CN106744949A - A kind of method for preparing activated carbon as raw material with sesame stalk - Google Patents
A kind of method for preparing activated carbon as raw material with sesame stalk Download PDFInfo
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- CN106744949A CN106744949A CN201710101726.8A CN201710101726A CN106744949A CN 106744949 A CN106744949 A CN 106744949A CN 201710101726 A CN201710101726 A CN 201710101726A CN 106744949 A CN106744949 A CN 106744949A
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- activated carbon
- sesame stalk
- carbonization
- sesame
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/11—Powder tap density
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Abstract
The present invention relates to the preparation field of activated carbon, more particularly to a kind of method for preparing activated carbon as raw material with sesame stalk, sesame stalk obtains activated carbon after washing, dry, broken, dipping, drying, carbonization-activation, pickling, washing most through drying and grinding.The present invention is protruded using to biomass pyrolytic effect, cheap, environmentally friendly NaOH makees activator, is overcoming conventional activation agent ZnCl2、H3PO4While environmental pollution, it is possible to decrease the production cost of activated carbon；The activated carbon for obtaining in addition is while can provide high absorption property, and its bulk density is high, better than the bulk density that activated carbon is prepared in the production of traditional stalk.
Description
Technical field
The present invention relates to the preparation field of activated carbon, more particularly to a kind of side for preparing activated carbon as raw material with sesame stalk
Method.
Background technology
In recent years, as the environmental problem that solid waste is triggered increasingly is highlighted, China increasingly payes attention to solid waste
Management, it is main syllabus target control measures to take with minimizing, resource.China is one of agriculture country maximum in the world,
Huge biomass castoff is produced every year, and the biomass castoff of enormous amount on the one hand can be used as the replacement of traditional energy
Product, while also can be used as the various materials of production, such as raw material of adsorbent and chemicals.The conventional transformation technology of biomass includes
Heat treatment and biological treatment, pyrolysis is considered as the effective way of biomass as resources.Pyrolysis is referred in vacuum or indifferent gas
In atmosphere there are a series of continuous cracking reactions, generation solid carbon, liquids and gases product in organic matter.The yield of these components depends on
In raw material and pyrolytic process condition, generally in low pyrolysis temperature and slow heating rate be conducive to the generation of fixed carbon.
Activated carbon is a kind of extremely important porous material, is widely used in many industrial circles, such as energy storage, water quality
The fields such as purification, petrochemical industry, bioengineering and environmental protection.In addition, activated carbon can reduce the influence of climate change and increase
The yield of staple crops, therefore be also widely used in agriculture field.But its production cost but remains high, therefore obtain
The cheap, high-quality raw material of wide material sources is taken to be particularly important.Disclose a kind of beautiful with peat compounding in CN104843700A
Rice stalk is powdered active carbon prepared by raw material, and its methylene blue adsorption value is only up to 280mg/g；In CN101708845A
It is the method for waste activated carbon with rice husk, stalk to disclose a kind of, need to be processed with phosphoric acid, and methylene blue adsorption number rate is for only
It is 135mg/g.
Sesame is one of main industrial crops of China, and the sesame stalk for therefore producing every year is up to 0.36 hundred million tons.Sesame
The conventional process mode of numb stalk is open incineration, and it is also the waste to resource that this not only results in serious atmosphere pollution.Thing
In reality, sesame stalk has carbon content higher, low ash content and appropriate hardness, is to produce the preferable presoma of activated carbon, but mesh
It is preceding to be reported there is not yet preparing the open of activated carbon using sesame stalk both at home and abroad.The production technology of activated carbon is broadly divided into physics
Activation method and chemical activation method.Physical activation method is the preparation that activated carbon is completed by the step of carbonization-activation two.Chemical activation method is
The step of carbonization-activation one is completed, and the temperature of charing is also low compared with physical activation method, moreover it is possible to improve the hole of activated carbon and improve
The yield of activated carbon.Generally speaking, the activated carbon for being prepared using chemical activation is relatively better than physical activation method, with more business valency
Value.
