CN109734087A - A method of high surface area activated carbon is prepared using waste and old honeycomb - Google Patents
A method of high surface area activated carbon is prepared using waste and old honeycomb Download PDFInfo
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- CN109734087A CN109734087A CN201910081825.3A CN201910081825A CN109734087A CN 109734087 A CN109734087 A CN 109734087A CN 201910081825 A CN201910081825 A CN 201910081825A CN 109734087 A CN109734087 A CN 109734087A
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Abstract
The invention proposes a kind of method for preparing high surface area activated carbon using waste and old honeycomb, drying one: the waste and old honeycomb of collection is subjected to drying and processing under vacuum condition, vacuum degree is 0.05-0.08 MPa, and drying time 5-10h, drying temperature is 50-90 DEG C；Pre- carbonization: the waste and old honeycomb of drying is subjected to pre- carbonization treatment, pre- carburizing temperature is 150-300 DEG C, and pre- carbonization time is 0.5-2h: activation under protective atmosphere: activator is added into the waste and old honeycomb after pre- carbonization, impregnating active 1-5h under the conditions of 30-50 DEG C；Extraction: the activator in honeycomb waste and old after activation is extracted using extractant；Drying two: the pretreatment object obtained after filtering is placed in drying unit and carries out drying and processing removal extractant；High temperature cabonization: the pretreatment object of drying carries out high temperature cabonization processing under protective atmosphere, and carburizing temperature is 300-500 DEG C, and the high temperature cabonization time is 1-5h；This technique prepares active carbon and not only recycle but also can turn waste into wealth by discarded honeycomb, generates certain economic benefit.
Description
Technical field
The present invention relates to active carbon manufacture technology fields, specially a kind of to prepare high surface area activated carbon using waste and old honeycomb
Method.
Background technique
Active carbon is due to having flourishing pore structure and huge specific surface area (500-3000 m2/ g), it makes it have
Excellent absorption property, in gas, solution organic or inorganic substance and colloidal solid etc. have very strong adsorption capacity, and
With the characteristics such as good chemical stability, high mechanical strength and acidproof, alkaline-resisting, heat-resisting, not soluble in water and organic solvent, failure
Regenerating easily etc. afterwards makes it have extensive and important purposes in all trades and professions.Mostly use coal, wood materials greatly both at home and abroad at present
Or petroleum coke prepares various active carbons as raw material.In waste and old honeycomb containing beeswax, resin, grease, pigment, tannin, carbohydrate,
Organic acid, fatty acid, glucoside, enzyme and insect hormone etc., carbon rich in these substances make it have preparation activity
The feasibility of charcoal, the technique that the prior art does not prepare active carbon using discarded honeycomb.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of waste and old honeycomb of utilization and prepares high surface
The method of product active carbon is re-introduced into activator and is dissolved non-carbon as raw material using waste and old honeycomb using first partially carbonized organic matter
The part organic matter of change carries out pore-creating, finally carries out carbonization and obtains active carbon, the specific surface area of active carbon is up to 500m2/
g-3000m2/ g, this technique prepare active carbon and not only recycle but also can turn waste into wealth by discarded honeycomb,
Certain economic benefit is generated, the problems in background technique can be effectively solved.
To achieve the above object, the present invention proposes: a method of high surface area activated carbon being prepared using waste and old honeycomb, is wrapped
Include following steps:
Drying one: the waste and old honeycomb of collection is subjected to drying and processing under vacuum condition, vacuum degree is 0.05-0.08 MPa, drying
Time is 5-10h, and drying temperature is 50-90 DEG C；
Pre- carbonization: carrying out pre- carbonization treatment for the waste and old honeycomb of drying under protective atmosphere, and pre- carburizing temperature is 150-300 DEG C,
Pre- carbonization time is 0.5-2h:
Activation: activator is added into the waste and old honeycomb after pre- carbonization, impregnating active 1-5h under the conditions of 30-50 DEG C；
Extraction: being extracted the activator in honeycomb waste and old after activation using extractant, and extraction temperature is 20-35 DEG C, extraction
Time is 1-2h, and stirring rate is 50-200r/min when extraction；
Drying two: the pretreatment object obtained after filtering is placed in drying unit and carries out drying and processing removal extractant, drying temperature
Degree is 50-80 DEG C, drying time 1-3h；
High temperature cabonization: the pretreatment object of drying carries out high temperature cabonization processing under protective atmosphere, and carburizing temperature is 300-500 DEG C,
The high temperature cabonization time is 1-5h；
Further include crushing and screening as a preferred technical solution of the present invention: the substance obtained after high temperature cabonization is subjected to powder
It is broken, it then sieves with 100 mesh sieve, obtains activated carbon product, specific surface area is 2000 m2/g。
As a preferred technical solution of the present invention: the weight ratio toward waste and old honeycomb and activator after pre- carbonization is 1:
1.5-5。
As a preferred technical solution of the present invention: activator is carbon tetrachloride.
