CN105457627B - A kind of glass fabric Supported Manganese base low temperature SCR denitration catalyst and preparation method thereof - Google Patents
A kind of glass fabric Supported Manganese base low temperature SCR denitration catalyst and preparation method thereof Download PDFInfo
- Publication number
- CN105457627B CN105457627B CN201510905904.3A CN201510905904A CN105457627B CN 105457627 B CN105457627 B CN 105457627B CN 201510905904 A CN201510905904 A CN 201510905904A CN 105457627 B CN105457627 B CN 105457627B
- Authority
- CN
- China
- Prior art keywords
- glass fabric
- low temperature
- scr denitration
- manganese
- preparation
- 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.)
- Active
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 55
- 239000011521 glass Substances 0.000 title claims abstract description 55
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 52
- 239000011572 manganese Substances 0.000 title claims abstract description 52
- 239000003054 catalyst Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000003292 glue Substances 0.000 claims abstract description 23
- 150000002696 manganese Chemical class 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims abstract description 8
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- 230000007797 corrosion Effects 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 20
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 18
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 229910016978 MnOx Inorganic materials 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 3
- GEYXPJBPASPPLI-UHFFFAOYSA-N manganese(III) oxide Inorganic materials O=[Mn]O[Mn]=O GEYXPJBPASPPLI-UHFFFAOYSA-N 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims 2
- 238000007654 immersion Methods 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 239000003365 glass fiber Substances 0.000 abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VQWQYXBWRCCZGX-UHFFFAOYSA-N acetic acid;manganese Chemical compound [Mn].CC(O)=O.CC(O)=O VQWQYXBWRCCZGX-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 125000005909 ethyl alcohol group Chemical group 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940071125 manganese acetate Drugs 0.000 description 1
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- 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
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
-
- B01J35/30—
-
- 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
Abstract
The invention discloses a kind of preparation method of glass fabric Supported Manganese base low temperature SCR denitration catalyst, including the pretreatment of glass fabric, the technique for being loaded to manganese-based low-temperature SCR denitration on glass fabric with low temperature glue using the load of low-temperature denitration manganese series catalyzer, heat treatment and infrared radiation processing etc..Glass fabric Supported Manganese base low temperature SCR denitration catalyst prepared by the present invention had both remained that glassfiber insulation is good, heat resistance is strong, corrosion resistance is good and the features such as high mechanical strength, catalyst Load Balanced on the glass fibers in the material that is prepared simultaneously, firmness is preferable, and under cryogenic (80~180 DEG C) there is good denitration performance (reaching as high as 98%), have broad application prospects.
Description
Technical field
The invention belongs to industrial waste gas processing and environment protection catalytic Material Field, and in particular to a kind of glass fabric Supported Manganese
Base low temperature SCR denitration catalyst and preparation method thereof.
Background technology
Nitrogen oxides (NOx) it can not only cause the formation of acid rain, and can be reacted with ozone etc., form photochemical fog.
At present, photochemical fog turns into the important atmosphere pollution for being only second to pellet and sulfur dioxide.It is noticeable
It is, with NOxDischarge capacity increases year by year, and Regional Acid Subsidence trend constantly deteriorates, secondary aerosol species ozone (O in air3) and it is fine
Pellet (PM 2.5) occupy it is high-leveled and difficult under, health and ecological environment receive grave danger.The control of nitrogen oxides
It is imperative with administering.
In numerous denitration technologies, selective catalytic reduction (selective catalytic reduction, SCR)
It is a more promising denitration technology.This technology refers under catalyst and oxygen existence condition, using reducing agent (such as
NH3、H2, CO or hydrocarbon etc.) selectively by NOxIt is catalysed and reduced into N2And H2O.The core of SCR denitration technology is exactly
SCR denitration.It can be divided into high temperature SCR denitration according to the needs of industrial temperature and low temperature SCR denitration is urged
Agent.Wherein, SCR low-temperature denitration catalyst of the Applicable temperature scope within 200 DEG C because its have good economic benefit with
Social benefit obtained it is widely studied, SCR low-temperature denitration catalysts active component is applied and studied at present it is more be manganese and
Its oxide.
