CN106179221A - The modified activated carbon of adsorption of Low Concentration formaldehyde - Google Patents
The modified activated carbon of adsorption of Low Concentration formaldehyde Download PDFInfo
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- CN106179221A CN106179221A CN201610639661.8A CN201610639661A CN106179221A CN 106179221 A CN106179221 A CN 106179221A CN 201610639661 A CN201610639661 A CN 201610639661A CN 106179221 A CN106179221 A CN 106179221A
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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
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
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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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
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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
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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Abstract
The invention discloses the modified activated carbon of a kind of adsorption of Low Concentration formaldehyde, its preparation method comprises the following steps: a, oxidation: after soaking activated carbon 2.0～3.5h with the potassium permanganate solution ultrasonic wave concussion that mass concentration is 3%～5%, filters, dry for standby；B, modification: join in the zinc chloride and magnesium sulfate mixed solution that molar concentration is 1.0～2.0mol/L by the activated carbon after oxidation, soak 8～10h in 35～40 DEG C of ultrasonic wave concussion, and wherein, zinc chloride is 1:1 with the mol ratio of magnesium sulfate；C, be dried: by after modification activated carbon filter, natural air drying；D, at N2Under protection, calcining: d1: dried activated carbon is calcined at 300～400 DEG C 2～3h；D2: calcine 1～2h at 400～500 DEG C；D3: calcine 0.5～1h at 500～600 DEG C.The clearance of the activated carbon PARA FORMALDEHYDE PRILLS(91,95) after process is high.
Description
Technical field
The invention belongs to air purification field, particularly relate to the modified activated carbon of a kind of adsorption of Low Concentration formaldehyde.
Background technology
There are equipment and the technology of the middle formaldehyde that much purifies the air of a room in the market, are broadly divided into following two: 1,
Physical adsorption techniques, removes formaldehyde mainly by various porous materials by physical absorption.It is most commonly used that activated carbon,
In addition with molecular sieve, bentonite, perlite, cristobalite.Gaseous state aldehydes is difficult with traditional activated carbon and carries out physical absorption,
The particularly gas to low concentration, after adsorption equilibrium, poor stability, easily it is desorbed, is easily changed by variations in temperature and concentration of formaldehyde
Impact.2, chemistry neutralization technology, some companies develop at present various eliminating smell agents and formaldehyde catching agent, typically use complexation
Technology, the molecular structure destroying formaldehyde achieves the goal, but high cost, not yet combine fitting-out work and use.
Summary of the invention
The technical problem to be solved is to provide the modified activated carbon of a kind of adsorption of Low Concentration formaldehyde.
The present invention solves the modified activated carbon of the adsorption of Low Concentration formaldehyde that its technical problem is used, and its preparation method includes
Following steps:
A, oxidation: soak activated carbon 2～3.5h with the potassium permanganate solution ultrasonic wave concussion that mass concentration is 3%～5%
After, filter, dry for standby；
B, modification: the activated carbon after oxidation is joined the zinc chloride and sulfur that molar concentration is 1.0～2.0mol/L
In acid magnesium mixed solution, soaking 8～10h in 35～40 DEG C of ultrasonic wave concussion, wherein, zinc chloride is 1 with the mol ratio of magnesium sulfate:
1；
C, be dried: by after modification activated carbon filter, natural air drying；
D, calcining:
D1: at N2Under protection, dried for step c activated carbon is calcined at 300～400 DEG C 2～3h, obtain once activity
Charcoal；
D2: at N2Under protection, an activated carbon is calcined 1～2h at 400～500 DEG C, obtains secondary activated carbon；
D3: at N2Under protection, secondary activated carbon is calcined at 500～600 DEG C 0.5～1h.
Preferably, in a step, soak activated carbon 3.0h with the potassium permanganate solution ultrasonic wave concussion that mass concentration is 4%.
Preferably, in b step, the activated carbon after oxidation is joined the zinc chloride and sulphuric acid that molar concentration is 1.8mol/L
In magnesium mixed solution, soak 9h in 37 DEG C of ultrasonic wave concussion.
Preferably, in Step d:
D1: at N2Under protection, dried for step c activated carbon is calcined at 320～360 DEG C 2.5h, obtain once activity
Charcoal；
D2: at N2Under protection, an activated carbon is calcined 1.5h at 430～480 DEG C, obtains secondary activated carbon；
D3: at N2Under protection, secondary activated carbon is calcined at 540～560 DEG C 0.8h.
The invention has the beneficial effects as follows: the modified activated carbon of the adsorption of Low Concentration formaldehyde of the present invention, the removal of its PARA FORMALDEHYDE PRILLS(91,95)
Rate is high, even if concentration of formaldehyde≤10ppm, clearance also can reach more than 93%.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described.
The modified activated carbon of the adsorption of Low Concentration formaldehyde of the present invention, its preparation method comprises the following steps:
A, oxidation: soak activated carbon 2～3.5h with the potassium permanganate solution ultrasonic wave concussion that mass concentration is 3%～5%
After, filter, dry for standby；
B, modification: the activated carbon after oxidation is joined the zinc chloride and sulfur that molar concentration is 1.0～2.0mol/L
In acid magnesium mixed solution, soak 8～10h in 35～40 DEG C of ultrasonic wave concussion；Wherein, zinc chloride is 1 with the mol ratio of magnesium sulfate:
1；
C, be dried: by after modification activated carbon filter, natural air drying；
D, calcining:
D1: at N2Under protection, dried for step c activated carbon is calcined at 300～400 DEG C 2～3h, obtain once activity
Charcoal；
D2: at N2Under protection, an activated carbon is calcined 1～2h at 400～500 DEG C, obtains secondary activated carbon；
D3: at N2Under protection, secondary activated carbon is calcined at 500～600 DEG C 0.5～1h.
Preferably, in a step, soak activated carbon 3.0h with the potassium permanganate solution ultrasonic wave concussion that mass concentration is 4%.
Preferably, in b step, the activated carbon after oxidation is joined the zinc chloride and sulphuric acid that molar concentration is 1.8mol/L
In magnesium mixed solution, soak 9h in 37 DEG C of ultrasonic wave concussion.
Preferably, in Step d:
D1: at N2Under protection, dried for step c activated carbon is calcined at 320～360 DEG C 2.5h, obtain once activity
Charcoal；
D2: at N2Under protection, an activated carbon is calcined 1.5h at 430～480 DEG C, obtains secondary activated carbon；
D3: at N2Under protection, secondary activated carbon is calcined at 540～560 DEG C 0.8h.
Embodiment 1:
Take activated carbon 8g, after soaking activated carbon 3.5h with the potassium permanganate solution ultrasonic wave concussion that mass concentration is 3%, mistake
Filter, dry for standby, filters, dry for standby；Activated carbon after oxidation is joined zinc chloride that molar concentration is 1.0mol/L and
In magnesium sulfate mixed solution, soaking 10h in 36 DEG C of ultrasonic wave concussion, wherein, zinc chloride is 1:1 with the mol ratio of magnesium sulfate；Cross
Filter, natural air drying；At N2Under protection, at 350 DEG C, calcine 2.5h, obtain an activated carbon；At N2Under protection, by an activated carbon
At 400 DEG C, calcine 2h, obtain secondary activated carbon；At N2Under protection, secondary activated carbon is calcined at 500 DEG C 1h.
It is 1m by the volume that the modified activated carbon using above-mentioned preparation method to prepare is placed in concentration of formaldehyde 10ppm3Airtight
In device, the clearance of its PARA FORMALDEHYDE PRILLS(91,95) is 93.5%.
Embodiment 2:
Take activated carbon 8g, after soaking activated carbon 3.0h with the potassium permanganate solution ultrasonic wave concussion that mass concentration is 4%, mistake
Filter, dry for standby；Activated carbon after oxidation is joined the zinc chloride and magnesium sulfate mixed solution that molar concentration is 1.8mol/L
In, soak 9h in 37 DEG C of ultrasonic wave concussion, wherein, zinc chloride is 1:1 with the mol ratio of magnesium sulfate；Filter, natural air drying；At N2
Under protection, at 340 DEG C, calcine 2.5h, obtain an activated carbon；At N2Under protection, an activated carbon is calcined at 450 DEG C
1.5h, obtains secondary activated carbon；At N2Under protection, secondary activated carbon is calcined at 550 DEG C 0.8h.
The modified activated carbon using above-mentioned preparation method to prepare is placed in the volume that concentration of formaldehyde is 10ppm is 1m3Close
Closing in device, the clearance of its PARA FORMALDEHYDE PRILLS(91,95) is 95.2%.
Embodiment 3:
Take activated carbon 8g, after soaking activated carbon 2.0h with the potassium permanganate solution ultrasonic wave concussion that mass concentration is 5%, mistake
Filter, dry for standby；Activated carbon after oxidation is joined the zinc chloride and magnesium sulfate mixed solution that molar concentration is 2.0mol/L
In, soak 8h in 37 DEG C of ultrasonic wave concussion, wherein, zinc chloride is 1:1 with the mol ratio of magnesium sulfate；Filter, natural air drying；At N2
Under protection, at 390 DEG C, calcine 2h, obtain an activated carbon；At N2Under protection, an activated carbon is calcined 1h at 480 DEG C,
Secondary activated carbon；At N2Under protection, secondary activated carbon is calcined at 600 DEG C 0.5h.
The modified activated carbon using above-mentioned preparation method to prepare is placed in the volume that concentration of formaldehyde is 8ppm is 1m3Airtight
In device, the clearance of its PARA FORMALDEHYDE PRILLS(91,95) is 95.4%.
Embodiment 4:
After soaking activated carbon 2.0h with the potassium permanganate solution ultrasonic wave concussion that mass concentration is 5%, filter, dry standby
With；Activated carbon after oxidation is joined in the zinc chloride and magnesium sulfate mixed solution that molar concentration is 1.4mol/L, in 37 DEG C
Ultrasonic wave concussion soaks 10h, and wherein, zinc chloride is 1:1 with the mol ratio of magnesium sulfate；Filter, natural air drying；At N2Under protection,
At 330 DEG C, calcine 2.5h, obtain an activated carbon；At N2Under protection, an activated carbon is calcined 1.5h at 450 DEG C, obtains two
Secondary activated carbon；At N2Under protection, secondary activated carbon is calcined at 560 DEG C 0.8h.
The modified activated carbon using above-mentioned preparation method to prepare is placed in the volume that concentration of formaldehyde is 6ppm is 1m3Airtight
In device, the clearance of its PARA FORMALDEHYDE PRILLS(91,95) is 96.3%.
Claims (4)
1. the modified activated carbon of adsorption of Low Concentration formaldehyde, it is characterised in that its preparation method comprises the following steps:
A, oxidation: after soaking activated carbon 2.0～3.5h with the potassium permanganate solution ultrasonic wave concussion that mass concentration is 3%～5%,
Filter, dry for standby；
B, modification: the activated carbon after oxidation is joined the zinc chloride and magnesium sulfate that molar concentration is 1.0～2.0mol/L
In mixed solution, soaking 8～10h in 35～40 DEG C of ultrasonic wave concussion, wherein, zinc chloride is 1:1 with the mol ratio of magnesium sulfate；
C, be dried: by after modification activated carbon filter, natural air drying；
D, calcining:
D1: at N2Under protection, dried for step c activated carbon is calcined at 300～400 DEG C 2～3h, obtains an activated carbon；
D2: at N2Under protection, an activated carbon is calcined 1～2h at 400～500 DEG C, obtains secondary activated carbon；
D3: at N2Under protection, secondary activated carbon is calcined at 500～600 DEG C 0.5～1h.
2. the modified activated carbon of adsorption of Low Concentration formaldehyde as claimed in claim 1, it is characterised in that: in a step, dense by quality
Degree is the potassium permanganate solution ultrasonic wave concussion immersion activated carbon 3.0h of 4%.
3. the modified activated carbon of adsorption of Low Concentration formaldehyde as claimed in claim 1 or 2, it is characterised in that: in b step, by oxygen
Activated carbon after change joins in the zinc chloride and magnesium sulfate mixed solution that molar concentration is 1.8mol/L, shakes in 37 DEG C of ultrasound wave
Swing immersion 9h.
4. the modified activated carbon of adsorption of Low Concentration formaldehyde as claimed any one in claims 1 to 3, it is characterised in that:
In Step d:
D1: at N2Under protection, dried for step c activated carbon is calcined at 320～360 DEG C 2.5h, obtains an activated carbon；
D2: at N2Under protection, an activated carbon is calcined 1.5h at 430～480 DEG C, obtains secondary activated carbon；
D3: at N2Under protection, secondary activated carbon is calcined at 540～560 DEG C 0.8h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610639661.8A CN106179221A (en) | 2016-08-05 | 2016-08-05 | The modified activated carbon of adsorption of Low Concentration formaldehyde |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610639661.8A CN106179221A (en) | 2016-08-05 | 2016-08-05 | The modified activated carbon of adsorption of Low Concentration formaldehyde |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486148A (en) * | 2017-08-01 | 2017-12-19 | 上海纳米技术及应用国家工程研究中心有限公司 | A kind of niobium modified activated carbon preparation method and products thereof and application |
| CN107649094A (en) * | 2017-11-07 | 2018-02-02 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of purifying formaldehyde composite and products thereof and application |
| CN108940223A (en) * | 2018-08-04 | 2018-12-07 | 安徽科浦环保科技有限公司 | A kind of preparation method of the compound scavenger of indoor formaldehyde |
| CN109012154A (en) * | 2018-08-04 | 2018-12-18 | 安徽科浦环保科技有限公司 | A kind of preparation method of modified tea grounds formaldehyde adsorbent |
| CN109663567A (en) * | 2018-12-29 | 2019-04-23 | 安徽蓝鼎环保能源科技有限公司 | A method of exhaust-gas treatment material is prepared using multiple roasting method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000233913A (en) * | 1999-02-10 | 2000-08-29 | Osaka Gas Co Ltd | Gas storage material using deposited-metal-containing active carbon and its production |
| CN103769053A (en) * | 2014-02-28 | 2014-05-07 | 东北林业大学 | Preparation method for activated carbon special for removal of low-concentration formaldehyde in room |
-
2016
- 2016-08-05 CN CN201610639661.8A patent/CN106179221A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000233913A (en) * | 1999-02-10 | 2000-08-29 | Osaka Gas Co Ltd | Gas storage material using deposited-metal-containing active carbon and its production |
| CN103769053A (en) * | 2014-02-28 | 2014-05-07 | 东北林业大学 | Preparation method for activated carbon special for removal of low-concentration formaldehyde in room |
Non-Patent Citations (1)
| Title |
|---|
| 张立珠等: "《水处理剂 配方·制备·应用》", 31 January 2011, 化学工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486148A (en) * | 2017-08-01 | 2017-12-19 | 上海纳米技术及应用国家工程研究中心有限公司 | A kind of niobium modified activated carbon preparation method and products thereof and application |
| CN107649094A (en) * | 2017-11-07 | 2018-02-02 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of purifying formaldehyde composite and products thereof and application |
| CN108940223A (en) * | 2018-08-04 | 2018-12-07 | 安徽科浦环保科技有限公司 | A kind of preparation method of the compound scavenger of indoor formaldehyde |
| CN109012154A (en) * | 2018-08-04 | 2018-12-18 | 安徽科浦环保科技有限公司 | A kind of preparation method of modified tea grounds formaldehyde adsorbent |
| CN109663567A (en) * | 2018-12-29 | 2019-04-23 | 安徽蓝鼎环保能源科技有限公司 | A method of exhaust-gas treatment material is prepared using multiple roasting method |
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