CN107081007A - A kind of new oxidants prepare functionalization denitration sulfur resistive composite filtering material - Google Patents
A kind of new oxidants prepare functionalization denitration sulfur resistive composite filtering material Download PDFInfo
- Publication number
- CN107081007A CN107081007A CN201710502017.0A CN201710502017A CN107081007A CN 107081007 A CN107081007 A CN 107081007A CN 201710502017 A CN201710502017 A CN 201710502017A CN 107081007 A CN107081007 A CN 107081007A
- Authority
- CN
- China
- Prior art keywords
- filtering material
- polyphenylene sulfide
- composite filtering
- pps
- sulfur resistive
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- 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
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
-
- 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
-
- 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
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0208—Single-component fibres
-
- 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
-
- 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
-
- 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
- B01D2239/12—Special parameters characterising the filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention belongs to feature composite filtering material technical field, and in particular to prepare functionalization denitration sulfur resistive composite filtering material to a kind of new and effective oxidant.The present invention utilizes Surfactant SDS（SDS）The surface of poly-p-phenylene sulfide ether PPS filtrates carries out activation process, using ammonium metavanadate as strong oxidizer, occurs redox reaction on polyphenylene sulfide surface, makes the binary catalyst product V SnO after polyphenylene sulfide Surface Creation redoxx, so that the composite filtering material with NO_x Reduction by Effective functionalization is made.This prepares environment and carried out in gentle environment, and operation is simple, and reaction is quick, does not have specific requirement to reaction vessel, and synthetic does not pollute to environment, and the filter material surface load capacity after synthesis is uniform and firm, and out of stock rate is high.
Description
Technical field
The invention belongs to feature composite filtering material technical field, and in particular to prepare function to a kind of new and effective oxidant
Change denitration sulfur resistive composite filtering material.
Background technology
A large amount of with industrial all-round developing and fossil fuel use, and China's atmosphere pollution situation is increasingly serious,
Wherein atmosphere pollution is main to be existed in two kinds of forms of particulate contaminants and gaseous state shape pollutant.Particulate contaminants it is main with
Based on flue dust, gaseous state shape pollutant contains nitrogen oxides, sulfur dioxide, carbon monoxide, nitrogen oxides and hydrogen-containing gas etc..China
The rapid economic development stage is in, demand for energy is very big, especially the demand to electric power is even more to be growing on and on.And China with
The energy resource structure that coal is the theme, determines China's electric power based on thermal power generation, and power plant is largely coal-burning power plant.Coal-fired electricity
Factory can produce substantial amounts of pollutant, such as dust, sulfur dioxide and NO in addition to ensureing rapid economic developmentxToxic gas etc..
It is gas denitrifying technology to burn post processing gas denitrifying technology, or flue gas NOx Evolution technology, it is NOx Control
Most important method in measure, its technique can be divided into two kinds of wet method and dry method.Wet denitration technology mainly includes alkali or sulfuric acid
Absorption process, Absorption via Chemical Complexation, oxidative absorption method and oxidation-reduction method etc., Dry denitration technology then include absorption method, absorption process, etc.
Gas ions activation method, catalytic decomposition and catalytic reduction method.Compared with wet method, the major advantage of Dry denitration technology is：Equipment
With opertions engineering it is simple, invest low and removing NOx Efficiency high；Without offal treatment, secondary pollution is not easily caused, therefore turn into
The purified treatment NO of domestic and international most studyx Technology.Wherein again with SCR (selective
Catalytic reduction, SCR) technology most prospects for commercial application.It was verified that SCR method reaction temperatures are moderate, choosing
Selecting property is good, and denitration rate is high (being more than 90%), so having turned into control NOx The international mainstream technology of discharge.