Carrier can make manufactured catalyst have suitable shape, size and mechanical strength, to meet industrial reactor
Operation requires；Carrier can be such that active component is dispersed on carrier surface, obtain higher specific surface area, improve unit mass activity
The catalytic efficiency of component.Therefore, SCR low-temperature denitration catalysts are usually supported on specific carrier, and common carrier has
Titanium dioxide, aluminum oxide, silica gel, zirconium oxide, cerium oxide, activated carbon and some natural products such as float stone, diatomite etc..These are normal
Carrier generally has larger specific surface area and preferable heat endurance, so as to promote the progress of catalytic reaction and prevent
The only sintering of catalyst.In addition, some carriers also have some special performances：CeO2There is storage oxygen work(well during as carrier
Can, so as to promote catalytic reaction；Molecular sieve has ion-exchange performance, the duct of homogeneous molecular size, surface acidity,
And have good heat endurance and hydrothermal stability, it can be made into the catalyst for having high activity, high selectivity to many reactions.
At present, the carrying method of manganese base SCR low-temperature denitration catalysts mainly includes infusion process, cladding process, hydrothermal synthesis method
Deng.Infusion process because it has the advantages that operating procedure simple, short preparation period and energy-saving safe, be take so far it is more
A kind of mode of loading.But load of catalyst is uneven in the sample being prepared due to it, firmness is poor, it is difficult in ring
Found application in the complicated actual industrial production in border, therefore this kind of method is currently limited to laboratory and prepares use.
The content of the invention
It is an object of the invention to provide a kind of glass fabric Supported Manganese base low temperature SCR denitration catalyst and its preparation side
Method, this method is simple, easy to operate, and can solving manganese-based low-temperature SCR denitration, existing load is uneven, firm in the load
The problems such as poor is spent, is adapted to popularization and application.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of preparation method of glass fabric Supported Manganese base low temperature SCR denitration catalyst, comprises the following steps：
1) glass fabric is cut into by certain size and shape according to practical use, is put into after being soaked in suds and is washed
Wash, dry；It is subsequently placed in hydrochloric acid solution and carries out corrosion treatment, obtains pretreated glass fabric, it is quiet after drying and weighing
Purchase use；
2) load of low-temperature denitration manganese series catalyzer is stirred with low temperature glue and manganese-based low-temperature SCR denitration
It is even, stand for standby use；
3) pretreated glass fabric obtained by step 1) is laid on stainless steel workbench, will be walked using flush coater
It is rapid 2) in the low temperature glue that is well mixed and manganese-based low-temperature SCR denitration be uniformly coated to pretreated glass obtained by step 1)
In glass fiber cloth, it is placed in drying in baking oven；
4) step 3) resulting materials are placed in Muffle furnace and are heat-treated, cool down Supported Manganese base low temperature SCR denitration is urged
The glass fabric of agent；
5) glass fabric of Supported Manganese base low temperature SCR denitration catalyst obtained by step 4) is subjected to infrared radiation processing,
Produce described glass fabric Supported Manganese base low temperature SCR denitration catalyst.
In such scheme, soak time is 20~60min in suds described in step 1).
In such scheme, concentration of hydrochloric acid solution described in step 1) is 1~3mol/L, the corrosion treatment time is 20~
60min。
In such scheme, volume and the manganese base SCR of the load low temperature glue of low-temperature denitration manganese series catalyzer described in step 2)
The mass ratio of low-temperature denitration catalyst is (2~10):1.
In such scheme, coating thickness described in step 3) is 0.2~1.2mm.
In such scheme, heat treatment step is described in step 4)：It is heated to 200~400 DEG C of 2~6h of insulation.
In such scheme, the infrared band chosen in the processing of infrared radiation described in step 5) is middle infrared band (2.5
~25 μm), 10~30min of processing time.
