CN104611780A - RP-CHOP denitration catalyst fiber and catalyst prepared by same - Google Patents
RP-CHOP denitration catalyst fiber and catalyst prepared by same Download PDFInfo
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- CN104611780A CN104611780A CN201510043079.0A CN201510043079A CN104611780A CN 104611780 A CN104611780 A CN 104611780A CN 201510043079 A CN201510043079 A CN 201510043079A CN 104611780 A CN104611780 A CN 104611780A
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Abstract
The invention discloses an RP-CHOP denitration catalyst fiber. The fiber is prepared by the following steps: adding 1-2 parts of a nucleating agent into 100 parts of polypropylene, and preparing cellosilk by a melting spinning process; adding 20-40 parts of a surface treating agent on the surface of the cellosilk at the temperature of 90 DEG C in a mixing manner for treatment, and then performing shaping to obtain the RP-CHOP denitration catalyst fiber. A denitration catalyst is prepared from the following steps: mixing 5-9 parts of the prepared RP-CHOP denitration catalyst fiber with 100 parts of SCR denitration catalyst raw materials, stirring, extruding, drying and burning to obtain the denitration catalyst. Hundreds of millions of air guide holes are formed in the SCR denitration catalyst when the RP-CHOP denitration catalyst fiber disclosed by the invention is burnt at 400 DEG C in the production process, so that the SCR denitration catalyst does not deform and does not generate a crack; the specific surface area of denitration of the SCR denitration catalyst is increased; the poisoning phenomenon of the denitration catalyst is delayed; the service life of the SCR denitration catalyst is relatively long; the ultra-thin SCR denitration catalyst can be fabricated; and the cost is reduced by 40%.
Description
Technical field
The present invention relates to the SCR denitration of a kind of RP-CHOP denitrating catalyst fiber and preparation thereof.
Background technology
Along with the discharge capacity of the development Dan Yangization Wu ﹙ N0x ﹚ of China's power industry grows with each passing day, Thermal generation unit all requires to install SCR cigarette gas denitrating catalyst ﹙ N0x ﹚ control treatment technology, SCR denitrating flue gas is a kind of comparatively ripe commercial technology, SCR denitration reduction reaction can only reach 75%, also often occurs that SCR denitration deactivation mechanism and intoxicating phenomenon and service life are not long.Its main cause is N
2and H
2o reaction specific area is little. at high temperature SCR catalyst for denitrating flue gas thermal sintering deactivation mechanism, and the thermal sintering process of catalyst is irreversible sintering, cause catalyst activity to reduce not recover by the mode of catalyst regeneration, this is one of major reason of catalysqt deactivation.Generally just start to occur higher than sintering when 400 degree in flue-gas temperature, 450 degree of catalyst lifes will significantly reduce in the short period of time, and current commercial SCR catalyst for denitrating flue gas mostly is V
2o
5-WO
3-TiO
2catalyst, wherein V
2o
5for active component, WO
3for stable elements, TiO
2for carrier mass, for the TiO of SCR catalyst for denitrating flue gas
2crystal formation be anatase titanium dioxide, can rutile-type be changed into after being sintered, thus cause crystal particle diameter to increase exponentially and SCR denitration inactivation and coal ash sintering.
Summary of the invention
In order to solve the problem, the present invention proposes the denitrating catalyst of RP-CHOP denitrating catalyst fiber and preparation thereof, RP-CHOP denitrating catalyst fiber is added in SCR denitration raw material, hundreds of millions gas ports are produced in SCR denitration in process of production during 400 DEG C of calcinings, make SCR denitration not modification, do not crack and add the denitration specific area of SCR denitration and postpone denitrating catalyst intoxicating phenomenon and make its SCR denitration longer service life, and the SCR denitration that can make super-thin makes cost reduce by 40%.
The present invention realizes particular by following technical scheme:
A kind of RP-CHOP denitrating catalyst fiber, it is characterized in that, this fiber adds the nucleator of 1-2 weight portion by the polypropylene of 100 weight portions, crosses after the logical surface conditioning agent to filament surface mixing interpolation 20-40 weight portion processes be processed into RP-CHOP denitrating catalyst fiber by integer by smelting furnace spinning technique after making filament at 90 DEG C.
