of an adsorbent loaded with a catalyst; the inorganic waste gas adsorption layer is filled with one or more of an acidic waste gas adsorption material and an alkaline waste gas adsorption material; the organic waste gas adsorption catalytic oxidation layer and the inorganic waste gas adsorption layer are sequentially arranged between the outer electrode plate and the purifying cylinder body from inside to outside;
the upper cover plate, the outer electrode plate and the purifying cylinder body of the purifying cylinder which correspond to the upper part of the high-energy ion area are provided with a plurality of purifying holes;
the adsorption catalytic oxidation purification unit is arranged in the box body, the inner bearing plate is provided with a plurality of mounting openings, and the purification cylinder of each adsorption catalytic oxidation purification unit is inserted into the treatment chamber from the mounting openings.
2. The purification apparatus for simultaneously treating organic-inorganic hybrid exhaust gas according to claim 1, characterized in that:
the device also comprises a deep purification device;
filling an ozone decomposition catalyst in the deep purification device;
the deep purification device is fixed in the waste gas outlet.
3. The purification apparatus for simultaneously treating organic-inorganic hybrid exhaust gas according to claim 1, characterized in that:
wherein, the top surface of box is detachable overhauls the apron.
4. The purification apparatus for simultaneously treating organic-inorganic hybrid exhaust gas according to claim 1, characterized in that:
wherein, a portable handle is fixed on the upper cover plate of the purification cylinder of the adsorption catalytic oxidation purification unit.
5. The purification apparatus for simultaneously treating organic-inorganic hybrid exhaust gas according to claim 1, characterized in that:
wherein, the waste gas outlet is positioned at the bottom of the side surface of the box body processing chamber.
6. The purification apparatus for simultaneously treating organic-inorganic hybrid exhaust gas according to claim 1, characterized in that:
wherein, waste gas import and waste gas outlet are located on two relative sides of box.
7. The purification apparatus for simultaneously treating organic-inorganic hybrid exhaust gas according to claim 1, characterized in that:
wherein, in the organic waste gas adsorption catalytic oxidation layer, the adsorbent is activated carbon, molecular sieve, activated carbon fiber, activated alumina or resin organic waste gas adsorption material.
8. The purification apparatus for simultaneously treating organic-inorganic hybrid exhaust gas according to claim 1, characterized in that:
in the high-energy ion generating assembly, the medium material is quartz glass or enamel; the inner electrode plate and the outer electrode plate are made of stainless steel or carbon steel net structures.
9. The purification apparatus for simultaneously treating organic-inorganic hybrid exhaust gas according to claim 1, characterized in that:
in the adsorption catalytic oxidation purification unit, the upper cover plate and the lower cover plate of the purification cylinder are made of enamel or quartz glass.
10. The purification method of a purification apparatus for simultaneously treating an organic-inorganic hybrid exhaust gas according to any one of claims 1 to 9, characterized in that:
comprises the following steps:
s1: industrial waste gas is fed into mixing chamber through waste gas inlet, then uniformly fed into adsorption catalytic oxidation purification unit, and the organic component in the waste gas is reacted with high-energy ion produced by high-energy ion generation component and decomposedThe VOCs with lower content are partially decomposed; the current of the pulse type high-frequency high-voltage generator is 0.25-0.45A, and the generation amount of high-energy ions is 3 multiplied by 1016～5×1016PCS/h；
S2: the waste gas enters an organic waste gas adsorption catalytic oxidation layer, the incompletely-reacted VOCs gas is adsorbed in the adsorbent micropore pore canal of the loaded catalyst, the contact time of the VOCs and the catalyst is prolonged, the energy required by the decomposition of the VOCs is reduced by the catalyst, and the undecomposed VOCs are further and completely decomposed into CO under the synergistic action of high-energy ions2And H2O；
S3: the waste gas passes through an inorganic waste gas adsorption layer to remove inorganic gas;
s4: after three-stage reaction, VOCs waste gas and inorganic waste gas are removed, and ozone generated by the high-energy ion generation assembly is decomposed through a deep purification device at a waste gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111134519.5A CN113813781B (en) | 2021-09-27 | 2021-09-27 | Purification device and purification method for simultaneously treating organic and inorganic mixed waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111134519.5A CN113813781B (en) | 2021-09-27 | 2021-09-27 | Purification device and purification method for simultaneously treating organic and inorganic mixed waste gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113813781A true CN113813781A (en) | 2021-12-21 |
| CN113813781B CN113813781B (en) | 2023-03-10 |
Family
ID=78915604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111134519.5A Active CN113813781B (en) | 2021-09-27 | 2021-09-27 | Purification device and purification method for simultaneously treating organic and inorganic mixed waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113813781B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5662869A (en) * | 1992-12-06 | 1997-09-02 | Ngk Insulators, Ltd. | Exhaust gas purification method and apparatus therefor |
