CN103318885A - Method for preparing activated carbon from pomelo peels - Google Patents
Method for preparing activated carbon from pomelo peels Download PDFInfo
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- CN103318885A CN103318885A CN201310268160XA CN201310268160A CN103318885A CN 103318885 A CN103318885 A CN 103318885A CN 201310268160X A CN201310268160X A CN 201310268160XA CN 201310268160 A CN201310268160 A CN 201310268160A CN 103318885 A CN103318885 A CN 103318885A
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Abstract
The invention relates to a method for preparing activated carbon from pomelo peels, which comprises the following steps: cutting air-dried pomelo peels into small segments; soaking with a KOH/NaOH mixed solution, then taking out, and airing until no water drips; heating in a closed container, and carbonizing; cooling to room temperature, then soaking with an acid solution, and performing acid washing; taking out, draining, rinsing with deionized water, and drying; and cooling to room temperature, and pulverizing to obtain the activated carbon. According to the method for preparing activated carbon, waste of agricultural products is utilized, the added value of the agricultural products is increased, and the environment protection pressure is effectively reduced; and the method is simple in process, short in flow and beneficial to popularization.
Description
Technical field
The present invention relates to a kind of method of utilizing pomelo peel to prepare gac.
Background technology
Shaddock is a kind of very important southern fruit, originates in the southern areas such as China Fujian, Jiangxi, Guangdong, Guangxi.Shaddock delicate fragrance, sour-sweet, Liang Run, nutritious, pharmaceutical use is very high, is that people like one of famous and precious fruit of food, also is the fruit of the medical circle tool dietotherapy benefit of generally acknowledging.Pomelo peel is just lost after each edible shaddock, or is dried, burns as the part of shaddock, very easily causes again environmental pollution.This has not only had a strong impact on ecotope, has increased carbon emission, and wasted can be for the renewable resource of utilizing.On the other hand; because gac is the carbonaceous material that has flourishing pore texture, huge surface-area and outstanding absorption property are arranged, be widely used in the many-side in national defence, chemical industry, oil, ocean, food, medicine, light industry, nuclear industry, urban construction, environment protection and the people's life.Along with people to the environmental problem pay attention to day by day, the demand of gac presents year by year the trend that increases.Therefore, utilize pomelo peel to prepare gac important realistic meaning is arranged.
Consider from economic cause, alkali-metal oxyhydroxide (mainly being lithium, sodium, potassium) is a kind of good activator, is widely adopted in producing the gac process.For the more effective pomelo peel that utilizes, environmental contamination reduction, the added value of raising agricultural-food, the application propose to utilize pomelo peel as raw material, utilize the fuzzy mathematics stratification to seek to control the processing parameter of preparation gac, prepare the method for gac with the single stage method carbonization.
Summary of the invention
The technical problem to be solved in the present invention is to propose a kind of method of utilizing pomelo peel to prepare gac, with environmental contamination reduction, improves the added value of agricultural-food.
The present invention solves the problems of the technologies described above with following technical scheme:
Step of preparation process is:
1, get oneself through natural wind dry doubling drying the raw material pomelo peel, be cut into the segment that length and width is 2-5cm; With KOH and the NaOH mixed liquid dipping of equal mass, mass ratio is shaddock Pi ︰ mixed solution=1 ︰ 4-10; 40 ℃-60 ℃ of soaking temperatures, the time is 40-50 hour;
2, pick up and dry without after dripping, with the heat-up rate of 3-6 ℃/min, be heated to 800-1200 ℃ in encloses container, make its charing, carbonization time is controlled at 4-8h;
3, behind the cool to room temperature, be hydrochloric acid soln immersion, the pickling 4-6h of 20-25% with volumetric ratio;
4, after taking-up drained, making its pH value with rinsed with deionized water again was 7;
5, with the material rebake 3-6h that obtains, temperature is controlled to be 110-135 ℃;
6, be cooled to room temperature, obtain granular active carbon.
After the raw material pomelo peel natural wind dry doubling drying, require to reach following quality than index: moisture≤12%; Volatility≤70%; Fixed carbon 〉=15%; Ash content≤3%;
Within the time of KOH and NaOH mixed liquid dipping pomelo peel, each stirs once when 12h and 36h, 30-60r/min, each 4-6 minute.
