CN107261647A - A kind of method that in-situ oxidation reducing process prepares composite filtering material - Google Patents
A kind of method that in-situ oxidation reducing process prepares composite filtering material Download PDFInfo
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- CN107261647A CN107261647A CN201710654608.XA CN201710654608A CN107261647A CN 107261647 A CN107261647 A CN 107261647A CN 201710654608 A CN201710654608 A CN 201710654608A CN 107261647 A CN107261647 A CN 107261647A
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- pps
- cts
- mno
- filtrates
- chitosan
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- 239000000463 material Substances 0.000 title claims abstract description 34
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 238000001914 filtration Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 10
- 230000003647 oxidation Effects 0.000 title claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 8
- 230000008569 process Effects 0.000 title claims description 6
- 239000000706 filtrate Substances 0.000 claims abstract description 59
- 229920001661 Chitosan Polymers 0.000 claims abstract description 33
- 229910000421 cerium(III) oxide Inorganic materials 0.000 claims abstract description 31
- 239000012286 potassium permanganate Substances 0.000 claims abstract description 14
- 229910004664 Cerium(III) chloride Inorganic materials 0.000 claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 11
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 239000000413 hydrolysate Substances 0.000 claims abstract description 5
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims abstract description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 20
- 239000003643 water by type Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- XWUCFAJNVTZRLE-UHFFFAOYSA-N 7-thiabicyclo[2.2.1]hepta-1,3,5-triene Chemical compound C1=C(S2)C=CC2=C1 XWUCFAJNVTZRLE-UHFFFAOYSA-N 0.000 claims 1
- 229920000265 Polyparaphenylene Polymers 0.000 claims 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims 1
- 150000003568 thioethers Chemical class 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 2
- 239000013618 particulate matter Substances 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- 239000006227 byproduct Substances 0.000 abstract 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 58
- 239000004734 Polyphenylene sulfide Substances 0.000 description 38
- 239000000243 solution Substances 0.000 description 14
- -1 transition-metal cation Chemical class 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 229910052723 transition metal Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 238000006479 redox reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- VYLVYHXQOHJDJL-UHFFFAOYSA-K cerium trichloride Chemical compound Cl[Ce](Cl)Cl VYLVYHXQOHJDJL-UHFFFAOYSA-K 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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
- B01D39/14—Other self-supporting filtering material ; Other filtering 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
- 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
- B01J31/32—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of manganese, technetium or rhenium
-
- B01J35/58—
-
- 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
Abstract
Chitosan-coated MnO is prepared the invention provides a kind of in-situ oxidation reducing process2‑Ce2O3The preparation method of/CTS@PPS composite filtering materials, belongs to PPS filter material surface modified function technical fields.PPS filtrates are surface-treated using chitosan solution, then KMnO4By CeCl3After the hydrolysising by-product HCl oxidations of solution, itself is reduced to MnO2, and hydrolysate Ce (OH)3Ce is obtained after follow-up drying course dehydration2O3, so as to obtain the MnO being firmly combined with PPS filtrates2‑Ce2O3Catalyst, obtains MnO2‑Ce2O3/ CTS@PPS composite filtering materials.The present invention can strengthen the mechanical strength of PPS filtrates, increase its service life, also cause filtrate to be difficult to be blocked by solid particulate matter, for SO2With certain absorbability so that catalyst life on PPS filtrates, with sulfur resistive characteristic.
Description
Technical field
The invention belongs to PPS filter material surface modified function technical fields, more particularly to a kind of in-situ oxidation reduction legal system
Standby Chitosan-coated MnO2-Ce2O3The method of/CTS@PPS composite filtering material.