Polyphenylene sulfide（PPS）Filtrate is the preferred material on current coal-fired boiler in power plant and waste incineration filter bag, because of its tool
There are high temperature resistant, resistant to hydrolysis, high fire-retardance, the excellent properties of acid and alkali-resistance.However, the temperature window of commercial denitrating catalyst is in 300-
400 DEG C of high-temperature area, far above the temperature in use of polyphenyl thioether filter material（170 DEG C or so）.In addition, inert point of polyphenylene sulfide
Minor structure also makes its surface be difficult to fix catalyst granules.Therefore, the binary denitrating catalyst of efficient cryogenic is researched and developed
And its research emphasis turned into the complex technique of filtrate.
SO2It is the proper constituent in coal-fired flue-gas, therefore during low-temperature SCR catalyst is studied, SO2To catalyst
Performance impact be important research content under given conditions, SO2Certain facilitation can be played to SCR processes, so
Some scholars are SO4 2-It is introduced into SCR catalyst system to study it to the influence produced by catalyst performance；But also have very
Many studies have shown that catalyst are in SO2Serious inactivation under existence condition.The V-SnO in filter material surface of invention generation hereinxCatalysis
Agent has excellent sulfur resistive ability.
The content of the invention
The invention aims to prepare efficient denitration sulfur resistive binary catalyst and polyphenylene sulfide（PPS）It is combined
Method, by redox mode, catalyst is firmly bound to polyphenylene sulfide by a step（PPS）Surface, due to being life in situ
Into making V-SnOxCatalyst is uniform and firm in PPS area loads.
The technical solution adopted by the present invention is：
To handle polyphenylene sulfide through surfactant（PPS）For catalyst carrier, efficient V- is prepared using oxidation-reduction method
SnOx/ PPS denitration sulfur resistive composite filtering materials.
Described filtrate is polyphenylene sulfide needle punched filter material, be using polyphenylene sulfide fibre as raw material, through shredding, compound batch mixing,
Combing, lapping, acupuncture, thermal finalization and press polish of singing are prepared from.
More specifically, the composite filtering material of load binary NO_x Reduction by Effective sulfur resistant catalyst of the present invention can be by the following method
Prepare：
（1）The circular polyphenylene sulfide fibres of a piece of 0.6g are cut, PPS is then added to 0.0273g surfactant sodium dodecyl base sulphur
Sour sodium（SDS）In solution, and stirrer is put into, at room temperature ultrasound 2h；
（2）According to equation：4NH4VO3+2SnCl4=4VO2+2SnO2+2Cl2+4NH4Cl, butter of tin and ammonium metavanadate rub
You are than being 1:2.
（3）Precise butter of tin, while using deionized water as solvent, preparing certain mass fraction butter of tin molten
Liquid.Then by polyphenylene sulfide（PPS）It is put into the solution, and normal temperature ultrasound 2h, make polyphenylene sulfide（PPS）Surface is by enough
Sn4+Surround.
（4）Ammonium metavanadate solution is configured, step is added dropwise to dropwise（2）In by Sn4+The solution of the PPS filtrates of encirclement
In, the stirring reaction 2h in 70 DEG C of water-bath takes out the PPS reacted, its table is cleaned with deionized water and ethanol after reaction
Face, until the solvent on its surface is cleaned up, is dried in 102 DEG C of baking oven afterwards, that is, surface is made high by Layered dual
Imitate the polyphenylene sulfide of the catalyst parcel of denitration composite sulfur resisting（PPS）.
Wherein the mass ratio of ammonium metavanadate and polyphenylene sulfide is 1：0.2 or 1：0.4 or 1：0.6 or 1：0.8.
The composite filtering material can be simultaneously as dedusting agent and denitrfying agent application, and the load capacity of catalyst is more than 5mg/cm2Shi Dou
Preferable denitration sulfur resistance can be obtained.
The remarkable advantage of the present invention is：
The present invention is first with Surfactant SDS（SDS）Lived on the surface of poly-p-phenylene sulfide ether PPS filtrates
Change is handled, and makes its surface by SDS SO4 -Group is surrounded, afterwards SO4 -With Sn ions electrostatic attraction effect occurs for group, by tin
Ion is firmly adsorbed in filter material surface, so as to play the effect of activation.Again using ammonium metavanadate as strong oxidizer, in polyphenylene sulfide
Redox reaction occurs for surface, makes the binary catalyst product V-SnO after polyphenylene sulfide Surface Creation redoxx, so as to make
There must be the composite filtering material of NO_x Reduction by Effective functionalization.
