CN1386576A - Process for preparing material to remove aldehyde odour - Google Patents
Process for preparing material to remove aldehyde odour Download PDFInfo
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- CN1386576A CN1386576A CN 02116543 CN02116543A CN1386576A CN 1386576 A CN1386576 A CN 1386576A CN 02116543 CN02116543 CN 02116543 CN 02116543 A CN02116543 A CN 02116543A CN 1386576 A CN1386576 A CN 1386576A
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Abstract
A material for removing aldehyde odour is prepared from activated carbon fibres through drying at 100-150 deg.C, impregnating in the mixture of palladium chloride solution and hydrogen bromide solution under 0.2-10 MPa for 0.5-24 hr, squeezing, drying in air, and drying at 100-150 deg.C. Its advantages are high speed and capacity, and no pollution.
Description
Technical field;
The invention belongs to a kind of preparation methods that removes VOC (VOC), relate in particular to a kind of preparation methods that removes aldehyde odour.
Background technology:
In recent years, formaldehyde pollutes a key factor that becomes indoor pollution.Formaldehyde is a kind of primary toxin, and formaldehyde can produce tangible spread effect to eye, nose, larynx, skin etc. in the air.Formaldehyde also is a kind of VOC (VOC-Volatile Organic Compound).Therefore, administer formaldehyde pollution and become a major part of administering indoor VOC pollution.In order fundamentally to solve the pollution that VOC caused such as formaldehyde, the method for absorption commonly used.Active carbon and NACF (ACF) are the adsorbents of using always.Wherein, NACF is the most noticeable carbon absorbent over nearly 20 years.ACF has particular structure and performance characteristic, has a wide range of applications in fields such as chemical industry, environmental protection, defence and military, electronics and the energy.ACF is a kind of superficiality solid, is again a kind of porous carbon material that is rich in micropore simultaneously, be particularly useful for the improvement to low concentration pollutant, so ACF causes people's attention just gradually as a kind of novel environment friendly material.But the adsorbing and removing poor-performing of conventional NACF PARA FORMALDEHYDE PRILLS(91,95) isopolarity organic compound, adsorption capacity is lower.The design of ACF being carried out surface and micro-structural is the advantageous methods that makes its functionalization.
Summary of the invention:
The objective of the invention is to develop a kind of pollution-free, the rate of adsorption is high and adsorption capacity is big removes the aldehyde odour preparation methods.
The object of the present invention is achieved like this: the solution impregnation that adds hydrogen bromide with certain density palladium bichloride is handled NACF, take out behind the certain hour, air-dry in air, dry under 100-150 ℃ of temperature then, the material that makes is under the catalytic action of slaine, and the performance of its full gear has improved.
Preparation method of the present invention comprises the steps:
NACF is dry down at 100-150 ℃, working concentration is that the mixed solution of the hydrogen bromide of the palladium bichloride of 0.01-10g/ml and 0.01-10g/ml is under the 0.2-10MPa condition impregnation process 0.5-24 hour at normal pressure or pressure then, take out extruding, air-dry, in 100-150 ℃ of oven dry, make the material that removes aldehyde odour.
Aforesaid NACF is polyacrylonitrile active carbon fiber, viscose-based active carbon fiber, asphalt based active carbon fiber.
The material that the present invention makes can be processed into variforms such as fiber, cloth, paper, felt.
The present invention has the following advantages:
(1) preparation is simple, easy to operate.
(2) product that makes is pollution-free in removing aldehyde process.
(3) full gear speed height, capacity are big, effective.
The specific embodiment:
Embodiment 1
Polyacrylonitrile active carbon fiber 100 ℃ down dry, then dipping 24 hours in the mixed solution of the hydrogen bromide of the palladium bichloride of 0.01g/ml and 0.01g/ml takes out extruding, and is air-dry, then in air atmosphere 100 ℃ dry down, make the deodorization material.Performance test: at room temperature handle aldehyde-containing gas with this material of 2g, formaldehyde entrance concentration 20ppm, the gas of nitrogen, air, formaldehyde and the water vapour of steam entry concentration 250ppm.Flow is 10ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 10min, formaldehyde 5 hours.
Embodiment 2
Viscose-based active carbon fiber 105 ℃ down dry, then added in the solution of hydrogen bromide of 0.1g/ml dipping 20 hours at the palladium bichloride of 0.1g/ml, take out extruding, air-dry, then in air atmosphere 105 ℃ dry down, make the deodorization material.Performance test: at room temperature handle aldehyde-containing gas with this material of 3g, formaldehyde entrance concentration 10ppm, the gas of nitrogen, air, formaldehyde and the water vapour of steam entry concentration 100ppm.Flow is 15ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 16min, formaldehyde 10 hours.
Embodiment 3
The asphalt based active carbon fiber 110 ℃ down dry, then added in the solution of hydrogen bromide of 0.5g/ml dipping 12 hours at the palladium bichloride of 0.2g/ml, take out extruding, air-dry, then in air atmosphere 110 ℃ dry down, make the deodorization material.Performance test: at room temperature handle aldehyde-containing gas with this material of 5g, formaldehyde entrance concentration 15ppm, the gas of nitrogen, air, formaldehyde and the water vapour of steam entry concentration 150ppm.Flow is 20ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 12min, formaldehyde 7 hours.
