CN113181763A - VOC removing device for hollow fiber membrane fixed bed - Google Patents
VOC removing device for hollow fiber membrane fixed bed Download PDFInfo
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- CN113181763A CN113181763A CN202110120336.1A CN202110120336A CN113181763A CN 113181763 A CN113181763 A CN 113181763A CN 202110120336 A CN202110120336 A CN 202110120336A CN 113181763 A CN113181763 A CN 113181763A
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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
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
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- 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
Abstract
Hollow fiber membrane fixed bed VOC removal device. Spraying a layer of catalyst on the surface of the hollow fiber membrane or adopting the hollow fiber membrane loaded with the catalyst, and adding the powder cake formed by the intercepted solid dust to form a powder cake fixed reaction bed; the processing medium and the processing object are conveyed to the powder cake fixed reaction bed from the same side, VOC in the flue gas is coagulated and degraded, the gas passes through the membrane holes and is discharged through the pipeline, dust is intercepted, and sediment is blown off by back blowing. Has the advantages of large specific surface area, low airspeed, small membrane pore, high catalyst concentration and extremely high mass transfer efficiency, and can simultaneously and efficiently remove generalized VOC and dust.
Description
Technical Field
Hollow fiber membrane fixed bed VOC removal device.
Background
By VOC is meant, in its broadest definition, any carbon compound that participates in atmospheric photochemical reactions, except carbon monoxide, carbon dioxide, carbonic acid, metal carbides, metal carbonates, and ammonium carbonate. The world health organization (WHO, 1989) defines Total Volatile Organic Compounds (TVOC) as: the total name of volatile organic compounds with melting point lower than room temperature and boiling point between 50-260 ℃. The definition of Total Volatile Organic Compounds (TVOC) in the national standard GB/T18883-2002 indoor air quality Standard is as follows: volatile organic compounds with retention times between n-hexane and n-hexadecane were analyzed by sampling with Tenax GC and Tenax TA, non-polar chromatography columns (polarity index less than 10).
The field of application and the objects of treatment of the invention are in the above definitions, such as the treatment for removing sulfur oxides, nitrogen oxides, fluorine oxides, and most commonly volatile gases from flue gases.
After being discharged into the atmosphere, the VOC in industrial production can generate aerosol particles and ozone under the action of sunlight, various catalysts and oxides, and become important air pollutants.
For example, one of the common VOC treatments is: the process path of collecting the gas collecting hood, conveying the gas collecting hood by a pipeline, dedusting the gas collecting hood by a deduster, adsorbing the gas collecting hood by active carbon or zeolite, catalyzing and burning the gas, and discharging the gas. The method for decomposing VOC by ozone catalytic oxidation also stays in a laboratory stage, and is rarely applied industrially. Most of these experiments were conducted by feeding the VOC gas under test, ozone and catalyst into a bubble column and obtaining data as a result of the bubbling reaction of the reactants in the liquid. Under this ambient condition, the contact between the reactants is insufficient and the mass transfer coefficient is low. Once used in industrial fields, the method also has the problems of secondary pollution, difficult treatment of metabolites, low reaction efficiency, high consumption of ozone and oxidants, complex structure and the like.
In a common adsorption-catalytic combustion process route, the gas trapped by a dust collector such as a cloth bag or pleated filter cartridge is coagulated into larger-sized particles, other smaller particles and gaseous VOCs pass through the cloth bag or pleated filter cartridge and enter an active carbon or zeolite link. The active carbon or zeolite has small particle size and gas component. The gas part can be effectively adsorbed by the micropores of the activated carbon or the zeolite, the solidified aerosol particles can not enter the micropores but are blocked on the surfaces of the micropores, the particles can not be adsorbed and desorbed, and finally the micropores of the activated carbon or the molecular sieve are poisoned and blocked, so that the service life of the adsorbing material is greatly shortened, the efficiency is reduced, the consumption of auxiliary fuel is increased, the comprehensive cost is increased sharply, and even the degree of difficult maintenance is achieved. This is the most common general problem in current VOC treatment system applications. The core of this problem is that the filtration accuracy and efficiency of the precipitator is too low and can be improved by modifying the filter element of the precipitator.
The patent application of '202010416987.7 a VOC processing system improves structure' that the inventor submitted adopts hollow fiber membrane filter core dust remover, has improved dust filtration efficiency 1000 times, has reached the level of trace level processing, and the effect of field application is fine, has prolonged the life-span of adsorbing material by a wide margin, has reduced material and energy resource consumption, has realized long-term stable operation.
Apparently, the novel filter material is only an improvement on the dust removal efficiency of the original system, only intercepts dust and eliminates the interference and pressure on the subsequent process. The careful field observation of the device by the inventor shows that the situation is not so much, and the microgram-level high-precision filtration of the hollow fiber membrane also participates in the VOC treatment process.
Experiments show that the VOCS value measured from the dust hood and the pipeline to the inlet of the dust remover is 250mg/m, the VOCS value measured at the outlet of the dust remover is only 200-210 mg/m for cultivating trees after passing through the hollow fiber membrane filter element dust remover, and 10-20% of VOC is intercepted by the hollow fiber membrane, which rarely occurs in other dust removers such as pleated filter cartridges, cloth bags, filter cottons and the like.
Although not many, an important cue. This shows that, since the hollow fiber membrane increases the dust filtration efficiency to 99.999% to 99.9999%, and after the accuracy reaches 0.1 to 0.3 μm, the relationship between the object to be treated and the membrane filaments changes, and a part of the gaseous VOC is oxidized, decomposed, condensed, and thereby intercepted, after contacting the cake on the surface of the hollow fiber membrane.
That means: the VOC can be intercepted in a mode of intercepting dust and VOC degradation. It is inferred from this that the reason why the treatment of VOC by decomposition in the past was not effective and energy-consuming is high is 1, probably because VOC having been decomposed into particles of small particle size was not efficiently intercepted and filtered. 2. The time of contact is insufficient.
The next task is to take measures to decompose, condense and condense more gaseous VOC into larger particles meeting the interception conditions, in particular to form a stable reaction bed, thereby realizing higher interception efficiency.
From the analysis in principle, gaseous VOCs is because of high temperature, reaction, stirring in the course of working and is generated, after leaving the source, because the temperature progressively reduces, VOC from gaseous state constantly oxidation, condense, the coagulation, until returning to liquid, solid state, before this process is accomplished only, the part that has not come to fully condense has been discharged into the atmosphere, continues oxidation, condensation in atmospheric environment, has become the haze, changes into SOA from VOC. The important factors are sunlight, oxide, catalyst, and are accomplished in an atmospheric environment. The task to be accomplished is to maximize the conversion of gaseous VOC into larger particulate matter prior to the precipitator stage.
Many experimental or well-established engineering methods are available to accomplish VOC gas condensation and aerosol coalescence. For example: freezing is a coagulation method, and has the defect of huge energy consumption.
In engineering practice, toluene, ethyl acetate and butanone … … are decomposed by catalytic oxidation, oxidant generates various free radicals under the action of catalyst, and commonly used gaseous toluene, ethyl acetate and butanone are gradually oxidized and decomposed by free radicals into benzyl alcohol, benzaldehyde, benzoic acid, o-cresol, formic acid, acetic acid, propionic acid, acetaldehyde, anhydride and the like, and then are decomposed again by free radicals into alcohol, aldehyde and acid, and are repeatedly decomposed to finally form H2O and CO2. This is a complex and lengthy process, and at each level, various conditions are subject to splitting, combining and phase change, and a great deal of energy consumption and time are required to maintain the reaction in depth without interruption until the goal of finally decomposing the reaction into carbon dioxide and water is reached.
However, the intermediates of benzyl alcohol, benzaldehyde, benzoic acid, o-cresol and the like generated in the process have undergone phase change, are no longer in a gas state, and many intermediates have returned to a liquid or crystalline state, have the possibility of adhering to other body particles, and even are solid particles per se. In the face of this, it is no longer necessary to continue the reaction to such an extent that carbon dioxide and water are ultimately formed, or else to treat all the VOC as carbon dioxide and water, since the smaller the molecular substance the more energy is required for decomposition. The aim of saving energy consumption and reducing VOC emission can be achieved only by capturing the particles.
Also, VOC's such as sulfur dioxide and nitrogen oxides can be treated by the same method and apparatus.
This has led the inventors to develop new concepts for improving conventional VOC treatment systems. The purpose of processing VOC by using the hollow fiber membrane is only to remove more dust, create conditions for the subsequent adsorption-catalytic combustion processing of VOC gas and indirectly process VOC, and the new idea is to directly process VOC by using the surface of the hollow fiber membrane as a reaction interface.
Disclosure of Invention
According to the thought and the principle, the invention aims to provide a method for installing an oxidant, a catalyst, an ozone spraying system and a UV lamp array in front of a hollow fiber membrane dust removal filter material, reducing the wind speed passing through the filtering surface of a hollow fiber membrane to the range of 1 mm/s-30 mm/s, utilizing the surface of a hollow fiber membrane wire as a carrier, forming a powder cake on the surface of the membrane wire by the sprayed oxidant, the catalyst and dust, using the powder cake as a fixed reaction bed, adding two spaces, namely the inner space of a dust remover box body and a front end pipeline of the dust remover box body, a UV lamp and sprayed ozone, and carrying out catalytic oxidation on the input gas containing VOC and dust, so that gaseous VOC is degraded into liquid, aerosol and crystals to form a coagulation condition, and then the coagulation condition is changed into aerosol or solid particles with larger particle diameter, and the particles are intercepted by the hollow fiber membrane, thereby achieving the purpose of intercepting more VOC. In order to save the consumption of the catalyst, when the hollow fiber membrane filament is manufactured, the catalyst is added into the material for preparing the hollow fiber membrane filament at present to prepare the hollow fiber membrane filament loaded with the catalyst, thereby further strengthening and stabilizing the catalytic action of the fixed bed.
The first innovation point of the invention is that: spraying a layer of catalyst on the surface of the hollow fiber membrane or adopting the hollow fiber membrane loaded with the catalyst, and adding the powder cake formed by the intercepted solid dust to form a catalytic fixed bed;
spraying an oxidant into the VOC-containing gas; UV lamps are arranged at the periphery of the hollow fiber membrane. Because the specific surface area of the hollow fiber membrane is large, the wind speed can be adjustedAs low as 1-30 mm/s, under the synergistic action of ozone, auxiliary oxidant, catalyst and UV lamp, most of gaseous VOC in the flue gas is degraded to a smaller molecular level, more gaseous VOC returns to a liquid and aerosol state and is condensed into particles which can be intercepted by the membrane pores of the hollow fiber membrane, the particles are intercepted by utilizing the high-precision dust treatment capacity of the hollow fiber membrane, and a part of the particles is degraded into O2C and HO2To the extent that the goal of reducing VOC emissions is achieved.
The second innovation point of the invention is that: in the past, hollow fiber membranes have typically been used in which two reaction media are run on opposite sides of the membrane filaments, so-called "shell side" and "tube side" for hollow fiber membranes, and the two reaction media are located on opposite sides of the membrane and contact, exchange, and react through the membrane pores. For example, cn201910818925.x, CN201921100518.7, CN201310298082.8, CN 201310298081.3. In contrast, the present invention delivers the treatment medium and the treatment object to the film surface from the same side. The treatment medium reaching the membrane surface and the gas, liquid, and solid components in the object to be treated are physically or chemically reacted with each other, and at the same time, the treatment medium and the solid components are blocked by the common membrane and are retained on the membrane surface, so that the membrane surface is a "fixed bed". The reacted gas partially passes through the membrane holes of the membrane filaments and is discharged through the tube pass, and reactants retained on the outer surfaces of the membrane filaments are blown off by the blowback airflow and are renewed again.
The third innovation point of the invention is that: when the hollow fiber membrane yarn is manufactured, a catalyst material is added to raw materials to manufacture the hollow fiber membrane yarn loaded with the catalyst, and the hollow fiber membrane yarn is used as a fixed bed for treating VOC
The invention aims to: the method is characterized in that a liquid bubbling bed, a spray tower and a catalyst array adopted in the traditional method are replaced, hollow fiber membrane filaments or hollow fiber membrane filaments loaded with a catalyst are used as a carrier, the catalyst and an oxidant are sprayed while dust particles in flue gas are intercepted in microgram level, powder cakes are formed on the surfaces of the membrane filaments, the powder cakes and the membrane filaments are used as fixed reaction beds, and the beneficial conditions of large specific surface area, low airspeed, small membrane pore diameter, high catalyst concentration and extremely high mass transfer efficiency of the powder cake fixed reaction beds are utilized to realize catalytic oxidation, decomposition and condensation of VOC, so that VOC is removed efficiently.
In accordance with the above principles and objectives, the present invention proposes: the VOC removing device for the hollow fiber membrane fixed bed comprises a flue gas inlet pipe (01), a pre-stage dust remover (02), an air inlet pipe mixer (03), an auxiliary oxidant supply system (04), a catalyst supply system (05), an ozone supply system (06), an electric control valve (07), a hollow fiber membrane component (08), a main machine body (09), a powder cake fixed reaction bed, a fan (10), an ozone decomposer (11), a VOC-ozone monitoring and control feedback system (12), a UV lamp, a chimney and a back flushing system; the pre-stage dust remover (02) is a primary and intermediate-effect dust remover, and can be omitted when the flue gas dust is less than 20-100 mg/m in cultivation.
The method is characterized in that: the pre-stage dust collector (02) is arranged in front of the main machine body (09), the middle of the pre-stage dust collector is connected with the air inlet pipe mixer (03), the mixed gas containing VOC and dust is treated by the pre-stage dust collector (02), and the gas after partial dust is removed is sent into the main machine body (09) through the air pipe mixer (03);
an auxiliary oxidant supply system (04), a catalyst supply system (05) and an ozone supply system (06) are arranged on the wall of the air inlet pipe mixer (03) or the main machine body (09) and respectively spray auxiliary oxidant, catalyst and ozone into the main machine body (09); a series of hollow fiber membrane components (08) are arranged on a large pattern plate in the main machine body (09) and are attracted by the negative pressure of the fan (10), so that the sprayed catalyst and the sprayed auxiliary oxidant are adsorbed on the surfaces of membrane wires of the components, and form a powder cake together with dust entering along with flue gas, and further form a powder cake fixed reaction bed attached to the surfaces of the membrane wires;
VOC-containing flue gas entering a main machine body (09) and sprayed ozone react with a catalyst and an auxiliary oxidant on the pressed powder fixed reaction bed to generate oxidation catalysis, and the oxidation catalysis is degraded, changed into phase and coagulated, and degraded gas, other gas in the flue gas and residual ozone pass through the pressed powder fixed reaction bed, pass through the membrane wire wall of a hollow fiber membrane component (08), pass through an air outlet of the main machine body (09) along a membrane wire inner hole pipe, and enter an ozone decomposer (11) through a fan (10); the residual ozone is further catalytically decomposed by an ozone decomposer (11), and the clean gas is discharged to the atmosphere through a chimney.
Furthermore, the hollow fiber membrane module (08) adopts two kinds of membrane filaments, namely a common membrane filament and a membrane filament loaded with a catalyst, wherein the latter is that 2-20% of catalyst material is added into raw materials during the manufacture of the hollow fiber membrane filament to manufacture the hollow fiber membrane filament loaded with the catalyst; in particular to a membrane wire which is made by adding 2-20% of manganese oxide or titanium oxide material into PDFE material or PVDF material and is loaded with catalyst.
Furthermore, VOC-ozone passes monitoring and control feedback system (12) comprises VOC sensor, ozone electric control valve (07), catalyst electric control valve (14), auxiliary oxidant electric control valve (13), PLC controller, and the signal feedback that VOC sensor, ozone sensor produced is to the PLC controller, and the PLC controller sends signal control, adjusts the degree of opening of automatically controlled ozone valve (7), automatically controlled catalyst valve (14), auxiliary oxidant valve (13).
Further, a UV lamp array is arranged in the main machine body (09).
Further, the ozonizer resolver (11) is an array made of a catalyst containing a manganese dioxide material; the oxidant supplied by the auxiliary oxidant supply system (04) is three or one of powder, liquid and gas, and is a mixture of hydrogen peroxide, sodium bicarbonate, persulfate, propylene, chloride and ammonia or one of the hydrogen peroxide, the sodium bicarbonate, the persulfate, the propylene, the chloride and the ammonia.
Drawings
FIG. 1 is a schematic diagram of an example of a hollow fiber membrane fixed bed VOC removal unit. Other versions designed in accordance with the teachings of the present invention are also within the scope of the present invention. In the figure (01), a flue gas inlet pipe; (02) a pre-stage dust collector; (03) an air inlet pipe mixer; (04) a secondary oxidant supply system; (05) a catalyst supply system; (06) an ozone supply system; (07) an ozone electric control valve; (08) a hollow fiber membrane module; (09) a main body; (10) a fan; (11) an ozone decomposer; (12) a VOC sensor; (13) an auxiliary oxidant electrically controlled valve; (14) the catalyst electrically controlled valve.
Detailed Description
According to the invention, a small experimental device for carrying out 100m high speed/h air volume cultivation is designed and manufactured.
Experiment 1, membrane module (08) was made from membrane filaments dedicated for air purification produced by Guangdong Feng and clean engineering Limited. First, 20g of manganese dioxide powder was sprayed from the catalyst supply system (05). 50g of dry powder collected from a dust hopper of a dust collector of an ink plant is sprayed from an air inlet pipe mixer (03). And (3) continuously injecting the toluene and ethyl acetate mixed VOC 300mg/m from the air inlet pipe mixer (03). Performing a continuous implantation of 150mg/m ozone from ozone supply system (06). Measure VOC content in the air outlet of main engine body (09) lasting one hour, VOC measuring apparatu shows that the result is 0.00mg/m always for heavy year.
Experiment 2, a membrane component (08) is prepared by adopting a manganese dioxide-loaded polytetrafluoroethylene hollow fiber membrane wire developed by Guangdong wind and clean engineering limited company. 50g of dry powder collected from a dust hopper of a dust collector of an ink plant is sprayed from an air inlet pipe mixer (03). And (4) continuously spraying 300mg/m of mixed VOC obtained by toluene and ethyl acetate from the air inlet pipe mixer (03). Performing a continuous implantation of 150mg/m ozone from ozone supply system (06). And (3) measuring the VOC content at the air outlet of the main machine body (09) for one hour, wherein the VOC measuring instrument shows that the result is always 5.00mg/m for carrying out the high-speed thin film cultivation-7.00 mg/m for carrying out the high-speed thin film cultivation.
Experiment 3, the membrane component (08) is prepared by adopting the membrane filaments special for air purification produced by Guangdong wind and clean engineering limited company. First, 20g of manganese dioxide powder was sprayed from the catalyst supply system (05). 50g of dry powder collected from a dust hopper of a dust collector of an ink plant is sprayed from an air inlet pipe mixer (03). And continuously spraying 300mg/m of toluene VOC into the air inlet pipe mixer (03) for carrying out the heavy planting. Continuously injecting 100mg/m of ozone from the ozone supply system (06), and continuously spraying 1g/min of hydrogen peroxide crystal powder from the auxiliary oxidant supply system (04). Measure VOC content in the air outlet of main engine body (09) lasting one hour, VOC measuring apparatu shows that the result is 0.00mg/m always for heavy year.
In field test, the small test stand in the experiment 1 is connected with an existing VOC device of a certain ink factory in parallel, the daily average output VOC concentration of the existing device is 80-100 mg/m and is in an overproof state, and the daily average VOC output concentration of the device is 0-2 mg/m.
Claims (6)
1. The VOC removing device for the hollow fiber membrane fixed bed comprises a pre-stage dust remover (02), a main machine body (09), an air inlet pipe mixer (03), an auxiliary oxidant supply system (04), a catalyst supply system (05), an ozone supply system (06), a hollow fiber membrane component (08), a powder cake fixed reaction bed, a fan (10), an ozone decomposer (11), a VOC-ozone monitoring and control feedback system (12), a UV lamp, a chimney and a back flushing system; the pre-stage dust remover (02) is a primary and intermediate-effect dust remover, and can be omitted when the dust in the flue gas is less than 20-100 mg/m during the cultivation;
the method is characterized in that: the pre-stage dust collector (02) is arranged in front of the main machine body (09), the middle of the pre-stage dust collector is connected with the air inlet pipe mixer (03), the mixed gas containing VOC and dust is treated by the pre-stage dust collector (02), and the gas after partial dust is removed is sent into the main machine body (09) through the air pipe mixer (03);
an auxiliary oxidant supply system (04), a catalyst supply system (05) and an ozone supply system (06) are arranged on the wall of the air inlet pipe mixer (03) or the main machine body (09) and respectively spray auxiliary oxidant, catalyst and ozone into the main machine body (09); a series of hollow fiber membrane components (08) are arranged on a large pattern plate in the main machine body (09) and are attracted by the negative pressure of the fan (10), so that the sprayed catalyst and the sprayed auxiliary oxidant are adsorbed on the surfaces of membrane wires of the hollow fiber membrane components (08) and form a powder cake together with dust entering along with flue gas, and further form the powder cake fixed reaction bed attached to the surfaces of the membrane wires;
VOC-containing flue gas entering a main machine body (09) and sprayed ozone react with a catalyst and an auxiliary oxidant on the compact fixed reaction bed to generate oxidation catalysis, and the oxidation catalysis is degraded, changed into phase and condensed, and degraded gas, other gas in the flue gas and residual ozone pass through the compact fixed reaction bed, pass through the membrane wire wall of the hollow fiber membrane component (08), pass through an air outlet of the main machine body (09) along a membrane wire inner hole pipe, and enter an ozone decomposer (11) through a fan (10); the residual ozone is further catalytically decomposed by an ozone decomposer (11), and the clean gas is discharged to the atmosphere through a chimney.
2. The hollow fiber membrane fixed bed VOC removing device according to claim 1, wherein: one of the membrane filaments adopted by the hollow fiber membrane component (08) is a membrane filament loaded with a catalyst, and the membrane filament is a hollow fiber membrane filament loaded with a catalyst, which is prepared by adding 2-20% of catalyst material into raw materials during the preparation of the hollow fiber membrane filament; in particular to a membrane wire which is made by adding 2-20% of manganese oxide or titanium oxide material into PDFE material or PVDF material and is loaded with catalyst.
3. The hollow fiber membrane fixed bed VOC removing device according to claim 1, wherein: VOC-ozone monitoring and control feedback system (12) comprises VOC sensor, ozone sensor, automatically controlled ozone valve (07), automatically controlled catalyst valve (14), automatically controlled auxiliary oxidant valve (13), PLC controller, and the signal feedback that VOC sensor, ozone sensor produced feeds back to PLC controller, PLC controller send signal control adjusts the degree of opening of automatically controlled ozone valve (07), automatically controlled catalyst valve (14), automatically controlled auxiliary oxidant valve (13).
4. The hollow fiber membrane fixed bed VOC removing device according to claim 1, wherein: the main body (09) is internally provided with a UV lamp array.