In such scheme, the low-temperature denitration manganese series catalyzer load is with the preparation method of low temperature glue：1) add successively
Absolute ethyl alcohol, water, isopropanol, tetraethyl orthosilicate, catechol and formalin, are stirred continuously and ultrasonic disperse, are obtained
Uniform mixed liquor I；2) strong acid is slowly added into gained mixed liquor I, regulation pH value obtains mixed liquor I I, entered simultaneously to 2~4
Row stirring and ultrasonic disperse；3) mixed liquor I I is heated to 70~90 DEG C, and carries out constant temperature 2~8h of stirring reaction, it is sticky to obtaining
Transparent colloid, it is described low-temperature denitration manganese series catalyzer load low temperature glue.
In such scheme, the absolute ethyl alcohol, water, the volume ratio of tetraethyl orthosilicate and isopropanol are (3~8):1:(2~
4):(0.05~0.1)；The volume ratio of catechol and formalin is (1~1.2):1；Tetraethyl orthosilicate is water-soluble with formaldehyde
The volume ratio of liquid is (20~60):1；Strong acid is hydrochloric acid or nitric acid, and concentration is 1~3mol/L.
In such scheme, manganese-based low-temperature SCR denitration described in step 2) is MnOx(non-loading type), MnOx/TiO2
(support type) or Cu-MnOx/TiO2(support type) type low temperature SCR denitration catalyst, wherein MnOxExistence form be MnO2、
Mn2O3、Mn3O4In one or more.
The glass fabric Supported Manganese base low temperature SCR denitration catalyst prepared according to such scheme, it is in temperature range
80-180 DEG C, air speed be 20000~30000h-1Under conditions of, its denitration efficiency is up to 98%.
The beneficial effects of the present invention are：
1) glass fabric has that physical and chemical performance stabilization, good insulating, heat resistance are strong, corrosion resistance is good and machinery is strong
The features such as high is spent, the service life of catalyst can be extended using glass fabric Supported Manganese base low temperature SCR denitration catalyst, carried
The mechanical strength of high catalyst, and effectively reduce production cost.Meanwhile glass fabric is making the same of smoke filtration structure
When, play the effect of denitration.
2) the low-temperature denitration manganese series catalyzer load low temperature glue that the present invention is prepared by using hydrolysis method will
Manganese-based low-temperature SCR denitration is carried on glass fabric surface, and catalyst is in glass fabric in the material being prepared
Upper Load Balanced, firmness is preferable, and has good denitration performance.
3) by carrying out infrared processing to the catalysis material being prepared, catalyst and glass fabric can not only be improved
Between firmness, moreover it is possible to improve the activity and its denitration efficiency of catalyst sample.
Embodiment
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention is not
It is limited only to the following examples.
Following examples unless specific instructions, the commercially available chemical reagent of reagent or industrial products of use.
In following examples, the low-temperature denitration manganese series catalyzer load is with the preparation method of low temperature glue：1) successively will
30ml absolute ethyl alcohols, 10ml deionized waters, 0.5ml isopropanols, 20ml tetraethyl orthosilicates, catechol and formaldehyde (wherein adjacent benzene
The volume ratio of diphenol and formalin is 1:1, the two cumulative volume is 1ml) add in three-necked flask, it is stirred continuously and is surpassed
Sound disperses, and continues 30min, obtains uniform mixed liquor I；2) hydrochloric acid solution is slowly added into gained mixed liquor I, and (concentration is
1mol/L), it is 2 to adjust pH value, obtains mixed liquor I I, while is stirred and ultrasonic disperse, time 10min；3) by mixed liquor
II is heated to 70 DEG C with 3 DEG C/min speed, and carries out constant temperature stirring reaction 8h, (has to sticky transparent colloid is obtained in beaker
Wall built-up phenomenon), it is described low-temperature denitration manganese series catalyzer load low temperature glue.