In addition to excellent absorption property, every physical and chemical index of activated carbon directly affects the performance of activated carbon
With follow-up transport and application, the strainability of usual bulk density more high activity charcoal is better and is more easy to store, transports
And recovery, do not easily cause dust pollution.But the activated carbon bulk density that usual straw is prepared is smaller, such as
A kind of kenaf stalk activated charcoal announced in CN101181993A and preparation method thereof bulk density 0.25-0.30g/cm3。
So it is that sesame stalk prepares methylene blue adsorption value high as raw material with biomass straw that exploitation is a kind of, and pile up close
The big activated carbon of degree has great importance.
The content of the invention
The present invention is on the high side for existing activated carbon product, and the present situation of shortage of raw materials, conventional plant stalk is prepared
The shortcoming that activated carbon bulk density is smaller and methylene blue adsorption value is low；It is that raw material preparation is active with sesame stalk to provide a kind of
The method of charcoal, so as to mitigate the influence that crop straw burning aggravates haze, expands the outlet that stalk is turned waste into wealth, and realizes resources circulation profit
With the development of promotion low-carbon economy.
The present invention is achieved through the following technical solutions above-mentioned purpose, and one kind prepares activated carbon by raw material of sesame stalk
Method, comprise the following steps：
1) sesame stalk washes natural air drying after 2 removal dusts, is dried 4 hours at 105 DEG C；
2) sesame stalk after drying is crushed to 60-80 mesh and obtains sesame stalk particle；
3) by step 2) sesame stalk particle and NaOH (purity 99%) after treatment is by weight being 1:0.5~4
Mixing, adds deionized water to be stirred, and is subsequently placed in water bath shaker to shake at room temperature 60 minutes and is allowed to well mixed,
Solution is filtered after standing 24h；By the sesame stalk particle of dipping at 100 DEG C to being completely dried；
4) by step 3) the sesame stalk particle after treatment carries out carbonization-activation, then carries out cooling down obtaining sample before pickling；
400~900 DEG C of the carbonization-activation temperature, 30~180 minutes carbonization-activation time；
5) aqueous hydrochloric acid solution that sample concentration before pickling is 10wt% is boiled 30 minutes at 60 DEG C, then uses distilled water
Fully rinsing is 6.5~7.5 to filtrate pH, and 120 DEG C of drying after rinsing are put into drier after drying and are cooled down, Ran Houyan
It is milled to 200 mesh and obtains final product activated carbon.
A kind of method for preparing activated carbon as raw material with sesame stalk of the present invention, its further technical scheme can be with
For step 3) in sesame stalk particle and NaOH weight ratio be 1:1~3；
A kind of method for preparing activated carbon as raw material with sesame stalk of the present invention, its further technical scheme can be with
For step 4) 60~140 minutes carbonization-activation time；
A kind of method for preparing activated carbon as raw material with sesame stalk of the present invention, its further technical scheme can be with
For step 4) 600~800 DEG C of carbonization-activation temperature.
A kind of method for preparing activated carbon as raw material with sesame stalk of the present invention, its further technical scheme can be with
For step 5) in 10wt% aqueous hydrochloric acid solution and pickling before the weight ratio of sample be 8~10:3.
Compared with prior art, the invention has the advantages that：
1) present invention make use of the biomass castoff sesame straw produced in agricultural economy crop sesame harvesting process first
Stalk, raw material is easy to get inexpensively, can make up a limited number of defects of shell biolobic material, reduces the production cost of activated carbon；
2) protruded using to biomass pyrolytic effect, cheap, environmentally friendly NaOH makees activator, is overcoming tradition
Activator ZnCl2、H3PO4While environmental pollution, it is possible to decrease the production cost of activated carbon；
3) this method equipment investment is few, simple to operate, and energy consumption is low, and the activated carbon of acquisition can provide the same of high absorption property
When, its bulk density is high, better than the bulk density that activated carbon is prepared in the production of traditional stalk.
Brief description of the drawings
Fig. 1 is the process chart for preparing sesame stalk activated carbon.
Specific embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to specific embodiment, to this
Invention is further described.It should be understood that these descriptions are merely illustrative, and it is not intended to limit the scope of the present invention.
