CN1631515A - Catalytic material for removing aldehyde and its preparing process - Google Patents
Catalytic material for removing aldehyde and its preparing process Download PDFInfo
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- CN1631515A CN1631515A CN 200410068069 CN200410068069A CN1631515A CN 1631515 A CN1631515 A CN 1631515A CN 200410068069 CN200410068069 CN 200410068069 CN 200410068069 A CN200410068069 A CN 200410068069A CN 1631515 A CN1631515 A CN 1631515A
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Abstract
The invention unfurls a kind of material of taking off aldehyde and its producing way. Heat the material of many holes at 100--150DEG C, then soak in the excessive metal Ni solution of 0.001--10mol/l at the press of 0.2--10MPa for 0.5--24h, take out and press it, heat at 100-150 degC, then the material is made over. The way is simple, no pollution, it has high efficiency, large vacuum, better than normal material of many holes' carbon.
Description
Technical field
The present invention relates to a kind of sorbing material, relate to specifically a kind of catalytic eliminating volatility pernicious gas material and preparation method thereof, a kind of especially porous carbon material that removes aldehyde-containing gas.
Background technology
In recent years, the seriousness paid more and more attention of room air pollution.Aldehyde materials such as formaldehyde are a kind of common indoor air pollutants, and 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 OrganicCompounds).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.Porous carbon material is the adsorbent of using always.Porous carbon material has a wide range of applications in fields such as chemical industry, environmental protection, defence and military, electronics and the energy owing to have particular structure and performance characteristic.Conventional porous carbon material is a kind ofly to be rich in micropore, nonpolar carbon absorbent, but weak point is the adsorbing and removing poor-performing of porous charcoal PARA FORMALDEHYDE PRILLS(91,95) isopolarity organic compound, and adsorption capacity is lower.
The technical issues that need to address of the present invention be disclose a kind of pollution-free, the rate of adsorption is high and adsorption capacity is big, a kind of catalytic material for removing aldehyde that can the catalytic eliminating aldehyde-containing gas and preparation method thereof, to overcome the above-mentioned defective that prior art exists.
Catalytic material for removing aldehyde of the present invention, its component and weight percent content are:
Porous carbon material 95～99.9999%%
Metallic nickel 0.0001～5%
The porous carbon material of being addressed is selected from particulate porous charcoal, Powdered porous charcoal, cellular porous charcoal or fibrous porous carbon.
The preparation method of catalytic material for removing aldehyde of the present invention comprises the steps:
Porous carbon material be impregnated in nickel salt solution, and dip time is 0.5-24 hour, and gauge pressure pressure is 0-10Mpa, takes out extruding, and is air-dry in the air at normal temperatures, dry under 100-150 ℃ of temperature then, promptly obtains material of the present invention.
The concentration of nickel salt solution is 0.001-10mol/l, and preferred nickel salt is selected from nickelous sulfate, nickel nitrate, nickel acetate or nickel chloride.
In the weight of porous carbon material, the nickel salt addition is 0.0001～5%.
According to optimized technical scheme of the present invention, that porous carbon material is dry down at 100-150 ℃ earlier.
The present invention has the following advantages: the porous carbon material that makes since load on nickel salt, under the catalytic action of slaine, the performance of its full gear has improved.Simultaneously, preparation is simple, and the product that makes is pollution-free, and full gear speed height, capacity are big, effective.
The specific embodiment
Embodiment 1
Particulate porous raw material of wood-charcoal material 100 ℃ down dry, under normal pressure then at the NiSO of 0.01mol/l
4Dipping is 24 hours in the solution, takes out extruding, and is air-dry, dry under 100 ℃ in air atmosphere then, makes material for removing aldehyde.
Performance test: at room temperature handle aldehyde-containing gas with this material of 0.5g, formaldehyde entrance concentration 5ppm, the gas of steam entry concentration 10ppm (nitrogen+air+formaldehyde+water vapour).(flow is 10ml/min), time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 11mins, formaldehyde 3 hours.
Embodiment 2
Powdered porous carbon material 105 ℃ down dry, but then in a stainless steel pressue device under 0.2MPa pressure, in the NiAc of 0.1mol/l
2Dipping is 20 hours in the solution, takes out extruding, and is air-dry, dry under 105 ℃ in air atmosphere then, makes material for removing aldehyde.
Performance test: at room temperature handle aldehyde-containing gas with this material of 0.5g, formaldehyde entrance concentration 10ppm, the gas of steam entry concentration 100ppm (nitrogen+air+formaldehyde+water vapour).(flow is 12ml/min), time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 15mins, formaldehyde 5 hours.
Embodiment 3
The fibrous porous carbon material 110 ℃ down dry, but then in a stainless steel pressue device under 1MPa pressure, in the NiCl of 0.2mol/l
2Dipping is 12 hours in the solution, takes out extruding, and is air-dry, dry under 110 ℃ in air atmosphere then, makes material for removing aldehyde.
Performance test: at room temperature handle aldehyde-containing gas with this material of 0.5g, formaldehyde entrance concentration 15ppm, the gas of steam entry concentration 150ppm (nitrogen+air+formaldehyde+water vapour).(flow is 15ml/min), time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 25mins, formaldehyde 8 hours.
Embodiment 4
Cellular porous raw material of wood-charcoal material 120 ℃ down dry, but then in a stainless steel pressue device under 5MPa pressure, in the Ni of 1mol/l (NO
3)
2Dipping is 6 hours in the solution, takes out extruding, and is air-dry, dry under 120 ℃ in air atmosphere then, makes material for removing aldehyde.
Performance test: handle aldehyde-containing gas, formaldehyde entrance concentration 5ppm, the gas of steam entry concentration 25ppm (nitrogen+air+formaldehyde+water vapour) down at 50 ℃ with this material of 0.5g.(flow is 30ml/min), time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 14mins, formaldehyde 7 hours.
Embodiment 5
Pitch-based fiber shape porous carbon material 130 ℃ down dry, but then in a stainless steel pressue device under 8MPa pressure, the NiCl of 5mol/l
2Dipping is 2 hours in the solution, takes out extruding, and is air-dry, dry under 135 ℃ in air atmosphere then, makes material for removing aldehyde.
Performance test: handle aldehyde-containing gas, formaldehyde entrance concentration 1ppm, the gas of steam entry concentration 25ppm (nitrogen+air+formaldehyde+water vapour) down at 80 ℃ with this material of 0.5g.(flow is 30ml/min), time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 13mins, formaldehyde 5 hours.
Embodiment 6
The cellular porous raw material of wood-charcoal material of viscose glue base 150 ℃ down dry, but then in a stainless steel pressue device under 10MPa pressure, the NiCl of 10mol/l
2Dipping is 0.5 hour in the solution, takes out extruding, and is air-dry, dry under 150 ℃ in air atmosphere then, makes material for removing aldehyde.
Performance test: handle aldehyde-containing gas, formaldehyde entrance concentration 5ppm, the gas of steam entry concentration 20ppm (nitrogen+air+formaldehyde+water vapour) down at 100 ℃ with this material of 0.5g.(flow is 30ml/min), time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 16mins, formaldehyde 4 hours.
Comparative Examples 1
Adopt former state fibrous porous carbon material (the BET specific area 750m identical with embodiment 3
2/ g), performance test is with embodiment 3, and time of break-through (being time of break-through when exit concentration is entrance concentration 5%) is respectively water vapour 5min, formaldehyde 60min.
From above comparing result as can be known, the adsorptive selectivity and the adsorption capacity of dipping back sample PARA FORMALDEHYDE PRILLS(91,95) improve greatly.The performance that removes aldehyde odour that further specifies prepared sample thus owing to load transition metal salt increased substantially.
Claims (9)
1. a catalytic material for removing aldehyde is characterized in that, component and weight percent content are:
Porous carbon material 95～99.9999%%
Metallic nickel 0.0001～5%.
2. material according to claim 1 is characterized in that the porous carbon material of being addressed is selected from particulate porous charcoal, Powdered porous charcoal, cellular porous charcoal or fibrous porous carbon.
3. prepare the method for the catalytic material for removing aldehyde of claim 1 or 2, it is characterized in that, comprise the steps: porous carbon material be impregnated in nickel salt solution, dip time is 0.5-24 hour, and gauge pressure pressure is 0-10Mpa, takes out extruding, air-dry, dry then, promptly obtain catalytic material for removing aldehyde.
4. method according to claim 3 is characterized in that, the concentration of nickel salt solution is 0.001-10mol/l.
5. method according to claim 3 is characterized in that nickel salt is selected from nickelous sulfate, nickel nitrate, nickel acetate or nickel chloride.
6. method according to claim 3 is characterized in that, in the weight of porous carbon material, the nickel salt addition is 0.0001～5%.
7. method according to claim 3 is characterized in that, dip time is 0.5-24 hour, and gauge pressure pressure is 0-10Mpa.
8. method according to claim 3 is characterized in that, and is air-dry in the air at normal temperatures, dry under 100-150 ℃ of temperature then.
9. according to each described method of claim 3～8, it is characterized in that, porous carbon material is dry down at 100-150 ℃ earlier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410068069 CN1631515A (en) | 2004-11-11 | 2004-11-11 | Catalytic material for removing aldehyde and its preparing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410068069 CN1631515A (en) | 2004-11-11 | 2004-11-11 | Catalytic material for removing aldehyde and its preparing process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527228A (en) * | 2011-12-31 | 2012-07-04 | 南京亿谱环境服务有限公司 | Novel visible color change formaldehyde scavenger |
| CN108892982A (en) * | 2018-05-16 | 2018-11-27 | 芜湖市创源新材料有限公司 | A kind of preparation method of construction wall pollution absorption coating |
| CN112143294A (en) * | 2020-07-18 | 2020-12-29 | 绍兴市上虞区理工高等研究院 | Preparation method of interior wall coating with formaldehyde removing function |
-
2004
- 2004-11-11 CN CN 200410068069 patent/CN1631515A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527228A (en) * | 2011-12-31 | 2012-07-04 | 南京亿谱环境服务有限公司 | Novel visible color change formaldehyde scavenger |
| CN102527228B (en) * | 2011-12-31 | 2015-11-18 | 南京亿谱环境服务有限公司 | A kind of formaldehyde scavenger of visible color change |
| CN108892982A (en) * | 2018-05-16 | 2018-11-27 | 芜湖市创源新材料有限公司 | A kind of preparation method of construction wall pollution absorption coating |
| CN112143294A (en) * | 2020-07-18 | 2020-12-29 | 绍兴市上虞区理工高等研究院 | Preparation method of interior wall coating with formaldehyde removing function |
| CN112143294B (en) * | 2020-07-18 | 2021-09-07 | 绍兴市上虞区理工高等研究院 | Preparation method of interior wall coating with formaldehyde removing function |
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