Further, the length of obtained RP-CHOP denitrating catalyst fiber is 0.8-1.2 mm.
Further, the tensile strength of obtained RP-CHOP denitrating catalyst fiber is 400-600MPa, and elongation at break 10-100%, surface treatment agent content is 20-40%, and elastic modelling quantity is 2000-3500MPa, and equivalent diameter is 10-40 μm.
Further, the composition of described surface conditioning agent, is by weight: ethylene glycol hard acid ester 16%. diethanol mono laurate 28%, PEG400 laurate 20%, dispersant A M-C8%, softener EP6%, bleeding agent R8%, distilled water 14%.
Further, described polyacrylic molecular weight is 1800-2000 ten thousand.
Further, described nucleator is high molecular polymer.
A denitrating catalyst prepared by RP-CHOP denitrating catalyst fiber, by 5-9 weight portion RP-CHOP denitrating catalyst fiber and the mixing of 100 weight portion SCR denitration raw materials of above-mentioned system, obtains through stirring, extruding, drying, calcining.
The beneficial effect that the present invention produces is: this RP-CHOP denitrating catalyst fiber is passed through by macromolecule polypropylene and adds nucleator, micromodification becomes original properties of materials, by the spinning of smelting furnace spinning process, complete by adding outside list processing agent aft-loaded airfoil after processbearing astrocyte, after the product completed adds SCR denitration (4NH3+4NO+O2 → 4N2+6H2O) to, make in production SCR denitration process, because this denitrating catalyst fiber every cubic metre is containing 23.08 hundred million to 34.62 hundred million fibre single threads, this fiber dispersion is extremely strong and have good bond stress with SCR denitration base-material, after fully stirring with SCR denitration base-material, these monofilament are formed evenly in the base, fine and close random distribution support system, hundreds of millions gas ports are produced in production SCR denitration process, make SCR denitration not modification, do not crack and add the denitration specific area of SCR denitration and postpone denitrating catalyst intoxicating phenomenon and make its SCR denitration longer service life, and the SCR denitration that can make super-thin makes cost reduce by 40%.
Surface conditioning agent is when being processed into RP-CHOP denitrating catalyst fiber by integer for 90 DEG C simultaneously, because fiber is in the limiting condition before thawing, but do not melt, surface conditioning agent can well be attached to fiber surface and with fiber surface partly split mouth be combined formed one, play antistatic when production SCR denitration, smoothly, anti-SCR denitration base-material comes off, and can be that carbon dioxide makes to produce diversion stomatal in SCR denitration and prevents SCR denitration from bursting along fast catalysis fibre when production SCR denitration 400 DEG C is calcined, the most important thing is that the denitration specific area increasing catalyst makes denitration effect better.
Detailed description of the invention
Be clearly and completely described the technical scheme in the embodiment of the present invention below in conjunction with the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
SCR denitration adopts Jiangsu Longyuan Catalyst Co., Ltd. to produce, wherein TiO
270 ~ 90 parts, WO
33 ~ 10 parts, V
2o
52 ~ 4 parts, metal oxide 0 ~ 10 part, 3 ~ 15 parts, glass fibre, obtained SCR denitration after mixing, extruding drying and calcining.
Embodiment 2:
Chongqing Yuanda Catalyst Manufacturing Co., Ltd. adopts the SCR denitration of embodiment 1 same recipe, and in formula, add the RP-CHOP denitrating catalyst fiber of the 5-9% of SCR denitration weight, RP-CHOP denitrating catalyst fiber adopts the proportioning of the scheme of the application, parameter to implement to manufacture, through same steps mixing, extrude drying and calcining after obtained SCR denitration.