The advantage of the method has：
1st, synthesis is carried out in gentle environment, and reaction synthesis process and operation are all very simple, and its reaction is quick, to reaction
Container does not have specific requirement, and synthetic does not pollute to environment, and the filter material surface load capacity after synthesis is uniform and firm,
Out of stock rate is high.
2nd, the catalyst VO produced in building-up process2It can reclaim and use, environment-friendly high-efficiency.And it has in various fields
Effect, the industry such as metallurgical, chemical industry, smelting ferrovanadium is used as alloy addition.
3rd, because the oxidisability of ammonium metavanadate is better than potassium permanganate, the reaction time can be greatlyd save, half can be shortened
Time.
4th, because the oxidisability of ammonium metavanadate is better than potassium permanganate, it is not necessary to too high reaction temperature come accelerate reaction, institute
It is safe and efficient so that energy can be saved.
Brief description of the drawings
In the test of Fig. 1 catalyst activities, tubular type SCR reactor assembly figures are made by oneself.In figure, 1 is vapour source；2 be pressure-reducing valve；3
For mass flowmenter；4 be blender；5 be air preheater；6 be catalytic bed；7 be filtrate；8 be flue gas analyzer；Fig. 2 is real
Apply the scanning electron microscope (SEM) photograph of the sample of example 2；Fig. 3 is XPS analysis figure：A figures in Fig. 3 are the b in the XPS analysis figure of barium oxide, Fig. 3
Figure is the XPS analysis figure of tin-oxide；Fig. 4 is that the sample catalytic stability of embodiment 2 can be tested.
, embodiment
The following is several specific embodiments of the present invention, the present invention is further illustrated, but the present invention is not limited only to this.
PPS acupuncture lacing felt filter materials in the following example, which are prepared as follows, to be obtained：Using polyphenylene sulfide (PPS) fiber as original
Material, acupuncture lacing felt filter material is prepared through shredding, compound batch mixing, combing, lapping, acupuncture, thermal finalization and press polish of singing.
Embodiment 1
0.0273g lauryl sodium sulfate is weighed first（SDS）It is added in 50mL deionized water, is made into activation process molten
Liquid.Then a piece of polyphenylene sulfide is cut（PPS）And weigh, claim to obtain m (PPS)=0.600g, it is ultrasonically treated in 100W ultrasonic machine
2h。
Then butter of tin 0.5343g is added in above-mentioned activation process solution（Butter of tin and PPS mass ratio is
0.2）, stir, then matched somebody with somebody solution ultrasound to solute is completely dissolved.Treat the enough Sn of PPS adsorptions4+Cation
Afterwards, move into water-bath, be now reconfigured at the ammonium metavanadate solution that concentration is 0.02M（Ammonium metavanadate and PPS mass ratio is
0.2）, obtained solution is poured slowly into and is placed with polyphenylene sulfide (PPS) beaker, 2h is reacted at 70 DEG C, until solution is by powder
Discoloration is clarification, now shows that reaction terminates, and takes out filtrate and is cleaned with deionized water and ethanol to no solvent residue, is put in baking oven
In 102 DEG C of dry 3h it is to be tested.The Mass Calculation of butter of tin is as follows：0.600×0.2÷2÷117×350.5=0.179g；
The concentration of ammonium metavanadate is calculated as follows：0.600×0.2÷117÷0.05=0.02.
The denitration performance of composite filtering material is evaluated in self-control tubular type SCR reactors.NO and NH3Volume fraction is
0.05 %, O2Volume fraction is 5 %, and remaining is N2, gas flow rate is 700mLmin-1, temperature setting is 140 DEG C, uses Britain
It is 72% that KM940 flue gas analyzers, which measure denitration rate,；Temperature setting is 160 DEG C, and denitration rate is 87%, and temperature setting is 180 DEG C, is taken off
Nitre rate is 98%.And 30min test sulfur resistive abilities are spaced at 180 DEG C, last out of stock rate is basically stable at 40%.