| JPH10202038A (en) * | 1997-01-27 | 1998-08-04 | Mitsubishi Heavy Ind Ltd | Treatment of volatile organic material and treatment device therefor |
| JP2001149751A (en) * | 1999-11-25 | 2001-06-05 | Japan Organo Co Ltd | Device for treating waste gas containing volatile organic material |
| US20030077212A1 (en) * | 2000-05-04 | 2003-04-24 | Thomas Hammer | Method and device for exhaust gas purification |
| CN101530744A (en) * | 2008-03-13 | 2009-09-16 | 住友化学株式会社 | Process for decomposing volatile aromatic compound |
| CN103331082A (en) * | 2013-07-10 | 2013-10-02 | 江苏省环境科学研究院 | Apparatus for oxidization treatment of benzene-containing exhaust gas through coupling of particle swarm electrode adsorption with electro-catalysis |
| CN104383812A (en) * | 2014-11-22 | 2015-03-04 | 重庆睿容环保科技有限公司 | VOCs (volatile organic chemicals) low-temperature plasma combined treatment system |
| US20170173529A1 (en) * | 2015-12-21 | 2017-06-22 | Korea Institute Of Science And Technology | Apparatus for decomposing low concentration of volatile organic compounds by high flow |
| CN109999624A (en) * | 2019-04-11 | 2019-07-12 | 南京大学环境规划设计研究院股份公司 | The integration apparatus of adsoption catalysis coupling processing acid waste gas and organic exhaust gas |
-
2021
- 2021-09-27 CN CN202111134519.5A patent/CN113813781B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5662869A (en) * | 1992-12-06 | 1997-09-02 | Ngk Insulators, Ltd. | Exhaust gas purification method and apparatus therefor |
| JPH10202038A (en) * | 1997-01-27 | 1998-08-04 | Mitsubishi Heavy Ind Ltd | Treatment of volatile organic material and treatment device therefor |
| JP2001149751A (en) * | 1999-11-25 | 2001-06-05 | Japan Organo Co Ltd | Device for treating waste gas containing volatile organic material |
| US20030077212A1 (en) * | 2000-05-04 | 2003-04-24 | Thomas Hammer | Method and device for exhaust gas purification |
| CN101530744A (en) * | 2008-03-13 | 2009-09-16 | 住友化学株式会社 | Process for decomposing volatile aromatic compound |
| CN103331082A (en) * | 2013-07-10 | 2013-10-02 | 江苏省环境科学研究院 | Apparatus for oxidization treatment of benzene-containing exhaust gas through coupling of particle swarm electrode adsorption with electro-catalysis |
| CN104383812A (en) * | 2014-11-22 | 2015-03-04 | 重庆睿容环保科技有限公司 | VOCs (volatile organic chemicals) low-temperature plasma combined treatment system |
| US20170173529A1 (en) * | 2015-12-21 | 2017-06-22 | Korea Institute Of Science And Technology | Apparatus for decomposing low concentration of volatile organic compounds by high flow |
| CN109999624A (en) * | 2019-04-11 | 2019-07-12 | 南京大学环境规划设计研究院股份公司 | The integration apparatus of adsoption catalysis coupling processing acid waste gas and organic exhaust gas |
Non-Patent Citations (1)
| Title |
|---|
| 王楼: "光氧离子法处理保险粉生产废气的工程应用", 《化工设计通讯》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113813781B (en) | 2023-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105521705A (en) | Method for treating organic waste gas through low-temperature plasma concerted catalysis | |
| KR20080013831A (en) | Advanced air deodorizor and process based on ozone(water), plasma and catalyst | |
| CN107398144B (en) | Method and device for removing harmful gas by gas discharge in cooperation with solution absorption | |
| CN107413175B (en) | Method and device for purifying indoor volatile organic compounds through high-efficiency low-energy-consumption secondary-pollution-free low-temperature plasma concerted catalysis | |
| JP4411432B2 (en) | Method and apparatus for purifying exhaust gas using low temperature plasma | |
| KR100956844B1 (en) | Odor removal device and method of removing odor | |
| CN103453591A (en) | Photocatalytic fluidized bed air purifier | |
| CN105709596A (en) | Photocatalytic oxidation and molecular sieve absorption catalytic oxidation method for industrial waste gas VOCs | |
| CN112316679B (en) | Low-temperature plasma VOCs purification device and method | |
| CN209917632U (en) | Low concentration VOCs organic waste gas purifying equipment | |
| KR101595335B1 (en) | Compound reactor for removing malodor gas | |
| CN113813781B (en) | Purification device and purification method for simultaneously treating organic and inorganic mixed waste gas | |
| CN113019083A (en) | VOCs low-temperature plasma synergistic adsorption and catalysis integrated device and VOCs treatment method thereof | |
| US6395144B1 (en) | Method for treating toxic compounds-containing gas by non-thermal plasma | |
| CN106890566A (en) | A kind of reactor of plasma body cooperative ultraviolet catalytic cleaning organic waste gas | |
| CN111514743A (en) | Catalytic oxidation system for treating malodorous gas | |
| CN110559827B (en) | Treatment process of papermaking waste gas | |
| CN115722052B (en) | Device and method for removing volatile organic compounds in industrial waste gas | |
| CN207511986U (en) | A kind of wastewater treatment equipment of low temperature plasma combined catalyst and adsorbent | |
| CN108176415A (en) | A kind of air purification raw material of wood-charcoal cleans regenerative use technology | |
| CN207102274U (en) | Gas cleaning plant | |
| CN209771789U (en) | Electrochemical synergistic photocatalytic organic waste gas treatment device | |
| CN110064291B (en) | Integrated low-concentration stink waste gas treatment device | |
| CN110585864B (en) | Reaction process suitable for low-temperature plasma concerted catalytic degradation of VOCs and membrane catalyst preparation process | |
| CN207237698U (en) | A kind of reactor of plasma body cooperative ultraviolet catalytic cleaning organic waste gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |