CN106334374B - The preparation method and product of a kind of dedusting and the filtering material for decomposing bioxin - Google Patents
The preparation method and product of a kind of dedusting and the filtering material for decomposing bioxin Download PDFInfo
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- CN106334374B CN106334374B CN201610893470.4A CN201610893470A CN106334374B CN 106334374 B CN106334374 B CN 106334374B CN 201610893470 A CN201610893470 A CN 201610893470A CN 106334374 B CN106334374 B CN 106334374B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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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
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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
- B01D53/8659—Removing halogens or halogen compounds
- B01D53/8662—Organic halogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0464—Impregnants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/206—Rare earth metals
- B01D2255/2065—Cerium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20723—Vanadium
Abstract
The present invention relates to a kind of dedusting and decompose bioxin filtering material preparation method and product, the specific steps are：(1) TiO is prepared2Colloidal sol；(2) by TiO2Colloidal sol is sprayed on filter cloth, and sintering processes then are dried in filter cloth；(3) vanadic salts and cerium salt are added in deionized water, maceration extract is made；(4) by treated that filter cloth is placed in the maceration extract in step (3) through drying and sintering in step (2), the filter cloth after dipping is first dried and is sintered afterwards, catalytic decomposition layer is made；(5) catalytic decomposition in step (4) is placed between supporting course, through fibre prickling working process, dedusting is made and decomposes the filtering material of bioxin, the material has the characteristics that large specific surface area, acid bit distribution are abundant, dedusting is catalytically decomposed Yu bioxin and has excellent performance, dedusting can be achieved He bioxin decomposition integration is handled, simplified industrial tail gas purification process technique process saves the overall cost of vent gas treatment.
Description
Technical field
The invention belongs to filtering material technical fields, and in particular to the system of a kind of dedusting and the filtering material for decomposing bioxin
Preparation Method and product.
Background technique
With the fast development of countries in the world modern industrialization process, environmental protection has become the hot spot of common people's concern.Greatly
Gas pollutes oneself as a global problem got worse, and solid waste generates a large amount of pollutants during the burning process, such as
Particulate matter, sour gas, heavy metal and bioxin etc..There are high risks to human health for these pollutants, wherein with two
The murder by poisoning of Evil English is maximum, removes difficulty also highest.
Energy consumption generates bioxin and occupy the first, and discharge amount accounts for about the 50% of total release, the burning of waste
The bioxin of generation takes second place, and castoff burning major sources are consumer waste incineration, danger wastes burn and medical treatment is useless
Gurry burns.Bioxin includes 210 multiple compounds, and this kind of physical property is stablized, it is difficult to decompose, by biological chain in organism
Interior accumulation, endangers human health.Currently, activated carbon adsorption is common processing bioxin method both at home and abroad, removal efficiency also compared with
Height, however the factors such as the service life of active carbon, price limit the popularization of technology.Meanwhile the active carbon of adsorption saturation is adopted more
With land-fill method, secondary pollution may also be caused to soil and groundwater source by being transferred to solid phase Zhong bioxin after landfill.
With the raising that the development of fibre technology and dust emission require, dust settling pocket technique is increasingly becoming production technology
Prevailing technology.Sack cleaner structure is relatively simple, investment is less, and operation is simple and reliable, adaptable, and has and collect dust grain
The feature that diameter range is wide, filter efficiency is high, is widely used in field of air filtration.Catalyst decomposes bioxin skill in recent years
Art is gradually taken seriously, and bioxin can be decomposed into carbon dioxide, water and micro by (160-250 DEG C) at a certain temperature for it
HCl gas.Such catalyst has machine-shaping (such as honeycomb) use at present, but existence foundation facility investment is big, is not suitable for
In Small Scale Industry promote and apply the shortcomings that.To which catalyst powder is implanted into filtering material and be processed into filter cloth, can be substituted
Existing dedusting filtering bag has the function of dedusting He bioxin decomposes economic benefits and social benefits, and therefore, garbage burning factory is not required to adjustment equipment and operation
It just can be used, have the characteristics that simple and easy in the case where parameter.