Background technology
NO from stationary sourcexIt is one of main atmosphere pollution, not only results in ecological disruption, it is also serious to threaten people
Body health.Many countries are to NOxDischarge all formulated stringent legislation, at the same time, NOxRemoving sulfuldioxide has also been obtained widely
Research, application.Wherein, NH3Selective Catalytic Reduction of NO（NH3-SCR）Denitration technology is widely used.Commercial V- bases are urged at present
Agent has catalytic temperature window high（300-400℃）, the shortcomings of poisonous, mounting cost is high.Therefore, low temperature is developed（< 200 oC）
The excellent catalyst of denitration activity is critically important.
Except NOxOutside, some solid particulate matters（PM2.5, PM10）It is also predominant gas pollutant.It is main using solid in industry
Determine source bag-type dusting control PM discharge capacities, the core of the technology is filtrate, polyphenylene sulfide（PPS）Filtrate is because its own is fire-retardant, heat
Stability is good, turns into wide variety of filter pocket material the advantages of acid and alkali-resistance and strong aging ability.But, conventional filter bag is only single
Dedusting function, in consideration of it, the present invention to PPS filter material surfaces carry out Chitosan-coated processing, make it to transition-metal cation
Adsorptivity increase so that passing through in-situ oxidation reduction reaction in PPS filter material surfaces is made Chitosan-coated MnO2-Ce2O3/
CTS@PPS composite filtering materials so that while being firmly bonded between catalyst and PPS filtrates, assign PPS filtrates characterization of adsorption with
And more high mechanical properties.
The content of the invention
The invention aims to provide a kind of Chitosan-coated MnO2-Ce2O3The preparation method of/CTS@PPS composite filtering materials.Should
Preparation method mainly includes two parts：（One）Using acetic acid as solvent, chitosan is wrapped in PPS surfaces with ultrasonic immersing method；
（Two）Using chitosan as adsorbent, adsorption Ce is obtained3+The CTS@PPS filtrates of ion, KMnO4For oxidant, in CTS@PPS
Redox reaction occurs for filter material surface original position, obtains loading MnO2-Ce2O3The CTS@PPS filtrates of catalyst, i.e. MnO2-
Ce2O3/ CTS@PPS composite filtering materials.
To achieve the above object, the present invention is adopted the following technical scheme that：
Present invention seek to address that existing denitrating catalyst preparation method complexity, single PPS filtrate functions, catalyst and PPS filtrates
With reference to unstable problem.
The present invention is surface-treated using chitosan solution to PPS filtrates, it is had transition-metal cation good
Good adsorptivity, then KMnO4Aoxidize CeCl3While the hydrolysate HCl of solution, itself is reduced to MnO2, while CeCl3
The hydrolysate Ce (OH) of solution3Ce is obtained after follow-up drying course dehydration2O3, so as to obtain being firmly combined with PPS filtrates
MnO2-Ce2O3Catalyst, obtains MnO2-Ce2O3/ CTS@PPS composite filtering materials.
To achieve the above object, specific embodiments of the present invention are as follows：
MnO2-Ce2O3The preparation method of/CTS@PPS composite filtering materials：
A. 0.1g chitosan is dissolved in the acetic acid solution of 20 mL volume fractions 36%, ultrasonic 30min makes it be uniformly dispersed.
B. 0.7g PPS filtrates are placed in the uniform dispersion of step a formation, take out, dried at 60 DEG C after dipping 1h
Obtain coating the CTS PPS filtrates of chitosan film after dry 12h.
C. by 0.05 ~ 0.15g CeCl3It is dissolved in 50 mL deionized waters, uniformly solution is made in ultrasound, by above-mentioned steps
Gained CTS@PPS filtrates are placed into CeCl36h is stirred in solution.
D. 0.05 ~ 0.15 g KMnO is taken4It is dissolved in 50 mL deionized waters, ultrasound forms it into uniform KMnO4Solution,
Then in the mixed liquor for being added step-wise to step c, 80 DEG C continuously stir reaction 12h, obtain MnO2-Ce2O3/ CTS@PPS are answered
Close filtrate.