Embodiment 2
0.0273g lauryl sodium sulfate is weighed first（SDS）It is added in 50mL deionized water, is made into activation process molten
Liquid.Then a piece of polyphenylene sulfide is cut（PPS）And weigh, claim to obtain m (PPS)=0.600g, it is ultrasonically treated in 100W ultrasonic machine
2h。
Then butter of tin 0.359g is added in above-mentioned activation process solution（Butter of tin and PPS mass ratio is
0.4）, stir, then matched somebody with somebody solution ultrasound to solute is completely dissolved.Treat the enough Sn of PPS adsorptions4+Cation
Afterwards, move into water-bath, be now reconfigured at the ammonium metavanadate solution that concentration is 0.04M（Ammonium metavanadate and PPS mass ratio is
0.4）, obtained solution is poured slowly into and is placed with polyphenylene sulfide (PPS) beaker, 2h is reacted at 70 DEG C, until solution is by powder
Discoloration is clarification, now shows that reaction terminates, and takes out filtrate and is cleaned with deionized water and ethanol to no solvent residue, is put in baking oven
In 102 DEG C of dry 3h it is to be tested.The Mass Calculation of butter of tin is as follows：0.600×0.4÷2÷117×350.5=0.359g；
The concentration of ammonium metavanadate is calculated as follows：0.600×0.4÷117÷0.05=0.04.
The denitration performance of composite filtering material is evaluated in self-control tubular type SCR reactors.NO and NH3Volume fraction is
0.05 %, O2Volume fraction is 5 %, and remaining is N2, gas flow rate is 700mLmin-1, temperature setting is 140 DEG C, uses Britain
It is 81% that KM940 flue gas analyzers, which measure denitration rate,；Temperature setting is 160 DEG C, and denitration rate is 92%, and temperature setting is 180 DEG C, is taken off
Nitre rate is 100%.And 30min test sulfur resistive abilities are spaced at 180 DEG C, last out of stock rate is basically stable at 45%.
Embodiment 3
0.0273g lauryl sodium sulfate is weighed first（SDS）It is added in 50mL deionized water, is made into activation process molten
Liquid.Then a piece of polyphenylene sulfide is cut（PPS）And weigh, claim to obtain m (PPS)=0.600g, it is ultrasonically treated in 100W ultrasonic machine
2h。
Then butter of tin 0.537g is added in above-mentioned activation process solution（Butter of tin and PPS mass ratio is
0.6）, stir, then matched somebody with somebody solution ultrasound to solute is completely dissolved.Treat the enough Sn of PPS adsorptions4+Cation
Afterwards, move into water-bath, be now reconfigured at the ammonium metavanadate solution that concentration is 0.06M（Ammonium metavanadate and PPS mass ratio is
0.6）, obtained solution is poured slowly into and is placed with polyphenylene sulfide (PPS) beaker, 2h is reacted at 70 DEG C, until solution is by powder
Discoloration is clarification, now shows that reaction terminates, and takes out filtrate and is cleaned with deionized water and ethanol to no solvent residue, is put in baking oven
In 102 DEG C of dry 3h it is to be tested.The Mass Calculation of butter of tin is as follows：0.600×0.6÷2÷117×350.5=0.537g;
The concentration of ammonium metavanadate is calculated as follows：0.600×0.6÷117÷0.05=0.06.
The denitration performance of composite filtering material is evaluated in self-control tubular type SCR reactors.NO and NH3Volume fraction is
0.05 %, O2Volume fraction is 5 %, and remaining is N2, gas flow rate is 700mLmin-1, temperature setting is 140 DEG C, uses Britain
It is 86% that KM940 flue gas analyzers, which measure denitration rate,；Temperature setting is 160 DEG C, and denitration rate is 100%.And at 180 DEG C of intervals
30min tests sulfur resistive ability, and last out of stock rate is basically stable at 50%.
