CN101177263A - Method for producing activative carbon by tobacco solid waste - Google Patents
Method for producing activative carbon by tobacco solid waste Download PDFInfo
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- CN101177263A CN101177263A CNA2007100360933A CN200710036093A CN101177263A CN 101177263 A CN101177263 A CN 101177263A CN A2007100360933 A CNA2007100360933 A CN A2007100360933A CN 200710036093 A CN200710036093 A CN 200710036093A CN 101177263 A CN101177263 A CN 101177263A
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Abstract
The invention discloses an activated carbon production method with tobacco solid waste, which comprises the following steps: material pretreatment (1), treatment of zinc chloride solution (2), carbonization and activation (3), pickling (4), and rinsing and drying (5). The invention has the advantages of simple technology, low energy consumption, low production cost, realization of the scale production of the active carbon powder, good environmental benefit due to the used materials of tobacco solid wastes and solid wastes generated in the process of comprehensive utilization and less waste generation in production process, convenient use, versatility, stability, and convenient and safe storage and transportation.
Description
Technical field
The present invention relates to a kind of is the method for feedstock production powdered active carbon with the solid waste that produces in solid tobacco waste and the comprehensive utilization process thereof.
Background technology
Gac is that a kind of outward appearance of being made by carbonaceous material is that black, the prosperity of internal voids structure, specific surface area are big, a class microcrystalline carbon materials of high adsorption capacity.It is a kind of sorbent material commonly used, catalyzer or support of the catalyst; be widely used in the nearly all scientific research and sector of the national economy and daily life such as chemistry, biotechnology, food, medicine, national defence, environment protection, the energy, application surface is more and more wideer, demand steady-state growth year by year.
The core of activated carbon technology is carbon raw material and the corresponding preparation technology who is adopted.
The preparation raw material has timber, coke, refinery coke, shell, crop stalk, synthon, coal and plastics etc.In the face of the raw material supply of growing tension, how to enlarge the raw material sources of producing gac, utilize the solid waste that influences environment as far as possible, reduce raw materials cost, become the basic problem that enhanced activity charcoal product competitiveness need solve.
Existing method for preparation of active carbon has chemical method, physics method and physico-chemical processes etc.Chemical method prepares gac, generally is activator and raw material to be blended in carry out the pyrolysated method under the inert atmosphere.These methods cut both ways.
Strong and weak, technology raw materials used with preparation of the internal voids physical structure of gac, specific surface area size, adsorptive power and the finished product shape have substantial connection.
From industrialization and commercial angle, according to market demand, select proper raw material for use, determine scientific and reasonable technology, realize good cost performance, be the key of industrialization.
Summary of the invention
The object of the present invention is to provide a kind of is raw material with the solid tobacco waste, and technology is simple, and energy consumption is low, and production cost is low, and environmental benefit is good, the preparation method of the powdered active carbon of being convenient to accomplish scale production.
The objective of the invention is to be achieved through the following technical solutions: with the solid tobacco waste raw material, ZnCl
2Be activator, be prepared with a step carbonization-activation method.Specifically may further comprise the steps:
(1) raw materials pretreatment: raw material is the solid waste that produces in solid tobacco waste and the comprehensive utilization process thereof, comprise discarded stalk material, dust, processing waste material in the tobacco leaf course of processing, the broken end of the tobacco leaf of Redrying Factory, go mouldy, inferior tobacco, the solid waste that useful products such as eggplant Buddhist nun alcohol, nicotine, medicinal extract, absolute oil produce later on etc. are extracted in the comprehensive utilization of tobacco and tobacco waste; Solid tobacco waste for without comprehensive utilization was soaked in water earlier 12-24 hour, solid-liquid separation dehydration again; Then the solid tobacco waste raw material is carried out drying (can dry or dry), make its water ratio reduce to 6%-12% (preferred 8%-10%); Mechanical disintegration mixes again, crosses the 5-35 mesh sieve;
(2) liquor zinci chloridi is handled: with 3-6 is the ZnCl of 10%-30% to the mass concentration of dried powder weight doubly
2Solution (the industrial zinc chloride preparation of available content more than 96%) soaking and stirring 2-6 hour, drying is 20～50 minutes under 80 ℃ of-110 ℃ of conditions;
(3) charing, activation: the raw material that liquor zinci chloridi was handled is put into High Temperature Furnaces Heating Apparatus, (various rare gas elementes such as nitrogen or carbonic acid gas etc. all can to feed rare gas element, but nitrogen is cheap and easy to get, so preferred nitrogen), be warming up to 500 ℃～800 ℃ and carry out charing, activation, charing, soak time are 2-6 hour;
(4) pickling: after will activating carbide and being cooled to room temperature, with 1: 3-1: 6 amount joins in the hydrochloric acid (available industrial concentrated hydrochloric acid preparation) of 5-30% (mass concentration), boils 0.5-1.5 hour, carries out solid-liquid separation, and liquid phase is recycled;
(5) rinsing, drying: with (4) step gained solid formation with water rinse to neutral, 100 ℃～110 ℃ dry 1.5-3.5 hour, be cooled to room temperature, obtain the powdered active carbon product.