E. MnO step d obtained2-Ce2O3/ CTS@PPS composite filtering materials are with after distilled water flushing three times, and 110 DEG C dry
12h, obtains Chitosan-coated MnO2-Ce2O3/ CTS@PPS composite filtering materials.
The advantage of the present invention compared with prior art is：
Present invention chitosan solution（CTS）PPS filtrates are handled, increase its adsorptivity to transition-metal cation, so that
Adsorb transition-metal cation so that KMnO4Can occur in-situ oxidation reduction reaction in PPS filter material surfaces, generate MnO2-
Ce2O3Catalyst is simultaneously loaded on PPS filtrates securely, is obtained good dispersion and is tightly combined Catalytic Layer with filtrate；Because shell is poly-
Sugared film itself has excellent wearability, alkali resistance and sour absorbability, and the machinery that on the one hand can strengthen PPS filtrates is strong
Degree, increases its service life, on the other hand causes filtrate to be difficult to be blocked by solid particulate matter, for SO2With certain absorption
Property so that catalyst life on PPS filtrates, with sulfur resistive characteristic.
Brief description of the drawings
Fig. 1 PPS filtrates and MnO2-Ce2O3The tensile strength block diagram of/CTS@PPS composite denitration filtrates.
Fig. 2 PPS filtrates and MnO2-Ce2O3The pressure drop block diagram of/CTS@PPS composite denitration filtrates.
Embodiment
The following is several specific embodiments of the present invention, to further illustrate the present invention, but the present invention is not limited only to
This.
PPS acupunctures, spun lacing lacing felt filter material in the following example is from the three-dimensional silk Co., Ltd in Xiamen.
Embodiment 1
A. 0.1g chitosan is dissolved in 20 mL36%（v/v）In acetic acid solution, ultrasonic 30min makes it be uniformly dispersed.
B., PPS filtrates are cut into radius 2.5cm sequin, quality is 0.7g, are placed in the dispersed of step a formation
In liquid, 1h is impregnated, filtrate is then taken out, the PPS filtrates that 6h obtains coating chitosan film are dried at 60 DEG C.
C. by 0.05g CeCl3It is dissolved in 50 mL deionized waters, forms mixed solution, and by PPS filtrates obtained by step b
It is placed in one, continuously stirs 6h.
D. by 0.05 g KMnO4It is dissolved in 50 mL deionized waters, ultrasonic 30min forms it into uniform KMnO4Solution,
Then it is slowly added into step c mixed liquors, reaction 12h is continuously stirred at 80 DEG C.
E. by the distilled water flushing three times of PPS filtrates obtained by step d, it is placed in 110 DEG C of baking ovens and dries 12h, obtain chitosan
Coat MnO2-Ce2O3/ CTS@PPS composite filtering materials.
Denitration efficiency test condition：[NO]=[NH3]= 440 ppm, [O2]= 5%, N2For Balance Air, air speed is
WHSV = 1.35*106 ml.gcat -1.h-1, 80-180 DEG C of denitration efficiency reaches 35 ~ 60%.
Embodiment 2
A. 0.1g chitosan is dissolved in 20 mL36% acetic acid solutions, ultrasonic 30min makes it be uniformly dispersed.
B., PPS filtrates are cut into radius 2.5cm sequin, quality is 0.7g, are placed in the dispersed of step a formation
In liquid, 1h is impregnated, filtrate is then taken out, the PPS filtrates that 6h obtains coating chitosan film are dried at 60 DEG C.
C. by 0.10g CeCl3It is dissolved in 50 mL deionized waters, forms mixed solution, and by PPS filtrates obtained by step b
It is placed in one, continuously stirs 6h.
D. by 0.10 g KMnO4It is dissolved in 50 mL deionized waters, ultrasonic 30min forms it into uniform KMnO4Solution,
Then it is slowly added into step c mixed liquors, reaction 12h is continuously stirred at 80 DEG C.
E. by the distilled water flushing three times of PPS filtrates obtained by step d, it is placed in 110 DEG C of baking ovens and dries 12h, obtain chitosan
Coat MnO2-Ce2O3/ CTS@PPS composite filtering materials.
Denitration efficiency test condition：[NO]=[NH3]= 440 ppm, [O2]= 5%, N2For Balance Air, air speed is
WHSV = 8.97*105 ml.gcat -1.h-1, 80-180 DEG C of denitration efficiency reaches 40 ~ 70%.
Embodiment 3
A. 0.1g chitosan is dissolved in 20 mL36% acetic acid solutions, ultrasonic 30min makes it be uniformly dispersed.
B., PPS filtrates are cut into radius 2.5cm sequin, quality is 0.7g, are placed in the dispersed of step a formation
In liquid, 1h is impregnated, filtrate is then taken out, the PPS filtrates that 6h obtains coating chitosan film are dried at 60 DEG C.
C. by 0.15g CeCl3It is dissolved in 50 mL deionized waters, forms mixed solution, and by PPS filtrates obtained by step b
It is placed in one, continuously stirs 6h.
D. by 0.15 g KMnO4It is dissolved in 50 mL deionized waters, ultrasonic 30min forms it into uniform KMnO4Solution,
Then it is slowly added into step c mixed liquors, reaction 12h is continuously stirred at 80 DEG C.
E. by the distilled water flushing three times of PPS filtrates obtained by step d, it is placed in 110 DEG C of baking ovens and dries 12h, obtain chitosan
Coat MnO2-Ce2O3/ CTS@PPS composite filtering materials.
Denitration efficiency test condition：[NO]=[NH3]= 440 ppm, [O2]= 5%, N2For Balance Air, air speed is
WHSV = 6.73*105 ml.gcat -1.h-1, 80-180 DEG C of denitration efficiency reaches 40 ~ 85%.
Fig. 1 is PPS filtrates and MnO2-Ce2O3The tensile strength block diagram of/CTS@PPS composite denitration filtrates, is compared original
For PPS filtrates, ordinate, the transverse tensile strength of composite filtering material have been lifted, and show being coated with beneficial to filtrate machine for chitosan
The lifting of tool performance.
Fig. 2 is PPS filtrates and MnO2-Ce2O3The pressure drop block diagram of/CTS@PPS composite denitration filtrates, compares original PPS filters
For material, the permeability of composite filtering material has declined, and shows the cladding of chitosan and can influence the gas permeability of filtrate to a certain degree
Energy.
Claims (4)
1. a kind of in-situ oxidation reducing process prepares Chitosan-coated MnO2-Ce2O3The method of/CTS@PPS composite filtering material, it is special
Levy and be：It is surface-treated first with chitosan CTS solution poly-p-phenylene sulfide ether PPS filtrates, then by obtained CTS@PPS
Filtrate and CeCl3Solution reaction, then by KMnO4Aoxidize CeCl3The hydrolysate of solution, at this moment KMnO4Itself is reduced to MnO2,
And hydrolysate Ce (OH)3Ce is obtained after follow-up drying course dehydration2O3, so as to obtain being firmly combined with CTS@PPS filtrates
MnO2-Ce2O3Catalyst, obtains MnO2-Ce2O3/ CTS@PPS composite filtering materials.
2. a kind of in-situ oxidation reducing process according to claim 1 prepares Chitosan-coated MnO2-Ce2O3/ CTS@PPS's
The method of composite filtering material, it is characterised in that：Chitosan solution solvent for use is acetic acid.
3. a kind of in-situ oxidation reducing process according to claim 1 prepares Chitosan-coated MnO2-Ce2O3/ CTS@PPS's
The method of composite filtering material, it is characterised in that：Polyphenylene thioether PPS filtrate used is the original PPS filtrates singed.