Embodiment 4
0.0273g lauryl sodium sulfate is weighed first（SDS）It is added in 50mL deionized water, is made into activation process molten
Liquid.Then a piece of polyphenylene sulfide is cut（PPS）And weigh, claim to obtain m (PPS)=0.600g, it is ultrasonically treated in 100W ultrasonic machine
2h。
Then butter of tin 0.716g is added in above-mentioned activation process solution（Butter of tin and PPS mass ratio is
0.8）, stir, then matched somebody with somebody solution ultrasound to solute is completely dissolved.Treat the enough Sn of PPS adsorptions4+Cation
Afterwards, move into water-bath, be now reconfigured at the ammonium metavanadate solution that concentration is 0.08M（Ammonium metavanadate and PPS mass ratio is
0.8）, obtained solution is poured slowly into and is placed with polyphenylene sulfide (PPS) beaker, 2h is reacted at 70 DEG C, until solution is by powder
Discoloration is clarification, now shows that reaction terminates, and takes out filtrate and is cleaned with deionized water and ethanol to no solvent residue, is put in baking oven
In 102 DEG C of dry 3h it is to be tested.The Mass Calculation of butter of tin is as follows：0.600×0.8÷2÷117×350.5=0.716g;
The concentration of ammonium metavanadate is calculated as follows：0.600×0.8÷117÷0.05=0.08.
The denitration performance of composite filtering material is evaluated in self-control tubular type SCR reactors.NO and NH3Volume fraction is
0.05 %, O2Volume fraction is 5 %, and remaining is N2, gas flow rate is 700mLmin-1, temperature setting is 140 DEG C, uses Britain
It is 80% that KM940 flue gas analyzers, which measure denitration rate,；Temperature setting is 160 DEG C, and denitration rate is that 91% temperature setting is 180 DEG C, is taken off
Nitre rate is 100%.And 30min test sulfur resistive abilities are spaced at 180 DEG C, last out of stock rate is basically stable at 47%.
Activity rating：Catalyst is evaluated in self-control tubular type SCR reactors.Reactor is external electric, reaction
Thermocouple measuring temperature is placed by pipe beds, experimental provision flow is as shown in Figure 1.Constituted with steel gas cylinder simulated flue gas,
Flue gas includes NO, O2、N2、NH3For reducing gas, NO and NH3Volume fraction is 0.04-0.06%, O2Volume fraction is 4-
6%, remaining is N2, gas flow rate is 700mLmin-1, temperature control is between 120-200 DEG C, and gas flow, composition are by quality
Flowmeter is adjusted and controlled.Gas analysis uses Britain's KM940 flue gas analyzers, in order to ensure the stability of data and accurate
Property, each operating mode at least stablizes 30min.
Influence of the various factors of table 1 to composite filtering material denitration rate
As can be seen from Table 1, when 140 DEG C, with being continuously increased for mass ratio, denitration rate first increases with occurring in that
Plus after reduction trend, 1:0.6 occurs in that maximum.And to 160 DEG C, 100% denitration rate has all been reached substantially.
And show best sulfur resistance at 180 DEG C.
In order to analyze the composition and valence state of element contained by composite filtering material area load thing, we are to V-SnOx/ PPS composite filters
Material has carried out XPS signs, and its result is as shown in Figure 3.The V2p in a figures in Fig. 3, barium oxide3/2Peak value is
517.40eV its value is between V5+And V4+Between i.e. V2O5And VO2Between and close to V4+It is thus determined that VO in prepared film2It should be
Main component.From the b figures in Fig. 3, there is two basic change energy peak value in Sn3d XPS peaks, 496.05eV corresponds to Sn4+
3d3/2, 487.5eV is corresponding to Sn4+3d3/2, with standard SnO2Peak value it is corresponding.It can thus be appreciated that V-SnO on PPS compositesx
The composition of catalyst is VO2And SnO2。
Fig. 4 is the test chart that denitration rates of the V-SnOx/PPS at 180 DEG C changes with time.As seen from the figure, in 0-10h
Testing time in, the denitration activity of V-SnOx/PPS composite filtering materials drops to 92.5% or so by initial 100%, may infer that
Going out composite filtering material has preferable bond strength.