Embodiment 1
The Anhui clear water of the sesame stalk containing Mountain area will be taken from and rinse 2 removal dusts, air-dried under field conditions (factors)；Wind
Sesame stalk after dry is dried 4 hours at 105 DEG C, and the sesame stalk after drying is crushed to 60-80 mesh；Take 10g sesame stalks
Particle is mixed with NaOH particles by 1 ︰ 2, plus 100ml deionized waters stir, and mixture is placed in water bath shaker and in room
The lower shake of temperature is allowed to well mixed in 60 minutes, and filter solution after standing 24h dries until completely dry impregnated sample at 100 DEG C
It is dry；Biased sample is placed in electric tube furnace with 5 DEG C of min-1Heating rate rise to 640 DEG C and carry out carbonization-activation, flow rate of nitrogen is
30mLmin-1, it is 87 minutes to hold time；Through cooling, boiled at 60 DEG C with the hydrochloric acid of concentration 10% 30 minutes (concentration 10%
Hydrochloric acid weight is 10 with example weight ratio:3) it is 6.5~7.5, then fully to be rinsed to filtrate pH with distilled water, in 120 DEG C of bakings
Dry, cooling is ground to 200 mesh and obtains final product activated carbon.The activated carbon methylene blue adsorption value prepared is 224mg/g, bulk density
It is 0.46g/cm3。
Embodiment 2
The Anhui clear water of the sesame stalk containing Mountain area will be taken from and rinse 2 removal dusts, air-dried under field conditions (factors)；Wind
Sesame stalk after dry is dried 4 hours at 105 DEG C, and the sesame stalk after drying is crushed to 60-80 mesh or so；Take 10g sesames
Stalk particle is mixed with NaOH particles by 1 ︰ 3, plus 100ml deionized waters stir, and mixture is placed in water bath shaker simultaneously
Shake at room temperature is allowed to well mixed in 60 minutes, and filter solution after standing 24h dries until complete impregnated sample at 100 DEG C
White drying；Biased sample is placed in electric tube furnace with 5 DEG C of min-1Heating rate rise to 800 DEG C and carry out carbonization-activation, nitrogen stream
Rate is 30mLmin-1, it is 120 minutes to hold time；30 minutes (concentration is boiled at 60 DEG C through cooling, with the hydrochloric acid of concentration 10%
10% hydrochloric acid weight is 8 with example weight ratio:3) it is 6.5~7.5, then fully to be rinsed to filtrate pH with distilled water, 120
DEG C drying, cooling, grinding obtain activated carbon.The activated carbon methylene blue adsorption value prepared is 321mg/g, and bulk density is
0.52g/cm3。
Embodiment 3
The Anhui clear water of the sesame stalk containing Mountain area will be taken from and rinse 2 removal dusts, air-dried under field conditions (factors)；Wind
Sesame stalk after dry is dried 4 hours at 105 DEG C, and the sesame stalk after drying is crushed to 60-80 mesh or so；Take 10g sesames
Stalk particle is mixed with NaOH particles by 1 ︰ 2.5, plus 100ml deionized waters stir, and mixture is placed in water bath shaker
And at room temperature shake be allowed to well mixed within 60 minutes, stand 24h after filter solution by impregnated sample at 100 DEG C dry until
It is completely dried；Biased sample is placed in electric tube furnace with 5 DEG C of min-1Heating rate rise to 800 DEG C and carry out carbonization-activation, nitrogen
Flow rate is 30mLmin-1, it is 120 minutes to hold time；30 minutes (concentration is boiled at 60 DEG C through cooling, with the hydrochloric acid of concentration 10%
10% hydrochloric acid weight is 10 with example weight ratio:3) it is 6.5~7.5, then fully to be rinsed to filtrate pH with distilled water,
120 DEG C of drying, cooling, grinding obtains activated carbon.The activated carbon methylene blue adsorption value prepared is 288mg/g, bulk density
It is 0.43g/cm3。
Although embodiments of the present invention are described in detail, it should be understood that, without departing from of the invention
In the case of spirit and scope, embodiments of the present invention can be made with various changes, replace and change.
