CN104556027A - Method for preparing litchi seed activated carbon - Google Patents
Method for preparing litchi seed activated carbon Download PDFInfo
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- CN104556027A CN104556027A CN201410752464.8A CN201410752464A CN104556027A CN 104556027 A CN104556027 A CN 104556027A CN 201410752464 A CN201410752464 A CN 201410752464A CN 104556027 A CN104556027 A CN 104556027A
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- semen litchi
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Abstract
The invention relates to a method for preparing litchi seed activated carbon and belongs to the technical field of processing of agricultural and sideline products. The method comprises the steps of pretreatment, carbonizing, pulverizing, screening, water vapor activation, after-treatment and the like. According to the method, the water vapor activation method is utilized to prepare litchi seed activated carbon, the method disclosed by the invention has the advantages of simple and clean preparation technology and low cost, and the prepared litchi activated carbon is uniform in texture, developed in micropores and particularly suitable for adsorbing dust particles and some harmful gases in air, and has a good purification effect.
Description
Technical field
The present invention relates to a kind of preparation method of active carbon, be specifically related to a kind of preparation method of semen litchi active carbon, belong to agricultural byproducts processing technical field.
Background technology
Lichee is Sapindaceae, lichee belongs to aiphyllium, it is tropical, that subtropical zone is important fruit tree, the cultivation history of more than 2000 year is had in China, cultivated area and output account for more than 80% of the world, be the maximum fruit tree of South China's cultivated area, be mainly distributed in the ground such as Guangdong, Guangxi, Fujian, Hainan and Taiwan.Because it is nutritious, the sweet meat of taste is tender, and quality is extremely excellent and be described as " treasure of China ".Lichee is also containing anthocyan, proanthocyanidins, volatile ingredient, aliphatic compound and multiple nutritional components, and main pharmacodynamics has hypoglycemic, effect for reducing blood fat, has Development volue very much.In the suitability for industrialized production of lichee, a large amount of semen litchi does not obtain effective development and utilization as byproduct, is usually used as discarded object and abandons, and causes the waste of resource.
Active carbon is also known as activated carbon black, and its hole is many, and hole is large, and in crystal arrangement, have suction-operated, sterilizing and purifying function is particularly remarkable.The primary raw material of active carbon can be almost all organic materials being rich in carbon, comprising some fruit stones.CN201110246973.X discloses a kind of preparation method of the walnut shell active carbon adsorbent for purifying low-concentration phosphine, by fragmentation, washing and dried walnut shell raw material be placed in tube furnace under uniform temperature nitrogen protection charing 1h obtain carbonized material, by carbonized material and activator potassium hydroxide by a certain percentage solid admittedly mixing to be placed in tube furnace nitrogen protection under uniform temperature and to activate 1h, walnut shell activation sample is through salt acid elution, hot distilled water rinsing is to neutral and namely obtain walnut shell active carbon after drying, walnut shell active carbon is carried out Metal Supported modification, metal active constituent is copper, zinc and lanthanum, flood through ultrasonic wave, dry and roasting obtains walnut shell active carbon adsorbent, CN201210032201.0 discloses a kind of method of preparing powdered activated carbon by using longan seeds, take longan seed as raw material, adopts certain activator, can prepare the flourishing active carbon of a kind of rich micropore.First to longan seed carry out air-dry, broken, then add certain activator dipping, suction filtration, carbonization-activation, finally by recovery, rinsing, oven dry etc., obtained active carbon finished products; CN201110435994.6 discloses a kind of method that chemical method prepares peach-pit active carbon: the present invention relates to after dry for peach-pit also crushing and screening, by chemical solution impregnation process after 10 ~ 30 hours, put into activation furnace, under anaerobic condition, be warming up to 500 ~ 900 DEG C carry out pyrolysis, omnidistance 1 ~ 4 hour, heating rate was 5 ~ 20 DEG C/min; Namely obtaining active carbon after the rinsing of activation products distilled water, drying also has some research and utilization semen litchis to prepare active carbon.CN201410057847.3 discloses powdered biomass active carbon prepared by a kind of semen litchi and preparation method thereof, and the specific area (SBET) of prepared active carbon is 1530 ~ 2450m
2/ g, micropore specific area >97%, pore volume (P/P0=0.95) is 0.62 ~ 1.16cm
3/ g, micro pore volume rate >95%, granularity is 2300 ~ 4500 orders, and iodine number is 845 ~ 1545mg/g, and methylene blue adsorption value is 10.12 ~ 21.3 mL/0.1g, ash content≤0.15%, and resistance is 0.3 ~ 0.6 Ω.What this patent provided utilizes semen litchi to prepare active carbon, is especially suitable for use as the electrode material of green power supply battery, electrochemical capacitor, and the technique provided is more complicated, and as environment purification, effect is short of.