Claims (6)
1. a kind of new oxidants prepare functionalization denitration sulfur resistive composite filtering material, it is characterised in that：Described composite filtering material, be with
Polyphenylene thioether PPS filtrate is functionalization material matrix, and ammonium metavanadate is oxidant, and V-SnO is gone out in PPS superficial growthsxBinary
Layered laminate catalyst.
2. a kind of new oxidants according to claim 1 prepare functionalization denitration sulfur resistive composite filtering material, it is characterised in that：
The PPS filtrates are polyphenylene sulfide needle punched filter material, are using polyphenylene sulfide fibre as raw material, through shredding, compound batch mixing, combing, paving
Net, acupuncture, thermal finalization and press polish of singing are prepared from, 37 μm of average pore size.
3. a kind of new oxidants according to claim 1 prepare functionalization denitration sulfur resistive composite filtering material, it is characterised in that：
The preparation method of described composite filtering material is：
（1）Precise 0.0273g lauryl sodium sulfate, is dissolved in 50mL deionized waters；Cut a piece of 0.6g circle
Polyphenylene sulfide, is added in above-mentioned solution by polyphenylene sulfide fibre afterwards, and is put into stirrer, at room temperature ultrasound 2 hours；
（2）Butter of tin solution is prepared, polyphenylene sulfide, and normal temperature ultrasound 2h is then added, makes polyphenylene sulfide surface enough
Sn4+Surround；
（3）Ammonium metavanadate solution is configured, step is added dropwise to dropwise（2）In by Sn4+The PPS filtrate solution of encirclement, at 70 DEG C
Water-bath in stirring reaction 2h, the PPS that react is taken out after reaction, its surface is cleaned with deionized water and ethanol, until general
The solvent on its surface is cleaned up, and is dried afterwards in 102 DEG C of baking oven, obtains surface compound anti-by Layered dual NO_x Reduction by Effective
The polyphenylene sulfide of the catalyst parcel of sulphur.
4. a kind of new oxidants according to claim 3 prepare functionalization denitration sulfur resistive composite filtering material, it is characterised in that：
The mol ratio of butter of tin and ammonium metavanadate is 1:2.
5. a kind of new oxidants according to claim 3 prepare functionalization denitration sulfur resistive composite filtering material, it is characterised in that：
The mass ratio of ammonium metavanadate and polyphenylene sulfide is 1：0.2 or 1：0.4 or 1：0.6 or 1：0.8.
6. a kind of new oxidants according to claim 5 prepare functionalization denitration sulfur resistive composite filtering material, it is characterised in that：
The ratio between mass number of ammonium metavanadate and polyphenylene sulfide is 1：0.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502017.0A CN107081007A (en) | 2017-06-27 | 2017-06-27 | A kind of new oxidants prepare functionalization denitration sulfur resistive composite filtering material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502017.0A CN107081007A (en) | 2017-06-27 | 2017-06-27 | A kind of new oxidants prepare functionalization denitration sulfur resistive composite filtering material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107081007A true CN107081007A (en) | 2017-08-22 |
Family
ID=59606496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710502017.0A Pending CN107081007A (en) | 2017-06-27 | 2017-06-27 | A kind of new oxidants prepare functionalization denitration sulfur resistive composite filtering material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107081007A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08187430A (en) * | 1995-01-06 | 1996-07-23 | Hitachi Zosen Corp | Sulfur dioxide oxidizing catalyst composing material |
| CN102205240A (en) * | 2011-06-13 | 2011-10-05 | 华北电力大学 | SCR (Selective Catalyctic Reduction) smoke denitration catalyst based on TiO2-SnO2 composite barrier and preparation method thereof |
| CN104069852A (en) * | 2014-07-02 | 2014-10-01 | 宋华 | Low-temperature sulphur-resisting denitration catalyst and preparation method thereof |