The fiber containing catalyst and other synthetic fibers are all made of in existing fibre technology by shredding, mixing, combing
Deng serial process, wherein the fiber containing catalyst cannot bear strong shredding during this since intensity is low
Power causes the damage and fracture of fiber, eventually leads to the reduction of its service performance.So exploitation is high-intensitive, long life catalysis
Agent fibre technology is imperative, will also have great application prospect.
Summary of the invention
In view of this, it is an object of the invention to：(1) a kind of dedusting is provided and decomposes the preparation of the filtering material of bioxin
Method；(2) a kind of dedusting is provided and decomposes the filtering material of bioxin.
In order to achieve the above objectives, the present invention provides the following technical solutions：
1, the preparation method of the filtering material of a kind of dedusting and decomposition bioxin, specifically includes following steps：
(1) butyl titanate is added in ethanol solution, stirring to mixed solution is creamy white；Then hydrochloric acid is added to described
Mixed solution clear；It is eventually adding water, TiO is made2Colloidal sol；
(2) by TiO made from step (1)2Colloidal sol is sprayed on filter cloth, is formed wet film, is then done the filter cloth
Dry sintering processes；
(3) vanadic salts and cerium salt are added in deionized water, maceration extract is made；
(4) by step (2) through in drying and sintering treated filter cloth is placed in step (3) maceration extract obtained, then
By the filter cloth dry roasting after dipping, catalytic decomposition layer is made；
(5) catalytic decomposition obtained in step (4) is placed between supporting course, through fibre prickling working process, is made
Dedusting and the filtering material for decomposing bioxin.
Further, in step (1), the amount of substance ratio of the butyl titanate and ethanol solution is 10~50:1, the ethyl alcohol
The volume fraction of solution is 90%, the mass fraction 10~20% of the hydrochloric acid, pH value of solution after the mixed solution clear
Value is 2~3.
Further, in step (1), the obtained TiO2Colloidal sol plastid fraction is 1~2.5% in colloidal sol.
Further, in step (2), the TiO2The discharge rate of colloidal sol is 50~200g/m2。
Further, in step (2), the condition of drying and sintering processing be at 120~240 DEG C drying and sintering 6~
12h。
Further, in step (2), the filter cloth is by polytetrafluoroethylene fibre, poly- phthalimide fiber, glass fibre or aramid fiber
One or more of fiber is made, with a thickness of 9~12 μm.
Further, in step (3), the vanadic salts is vanadic anhydride；The cerium salt is ceria；In the maceration extract
The concentration of vanadic anhydride is 0.1~0.5mol/L, and the concentration of ceria is 0.005~0.01mol/L.
Further, in step (4), it is described by step (2) through system in drying and sintering treated filter cloth is placed in step (3)
6~12h in the maceration extract obtained, the condition by the filter cloth dry roasting after dipping are dry 8~12h at 60~90 DEG C
2~5h is roasted at 400~600 DEG C afterwards.
Further, in step (5), the supporting course is by polytetrafluoroethylene fibre, poly- phthalimide fiber, glass fibre or virtue
One or more of synthetic fibre fiber is made, with a thickness of 12~16 μm.
2, a kind of dedusting as made from the preparation method of a kind of described dedusting and the filtering material for decomposing bioxin and point
The filtering material of Xie bioxin.