The active carbon finished products of making, iodine sorption value reach the standard-required of GB/T12496.8-1999, and methylene blue adsorption value reaches the technical requirements of GB/T12491.10-1999.
Prepare gac with method of the present invention, utilized the waste of agricultural-food, improved the added value of agricultural-food, effectively reduce the pressure of protection of the environment, and technique is simpler, flow process is short, is beneficial to popularization.
Embodiment
The present invention proposes to utilize pomelo peel to be raw material, utilizes Fuzzy Hierarchy Method to control and produces the activated carbon process parameter, produces gac with the single stage method carbonization, and the gac of making meets national technical standard.
Embodiment 1:
Embodiment 2:
Embodiment 3:
The leading indicator of the activated carbon product of embodiment 2 is:
| CTC adsorptive value (%) | 100-140% |
| Benzene absorption (%) | 45-65% |
| Iodine sorption value (mg/g) | 1100-1300 |
| Specific surface area (m2/g) | 1400～2400 |
| Apparent density (g/ml) | 0.33～0.38 |
| Point of ignition (℃) | 400～450 |
| Intensity (%) | 95-99.9% |
| Ash content (%) | 3-6 |
| Moisture is less than (%) | 5 |
| Granularity (mesh) | 1.2,3,4mm |
Claims (4)
1. method of utilizing pomelo peel to prepare gac is characterized in that processing step is:
Get oneself through natural wind dry doubling drying the raw material pomelo peel, be cut into the segment of length and width 2-5cm; With KOH and the NaOH mixed liquid dipping of equal mass, mass ratio is shaddock Pi ︰ mixed solution=1 ︰ 4-10; 40 ℃-60 ℃ of soaking temperatures, the time is 40-50 hour;
⑵ pick up and dry without after dripping, and with the heat-up rate of 3-6 ℃/min, is heated to 800-1200 ℃ in encloses container, makes its charing, and carbonization time is controlled at 4-8h;
⑶ behind the cool to room temperature, be hydrochloric acid soln immersion, the pickling 4-6h of 20-25% with volumetric ratio;
⑷ after took out and drain, making its pH value with rinsed with deionized water again was 7;
⑸ with the material rebake 3-6h that obtains, and temperature is controlled to be 110-135 ℃;
⑹ be cooled to room temperature, obtains granular active carbon.
2. the method for utilizing pomelo peel to prepare gac as claimed in claim 1, it is characterized in that raw material pomelo peel natural wind dry doubling drying after, require to reach following quality than index: moisture≤12%; Volatility≤70%; Fixed carbon 〉=15%; Ash content≤3%.
3. the method for utilizing pomelo peel to prepare gac as claimed in claim 1 is characterized in that within the time of KOH and NaOH mixed liquid dipping pomelo peel, and each stirs once when 12h and 36h, 30-60r/min, each 4-5 minute.
4. the method for utilizing pomelo peel to prepare gac as claimed in claim 1 is characterized in that the active carbon finished products made, and iodine sorption value reaches the standard-required of GB/T12496.8-1999, and methylene blue adsorption value reaches the technical requirements of GB/T12491.10-1999.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268160XA CN103318885A (en) | 2013-06-28 | 2013-06-28 | Method for preparing activated carbon from pomelo peels |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310268160XA CN103318885A (en) | 2013-06-28 | 2013-06-28 | Method for preparing activated carbon from pomelo peels |
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| CN103318885A true CN103318885A (en) | 2013-09-25 |
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| CN201310268160XA Pending CN103318885A (en) | 2013-06-28 | 2013-06-28 | Method for preparing activated carbon from pomelo peels |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105664928A (en) * | 2016-03-21 | 2016-06-15 | 张晓菁 | Preparation method of platinum-loading citrus grandis peel activated carbon catalyst for room-temperature degradation of formaldehyde in air |
| CN105692588A (en) * | 2016-01-29 | 2016-06-22 | 南昌大学 | Preparation method of carbon aerogel for air filtration |
| CN106512937A (en) * | 2016-11-14 | 2017-03-22 | 天津工业大学 | Preparation method of adsorbent for efficiently removing methylene blue in wastewater |
| CN107393720A (en) * | 2017-05-26 | 2017-11-24 | 大连理工大学 | Pomelo peel derives porous carbon and is used for preparation method of the DSSC to electrode |
| CN107879342A (en) * | 2017-11-21 | 2018-04-06 | 常州亚环环保科技有限公司 | A kind of preparation method of high absorbent-type porous activated carbon |
| CN108483443A (en) * | 2018-03-30 | 2018-09-04 | 江苏新亿源环保科技有限公司 | A kind of preparation method of high absorption multiporous biological matter based foam carbon |
| CN109336108A (en) * | 2018-11-30 | 2019-02-15 | 刘岳定 | A kind of efficient water purification active carbon and preparation method thereof |
| CN110203931A (en) * | 2019-07-01 | 2019-09-06 | 湖南城市学院 | A method of high pressure water system electrode material for super capacitor is prepared using pomelo peel |
| CN110642249A (en) * | 2019-10-21 | 2020-01-03 | 浙江农林大学 | Preparation method and application of carbon-based electrode material |
| CN111232975A (en) * | 2020-02-17 | 2020-06-05 | 西南大学 | Activated carbon material for super capacitor and preparation method and application thereof |
| CN114715889A (en) * | 2022-04-26 | 2022-07-08 | 南京信息工程大学 | Preparation method for preparing carbon material from shaddock peel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040024074A1 (en) * | 2000-08-09 | 2004-02-05 | Tennison Stephen Robert | Porous carbons |
| CN103121677A (en) * | 2013-03-06 | 2013-05-29 | 广西大学 | Method for preparing activated carbon by using banana tree trunk |
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2013
- 2013-06-28 CN CN201310268160XA patent/CN103318885A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040024074A1 (en) * | 2000-08-09 | 2004-02-05 | Tennison Stephen Robert | Porous carbons |
| CN103121677A (en) * | 2013-03-06 | 2013-05-29 | 广西大学 | Method for preparing activated carbon by using banana tree trunk |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692588A (en) * | 2016-01-29 | 2016-06-22 | 南昌大学 | Preparation method of carbon aerogel for air filtration |
| CN105664928B (en) * | 2016-03-21 | 2016-12-28 | 张晓菁 | A kind of preparation method of the pomelo shell activated-carbon catalyst of the Supported Pt Nanoparticles of room temperature degraded formaldehyde in air |
| CN105664928A (en) * | 2016-03-21 | 2016-06-15 | 张晓菁 | Preparation method of platinum-loading citrus grandis peel activated carbon catalyst for room-temperature degradation of formaldehyde in air |
| CN106512937A (en) * | 2016-11-14 | 2017-03-22 | 天津工业大学 | Preparation method of adsorbent for efficiently removing methylene blue in wastewater |
| CN107393720A (en) * | 2017-05-26 | 2017-11-24 | 大连理工大学 | Pomelo peel derives porous carbon and is used for preparation method of the DSSC to electrode |
| CN107879342B (en) * | 2017-11-21 | 2020-12-18 | 宁夏浦士达环保科技有限公司 | Preparation method of high-adsorption type porous activated carbon |
| CN107879342A (en) * | 2017-11-21 | 2018-04-06 | 常州亚环环保科技有限公司 | A kind of preparation method of high absorbent-type porous activated carbon |
| CN108483443A (en) * | 2018-03-30 | 2018-09-04 | 江苏新亿源环保科技有限公司 | A kind of preparation method of high absorption multiporous biological matter based foam carbon |
| CN109336108A (en) * | 2018-11-30 | 2019-02-15 | 刘岳定 | A kind of efficient water purification active carbon and preparation method thereof |
| CN110203931A (en) * | 2019-07-01 | 2019-09-06 | 湖南城市学院 | A method of high pressure water system electrode material for super capacitor is prepared using pomelo peel |
| CN110642249A (en) * | 2019-10-21 | 2020-01-03 | 浙江农林大学 | Preparation method and application of carbon-based electrode material |
| CN111232975A (en) * | 2020-02-17 | 2020-06-05 | 西南大学 | Activated carbon material for super capacitor and preparation method and application thereof |
| CN111232975B (en) * | 2020-02-17 | 2021-01-08 | 西南大学 | Activated carbon material for super capacitor and preparation method and application thereof |
| CN114715889A (en) * | 2022-04-26 | 2022-07-08 | 南京信息工程大学 | Preparation method for preparing carbon material from shaddock peel |
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Application publication date: 20130925 |