| CN106512552A (en) * | 2016-12-23 | 2017-03-22 | 福州大学 | Ternary denitration sulfur-resistant catalyst in-situ loaded compound filter material and preparation method thereof |
-
2017
- 2017-06-27 CN CN201710502017.0A patent/CN107081007A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08187430A (en) * | 1995-01-06 | 1996-07-23 | Hitachi Zosen Corp | Sulfur dioxide oxidizing catalyst composing material |
| CN102205240A (en) * | 2011-06-13 | 2011-10-05 | 华北电力大学 | SCR (Selective Catalyctic Reduction) smoke denitration catalyst based on TiO2-SnO2 composite barrier and preparation method thereof |
| CN104069852A (en) * | 2014-07-02 | 2014-10-01 | 宋华 | Low-temperature sulphur-resisting denitration catalyst and preparation method thereof |
| CN106512552A (en) * | 2016-12-23 | 2017-03-22 | 福州大学 | Ternary denitration sulfur-resistant catalyst in-situ loaded compound filter material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Simultaneous removal of NO and SO2 from flue gas by ozone oxidation and NaOH absorption | |
| CN102366722B (en) | Denitrition catalyst with mercury removal effect and its preparation method | |
| CN106731226B (en) | The method that one step in-situ synthesis prepares binary denitration sulfur resistant catalyst load filtrate | |
| CN102921278B (en) | Method for collaboratively controlling multi-pollutants produced from waste incineration smokes | |
| CN102600850B (en) | A kind of preparation method of the catalyst of elimination cos and Carbon bisulfide simultaneously | |
| Yang et al. | Catalytic oxidation of elemental mercury in coal-combustion flue gas over the CuAlO2 catalyst | |
| Wan et al. | Comparison of elemental mercury oxidation across vanadium and cerium based catalysts in coal combustion flue gas: catalytic performances and particulate matter effects | |
| Wang et al. | Novel promotion of sulfuration for Hg0 conversion over V2O5–MoO3/TiO2 with HCl at low temperatures: Hg0 adsorption, Hg0 oxidation, and Hg2+ adsorption | |
| CN104772138B (en) | MnOx/graphene low-temperature SCR flue gas denitration catalyst, preparation method and applications thereof | |
| CN103191603A (en) | Catalytic filtration material with denitration and dust removal functions and preparation method of catalytic filtration material | |
| Ji et al. | Recent progress on the clean and sustainable technologies for removing mercury from typical industrial flue gases: a review | |
| Balasundaram et al. | Technology for mercury removal from flue gas of coal based thermal power plants: A comprehensive review | |
| CN106076417A (en) | Charcoal base heteropolyacid catalyst and preparation and application method thereof for low-temperature flue gas simultaneous SO_2 and NO removal | |
| CN106111118A (en) | A kind of preparation method and applications of denitrating catalyst | |
| CN107261831A (en) | Composite filtering material of original position load denitration sulfur resistant catalyst and preparation method thereof | |
| Zhou et al. | Effect of molybdenum incorporation on the activity of a magnetic Fe–Mn sorbent for the capture of elemental mercury | |
| CN107158799B (en) | A kind of composite filtering material fiber and preparation method for SCR dedusting denitration | |
| CN107008338B (en) | A kind of method of plasma method preparation SCO denitration catalyst | |
| CN104148095B (en) | A kind of denitration demercuration Catalysts and its preparation method | |
| CN106731234A (en) | A kind of preparation method of binary denitration sulfur resistant catalyst composite filtering material | |
| CN106925034A (en) | A kind of preparation method of denitration function polyphenylene sulfide composite filtering material | |
| CN107081007A (en) | A kind of new oxidants prepare functionalization denitration sulfur resistive composite filtering material | |
| CN111939922B (en) | Catalyst for catalyzing hydrogen peroxide to oxidize NO, preparation method and application thereof | |
| CN102274733A (en) | Catalyst used for catalytically oxidizing NO and preparation method thereof | |
| Feng et al. | Two birds with one stone: copper-based adsorbents used for photocatalytic oxidation of Hg0 (Gas) after removal of PH3 |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170822 |