The beneficial effects of the present invention are：The present invention provides the preparation side of a kind of dedusting and the filtering material for decomposing bioxin
Method and product, this method prepare TiO first with sol-gel method2Colloidal sol, TiO obtained2The partial size of titanium dioxide in colloidal sol
Be distributed it is wider, molecule have linear structure, based on Ti-O-Ti key, the loading for consequent activities ingredient provides internal structure
Better catalyst carrier；It can make titanium dioxide is more uniform to be distributed on filter cloth by way of spraying, will spray
TiO2After the filter cloth of colloidal sol is first dry in immersing the solution containing active material, after active constituent is loaded into, it is ensured that two
The molecular structure of titanium oxide, particle diameter distribution are unaffected；It will be put into containing vanadic anhydride, ceria two kinds of active components
Filter cloth after impregnating in maceration extract first carries out low temperature drying, can gradually remove the moisture in titanium dioxide, effectively avoid titanium dioxide
Titanium coating leads to intramolecule structural damage due to losing rapidly because hydrone, meanwhile, when vanadic anhydride, ceria are by two
After the internal capillary filling of titania coating, low temperature drying can slowly remove the Free water of entire composite material, avoid composite wood
Catalyst material surface forms cavitation in material, guarantees the sintering strength and performance of catalyst, and subsequent high temperature sintering is changeable to urge
Agent crystal structure can effectively activate its activity, finally be placed in catalytic decomposition layer obtained in supporting layer by needling process
Between, it increases bioxin and improves reaction efficiency in the Catalytic Layer residence time, while reducing Catalytic Layer fiber loss, mistake obtained
Filter material material has the characteristics that large specific surface area, acid bit distribution are abundant, dedusting and bioxin catalytic decomposition have excellent performance, it can be achieved that
Dedusting simplifies industrial tail gas purification process technique process He bioxin decomposition integration is handled, save the synthesis of vent gas treatment at
This.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing：
Fig. 1 Wei bioxin catalytic eliminating experimental system flow chart；
Fig. 2 is embodiment 4 dedusting and filtering material bioxin catalysis point of decomposition bioxin under different space velocities
Solve efficiency chart；
Fig. 3 is the efficiency of dust collection figure of the filtering material of dedusting and decomposition bioxin under different space velocities of embodiment 4.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
Embodiment 1
It (1) is 10 by the amount of substance ratio of butyl titanate and ethanol solution:Volume fraction is added as 90% in butyl titanate by 1
In ethanol solution, at the uniform velocity stirring to mixed solution is creamy white；Then hydrochloric acid that mass fraction is 10% is added to the mixing
Solution clear, solution ph is 2 at this time；Being eventually adding deionized water colloidal sol plastid fraction into solution is 1%, is made
TiO2Colloidal sol.
(2) by TiO made from step (1)2Colloidal sol presses 50g/m2Discharge rate be sprayed at by tetrafluoroethylene fiber be made with a thickness of
On 9 μm of filter cloth, formed wet film, then by the filter cloth at 120 DEG C drying and sintering 12h.
(3) vanadic anhydride and ceria are added in deionized water, after stirring in solution vanadic anhydride concentration
For 0.1mol/L, the concentration of ceria is 0.01mol/L, and maceration extract is made.
(4) by step (2) through 6h in drying and sintering treated filter cloth is placed in step (3) maceration extract obtained, so
The filter cloth after dipping is roasted into 5h at 400 DEG C after dry 12h at 60 DEG C afterwards, catalytic decomposition layer is made.
(5) catalytic decomposition obtained in step (4) is placed on to the bearing being made by tetrafluoroethylene fiber with a thickness of 12 μm
Between layer, through fibre prickling working process, dedusting is made and decomposes the filtering material of bioxin.
Embodiment 2
It (1) is 30 by the amount of substance ratio of butyl titanate and ethanol solution:Volume fraction is added as 90% in butyl titanate by 1
In ethanol solution, at the uniform velocity stirring to mixed solution is creamy white；Then hydrochloric acid that mass fraction is 15% is added to the mixing
Solution clear, solution ph is 2.5 at this time；Being eventually adding deionized water colloidal sol plastid fraction into solution is 1.5%,
TiO is made2Colloidal sol.
(2) by TiO made from step (1)2Colloidal sol presses 100g/m2Discharge rate be sprayed at by poly- phthalimide fiber be made thickness
For on 10 μm of filter clothes, form wet film, then by the filter cloth at 160 DEG C drying and sintering 10h.
(3) vanadic anhydride and ceria are added in deionized water, after stirring in solution vanadic anhydride concentration
For 0.2mol/L, the concentration of ceria is 0.009mol/L, and maceration extract is made.
(4) by step (2) through 8h in drying and sintering treated filter cloth is placed in step (3) maceration extract obtained, so
The filter cloth after dipping is roasted into 4h at 500 DEG C after dry 10h at 70 DEG C afterwards, catalytic decomposition layer is made.
(5) catalytic decomposition obtained in step (4) is placed on to the bearing being made by poly- phthalimide fiber with a thickness of 13 μm
Between layer, through fibre prickling working process, dedusting is made and decomposes the filtering material of bioxin.