Claims (6)
1. a kind of method for preparing activated carbon as raw material with sesame stalk, comprises the following steps：
1) sesame stalk washes natural air drying after 2 removal dusts, is dried 4 hours at 105 DEG C；
2) sesame stalk after drying is crushed to 60-80 mesh and obtains sesame stalk particle；
3) by step 2) sesame stalk particle and NaOH after treatment is by weight being 1:0.5~4 mixing, adds deionization
Water is stirred, and is subsequently placed in water bath shaker to shake at room temperature 60 minutes and is allowed to well mixed, stand filter after 24h it is molten
Liquid；By the sesame stalk particle of dipping at 100 DEG C to being completely dried；
4) by step 3) the sesame stalk particle after treatment carries out carbonization-activation, then carries out cooling down obtaining sample before pickling；It is described
400~900 DEG C of carbonization-activation temperature, 30~180 minutes carbonization-activation time；
5) aqueous hydrochloric acid solution that sample concentration before pickling is 10wt% is boiled 30 minutes at 60 DEG C, it is then abundant with distilled water
Rinsing is 6.5~7.5 to filtrate pH, and 120 DEG C of drying after rinsing are put into drier after drying and are cooled down, and are then ground to
200 mesh obtain final product activated carbon.
2. method according to claim 1, it is characterised in that：Step 3) in sesame stalk particle and NaOH weight ratio
It is 1:1~3.
3. method according to claim 1, it is characterised in that：Step 4) 60~140 minutes carbonization-activation time.
4. method according to claim 1, it is characterised in that：Step 4) 600~800 DEG C of carbonization-activation temperature.
5. method according to claim 1, it is characterised in that：Step 5) in 10wt% aqueous hydrochloric acid solution and pickling before sample
The weight ratio of product is 8~10:3.
6. method according to claim 1, it is characterised in that：The activated carbon bulk density prepared is 0.43-0.52g/
cm3。
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| CN201710101726.8A CN106744949A (en) | 2017-02-24 | 2017-02-24 | A kind of method for preparing activated carbon as raw material with sesame stalk |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107873919A (en) * | 2017-12-25 | 2018-04-06 | 合肥市绿之林农业开发有限公司 | A kind of sunset abelmoschus flower teabag drink of low impurity |
| CN109231202A (en) * | 2018-12-05 | 2019-01-18 | 重庆文理学院 | A kind of ginger straw base nanometer porous carbon and preparation method thereof |
| CN112547012A (en) * | 2020-11-27 | 2021-03-26 | 郑州大学 | For VOCsPreparation method of adsorbed biomass-based activated carbon |
| CN113832561A (en) * | 2021-10-26 | 2021-12-24 | 四川祥和鸟服饰有限公司 | Preparation method of pure-spinning regenerated cellulose fiber raw sliver |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1927708A (en) * | 2006-09-15 | 2007-03-14 | 江苏工业学院 | Method of preparing high specific surface area activated carbon with rich mesoporous |
-
2017
- 2017-02-24 CN CN201710101726.8A patent/CN106744949A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1927708A (en) * | 2006-09-15 | 2007-03-14 | 江苏工业学院 | Method of preparing high specific surface area activated carbon with rich mesoporous |
Non-Patent Citations (1)
| Title |
|---|
| 呼友明: "块状活性碳材料的制备及其吸附性能的研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107873919A (en) * | 2017-12-25 | 2018-04-06 | 合肥市绿之林农业开发有限公司 | A kind of sunset abelmoschus flower teabag drink of low impurity |
| CN109231202A (en) * | 2018-12-05 | 2019-01-18 | 重庆文理学院 | A kind of ginger straw base nanometer porous carbon and preparation method thereof |
| CN112547012A (en) * | 2020-11-27 | 2021-03-26 | 郑州大学 | For VOCsPreparation method of adsorbed biomass-based activated carbon |
| CN113832561A (en) * | 2021-10-26 | 2021-12-24 | 四川祥和鸟服饰有限公司 | Preparation method of pure-spinning regenerated cellulose fiber raw sliver |
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