The manganese-based low-temperature SCR denitration used in following examples for non-loading type MnOxLow temperature SCR denitration is urged
Agent, its preparation method comprise the following steps：1) by potassium permanganate and manganese acetate with 1:2 mol ratio is dissolved separately in distillation
Water；2) gained acetic acid manganese solution is slowly added in liquor potassic permanganate and is sufficiently stirred, filtered and surpassed after reacting 10min
Sound washs, until filtrate is in neutrality；3) put the precipitate in baking oven after drying, be placed in Muffle furnace and be heated to 400 DEG C of roastings
3h, the MnO of non-loading type is produced after being fully groundx(its main component is MnO to low temperature SCR denitration catalyst2, also have a small amount of
Mn2O3And Mn3O4)。
Embodiment 1
A kind of preparation method of glass fabric Supported Manganese base low temperature SCR denitration catalyst, comprises the following steps：
1) glass fabric is cut into by certain size and shape according to practical use, be put into suds soak after washing,
Dry, be subsequently placed in 1mol/L hydrochloric acid and corrode 20min, obtain pretreated glass fabric, after drying and weighing, stand
It is standby；
2) low-temperature denitration manganese series catalyzer load low temperature glue and manganese-based low-temperature SCR denitration are pressed to the body of low temperature glue
The quality of product and manganese-based low-temperature SCR denitration is 2:1 ratio is added in container, and is stirred with stirring rod, is mixed
Uniformly, stand for standby use；
3) pretreated glass fabric obtained by step 1) is laid on stainless steel workbench, will be walked using flush coater
It is rapid 2) in be well mixed low temperature glue and manganese-based low-temperature SCR denitration be evenly applied to pretreated glass fabric
On, coating thickness 0.2mm, it is placed in drying in baking oven；
4) step 3) resulting materials being placed in Muffle furnace and be heat-treated, heat treatment temperature is 200 DEG C, time 2h,
The glass fabric of Supported Manganese base low temperature SCR denitration catalyst is obtained after cooling；
5) glass fabric of Supported Manganese base low temperature SCR denitration catalyst obtained by step 4) is subjected to infrared radiation processing,
The infrared band of selection is middle infrared band (2.5~25 μm), processing time 10min, produces described glass fabric
Supported Manganese base low temperature SCR denitration catalyst.
The present embodiment products therefrom is placed in fixed bed quartz tube reactor progress denitration performance test, simulated flue gas by
N2、O2、NO、NH3Composition, wherein NO is 720ppm, NH3For 800ppm, O2It is 3%, N for volume fraction2As Balance Air；Survey
Examination temperature range is 80-180 DEG C, air speed 30000h-1.Test result shows：It is gradual with the rise of test temperature, denitration efficiency
Lifting, its average denitration efficiency can reach 70%.Denitration rate is 53% wherein at 100 DEG C, 120 DEG C up to 72%, higher than 120
DEG C when more than 80%, highest at 180 DEG C, can reach 86%.
Embodiment 2
A kind of preparation method of glass fabric Supported Manganese base low temperature SCR denitration catalyst, comprises the following steps：
1) glass fabric is cut into by certain size and shape according to practical use, be put into suds soak after washing,
Dry, be subsequently placed in 2mol/L hydrochloric acid and corrode 30min, obtain pretreated glass fabric, after drying and weighing, stand
It is standby；
2) low-temperature denitration manganese series catalyzer load low temperature glue and manganese-based low-temperature SCR denitration are pressed to the body of low temperature glue
The quality of product and manganese-based low-temperature SCR denitration is 4:1 ratio is added in container, and is stirred with stirring rod, is mixed
Uniformly, stand for standby use；
3) pretreated glass fabric obtained by step 1) is laid on stainless steel workbench, will be walked using flush coater
It is rapid 2) in be well mixed low temperature glue and manganese-based low-temperature SCR denitration be evenly applied to pretreated glass fabric
On, coating thickness 0.4mm, it is placed in drying in baking oven；
4) step 3) resulting materials being placed in Muffle furnace and be heat-treated, heat treatment temperature is 300 DEG C, time 3h,
The glass fabric of Supported Manganese base low temperature SCR denitration catalyst is obtained after cooling；
5) glass fabric of Supported Manganese base low temperature SCR denitration catalyst obtained by step 4) is subjected to infrared radiation processing,
The infrared band of selection is middle infrared band (2.5~25 μm), processing time 20min, produces described glass fabric
Supported Manganese base low temperature SCR denitration catalyst.