Embodiment 4
Polyacrylonitrile radical active carbon fiber 120 ℃ down dry, then be placed on one and can pressurize in the stainless steel device, the palladium bichloride with 5% adds the solution impregnation of 6% hydrogen bromide, pressurization 0.2Mpa takes out extruding after 10 hours, air-dry, dry under 130 ℃ in air atmosphere then, make the deodorization material.Performance test: handle aldehyde-containing gas, formaldehyde entrance concentration 1ppm, the gas of nitrogen, air, formaldehyde and the water vapour of steam entry concentration 25ppm down with this material normal temperature of 2g.Flow is 25ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 13min, formaldehyde 6 hours.
Embodiment 5
Viscose-based active carbon fiber 130 ℃ down dry, then be placed on one and can pressurize in the stainless steel device, the palladium bichloride with 6% adds the solution impregnation of 8% hydrogen bromide, pressurization 5Mpa takes out extruding after 3 hours, air-dry, dry under 120 ℃ in air atmosphere then, make the deodorization material.Performance test: handle aldehyde-containing gas, formaldehyde entrance concentration 20ppm, the gas of nitrogen, air, formaldehyde and the water vapour of steam entry concentration 250ppm down with this material normal temperature of 2g.Flow is 30ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 20min, formaldehyde 12 hours.
Embodiment 6
The asphalt based active carbon fiber 150 ℃ down dry, then be placed on one and can pressurize in the stainless steel device, the palladium bichloride with 8% adds the solution impregnation of 10% hydrogen bromide, pressurization 8Mpa takes out extruding after 5 hours, air-dry, dry under 110 ℃ in air atmosphere then, make the deodorization material.Performance test: handle aldehyde-containing gas, formaldehyde entrance concentration 5ppm, the gas of nitrogen, air, formaldehyde and the water vapour of steam entry concentration 20ppm down with this material normal temperature of 3g.Flow is 15ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 15min, formaldehyde 8 hours.
Embodiment 7
Polyacrylonitrile active carbon fiber 130 ℃ down dry, then added in the solution of 2% hydrogen bromide dipping 3 hours at 10% palladium bichloride, take out extruding, air-dry, then in air atmosphere 130 ℃ dry down, make the deodorize material.Performance test: handle aldehyde-containing gas, formaldehyde entrance concentration 25ppm, the gas of nitrogen, air, formaldehyde and the water vapour of steam entry concentration 100ppm at 50 ℃ with this material of 2g.Flow is 18ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 15min, formaldehyde 10 hours.
Embodiment 8
Polyacrylonitrile radical active carbon fiber is dry down at 110 ℃, then being placed on one can pressurize in the stainless steel device, palladium bichloride with 5% adds the solution impregnation of 10% hydrogen bromide, pressurization 10Mpa, 0.5 take out extruding after hour, air-dry, dry under 150 ℃ in air atmosphere then, make the deodorize material.Performance test: with this material processed aldehyde-containing gas of 2g, formaldehyde entrance concentration 5ppm, the gas of nitrogen, air, formaldehyde and the water vapour of steam entry concentration 50ppm.Flow is 12ml/min, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 20min, formaldehyde 12 hours.
Comparative Examples 1
Adopt former state polyacrylonitrile active carbon fiber (the BET specific area 1156m identical with embodiment 7
2/ g), performance test is with embodiment 7, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 5min, formaldehyde 60min.
Comparative Examples 2
Adopt former state polyacrylonitrile active carbon fiber (the BET specific area 750m identical with embodiment 8
2/ g), performance test is with embodiment 8, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 6min, formaldehyde 80min.
Claims (2)
1. one kind removes the aldehyde odour preparation methods, it is characterized in that: NACF is dry down at 100-150 ℃, working concentration is that the mixed solution of the hydrogen bromide of the palladium bichloride of 0.01-10g/ml and 0.01-10g/ml is under the 0.2-10MPa condition impregnation process 0.5-24 hour at normal pressure or pressure then, take out extruding, air-dry, in 100-150 ℃ of oven dry, make the material that removes aldehyde odour.
2. a kind of aldehyde odour preparation methods that removes as claimed in claim 1 is characterized in that described NACF is polyacrylonitrile active carbon fiber, viscose-based active carbon fiber or asphalt based active carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021165432A CN1136040C (en) | 2002-04-08 | 2002-04-08 | Process for preparing material to remove aldehyde odour |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021165432A CN1136040C (en) | 2002-04-08 | 2002-04-08 | Process for preparing material to remove aldehyde odour |
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| Publication Number | Publication Date |
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| CN1386576A true CN1386576A (en) | 2002-12-25 |
| CN1136040C CN1136040C (en) | 2004-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021165432A Expired - Fee Related CN1136040C (en) | 2002-04-08 | 2002-04-08 | Process for preparing material to remove aldehyde odour |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398609C (en) * | 2006-04-18 | 2008-07-02 | 陕西科技大学 | Method of preparing aldehyde remover by utilizing leather heels |
| CN101574640B (en) * | 2008-05-08 | 2010-12-15 | 王岚 | Mineral micro powder lasting aldehyde and odor removing bag |
-
2002
- 2002-04-08 CN CNB021165432A patent/CN1136040C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398609C (en) * | 2006-04-18 | 2008-07-02 | 陕西科技大学 | Method of preparing aldehyde remover by utilizing leather heels |
| CN101574640B (en) * | 2008-05-08 | 2010-12-15 | 王岚 | Mineral micro powder lasting aldehyde and odor removing bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1136040C (en) | 2004-01-28 |
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