Embodiment 3
It (1) is 50 by the amount of substance ratio of butyl titanate and ethanol solution:Volume fraction is added as 90% in butyl titanate by 1
In ethanol solution, at the uniform velocity stirring to mixed solution is creamy white；Then hydrochloric acid that mass fraction is 15% is added to the mixing
Solution clear, solution ph is 2.5 at this time；Being eventually adding deionized water colloidal sol plastid fraction into solution is 2%, system
Obtain TiO2Colloidal sol.
(2) by TiO made from step (1)2Colloidal sol presses 150g/m2Discharge rate be sprayed at by glass fibre be made with a thickness of 11 μ
On the filter cloth of m, formed wet film, then by the filter cloth at 200 DEG C drying and sintering 8h.
(3) vanadic anhydride and ceria are added in deionized water, after stirring in solution vanadic anhydride concentration
For 0.4mol/L, the concentration of ceria is 0.007mol/L, and maceration extract is made.
(4) by step (2) through 10h in drying and sintering treated filter cloth is placed in step (3) maceration extract obtained, so
The filter cloth after dipping is roasted into 3h at 500 DEG C after dry 9h at 80 DEG C afterwards, catalytic decomposition layer is made.
(5) by step (4) it is obtained catalytic decomposition be placed on by glass fibre be made with a thickness of 14 μm supporting course it
Between, through fibre prickling working process, dedusting is made and decomposes the filtering material of bioxin.
Embodiment 4
It (1) is 50 by the amount of substance ratio of butyl titanate and ethanol solution:Volume fraction is added as 90% in butyl titanate by 1
In ethanol solution, at the uniform velocity stirring to mixed solution is creamy white；Then hydrochloric acid that mass fraction is 20% is added to the mixing
Solution clear, solution ph is 3 at this time；Being eventually adding deionized water colloidal sol plastid fraction into solution is 2.5%, system
Obtain TiO2Colloidal sol.
(2) by TiO made from step (1)2Colloidal sol presses 200g/m2Discharge rate be sprayed at by aramid fiber be made with a thickness of 12 μ
On the filter cloth of m, formed wet film, then by the filter cloth at 240 DEG C drying and sintering 6h.
(3) vanadic anhydride and ceria are added in deionized water, after stirring in solution vanadic anhydride concentration
For 0.5mol/L, the concentration of ceria is 0.005mol/L, and maceration extract is made.
(4) by step (2) through 12h in drying and sintering treated filter cloth is placed in step (3) maceration extract obtained, so
The filter cloth after dipping is roasted into 2h at 600 DEG C after dry 8h at 90 DEG C afterwards, catalytic decomposition layer is made.
(5) by step (4) it is obtained catalytic decomposition be placed on by glass fibre be made with a thickness of 16 μm supporting course it
Between, through fibre prickling working process, dedusting is made and decomposes the filtering material of bioxin.
Dedusting in embodiment 4 and the filtering material for decomposing bioxin are tested for the property, according to the process in Fig. 1,
Each parameter is configured, specially 1000ppm NO, 10%O2、400ppmSO2, dust additive amount is 1.5~2.5g/cm2,
1~10ng of bioxin TEQ/Nm3, with N2For carrier gas, gas flow rate is 1000~2000mL/min, and air speed is 1500~3000h-1.Test result is as shown in Figure 2 and Figure 3, and as shown in Figure 2, , bioxin catalytic decomposition efficiency is increased with temperature when less than 350 DEG C
It dramatically increases, at 300 DEG C, 1500h-1、3000h-1Two kinds of air speed decomposition efficiencies reach 93.8%, 89.9%；From the figure 3, it may be seen that small
When 350 DEG C, efficiency of dust collection is increased with temperature and is slightly reduced, at 300 DEG C, 1500h-1、3000h-1It is decomposed under two kinds of space velocities
Efficiency reaches 88.0%, 86.2%.So when industrial tail gas temperature is lower than 300 DEG C, dedusting and decomposition bioxin in the present invention
Filtering material there is excellent dedusting Yu bioxin effect is catalytically decomposed.