The present embodiment products therefrom is placed in fixed bed quartz tube reactor progress denitration performance test, simulated flue gas by
N2、O2、NO、NH3Composition, wherein NO is 720ppm, NH3For 800ppm, O2It is 3%, N for volume fraction2As Balance Air；Test
Temperature range is 80-180 DEG C, air speed 25000h-1.Test result shows：With the rise of test temperature, denitration efficiency gradually carries
Rise, its average denitration efficiency can reach 90%.Denitration rate is 75% wherein at 100 DEG C, during higher than 100 DEG C 90% with
On, and the highest at 180 DEG C, it can reach 98%.
Embodiment 3
A kind of preparation method of glass fabric Supported Manganese base low temperature SCR denitration catalyst, comprises the following steps：
1) glass fabric is cut into by certain size and shape according to practical use, be put into suds soak after washing,
Dry, be subsequently placed in 3mol/L hydrochloric acid and corrode 40min, obtain pretreated glass fabric, after drying and weighing, stand
It is standby；
2) low-temperature denitration manganese series catalyzer load low temperature glue and manganese-based low-temperature SCR denitration are pressed to the body of low temperature glue
The quality of product and manganese-based low-temperature SCR denitration is 8:1 ratio is added in container, and is stirred with stirring rod, is mixed
Uniformly, stand for standby use；
3) pretreated glass fabric obtained by step 1) is laid on stainless steel workbench, will be walked using flush coater
It is rapid 2) in be well mixed low temperature glue and manganese-based low-temperature SCR denitration be evenly applied to pretreated glass fabric
On, coating thickness 1.0mm, it is placed in drying in baking oven；
4) step 3) resulting materials being placed in Muffle furnace and be heat-treated, heat treatment temperature is 400 DEG C, time 4h,
The glass fabric of Supported Manganese base low temperature SCR denitration catalyst is obtained after cooling；
5) glass fabric of Supported Manganese base low temperature SCR denitration catalyst obtained by step 4) is subjected to infrared radiation processing,
The infrared band of selection is middle infrared band (2.5~25 μm), processing time 30min, produces described glass fabric
Supported Manganese base low temperature SCR denitration catalyst.
The present embodiment products therefrom is placed in fixed bed quartz tube reactor progress denitration performance test, simulated flue gas by
N2、O2、NO、NH3Composition, wherein NO is 720ppm, NH3For 800ppm, O2It is 3%, N for volume fraction2As Balance Air；Test
Temperature range is 80-180 DEG C, air speed 20000h-1.Test result shows：With the rise of test temperature, denitration efficiency gradually carries
Rise, its average denitration efficiency can reach 80%.Denitration rate is 69% wherein at 100 DEG C, and 120 DEG C are 76%, are reached at 180 DEG C
Highest, it is 88%.
It the foregoing is only the preferred embodiment of the present invention, it is noted that come for one of ordinary skill in the art
Say, without departing from the concept of the premise of the invention, make some modifications and variations, these belong to the protection model of the present invention
Enclose.
Claims (9)
1. a kind of preparation method of glass fabric Supported Manganese base low temperature SCR denitration catalyst, it is characterised in that including following step
Suddenly：
1) glass fabric is put into after suds immersion and washs, dries, be subsequently placed in hydrochloric acid solution and carry out corrosion treatment, obtain
Pretreated glass fabric, after drying and weighing, stand for standby use；
2) load of low-temperature denitration manganese series catalyzer is uniformly mixed with low temperature glue and manganese-based low-temperature SCR denitration, it is quiet
Purchase use；
3) low temperature glue and manganese-based low-temperature SCR denitration being well mixed step 2) are uniformly coated to pre- place obtained by step 1)
On glass fabric after reason, it is placed in baking oven and dries；
4) step 3) resulting materials are placed in Muffle furnace and be heat-treated, cool down to obtain Supported Manganese base low temperature SCR denitration catalyst
Glass fabric；
5) glass fabric of Supported Manganese base low temperature SCR denitration catalyst obtained by step 4) is subjected to infrared radiation processing, produced
Described glass fabric Supported Manganese base low temperature SCR denitration catalyst；
The low-temperature denitration manganese series catalyzer load is with the preparation method of low temperature glue：1) absolute ethyl alcohol, water, isopropyl are added successively
Alcohol, tetraethyl orthosilicate, catechol and formalin, are stirred continuously and ultrasonic disperse, obtain uniform mixed liquor I；2)
Strong acid is slowly added into gained mixed liquor I, regulation p H values to 2~4, obtains mixed liquor I I, while is stirred and ultrasound point
Dissipate；3) mixed liquor I I is heated to 70~90 DEG C, and carries out constant temperature 2~8h of stirring reaction, sticky transparent colloid is made, be
Described low-temperature denitration manganese series catalyzer load low temperature glue.