4. a kind of in-situ oxidation reducing process according to claim 1 prepares Chitosan-coated MnO2-Ce2O3/ CTS@PPS's
The method of composite filtering material, it is characterised in that：Specific preparation method is as follows：
A. 0.1g chitosan is dissolved in the acetic acid solution of 20 mL volume fractions 36%, ultrasonic 30min makes it be uniformly dispersed；
B. 0.7g PPS filtrates are placed in the uniform dispersion of step a formation, are taken out after dipping 1h, 12h is dried at 60 DEG C
Obtain coating the CTS PPS filtrates of chitosan film afterwards；
C. by 0.05 ~ 0.15g CeCl3It is dissolved in 50 mL deionized waters, uniformly solution is made in ultrasound, by obtained by above-mentioned steps b
CTS@PPS filtrates are placed into CeCl36h is stirred in solution；
D. 0.05 ~ 0.15 g KMnO is taken4It is dissolved in 50 mL deionized waters, ultrasound forms it into uniform KMnO4Solution, then
In the mixed liquor for being added step-wise to step c, 80 DEG C continuously stir reaction 12h, obtain MnO2-Ce2O3/ CTS@PPS composite filters
Material；
E. MnO step d obtained2-Ce2O3/ CTS@PPS composite filtering materials are with after distilled water flushing three times, and 110 DEG C dry 12h,
Obtain Chitosan-coated MnO2-Ce2O3/ CTS@PPS composite filtering materials.
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| CN201710654608.XA CN107261647A (en) | 2017-08-03 | 2017-08-03 | A kind of method that in-situ oxidation reducing process prepares composite filtering material |
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| Publication Number | Publication Date |
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| CN107261647A true CN107261647A (en) | 2017-10-20 |
Family
ID=60075834
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211813A (en) * | 2018-02-12 | 2018-06-29 | 天津工业大学 | One kind has GO/TiO2The PPS microporous barriers of additive and low-temperature denitration catalytic membrane |
| WO2021128814A1 (en) * | 2019-12-25 | 2021-07-01 | 福州大学 | Method for preparing denitration anti-sulfur catalyst grown in situ on nitrogen-doped grid macromolecules |
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| CN103949115A (en) * | 2014-05-22 | 2014-07-30 | 福州大学 | Method for generating denitration catalyst on filter material in situ |
| CN106268030A (en) * | 2016-08-08 | 2017-01-04 | 浙江省纺织测试研究院 | A kind of corrosion-proof high-temp flue gas composite filter material 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 |
| CN106731226A (en) * | 2016-12-09 | 2017-05-31 | 福州大学 | One step in-situ synthesis prepare the method that binary denitration sulfur resistant catalyst loads filtrate |
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2017
- 2017-08-03 CN CN201710654608.XA patent/CN107261647A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949115A (en) * | 2014-05-22 | 2014-07-30 | 福州大学 | Method for generating denitration catalyst on filter material in situ |
| CN106268030A (en) * | 2016-08-08 | 2017-01-04 | 浙江省纺织测试研究院 | A kind of corrosion-proof high-temp flue gas composite filter material and preparation method thereof |
| CN106731226A (en) * | 2016-12-09 | 2017-05-31 | 福州大学 | One step in-situ synthesis prepare the method that binary denitration sulfur resistant catalyst loads filtrate |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211813A (en) * | 2018-02-12 | 2018-06-29 | 天津工业大学 | One kind has GO/TiO2The PPS microporous barriers of additive and low-temperature denitration catalytic membrane |
| CN108211813B (en) * | 2018-02-12 | 2020-12-22 | 天津工业大学 | Has GO/TiO2PPS microporous membrane of additive and low-temperature denitration catalytic membrane |
| WO2021128814A1 (en) * | 2019-12-25 | 2021-07-01 | 福州大学 | Method for preparing denitration anti-sulfur catalyst grown in situ on nitrogen-doped grid macromolecules |
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Application publication date: 20171020 |