Technology of the present invention is simple, and energy consumption is low, is convenient to the powdered active carbon of accomplishing scale production.Because the raw materials used solid waste that produces in solid tobacco waste and the comprehensive utilization process thereof that is does not produce waste basically yet in the production process, technology is simple in addition, and energy consumption is low, and therefore, production cost is low, and has good benefits in environment.
Use the activated carbon product of the present invention's preparation, easy to use, of many uses; Good stability, storage and convenient transport, safety.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
(1) is raw material with discarded tobacco stems material, dust, processing waste material, described solid tobacco waste was soaked in water 12 hours solid-liquid separation dehydration earlier, drying, mechanical disintegration mixes, cross 5 mesh sieves, (2) are with 4 times of ZnCl to 18% (mass concentration) of dried powder
2Solution soaking stirred 4 hours, drying; (3) under 750 ℃ of temperature, lead to the carbonization-activation that nitrogen carried out 5 hours; (4) will activate carbide and be cooled to room temperature after, join with 1: 3.8 weight ratio in the hydrochloric acid of 15% (mass concentration) and boiled solid-liquid separation 1 hour; (5) with solid formation with water rinse to neutral, 105 ℃ of dryings 3 hours, be chilled to room temperature, the powdered active carbon product.
Press the method for GB/T12496.8-1999 regulation, recording present embodiment activated carbon product iodine sorption value is 1260mg/g.
Embodiment 2
(1) be raw material with extraction eggplant Buddhist nun alcohol, the later solid waste of nicotine, with described solid waste drying, mechanical disintegration mixes, and crosses 25 mesh sieves; (2) with 3 times of 10% (mass concentration) ZnCl to dried powder
2Solution soaking stirred 3 hours, drying; (3) under 550 ℃ of temperature, lead to the carbonization-activation that carbon dioxide carried out 2 hours; (4) will activate carbide and be cooled to room temperature after, join with 1: 5 amount in the hydrochloric acid of 30% (mass concentration) and boiled solid-liquid separation 0.5 hour; (5) with solid formation with water rinse to neutral, 100 ℃ of dryings 1.5 hours, be chilled to room temperature, the powdered active carbon product.
Press the method for GB/T12496.8-1999 regulation, recording present embodiment activated carbon product iodine sorption value is 1021mg/g.
Embodiment 3
(1) cigar mill's solid waste was soaked in water 24 hours, solid-liquid separation dehydration, the solid waste that the comprehensive utilization of itself and inferior tobacco is produced merges again, and dry simultaneously, mechanical disintegration mixes, and crosses 35 mesh sieves; (2) with 6 times of ZnCl to 30% (mass concentration) of dried powder
2Solution soaking stirred 6 hours, drying; (3) logical nitrogen carries out 4 hours charing, activation under 800 ℃ of temperature; (4) will activate carbide and be cooled to room temperature after, join with 1: 6 amount in the hydrochloric acid of 20% (mass concentration) and boiled solid-liquid separation 1.5 hours; (5) to neutral, 110 ℃ of dryings 3.5 hours, cold house's temperature promptly got the powdered active carbon product to solid formation with water rinse.
Press the method for GB/T12496.8-1999 regulation, recording present embodiment activated carbon product iodine sorption value is 1157mg/g.
Claims (3)
1. the method for a producing activative carbon by tobacco solid waste is characterized in that, may further comprise the steps:
(1) raw material and pre-treatment: raw material is the solid waste that produces in solid tobacco waste and the comprehensive utilization process thereof, comprise discarded stalk material, dust, processing waste material in the tobacco leaf course of processing, the broken end of the tobacco leaf of Redrying Factory, go mouldy, inferior tobacco, the solid waste that useful products such as eggplant Buddhist nun alcohol, nicotine, medicinal extract, absolute oil produce is later on extracted in the comprehensive utilization of tobacco and tobacco waste; Solid tobacco waste for without comprehensive utilization was soaked in water earlier 12-24 hour, solid-liquid separation dehydration again; Then the solid tobacco waste raw material is carried out drying, make its water ratio reduce to 6%-12%; Mechanical disintegration mixes again, crosses the 5-35 mesh sieve;
(2) liquor zinci chloridi is handled: with 3-6 is the ZnCl of 10%-30% to dried powder weight mass concentration doubly
2Solution soaking stirred 2-6 hour, and drying is 20～50 minutes under 80 ℃ of-110 ℃ of conditions;
(3) charing, activation: the raw material that liquor zinci chloridi was handled is put into High Temperature Furnaces Heating Apparatus, feed rare gas element, be warming up to 500 ℃～800 ℃ and carry out charing, activation, charing, soak time are 2-6 hour;
(4) pickling: after will activating carbide and being cooled to room temperature, with 1: the weight ratio of 3-6 joins in the hydrochloric acid that mass concentration is 5%-30%, boil 0.5-1.5 hour after, carry out solid-liquid separation;
(5) rinsing, drying: with (4) step gained solid formation with water rinse to neutral, 100 ℃～110 ℃ dry 1.5-3.5 hour, be cooled to room temperature.
2. the method for producing activative carbon by tobacco solid waste according to claim 1 is characterized in that, in described (1) step, the water ratio behind the solid tobacco waste raw material drying is 8%-10%.
3. the method for producing activative carbon by tobacco solid waste according to claim 1 is characterized in that, in described (3) step, rare gas element is a nitrogen.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100360933A CN101177263A (en) | 2007-11-09 | 2007-11-09 | Method for producing activative carbon by tobacco solid waste |
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| CNA2007100360933A CN101177263A (en) | 2007-11-09 | 2007-11-09 | Method for producing activative carbon by tobacco solid waste |
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| CN101177263A true CN101177263A (en) | 2008-05-14 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145889A (en) * | 2011-04-15 | 2011-08-10 | 安徽冬阳生物能源有限公司 | Technology for preparing active carbon from biomass pyrolysis waste |
| CN102530940A (en) * | 2011-12-12 | 2012-07-04 | 张荣斌 | Method for producing active carbon by using waste |
| CN105036110A (en) * | 2015-07-03 | 2015-11-11 | 湘潭大学 | Juncus effuses biochar with loose porous structures, and preparation method thereof |
| CN105417540A (en) * | 2015-11-05 | 2016-03-23 | 湘潭大学 | Method for preparing biomass activated carbon and application of biomass activated carbon to lithium sulfur batteries |
| CN109911895A (en) * | 2019-02-25 | 2019-06-21 | 合肥学院 | A kind of preparation method of tobacco-based modified activated carbon |
| CN111137889A (en) * | 2020-01-09 | 2020-05-12 | 中国烟草总公司四川省公司 | Tobacco matrix activated carbon and preparation method thereof |
| CN111530465A (en) * | 2020-05-26 | 2020-08-14 | 湘潭大学 | Preparation method of supported cigarette end porous carbon material catalyst and application of supported cigarette end porous carbon material catalyst in nitrocyclohexane hydrogenation reaction |
| CN112645327A (en) * | 2020-12-21 | 2021-04-13 | 中国烟草总公司郑州烟草研究院 | Preparation method of porous carbon core-shell composite material |
-
2007
- 2007-11-09 CN CNA2007100360933A patent/CN101177263A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145889A (en) * | 2011-04-15 | 2011-08-10 | 安徽冬阳生物能源有限公司 | Technology for preparing active carbon from biomass pyrolysis waste |
| CN102145889B (en) * | 2011-04-15 | 2013-06-05 | 安徽冬阳生物能源有限公司 | Technology for preparing active carbon from biomass pyrolysis waste |
| CN102530940A (en) * | 2011-12-12 | 2012-07-04 | 张荣斌 | Method for producing active carbon by using waste |
| CN105036110A (en) * | 2015-07-03 | 2015-11-11 | 湘潭大学 | Juncus effuses biochar with loose porous structures, and preparation method thereof |
| CN105417540A (en) * | 2015-11-05 | 2016-03-23 | 湘潭大学 | Method for preparing biomass activated carbon and application of biomass activated carbon to lithium sulfur batteries |
| CN109911895A (en) * | 2019-02-25 | 2019-06-21 | 合肥学院 | A kind of preparation method of tobacco-based modified activated carbon |
| CN109911895B (en) * | 2019-02-25 | 2023-01-31 | 合肥学院 | Preparation method of tobacco-based modified activated carbon |
| CN111137889A (en) * | 2020-01-09 | 2020-05-12 | 中国烟草总公司四川省公司 | Tobacco matrix activated carbon and preparation method thereof |
| CN111530465A (en) * | 2020-05-26 | 2020-08-14 | 湘潭大学 | Preparation method of supported cigarette end porous carbon material catalyst and application of supported cigarette end porous carbon material catalyst in nitrocyclohexane hydrogenation reaction |
| CN112645327A (en) * | 2020-12-21 | 2021-04-13 | 中国烟草总公司郑州烟草研究院 | Preparation method of porous carbon core-shell composite material |
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Open date: 20080514 |