CN108014749A - A kind of method that modified active carbon fiber collaboration hollow ceramic ball removes denitrification - Google Patents
A kind of method that modified active carbon fiber collaboration hollow ceramic ball removes denitrification Download PDFInfo
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- CN108014749A CN108014749A CN201711323644.4A CN201711323644A CN108014749A CN 108014749 A CN108014749 A CN 108014749A CN 201711323644 A CN201711323644 A CN 201711323644A CN 108014749 A CN108014749 A CN 108014749A
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- carbon fiber
- active carbon
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- hollow ceramic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
- B01J20/28019—Spherical, ellipsoidal or cylindrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28069—Pore volume, e.g. total pore volume, mesopore volume, micropore volume
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
Abstract
The invention discloses the method that a kind of modified active carbon fiber collaboration hollow ceramic ball removes denitrification, it is characterised in that first dries activated carbon fibre in an oven, then is impregnated with pre- preserved material potassium sulfate, the charing that then heats up obtains modified active carbon fiber；By SiO 2-ceramic powder, sintering aid boric acid mixing and ball milling in the ball mill, take out drying, obtain mixed powder, polyvinyl alcohol powder adhesive solution is sprayed in urea ball surface, then mixed powder is coated again, hollow ball presoma is made, high temperature sintering after drying, is made silicon dioxide hollow Ceramic Balls；Using modified active carbon fiber, silicon dioxide hollow Ceramic Balls as filler, it is mixed into compounding with polyethylene glycol and expanded graphite, is filled in reactor on filter membrane, available for the Adsorption processing to nitrogen oxides waste gas.
Description
Technical field
The present invention relates to nitrogen oxides waste gas disposal field, and in particular to a kind of modified active carbon fiber cooperates with hollow pottery
The method that porcelain ball removes denitrification.
Background technology
Air environmental pollution caused by the discharge of nitrous oxides exhaust gas has become global great environmental and asks
Topic, not only the production and living to the mankind bring serious harm, while destroy ecological environment, aggravation acid rain, light
The formation of chemical fumes etc..With increasingly sharpening for nitrogen oxides harm, the people of other countries are striving to find
Control and administering method with research nitrogen oxides.Expanded graphite is a kind of excellent porosity charcoal material sorbing material,
The features such as its specific surface area is big, adsorption effect is notable, carrying capacity of environment is small is widely used to remove in environmental contaminants in recent years and leads
Domain, removal effect is obvious in terms of the organic gas absorption such as waste water from dyestuff, formaldehyde.
The content of the invention
The invention mainly solves the technical problem of providing a kind of modified active carbon fiber collaboration hollow ceramic ball to go to denitrogenate
The method of oxide, the filler prepared according to the technique are good to the Adsorption effect of nitrogen oxides waste gas.
The technical problems to be solved by the invention are realized using following technical solution：
A kind of method that modified active carbon fiber collaboration hollow ceramic ball removes denitrification, it is characterised in that by active carbon fibre
Dimension is first dried in an oven, then is impregnated with pre- preserved material potassium sulfate, and the charing that then heats up obtains modified active carbon fiber；By titanium dioxide
Silicon ceramic powder, sintering aid boric acid mixing and ball milling in the ball mill, take out drying, obtain mixed powder, are sprayed in urea ball surface
Polyvinyl alcohol powder adhesive solution, then coats mixed powder again, obtained hollow ball presoma, high temperature sintering after drying,
Silicon dioxide hollow Ceramic Balls are made；Using modified active carbon fiber, silicon dioxide hollow Ceramic Balls as filler, by itself and poly- second two
Alcohol and expanded graphite mixing compounding, are filled in reactor on filter membrane, available for the Adsorption to nitrogen oxides waste gas
Processing.
Wherein：
The modified operation of activated carbon fibre is as follows：Activated carbon fibre is placed in 95-105 DEG C of baking oven and dries 1-2h, input preimpregnation
Impregnation 3-4h in agent potassium sulfate solution, then under argon gas protection, is warming up to 680-720 DEG C of constant temperature charing 55-65min,
Modified active carbon fiber is made；
Preparing for silicon dioxide hollow Ceramic Balls is as follows：SiO 2-ceramic powder, boric acid are mixed in the ball mill
Ball milling 3-4h, takes out drying, obtains mixed powder；In urea ball surface sprinkling powder body adhesive solution, then cladding mixing
Powder, is made hollow ball presoma, and dry 25-30h, then sinters 2-3h at 1150-1250 DEG C, obtain at 105-115 DEG C
To silicon dioxide hollow Ceramic Balls；
Polyethylene glycol is Liquid Macrogol；
Sulfuric acid potassium concn is 0.04-0.06%, and argon gas flow velocity is 90-100mL/min, and heating rate is 3-4 DEG C/min；
Boric acid dosage is the 1-2% of SiO 2-ceramic powder, and polyvinyl alcohol is dissolved in hot water is made into the powder that mass concentration is 1-2%
Adhesive solution, urea spheres particle diameter are 500-600um.