5. The hollow fiber membrane fixed bed VOC removing device according to claim 1, wherein: the ozonizer resolver (11) is an array made of a catalyst comprising a manganese dioxide material.
6. The hollow fiber membrane fixed bed VOC removing device according to claim 1, wherein: the oxidant supplied by the auxiliary oxidant supply system (04) is three or one of powder, liquid and gas, and is a mixture of hydrogen peroxide, sodium bicarbonate, persulfate, propylene, chloride and ammonia or one of the hydrogen peroxide, the sodium bicarbonate, the persulfate, the propylene, the chloride and the ammonia.
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| CN115105944A (en) * | 2022-07-05 | 2022-09-27 | 广东风和洁净工程有限公司 | Hollow fiber membrane bed manganese method SOx/NOx control device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667715A (en) * | 2015-02-10 | 2015-06-03 | 南京工业大学 | Flue gas desulfurization and denitrification and dust removal integrated device and process |
| CN206526616U (en) * | 2016-11-23 | 2017-09-29 | 辽宁鸿盛环境技术集团有限公司 | A kind of high-temperature flue gas dust and nitrogen oxides cooperative control system |
| CN109224874A (en) * | 2018-11-05 | 2019-01-18 | 南京工业大学 | A kind of catalytic membrane and preparation method thereof for air cleaning |
| US20190217240A1 (en) * | 2016-10-07 | 2019-07-18 | Haldor Topsøe A/S | A process for low temperature gas cleaning with ozone and a catalytic bag filter for use in the process |
| US20190329180A1 (en) * | 2016-10-07 | 2019-10-31 | Haldor Topsøe A/S | A process for low temperature gas cleaning and a catalyst for use in the process |
| CN111330408A (en) * | 2019-12-31 | 2020-06-26 | 苏州中科百奥科技发展有限公司 | VOCs pressure swing adsorption purification recovery method and system |
| CN111359408A (en) * | 2020-04-30 | 2020-07-03 | 西安交通大学 | Desulfurization and denitrification flue gas comprehensive treatment device and method cooperating with thermal power generation |
-
2021
- 2021-01-28 CN CN202110120336.1A patent/CN113181763B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667715A (en) * | 2015-02-10 | 2015-06-03 | 南京工业大学 | Flue gas desulfurization and denitrification and dust removal integrated device and process |
| US20190217240A1 (en) * | 2016-10-07 | 2019-07-18 | Haldor Topsøe A/S | A process for low temperature gas cleaning with ozone and a catalytic bag filter for use in the process |
| US20190329180A1 (en) * | 2016-10-07 | 2019-10-31 | Haldor Topsøe A/S | A process for low temperature gas cleaning and a catalyst for use in the process |
| CN206526616U (en) * | 2016-11-23 | 2017-09-29 | 辽宁鸿盛环境技术集团有限公司 | A kind of high-temperature flue gas dust and nitrogen oxides cooperative control system |
| CN109224874A (en) * | 2018-11-05 | 2019-01-18 | 南京工业大学 | A kind of catalytic membrane and preparation method thereof for air cleaning |
| CN111330408A (en) * | 2019-12-31 | 2020-06-26 | 苏州中科百奥科技发展有限公司 | VOCs pressure swing adsorption purification recovery method and system |
| CN111359408A (en) * | 2020-04-30 | 2020-07-03 | 西安交通大学 | Desulfurization and denitrification flue gas comprehensive treatment device and method cooperating with thermal power generation |
Non-Patent Citations (3)
| Title |
|---|
| 何涛等: "《动车组车内环境控制系统》", 31 May 2012, 北京：北京交通大学出版社 * |
| 李良助等: "《有机合成原理和技术》", 31 May 1992, 北京：高等教育出版社 * |
| 王丽敏: "《工业防尘技术》", 28 February 2017, 长春：吉林大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115105944A (en) * | 2022-07-05 | 2022-09-27 | 广东风和洁净工程有限公司 | Hollow fiber membrane bed manganese method SOx/NOx control device |
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