The SCR denitration that above-mentioned two kinds of embodiments are obtained is tested, reaction condition: dustiness 45g/Nm
3, air speed 4000h
-1, NO content 400ppm, NH
3content 324ppm, SO
2content 500ppm, H
2o content 10%, N
2for Balance Air, it is as follows that test result gets its Average value compare:
| Test event | Embodiment 1 | Embodiment 2 |
| 380 DEG C of denitration efficiencies (%) | 79 | 97 |
| Minimum wall thickness (MINI W.) (mm) | 1.1 | 0.6 |
| The most long life (h) | 24000 | 26000 |
| Row yielding (%) | 78 | 97 |
As seen from the above table: the catalyst denitration effect lifting about 20% that the present invention is obtained after adding RP-CHOP denitrating catalyst fiber, main cause is RP-CHOP denitrating catalyst fiber Anti-cracking, indeformable in SCR denitration agent process, every cubic metre is produced containing 23.08 hundred million to 34.62 hundred million fibre single threads when hot conditions, form gas port, increase SCR denitration specific area about 20%. and then increase denitration effect and postpone denitrating catalyst intoxicating phenomenon.
This fiber dispersion is extremely strong and have good bond stress with SCR denitration base-material, after fully stirring with SCR denitration base-material, these monofilament form even, fine and close random distribution support system in the base, improve product row yielding, reduce catalyst wall thickness, increase SCR denitration effect.The length of RP-CHOP denitrating catalyst fiber is 0.8-1.2 mm, equivalent diameter is 10-40 μm, there are good parcel, fineness for SCR denitration matrix, good pod apertures can be played and the specific area increasing catalyst makes it increase SCR denitration catalytic effect in SCR denitration.And surface conditioning agent plays antistatic, level and smooth, anti-SCR denitration base-material and comes off and can be that carbon dioxide makes to produce diversion stomatal in SCR denitration and prevents SCR denitration from burst along fast catalysis fibre when production SCR denitration 400 DEG C is calcined, increase SCR denitration specific area when production SCR denitration.
The tensile strength of RP-CHOP denitrating catalyst fiber is 400-600MPa, elongation at break 10-100%, oil content is 20-40%, elastic modelling quantity is 2000-3500Mpa is the fibrous key technology data of RP-CHOP denitrating catalyst, vital effect is played: production SCR denitration uses high pressure extrusion apparatus to be shaped in production SCR denitration, crushing strength is 300MPa, extrusion speed is 1 meter per minute, RP-CHOP denitrating catalyst fiber adds in SCR denitration base-material, and be well bundled together with base-material and require good flatness, withstand high impact at a high speed, in production SCR denitration, improve that row yielding is indeformable not to ftracture, the technical characteristic of this RP-CHOP denitrating catalyst fiber can well meet.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a RP-CHOP denitrating catalyst fiber, it is characterized in that, this fiber adds the nucleator of 1-2 weight portion by the polypropylene of 100 weight portions, by integer is processed into RP-CHOP denitrating catalyst fiber after being processed by smelting furnace spinning technique after making filament at 90 DEG C by surface conditioning agent filament surface mixing being added to 20-40 weight portion.
2. RP-CHOP denitrating catalyst fiber as claimed in claim 1, is characterized in that, the length of obtained RP-CHOP denitrating catalyst fiber is 0.8-1.2 mm.
3. RP-CHOP denitrating catalyst fiber as claimed in claim 1 or 2, it is characterized in that, the tensile strength of obtained RP-CHOP denitrating catalyst fiber is 400-600MPa, elongation at break 10-100%, oil content is 20-40%, elastic modelling quantity is 2000-3500MPa, and equivalent diameter is 10-40 μm.
4. RP-CHOP denitrating catalyst fiber as claimed in claim 1, it is characterized in that, the composition of described surface conditioning agent, be by weight: ethylene glycol hard acid ester 16%. diethanol mono laurate 28%, PEG400 laurate 20%, dispersant A M-C8%, softener EP6%, bleeding agent R8%, distilled water 14%.
5. RP-CHOP denitrating catalyst fiber as claimed in claim 1, it is characterized in that, described polyacrylic molecular weight is 1800-2000 ten thousand.