The present invention reaction mechanism and have the beneficial effect that：
Using potassium sulfate as pre- preserved material, impregnation is carried out to activated carbon fibre, then high temperature carbonization obtains modified active carbon fiber, increases
BET specific surface area, total pore volume and Micropore volume, the modified adsorbance added to organic exhaust gas, absorption property are preferable；With
Urea is pore-forming templates, SiO 2-ceramic powder is external sheath material, polyvinyl alcohol is granulation bonding agent, boric acid is that sintering helps
Agent, is prepared for silicon dioxide hollow Ceramic Balls filler, and balling property is good, can more form hollow-core construction, hollow ceramic ball after sintering
It is middle to help to improve the sphericity of hollow ball there are certain glass phase, NO exhaust gas can be handled as filling adsorption；With poly-
Ethylene glycol is nonionic surfactant, and collaboration porosity, accumulate the significant effect that big expanded graphite removes denitrification than table,
Expanded graphite is to the multi-molecular absorption that is adsorbed as of nitrogen oxides, polyethylene glycol and NO2Similar complex reaction is carried out, forms esters
Polymer, is inflated graphite absorption, parcel, denitrification is removed in the form of macromolecular polymeric state.
Embodiment
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention easy to understand, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment
A kind of method that modified active carbon fiber collaboration hollow ceramic ball removes denitrification, it is characterised in that by activity
Carbon fibe is first dried in an oven, then is impregnated with pre- preserved material potassium sulfate, and the charing that then heats up obtains modified active carbon fiber；By two
Silicon oxide ceramics powder, sintering aid boric acid mixing and ball milling in the ball mill, take out drying, mixed powder are obtained, in urea ball surface
Polyvinyl alcohol powder adhesive solution is sprayed, then coats mixed powder again, hollow ball presoma is made, high temperature is burnt after drying
Knot, is made silicon dioxide hollow Ceramic Balls；Using modified active carbon fiber, silicon dioxide hollow Ceramic Balls as filler, by it with gathering
Ethylene glycol and expanded graphite mixing compounding, are filled in reactor on filter membrane, available for the absorption to nitrogen oxides waste gas
Removal is handled.
Wherein：
The modified operation of activated carbon fibre is as follows：Activated carbon fibre is placed in 95-105 DEG C of baking oven and dries 1h, puts into pre- preserved material
Impregnation 3h in potassium sulfate solution, then under argon gas protection, is warming up to 680-720 DEG C of constant temperature charing 60min, is made and is modified
Activated carbon fibre；
Preparing for silicon dioxide hollow Ceramic Balls is as follows：SiO 2-ceramic powder, boric acid are mixed in the ball mill
Ball milling 3h, takes out drying, obtains mixed powder；In urea ball surface sprinkling powder body adhesive solution, mixed powder is then coated
Body, is made hollow ball presoma, and dry 25h, then sinters 2h at 1150-1250 DEG C, obtain titanium dioxide at 105-115 DEG C
Silicon hollow ceramic ball；
Polyethylene glycol is Liquid Macrogol；
Sulfuric acid potassium concn is 0.04%, and argon gas flow velocity is 90mL/min, and heating rate is 3 DEG C/min；
Boric acid dosage is the 1% of SiO 2-ceramic powder, and polyvinyl alcohol is dissolved in hot water is made into the powder bonding that mass concentration is 2%
Agent solution, urea spheres particle diameter are 500um.
Claims (6)
1. a kind of method that modified active carbon fiber collaboration hollow ceramic ball removes denitrification, it is characterised in that：By activated carbon
Fiber is first dried in an oven, then is impregnated with pre- preserved material potassium sulfate, and the charing that then heats up obtains modified active carbon fiber；By dioxy
SiClx ceramic powder, sintering aid boric acid mixing and ball milling in the ball mill, take out drying, obtain mixed powder, are sprayed in urea ball surface
Polyvinyl alcohol powder adhesive solution is spilt, then coats mixed powder again, hollow ball presoma is made, high temperature is burnt after drying
Knot, is made silicon dioxide hollow Ceramic Balls；Using modified active carbon fiber, silicon dioxide hollow Ceramic Balls as filler, by it with gathering
Ethylene glycol and expanded graphite mixing compounding, are filled in reactor on filter membrane, available for the absorption to nitrogen oxides waste gas
Removal is handled.