2. preparation method according to claim 1, it is characterised in that concentration of hydrochloric acid solution described in step 1) be 1~
3mol/L, corrosion treatment time are 20~60min.
3. preparation method according to claim 1, it is characterised in that low-temperature denitration manganese series catalyzer described in step 2) is born
The volume of load low temperature glue and the mass ratio of manganese base SCR low-temperature denitration catalysts are (2~10):1.
4. preparation method according to claim 1, it is characterised in that coating thickness described in step 3) be 0.2~
1.2mm。
5. preparation method according to claim 1, it is characterised in that heat treatment step is described in step 4)：It is heated to
200~400 DEG C of 2~6h of insulation.
6. preparation method according to claim 1, it is characterised in that chosen in the processing of infrared radiation described in step 5)
Infrared band is middle infrared band, 10~30min of processing time.
7. preparation method according to claim 1, it is characterised in that the absolute ethyl alcohol, water, tetraethyl orthosilicate and isopropyl
The volume ratio of alcohol is (3~8):1:(2~4):(0.05~0.1)；The volume ratio of catechol and formalin for (1~
1.2):1；The volume ratio of tetraethyl orthosilicate and formalin is (20~60):1；Strong acid is hydrochloric acid or nitric acid, concentration is 1~
3mol/L。
8. preparation method according to claim 1, it is characterised in that manganese-based low-temperature SCR denitration described in step 2) is catalyzed
Agent is MnOx、MnOx/TiO2Or Cu-MnOx/TiO2Low temperature SCR denitration catalyst, wherein MnOxExistence form be MnO2、
Mn2O3、Mn3O4In one or more.
9. urged according to glass fabric Supported Manganese base low temperature SCR denitration made from any one of claim 1~8 preparation method
Agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510905904.3A CN105457627B (en) | 2015-12-09 | 2015-12-09 | A kind of glass fabric Supported Manganese base low temperature SCR denitration catalyst and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510905904.3A CN105457627B (en) | 2015-12-09 | 2015-12-09 | A kind of glass fabric Supported Manganese base low temperature SCR denitration catalyst and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105457627A CN105457627A (en) | 2016-04-06 |
| CN105457627B true CN105457627B (en) | 2018-01-12 |
Family
ID=55596042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510905904.3A Active CN105457627B (en) | 2015-12-09 | 2015-12-09 | A kind of glass fabric Supported Manganese base low temperature SCR denitration catalyst and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105457627B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111659472A (en) * | 2020-06-24 | 2020-09-15 | 山西焦煤集团有限责任公司 | Mn2O3-SMS low-temperature denitration catalyst and preparation method thereof |
| CN113908628B (en) * | 2021-09-29 | 2023-04-07 | 华东师范大学重庆研究院 | Cobalt-based oxide superfine glass fiber gas phase purification filter screen and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0934770A1 (en) * | 1998-02-03 | 1999-08-11 | Nichias Corporation | Catalyst and process for the production thereof |
| CN102151564A (en) * | 2011-01-30 | 2011-08-17 | 广州市威格林环保科技有限公司 | Preparation method and slurry of denitration integral type catalyst |
| CN103464145A (en) * | 2013-09-11 | 2013-12-25 | 东华大学 | Preparation method of catalyst for simultaneously removing NO and fine particles in coal-fired flue gas |
| CN104448692A (en) * | 2014-11-18 | 2015-03-25 | 北京科技大学 | Preparation method of insulation board doped with modified nanopore SiO2 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4824516B2 (en) * | 2006-09-28 | 2011-11-30 | バブコック日立株式会社 | Method for producing catalyst for removing nitrogen oxides in exhaust gas |
-
2015