6. RP-CHOP denitrating catalyst fiber as claimed in claim 1, it is characterized in that, described nucleator is high molecular polymer.
7. SCR denitration prepared by the RP-CHOP denitrating catalyst fiber as described in any one of claim 1-6, it is characterized in that, obtain RP-CHOP denitrating catalyst fiber and the mixing of 100 weight portion SCR denitration raw materials by 5-9 weight portion, obtain through stirring, extruding, drying, calcining.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622370A (en) * | 2016-12-20 | 2017-05-10 | 武汉科丝力纤维制造有限公司 | Low-temperature denitration catalyst fiber sodium ion removing assistant and preparation method thereof |
| CN107321348A (en) * | 2016-08-31 | 2017-11-07 | 湖南循安环境资源技术有限公司 | Can catalytic elimination organic gas pollutant catalysis fibre and preparation method thereof, catalysis filter bag and sack cleaner |
| CN111185173A (en) * | 2020-01-09 | 2020-05-22 | 山东大学 | Molded red mud catalyst and preparation method and application thereof |
| CN113509924A (en) * | 2021-05-22 | 2021-10-19 | 山东博霖环保科技发展有限公司 | Denitration catalyst and production process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877970A (en) * | 2014-03-24 | 2014-06-25 | 中安庆华河北节能环保工程技术有限公司 | Honeycombed waste gas denitrification catalyst |
| CN104226301A (en) * | 2014-09-16 | 2014-12-24 | 东营信拓汽车消声器有限公司 | Preparation method of rare-earth-based composite multi-component denitrification and dioxin removal catalyst |
| CN104226300A (en) * | 2014-08-08 | 2014-12-24 | 江苏宇达环保科技股份有限公司 | SCR (Selective Catalytic Reduction) catalyst and preparation method thereof |
| CN104258856A (en) * | 2014-09-16 | 2015-01-07 | 东营信拓汽车消声器有限公司 | Preparation method of porous honeycomb ceramic catalyst with high specific surface area |
-
2015
- 2015-01-28 CN CN201510043079.0A patent/CN104611780B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877970A (en) * | 2014-03-24 | 2014-06-25 | 中安庆华河北节能环保工程技术有限公司 | Honeycombed waste gas denitrification catalyst |
| CN104226300A (en) * | 2014-08-08 | 2014-12-24 | 江苏宇达环保科技股份有限公司 | SCR (Selective Catalytic Reduction) catalyst and preparation method thereof |
| CN104226301A (en) * | 2014-09-16 | 2014-12-24 | 东营信拓汽车消声器有限公司 | Preparation method of rare-earth-based composite multi-component denitrification and dioxin removal catalyst |
| CN104258856A (en) * | 2014-09-16 | 2015-01-07 | 东营信拓汽车消声器有限公司 | Preparation method of porous honeycomb ceramic catalyst with high specific surface area |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321348A (en) * | 2016-08-31 | 2017-11-07 | 湖南循安环境资源技术有限公司 | Can catalytic elimination organic gas pollutant catalysis fibre and preparation method thereof, catalysis filter bag and sack cleaner |
| CN107321348B (en) * | 2016-08-31 | 2021-04-27 | 湖南循安环境资源技术有限公司 | Catalytic fiber capable of catalytically removing organic gaseous pollutants, preparation method thereof, catalytic filter bag and bag-type dust collector |
| CN106622370A (en) * | 2016-12-20 | 2017-05-10 | 武汉科丝力纤维制造有限公司 | Low-temperature denitration catalyst fiber sodium ion removing assistant and preparation method thereof |
| CN106622370B (en) * | 2016-12-20 | 2021-04-27 | 武汉科丝力纤维制造有限公司 | Low-temperature denitration catalyst fiber sodium ion removal auxiliary agent and preparation method thereof |
| CN111185173A (en) * | 2020-01-09 | 2020-05-22 | 山东大学 | Molded red mud catalyst and preparation method and application thereof |
| CN113509924A (en) * | 2021-05-22 | 2021-10-19 | 山东博霖环保科技发展有限公司 | Denitration catalyst and production process thereof |
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