2. the method that a kind of modified active carbon fiber collaboration hollow ceramic ball according to claim 1 removes denitrification,
It is characterized in that, the modified operation of activated carbon fibre is as follows：
Activated carbon fibre is placed in 95-105 DEG C of baking oven and dries 1-2h, puts into impregnation 3- in pre- preserved material potassium sulfate solution
4h, then under argon gas protection, is warming up to 680-720 DEG C of constant temperature charing 55-65min, modified active carbon fiber is made.
3. the method that a kind of modified active carbon fiber collaboration hollow ceramic ball according to claim 1 removes denitrification,
It is characterized in that, preparing for silicon dioxide hollow Ceramic Balls is as follows：
By SiO 2-ceramic powder, boric acid mixing and ball milling 3-4h in the ball mill, drying is taken out, obtains mixed powder；In urea spheres
Powder adhesive solution is sprayed on surface, then coats mixed powder, and hollow ball presoma is made, the dry 25- at 105-115 DEG C
30h, then sinters 2-3h at 1150-1250 DEG C, obtains silicon dioxide hollow Ceramic Balls.
4. the method that a kind of modified active carbon fiber collaboration hollow ceramic ball according to claim 1 removes denitrification,
It is characterized in that, polyethylene glycol is Liquid Macrogol.
5. the method that a kind of modified active carbon fiber collaboration hollow ceramic ball according to claim 2 removes denitrification,
It is characterized in that, sulfuric acid potassium concn is 0.04-0.06%, argon gas flow velocity is 90-100mL/min, and heating rate is 3-4 DEG C/min.
6. the method that a kind of modified active carbon fiber collaboration hollow ceramic ball according to claim 3 removes denitrification,
It is characterized in that, boric acid dosage is the 1-2% of SiO 2-ceramic powder, it is 1- that polyvinyl alcohol, which is dissolved in hot water to be made into mass concentration,
2% powder adhesive solution, urea spheres particle diameter are 500-600um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711323644.4A CN108014749A (en) | 2017-12-13 | 2017-12-13 | A kind of method that modified active carbon fiber collaboration hollow ceramic ball removes denitrification |
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| CN201711323644.4A CN108014749A (en) | 2017-12-13 | 2017-12-13 | A kind of method that modified active carbon fiber collaboration hollow ceramic ball removes denitrification |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910787A (en) * | 2020-08-08 | 2020-11-10 | 济南长兴建设集团工业科技有限公司 | Light inner wall capable of realizing heat preservation and sound insulation |
| CN112619607A (en) * | 2021-01-07 | 2021-04-09 | 深圳市奇信集团股份有限公司 | Formaldehyde adsorbent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0531843A1 (en) * | 1991-09-12 | 1993-03-17 | Bayer Ag | Shaped bodies containing expanded graphite, their fabrication and use |
| CN1795097A (en) * | 2002-08-23 | 2006-06-28 | 日本华尔卡工业株式会社 | Reinforcing material-carrying functional sheet |
| CN101230502A (en) * | 2007-12-13 | 2008-07-30 | 中国人民解放军总后勤部军需装备研究所 | Method for preparing anesthesia activated carbon fiber |
-
2017
- 2017-12-13 CN CN201711323644.4A patent/CN108014749A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0531843A1 (en) * | 1991-09-12 | 1993-03-17 | Bayer Ag | Shaped bodies containing expanded graphite, their fabrication and use |
| CN1795097A (en) * | 2002-08-23 | 2006-06-28 | 日本华尔卡工业株式会社 | Reinforcing material-carrying functional sheet |
| CN101230502A (en) * | 2007-12-13 | 2008-07-30 | 中国人民解放军总后勤部军需装备研究所 | Method for preparing anesthesia activated carbon fiber |
Non-Patent Citations (3)
| Title |
|---|
| 王剑波等: "PEG协同膨胀石墨去除氮氧化物的研究", 《环境科学与技术》 * |
| 董朋朋等: "成孔剂对模板法制备SiO2空心陶瓷球性能的影响", 《硅酸盐通报》 * |
| 迟广俊等: "改性活性炭纤维对含乙醇有机废气的吸附性能研究", 《环境科学与技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910787A (en) * | 2020-08-08 | 2020-11-10 | 济南长兴建设集团工业科技有限公司 | Light inner wall capable of realizing heat preservation and sound insulation |
| CN112619607A (en) * | 2021-01-07 | 2021-04-09 | 深圳市奇信集团股份有限公司 | Formaldehyde adsorbent |
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Application publication date: 20180511 |