- 2015-12-09 CN CN201510905904.3A patent/CN105457627B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0934770A1 (en) * | 1998-02-03 | 1999-08-11 | Nichias Corporation | Catalyst and process for the production thereof |
| CN102151564A (en) * | 2011-01-30 | 2011-08-17 | 广州市威格林环保科技有限公司 | Preparation method and slurry of denitration integral type catalyst |
| CN103464145A (en) * | 2013-09-11 | 2013-12-25 | 东华大学 | Preparation method of catalyst for simultaneously removing NO and fine particles in coal-fired flue gas |
| CN104448692A (en) * | 2014-11-18 | 2015-03-25 | 北京科技大学 | Preparation method of insulation board doped with modified nanopore SiO2 |
Non-Patent Citations (1)
| Title |
|---|
| "低温催化还原NO的Ce-Mn氧化物催化剂载体的预处理实验研究";姚跃辉等;《2014年中国环境科学学会学术年会》;20140822;第6636-6640页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105457627A (en) | 2016-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103041818B (en) | The preparation method of catalytic wet oxidation catalyst and method for processing organic wastewater | |
| CN101402043A (en) | Visible light photocatalysis air purification material and air purification method | |
| CN101862651B (en) | V-Sb-Nb/Ti catalyst for selective catalytic reduction of nitric oxide and preparation method | |
| CN101480611A (en) | Vanadium-doped titanium-base flue gas denitration catalyst material and preparation method thereof | |
| CN105217568A (en) | A kind of loading type Ag-Pd/C 3n 4the method of nanocatalyst catalysis formate dehydrogenase | |
| CN109174094A (en) | A kind of preparation method and application of Rutile Type solid-solution material | |
| CN102225335A (en) | Denitration catalyst for flue gas and preparation method thereof | |
| CN105457627B (en) | A kind of glass fabric Supported Manganese base low temperature SCR denitration catalyst and preparation method thereof | |
| CN103100378A (en) | Preparation method of activated carbon fiber loaded titanium dioxide photocatalyst | |
| CN104289255A (en) | Solid borne ionic liquid low-temperature denitration catalyst and preparation method thereof | |
| CN101628202B (en) | Nanoparticle surface modified active semi-coke compound desulfurization denitrification agent and preparation method thereof | |
| CN106179350B (en) | The anti-sintering cobaltosic oxide base catalyst of one kind and its preparation and application | |
| CN105582962B (en) | A kind of MnOx/TiO2The regeneration method of based low-temperature denitration catalyst | |
| CN108970611B (en) | Natural gas organic sulfur hydrolysis catalyst and preparation method thereof | |
| CN107321353A (en) | A kind of preparation method of middle low-temperature selective catalytic reduction denitration catalyst | |
| CN106824174A (en) | A kind of coccoid catalyst of high-efficient purification nitrogen oxides and preparation method thereof | |
| CN105435819B (en) | A kind of cordierite loads MnOxF adulterates TiO2The method of active component and the MnO of preparationxF adulterates TiO2Cordierite composite catalyst | |
| CN103127957A (en) | Mesoporous PW/MoO3-TiO2-SiO2 catalyst and preparation method and application thereof | |
| CN108993461A (en) | The loading nano-titania tubular reactor of efficient degradation formaldehyde and its preparation | |
| CN107837800A (en) | A kind of Titanium Dioxide ozonisation catalyst and preparation, denitration application | |
| CN101992110B (en) | Method for preparing TiO2/ACF photocatalysis material | |
| CN111672536A (en) | Noble metal catalyst for formaldehyde purification and preparation method thereof | |
| CN104043449A (en) | Novel low-temperature SCR (selective catalytic reduction) catalyst based on cubic-phase zirconia carrier and preparation method of novel low-temperature SCR catalyst | |
| CN105646203B (en) | A kind of green gaultherolin preparation technology | |
| CN104941619A (en) | Catalyst for preparing methyl nitrite by reducing dilute nitric acid through methanol and preparation thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |