CN106944025A - A kind of renovation process of Powdered Activated Carbon - Google Patents
A kind of renovation process of Powdered Activated Carbon Download PDFInfo
- Publication number
- CN106944025A CN106944025A CN201710266782.7A CN201710266782A CN106944025A CN 106944025 A CN106944025 A CN 106944025A CN 201710266782 A CN201710266782 A CN 201710266782A CN 106944025 A CN106944025 A CN 106944025A
- Authority
- CN
- China
- Prior art keywords
- activated carbon
- powdered activated
- dried
- renovation process
- carbide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
-
- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
- B01J20/3466—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase with steam
-
- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
Abstract
The present invention relates to a kind of renovation process of Powdered Activated Carbon, the Powdered Activated Carbon by water content for 30 80% adsorption saturation is dried, and obtains dried Powdered Activated Carbon；Dried Powdered Activated Carbon is heated and carbonized, carbide is obtained；Heat up and be passed through vapor, the intake of vapor accounts for the 15 35% of dried Powdered Activated Carbon quality, carbide is activated, room temperature is then down to, produced.Present invention process is simple, low cost, and yield is high, and the activated carbon of adsorption saturation is after this method is handled, and adsorption activity is restored, close to the index before use.
Description
Technical field
The present invention relates to a kind of renovation process of Powdered Activated Carbon, belong to technical field of fine.
Background technology
Activated carbon is that a kind of pore structure is very flourishing, specific surface area is very big, nonpoisonous and tasteless sorbing material, at present in city
Application in terms of city's sewage, advanced treatment of industrial waste water and Purification of Polluted Sources of Water is widely.But, due to activated carbon price
Height, the resources of production are more and more in short supply, if the activated carbon of adsorption saturation is discarded, and certainly will cause the wasting of resources, and can be to environment
Secondary pollution is caused, therefore, from the point of view of economical and environmentally friendly, the regeneration of activated carbon is significant.
At present, the technology regenerated to activated carbon mainly has：Chemical agent method of reproduction, hot recycling method, bio-regeneration method,
Electrochemical regeneration method etc..Wherein the most universal using thermal reclamation application, it is organic that the method, which is applied to nearly all adsorbate,
The saturated activity charcoal of thing.But the regenerated carbon yield that hot recycling method is obtained is than relatively low.
The content of the invention
Present invention aim to address the deficiencies in the prior art, there is provided a kind of renovation process of Powdered Activated Carbon, this method
Yield is higher.
Technical scheme
A kind of renovation process of Powdered Activated Carbon, comprises the following steps：
(1) Powdered Activated Carbon by water content for 30-80% adsorption saturation is dried, and obtains dried powder and lives
Property charcoal；
(2) dried Powdered Activated Carbon is heated and carbonized, obtain carbide；
(3) heat up and be passed through vapor, carbide is activated, room temperature is then down to, produced.
In step (3), the intake of vapor accounts for the 15-35% of dried Powdered Activated Carbon quality.
Further, in step (1), the drying temperature is 110-150 DEG C, and the time is 0.5-1.5h.
Further, in step (2), the carbonization temperature is 300-600 DEG C, and the time is 1-3h.
Further, in step (3), activation temperature is 800-900 DEG C, and the time is 1-3h.
Beneficial effects of the present invention：The activated carbon of adsorption saturation is after this method is handled, and adsorption activity is restored, and connects
Index before nearly use.Present invention process is simple, low cost, and yield is high, can produce good social and economic benefit.
Embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
Powdered Activated Carbon by moisture content for 40% adsorption saturation is dried, and obtains dried Powdered Activated Carbon,
Drying temperature is 115 DEG C, and the time is 1h；Dried Powdered Activated Carbon is heated and carbonized, carbonization temperature is 400 DEG C, and the time is
2h, obtains carbide；Vapor is passed through, the intake of vapor accounts for the 15% of charing amount of substance, carbide is activated, activation temperature
Spend for 850 DEG C, the time is 1.5h, is then down to room temperature, produces regenerated carbon.