As a preferred technical solution of the present invention: extractant is methylene chloride.
As a preferred technical solution of the present invention: protective atmosphere is high pure nitrogen or argon gas.
Compared with prior art, the beneficial effects of the present invention are: using waste and old honeycomb as raw material, using first partially carbonized
Organic matter is re-introduced into the part organic matter that activator dissolution is not carbonized and carries out pore-creating, finally carries out carbonization and obtain active carbon,
The specific surface area of active carbon is up to 500m2/g-3000m2/ g, this technique prepare active carbon and can not only carry out discarded honeycomb
It recycles but also can turn waste into wealth, generate certain economic benefit.
Detailed description of the invention
Fig. 1 is a kind of flow chart for the method that high surface area activated carbon is prepared using waste and old honeycomb of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention the following technical schemes are provided:
Embodiment one:
A method of high surface area activated carbon is prepared using waste and old honeycomb, comprising the following steps:
Drying one: the waste and old honeycomb of collection is subjected to drying and processing under vacuum condition, vacuum degree 0.05MPa, drying time is
5h, drying temperature are 50 DEG C；
Pre- carbonization: the waste and old honeycomb of drying is subjected to pre- carbonization treatment under protective atmosphere, pre- carburizing temperature is 150 DEG C, pre- carbon
The change time is 0.5h:
Activation: carbon tetrachloride is added into the waste and old honeycomb after pre- carbonization, impregnating active 1h under the conditions of 30 DEG C；
Extraction: being come out the carbon tetrachloride extraction in honeycomb waste and old after activation using methylene chloride, and extraction temperature is 20 DEG C, extraction
Time is 1h, and stirring rate is 50r/min when extraction；
Drying two: the pretreatment object obtained after filtering is placed in drying unit and carries out drying and processing removal methylene chloride, drying
Temperature is 50 DEG C, drying time 1h；
High temperature cabonization: the pretreatment object of drying carries out high temperature cabonization processing under protective atmosphere, and carburizing temperature is 300 DEG C, high temperature
Carbonization time is 1h；
Crushing and screening: the substance obtained after high temperature cabonization being crushed, is then sieved with 100 mesh sieve, and obtains activated carbon product, ratio
Surface area is 2000 m2/g。
Weight ratio toward waste and old honeycomb and carbon tetrachloride after pre- carbonization is 1:1.5.
Protective atmosphere is high pure nitrogen.
Embodiment two:
A method of high surface area activated carbon is prepared using waste and old honeycomb, comprising the following steps:
Drying one: the waste and old honeycomb of collection is subjected to drying and processing under vacuum condition, vacuum degree is 0.07 MPa, and drying time is
7h, drying temperature are 65 DEG C；
Pre- carbonization: the waste and old honeycomb of drying is subjected to pre- carbonization treatment under protective atmosphere, pre- carburizing temperature is 200 DEG C, pre- carbon
The change time is 0.7h:
Activation: carbon tetrachloride is added into the waste and old honeycomb after pre- carbonization, impregnating active 3h under the conditions of 35 DEG C；
Extraction: being come out the carbon tetrachloride extraction in honeycomb waste and old after activation using methylene chloride, and extraction temperature is 25 DEG C, extraction
Time is 1.5h, and stirring rate is 100r/min when extraction；
Drying two: the pretreatment object obtained after filtering is placed in drying unit and carries out drying and processing removal methylene chloride, drying
Temperature is 75 DEG C, drying time 2h；
High temperature cabonization: the pretreatment object of drying carries out high temperature cabonization processing under protective atmosphere, and carburizing temperature is 400 DEG C, high temperature
Carbonization time is 3h；
Crushing and screening: the substance obtained after high temperature cabonization being crushed, is then sieved with 100 mesh sieve, and obtains activated carbon product, ratio
Surface area is 2000 m2/g。
Weight ratio toward waste and old honeycomb and carbon tetrachloride after pre- carbonization is 1:2.
Protective atmosphere is high-purity argon gas.
Embodiment three:
A method of high surface area activated carbon is prepared using waste and old honeycomb, comprising the following steps:
Drying one: the waste and old honeycomb of collection is subjected to drying and processing under vacuum condition, vacuum degree is 0.07 MPa, and drying time is
7h, drying temperature are 85 DEG C；
Pre- carbonization: the waste and old honeycomb of drying is subjected to pre- carbonization treatment under protective atmosphere, pre- carburizing temperature is 200 DEG C, pre- carbon
The change time is 1.5h:
Activation: carbon tetrachloride is added into the waste and old honeycomb after pre- carbonization, impregnating active 2h under the conditions of 30-50 DEG C；
Extraction: being come out the carbon tetrachloride extraction in honeycomb waste and old after activation using methylene chloride, and extraction temperature is 30 DEG C, extraction
Time is 1.5h, and stirring rate is 150r/min when extraction；
Drying two: the pretreatment object obtained after filtering is placed in drying unit and carries out drying and processing removal methylene chloride, drying
Temperature is 70 DEG C, drying time 2h；
High temperature cabonization: the pretreatment object of drying carries out high temperature cabonization processing under protective atmosphere, and carburizing temperature is 450 DEG C, high temperature
Carbonization time is 3h；
Crushing and screening: the substance obtained after high temperature cabonization being crushed, is then sieved with 100 mesh sieve, and obtains activated carbon product, ratio
Surface area is 2000 m2/g。
Weight ratio toward waste and old honeycomb and carbon tetrachloride after pre- carbonization is 1:2.
Protective atmosphere is high-purity argon gas.
Example IV:
A method of high surface area activated carbon is prepared using waste and old honeycomb, comprising the following steps:
Drying one: the waste and old honeycomb of collection is subjected to drying and processing under vacuum condition, vacuum degree is 0.08 MPa, and drying time is
10h, drying temperature are 90 DEG C；
Pre- carbonization: the waste and old honeycomb of drying is subjected to pre- carbonization treatment under protective atmosphere, pre- carburizing temperature is 300 DEG C, pre- carbon
The change time is 2h:
Activation: carbon tetrachloride is added into the waste and old honeycomb after pre- carbonization, impregnating active 5h under the conditions of 50 DEG C；
Extraction: being come out the carbon tetrachloride extraction in honeycomb waste and old after activation using methylene chloride, and extraction temperature is 35 DEG C, extraction
Time is 2h, and stirring rate is 200r/min when extraction；
Drying two: the pretreatment object obtained after filtering is placed in drying unit and carries out drying and processing removal methylene chloride, drying
Temperature is 80 DEG C, drying time 3h；
High temperature cabonization: the pretreatment object of drying carries out high temperature cabonization processing under protective atmosphere, and carburizing temperature is 500 DEG C, high temperature
Carbonization time is 5h；
Crushing and screening: the substance obtained after high temperature cabonization being crushed, is then sieved with 100 mesh sieve, and obtains activated carbon product, ratio
Surface area is 2000 m2/g。
Weight ratio toward waste and old honeycomb and carbon tetrachloride after pre- carbonization is 1:5.
Protective atmosphere is high-purity argon gas.
Benefit of the present invention: activator dissolution is re-introduced into using first partially carbonized organic matter as raw material using waste and old honeycomb
The part organic matter not being carbonized carries out pore-creating, finally carries out carbonization and obtains active carbon, the specific surface area of active carbon is reachable
500m2/g-3000m2/ g, this technique prepare active carbon and not only recycle but also can become useless by discarded honeycomb
For treasured, certain economic benefit is generated.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of method for preparing high surface area activated carbon using waste and old honeycomb, it is characterised in that: the following steps are included:
Drying one: the waste and old honeycomb of collection is subjected to drying and processing under vacuum condition, vacuum degree is 0.05-0.08 MPa, drying
Time is 5-10h, and drying temperature is 50-90 DEG C；
Pre- carbonization: carrying out pre- carbonization treatment for the waste and old honeycomb of drying under protective atmosphere, and pre- carburizing temperature is 150-300 DEG C,
Pre- carbonization time is 0.5-2h:
Activation: activator is added into the waste and old honeycomb after pre- carbonization, impregnating active 1-5h under the conditions of 30-50 DEG C；
Extraction: being extracted the activator in honeycomb waste and old after activation using extractant, and extraction temperature is 20-35 DEG C, extraction
Time is 1-2h, and stirring rate is 50-200r/min when extraction；
Drying two: the pretreatment object obtained after filtering is placed in drying unit and carries out drying and processing removal extractant, drying temperature
Degree is 50-80 DEG C, drying time 1-3h；
High temperature cabonization: the pretreatment object of drying carries out high temperature cabonization processing under protective atmosphere, and carburizing temperature is 300-500 DEG C,
The high temperature cabonization time is 1-5h.
2. a kind of method for preparing high surface area activated carbon using waste and old honeycomb according to claim 1, which is characterized in that
Further include crushing and screening: the substance obtained after high temperature cabonization being crushed, is then sieved with 100 mesh sieve, activated carbon product is obtained,
Specific surface area is 2000 m2/g。
3. a kind of method for preparing high surface area activated carbon using waste and old honeycomb according to claim 1, it is characterised in that:
Weight ratio toward waste and old honeycomb and activator after pre- carbonization is 1:1.5-5.
4. a kind of method for preparing high surface area activated carbon using waste and old honeycomb according to claim 1, it is characterised in that:
Activator is carbon tetrachloride.
5. a kind of method for preparing high surface area activated carbon using waste and old honeycomb according to claim 1, it is characterised in that:
Extractant is methylene chloride.
6. a kind of method for preparing high surface area activated carbon using waste and old honeycomb according to claim 1, it is characterised in that:
Protective atmosphere is high pure nitrogen or argon gas.
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Citations (6)
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| KR20080085605A (en) * | 2007-03-20 | 2008-09-24 | 전남대학교산학협력단 | Activated carbon with ultra-high specific surface area from corn and production method of thereof |
| US9493356B1 (en) * | 2015-07-17 | 2016-11-15 | The United States Of America As Represented By The Secretary Of The Navy | Impregnation of macrocycle organics to activated carbon |
| CN106744787A (en) * | 2016-11-15 | 2017-05-31 | 安徽安达新能源材料有限公司 | Cellular porous hard carbon lithium ion battery negative material and preparation method thereof and lithium ion battery |
| CN107195475A (en) * | 2017-07-28 | 2017-09-22 | 扬州大学 | A kind of preparation method and applications of N, S and P codope porous carbon materials |
| CN108383099A (en) * | 2018-02-01 | 2018-08-10 | 电子科技大学 | A method of preparing anode material of lithium-ion battery using honeycomb |
| CN108745288A (en) * | 2018-06-23 | 2018-11-06 | 铜仁学院 | A kind of magnetism oil tea shell biomass carbon and preparation method thereof |
-
2019
- 2019-01-28 CN CN201910081825.3A patent/CN109734087A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080085605A (en) * | 2007-03-20 | 2008-09-24 | 전남대학교산학협력단 | Activated carbon with ultra-high specific surface area from corn and production method of thereof |
| US9493356B1 (en) * | 2015-07-17 | 2016-11-15 | The United States Of America As Represented By The Secretary Of The Navy | Impregnation of macrocycle organics to activated carbon |
| CN106744787A (en) * | 2016-11-15 | 2017-05-31 | 安徽安达新能源材料有限公司 | Cellular porous hard carbon lithium ion battery negative material and preparation method thereof and lithium ion battery |
| CN107195475A (en) * | 2017-07-28 | 2017-09-22 | 扬州大学 | A kind of preparation method and applications of N, S and P codope porous carbon materials |
| CN108383099A (en) * | 2018-02-01 | 2018-08-10 | 电子科技大学 | A method of preparing anode material of lithium-ion battery using honeycomb |
| CN108745288A (en) * | 2018-06-23 | 2018-11-06 | 铜仁学院 | A kind of magnetism oil tea shell biomass carbon and preparation method thereof |
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