Summary of the invention
The present invention is directed to prior art Problems existing, a kind of preparation method of semen litchi active carbon is provided, the method utilizes vapor activation to prepare semen litchi active carbon, there is the advantage that preparation technology is simple, clean, cost is low, the semen litchi active carbon prepared is homogeneous, micropore is flourishing, be specially adapted to the grit in absorbed air and some pernicious gases, good purification.
In order to solve the problem, the technical solution adopted in the present invention is:
A preparation method for semen litchi active carbon, comprises the following steps:
(1) pretreatment: the impurity removing semen litchi surface;
(2) carbonize: the semen litchi of step (1) at 450 ~ 600 DEG C of charing 70 ~ 150 min;
(3) pulverize, sieve: mechanical crushing, cross 60 ~ 100 mesh sieves;
(4) steam activation: activation temperature is 900 ~ 960 DEG C, steam consumption is 1.5 ~ 3 times of activated material consumption, and soak time is 100 ~ 150 min;
(5) post processing: product drying, grinds and obtains semen litchi active carbon;
Described step (1), the water content of semen litchi is 3% ~ 8%; Described step (5), baking temperature is 50 ~ 70 DEG C, and drying time is 2 ~ 4 h.
The present invention relative to the beneficial effect of prior art is:
(1) preparation method of semen litchi active carbon provided by the invention, vapor activation is utilized to prepare semen litchi active carbon, there is the advantage that preparation technology is simple, clean, cost is low, be suitable for industrially large-scale application, the semen litchi active carbon prepared is homogeneous, micropore is flourishing, be specially adapted to the grit in absorbed air and some pernicious gases, good purification.
(2) semen litchi active carbon provided by the invention, performance parameter is as follows: iodine sorption value is 1150 ~ 1200 mg/g; Methylene blue adsorption value is 175 ~ 190 mL/g; Product yield is 45% ~ 55%, and the toxic gases such as PARA FORMALDEHYDE PRILLS(91,95), benzene, ammonia, chloroform all have good suction-operated.
(3) semen litchi of the present invention is a kind of wastes of crops not yet effectively utilized at present, source is sufficient, it is utilized to prepare active carbon, not only contribute to solving the problem of environmental pollution brought when burning or abandon, and greatly reduce the manufacturing cost of active carbon, achieve the comprehensive utilization of resource.
Detailed description of the invention
Be described in further details the present invention below by embodiment, these embodiments are only used for the present invention is described, do not limit the scope of the invention.
embodiment 1
A preparation method for semen litchi active carbon, comprises the following steps:
(1) pretreatment: the impurity removing semen litchi surface
(2) carbonize: the semen litchi of step (1) at 450 DEG C of charing 70 min;
(3) pulverize, sieve: mechanical crushing, cross 60 mesh sieves;
(4) steam activation: activation temperature is 900 DEG C, steam consumption is 1.5 times of activated material consumption, and soak time is 100 min;
(5) post processing: product drying, grinds and get final product.
embodiment 2
A preparation method for semen litchi active carbon, comprises the following steps:
(1) pretreatment: the impurity removing semen litchi surface
(2) carbonize: the semen litchi of step (1) at 600 DEG C of charing 150 min;
(3) pulverize, sieve: mechanical crushing, cross 100 mesh sieves;
(4) steam activation: activation temperature is 960 DEG C, steam consumption is 3 times of activated material consumption, and soak time is 150 min;
(5) post processing: product drying, grinds and get final product.
embodiment 3
A preparation method for semen litchi active carbon, comprises the following steps:
(1) pretreatment: the impurity removing semen litchi surface
(2) carbonize: the semen litchi of step (1) at 525 DEG C of charing 110 min;
(3) pulverize, sieve: mechanical crushing, cross 80 mesh sieves;
(4) steam activation: activation temperature is 920 DEG C, steam consumption is 2.25 times of activated material consumption, and soak time is 125 min;
(5) post processing: product drying, grinds and get final product.
embodiment 4
A preparation method for semen litchi active carbon, comprises the following steps:
(1) pretreatment: the impurity removing semen litchi surface
(2) carbonize: the semen litchi of step (1) at 500 DEG C of charing 105 min;
(3) pulverize, sieve: mechanical crushing, cross 70 mesh sieves;
(4) steam activation: activation temperature is 910 DEG C, steam consumption is 2 times of activated material consumption, and soak time is 115 min;
(5) post processing: product drying, grinds and get final product.
embodiment 5
A preparation method for semen litchi active carbon, comprises the following steps:
(1) pretreatment: the impurity removing semen litchi surface
(2) carbonize: the semen litchi of step (1) at 550 DEG C of charing 130 min;
(3) pulverize, sieve: mechanical crushing, cross 90 mesh sieves;
(4) steam activation: activation temperature is 950 DEG C, steam consumption is 2.8 times of activated material consumption, and soak time is 130 min;
(5) post processing: product drying, grinds and get final product.
Claims (3)
1. a preparation method for semen litchi active carbon, is characterized in that: comprise the following steps:
(1) pretreatment: the impurity removing semen litchi surface;
(2) carbonize: the semen litchi of step (1) at 450 ~ 600 DEG C of charing 70 ~ 150 min;
(3) pulverize, sieve: mechanical crushing, cross 60 ~ 100 mesh sieves;
(4) steam activation: activation temperature is 900 ~ 960 DEG C, steam consumption is 1.5 ~ 3 times of activated material consumption, and soak time is 100 ~ 150 min;
(5) post processing: product drying, grinds and obtains semen litchi active carbon.
2. the preparation method of a kind of semen litchi active carbon according to claim 1, is characterized in that: the water content of the semen litchi described in step (1) is 3% ~ 8%.
3. the preparation method of a kind of semen litchi active carbon according to claim 1, it is characterized in that: the baking temperature described in step (5) is 50 ~ 70 DEG C, drying time is 2 ~ 4 h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410752464.8A CN104556027A (en) | 2014-12-11 | 2014-12-11 | Method for preparing litchi seed activated carbon |
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| CN201410752464.8A CN104556027A (en) | 2014-12-11 | 2014-12-11 | Method for preparing litchi seed activated carbon |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645409A (en) * | 2016-02-18 | 2016-06-08 | 柳州东侯生物能源科技有限公司 | Method for preparing biomass powdered activated carbon from lichi seeds |
| CN106904615A (en) * | 2017-05-02 | 2017-06-30 | 北京中欧普瑞科技有限公司 | Method for preparation of active carbon and the equipment for preparing activated carbon |
| CN108126662A (en) * | 2018-02-08 | 2018-06-08 | 彭万喜 | A kind of absorber preparation method of microenvironment pollution control |
| CN109911896A (en) * | 2017-12-13 | 2019-06-21 | 贺州学院 | A kind of semen litchi method for preparation of active carbon through phosphoric acid activation |
| CN111318256A (en) * | 2020-03-06 | 2020-06-23 | 浙江农林大学暨阳学院 | Preparation method of walnut shell biomass charcoal and adsorption method of walnut shell biomass charcoal on metal copper ions |
| CN113493203A (en) * | 2021-07-27 | 2021-10-12 | 福建省鑫森炭业股份有限公司 | Preparation method of activated carbon for regeneration treatment of kidney dialysate and activated carbon |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169396A (en) * | 1996-06-26 | 1998-01-07 | 陶敏 | Active carbon made from pentacarpus fruit kernel |
| CN102583369A (en) * | 2012-01-12 | 2012-07-18 | 江西师范大学 | Method for preparing powdered activated carbon from longan seeds |
| CN103803548A (en) * | 2014-02-20 | 2014-05-21 | 江西师范大学 | Biomass powder activated carbon prepared from lychee seeds and preparation method thereof |
| CN103803549A (en) * | 2014-02-20 | 2014-05-21 | 江西师范大学 | Micron-sized granular active carbon prepared from litchi shells and preparation method thereof |
-
2014
- 2014-12-11 CN CN201410752464.8A patent/CN104556027A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169396A (en) * | 1996-06-26 | 1998-01-07 | 陶敏 | Active carbon made from pentacarpus fruit kernel |
| CN102583369A (en) * | 2012-01-12 | 2012-07-18 | 江西师范大学 | Method for preparing powdered activated carbon from longan seeds |
| CN103803548A (en) * | 2014-02-20 | 2014-05-21 | 江西师范大学 | Biomass powder activated carbon prepared from lychee seeds and preparation method thereof |
| CN103803549A (en) * | 2014-02-20 | 2014-05-21 | 江西师范大学 | Micron-sized granular active carbon prepared from litchi shells and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105645409A (en) * | 2016-02-18 | 2016-06-08 | 柳州东侯生物能源科技有限公司 | Method for preparing biomass powdered activated carbon from lichi seeds |
| CN106904615A (en) * | 2017-05-02 | 2017-06-30 | 北京中欧普瑞科技有限公司 | Method for preparation of active carbon and the equipment for preparing activated carbon |
| CN109911896A (en) * | 2017-12-13 | 2019-06-21 | 贺州学院 | A kind of semen litchi method for preparation of active carbon through phosphoric acid activation |
| CN108126662A (en) * | 2018-02-08 | 2018-06-08 | 彭万喜 | A kind of absorber preparation method of microenvironment pollution control |
| CN111318256A (en) * | 2020-03-06 | 2020-06-23 | 浙江农林大学暨阳学院 | Preparation method of walnut shell biomass charcoal and adsorption method of walnut shell biomass charcoal on metal copper ions |
| CN111318256B (en) * | 2020-03-06 | 2022-11-04 | 浙江农林大学暨阳学院 | Preparation method of walnut shell biomass charcoal and adsorption method of walnut shell biomass charcoal on metal copper ions |
| CN113493203A (en) * | 2021-07-27 | 2021-10-12 | 福建省鑫森炭业股份有限公司 | Preparation method of activated carbon for regeneration treatment of kidney dialysate and activated carbon |
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Application publication date: 20150429 |