Experiment is measured：Regenerated carbon yield is 86%, and Methylene blue adsorption is the 10ml (methylene blues of new activated carbon
Decolorizing ability is 10.5ml).
Embodiment 2
Powdered Activated Carbon by moisture content for 60% adsorption saturation is dried, and obtains dried Powdered Activated Carbon,
Drying temperature is 125 DEG C, and the time is 1h；Dried Powdered Activated Carbon is heated and carbonized, carbonization temperature is 500 DEG C, and the time is
1.5h, obtains carbide；Vapor is passed through, the intake of vapor accounts for the 20% of charing amount of substance, carbide is activated, activates
Temperature is 880 DEG C, and the time is 2h, is then down to room temperature, produces regenerated carbon.
Experiment is measured：Regenerated carbon yield is 83%, and Methylene blue adsorption is the 9.5ml (methylene of new activated carbon
Blue decolorizing ability is 10.5ml).
Embodiment 3
Powdered Activated Carbon by moisture content for 30% adsorption saturation is dried, and obtains dried Powdered Activated Carbon,
Drying temperature is 140 DEG C, and the time is 1h；Dried Powdered Activated Carbon is heated and carbonized, carbonization temperature is 500 DEG C, and the time is
1h, obtains carbide；Vapor is passed through, the intake of vapor accounts for the 30% of charing amount of substance, carbide is activated, activation temperature
Spend for 850 DEG C, the time is 1h, is then down to room temperature, produces regenerated carbon.
Experiment is measured：Regenerated carbon yield is 88%, and Methylene blue adsorption is the 10.2ml (methylene of new activated carbon
Blue decolorizing ability is 10.5ml).
Claims (4)
1. a kind of renovation process of Powdered Activated Carbon, it is characterised in that comprise the following steps：
(1) Powdered Activated Carbon by water content for 30-80% adsorption saturation is dried, and obtains dried powder activity
Charcoal；
(2) dried Powdered Activated Carbon is heated and carbonized, obtain carbide；
(3) heat up and be passed through vapor, carbide is activated, room temperature is then down to, produced.
In step (3), the intake of vapor accounts for the 15-35% of dried Powdered Activated Carbon quality.
2. the renovation process of Powdered Activated Carbon as claimed in claim 1, it is characterised in that in step (1), the drying temperature
For 110-150 DEG C, the time is 0.5-1.5h.
3. the renovation process of Powdered Activated Carbon as claimed in claim 1, it is characterised in that in step (2), the carbonization temperature
For 300-600 DEG C, the time is 1-3h.
4. the renovation process of the Powdered Activated Carbon as described in claim 1 or 2 or 3, it is characterised in that in step (3), activation temperature
Spend for 800-900 DEG C, the time is 1-3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266782.7A CN106944025A (en) | 2017-04-21 | 2017-04-21 | A kind of renovation process of Powdered Activated Carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266782.7A CN106944025A (en) | 2017-04-21 | 2017-04-21 | A kind of renovation process of Powdered Activated Carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106944025A true CN106944025A (en) | 2017-07-14 |
Family
ID=59476627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710266782.7A Pending CN106944025A (en) | 2017-04-21 | 2017-04-21 | A kind of renovation process of Powdered Activated Carbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106944025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354832A (en) * | 2019-07-10 | 2019-10-22 | 南京安捷特环保科技有限公司 | Regeneration method of active carbon |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381305A (en) * | 2001-04-16 | 2002-11-27 | 谢仁智 | Process for regenerating activated carbon |
-
2017
- 2017-04-21 CN CN201710266782.7A patent/CN106944025A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381305A (en) * | 2001-04-16 | 2002-11-27 | 谢仁智 | Process for regenerating activated carbon |
Non-Patent Citations (1)
| Title |
|---|
| 翁元声: "活性炭再生及新技术研究", 《给水排水》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354832A (en) * | 2019-07-10 | 2019-10-22 | 南京安捷特环保科技有限公司 | Regeneration method of active carbon |
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170714 |