Filter cloth in the present invention as catalytic decomposition layer is by tetrafluoroethylene fiber, poly- phthalimide fiber, glass fibre or virtue
One or more of synthetic fibre fiber is made；Supporting course is fine by polytetrafluoroethylene fibre, poly- phthalimide fiber, glass fibre or aramid fiber
One or more of dimension is made.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (8)
1. a kind of preparation method of the filtering material of dedusting and decomposition bioxin, which is characterized in that include the following steps：
（1）Butyl titanate is added in ethanol solution, stirring to mixed solution is creamy white；Then hydrochloric acid is added to the mixing
Solution clear；It is eventually adding water, TiO is made2Colloidal sol；
（2）By step（1）TiO obtained2Colloidal sol is sprayed on filter cloth, forms wet film, sintering then is dried in the filter cloth
Processing；The condition of the drying and sintering processing is 6 ~ 12h of drying and sintering at 120 ~ 240 DEG C；
（3）Vanadic salts and cerium salt are added in deionized water, maceration extract is made；
（4）By step（2）It is middle that through drying and sintering, treated that filter cloth is placed in step（3）In 6 ~ 12h in maceration extract obtained, then
Filter cloth after dipping is roasted into 2 ~ 5h after dry 8 ~ 12h at 60 ~ 90 DEG C at 400 ~ 600 DEG C, catalytic decomposition layer is made；
（5）By step（4）In catalytic decomposition obtained be placed between supporting course, through fibre prickling working process, dedusting is made
And decompose the filtering material of bioxin.
2. the preparation method of a kind of dedusting as described in claim 1 and the filtering material for decomposing bioxin, which is characterized in that step
Suddenly（1）In, the amount of substance ratio of the butyl titanate and ethanol solution is 10 ~ 50:1, the volume fraction of the ethanol solution is
90%, the mass fraction 10 ~ 20% of the hydrochloric acid, solution ph is 2 ~ 3 after the mixed solution clear.
3. the preparation method of a kind of dedusting as described in claim 1 and the filtering material for decomposing bioxin, which is characterized in that step
Suddenly（1）In, the obtained TiO2Colloidal sol plastid fraction is 1 ~ 2.5% in colloidal sol.
4. the preparation method of a kind of dedusting as described in claim 1 and the filtering material for decomposing bioxin, which is characterized in that step
Suddenly（2）In, the TiO2The discharge rate of colloidal sol is 50 ~ 200 g/m2。
5. the preparation method of a kind of dedusting as described in claim 1 and the filtering material for decomposing bioxin, which is characterized in that step
Suddenly（2）In, the filter cloth is by one of polytetrafluoroethylene fibre, poly- phthalimide fiber, glass fibre or aramid fiber or several
Kind is made, with a thickness of 9 ~ 12 μm.
6. the preparation method of a kind of dedusting as described in claim 1 and the filtering material for decomposing bioxin, which is characterized in that step
Suddenly（3）In, the vanadic salts is vanadic anhydride；The cerium salt is ceria；The concentration of vanadic anhydride in the maceration extract
For 0.1 ~ 0.5 mol/L, the concentration of ceria is 0.005 ~ 0.01 mol/L.
7. the preparation method of a kind of dedusting as described in claim 1 and the filtering material for decomposing bioxin, which is characterized in that step
Suddenly（5）In, the supporting course by one of polytetrafluoroethylene fibre, poly- phthalimide fiber, glass fibre or aramid fiber or
It is several to be made, with a thickness of 12 ~ 16 μm.
8. as made from the preparation method of a kind of described in any item dedustings of claim 1 ~ 7 and the filtering material for decomposing bioxin
A kind of dedusting and the filtering material for decomposing bioxin.
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| CN109833770A (en) * | 2017-11-24 | 2019-06-04 | 中科天龙（厦门）环保股份有限公司 | A kind of bioactive molecule coupling cloth bag oxidation catalyst filter technique for incineration flue gas near-zero release |
| CN109091956B (en) * | 2018-10-15 | 2020-12-08 | 安徽元琛环保科技股份有限公司 | Preparation method of dedusting and denitration integrated filter material based on ceramic fibers |
| CN110354584A (en) * | 2019-08-27 | 2019-10-22 | 上海市凌桥环保设备厂有限公司 | A kind of preparation method of polytetrafluoroethylene (PTFE) catalysis filtrate |
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| "钒钛催化剂制备工艺对表面结构与催化分解气相二噁英的影响";向辉;《中国科技论文在线》;20110331;第220-225页 * |
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