CN105175175A - Treatment method used for producing biochar from tobacco waste - Google Patents
Treatment method used for producing biochar from tobacco waste Download PDFInfo
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- CN105175175A CN105175175A CN201510410635.3A CN201510410635A CN105175175A CN 105175175 A CN105175175 A CN 105175175A CN 201510410635 A CN201510410635 A CN 201510410635A CN 105175175 A CN105175175 A CN 105175175A
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Abstract
The invention relates to a novel treatment method used for producing biochar from tobacco waste. According to the treatment method, tobacco waste is taken as a raw material; and tobacco waste is transformed into biochar via hydrothermal reaction; biochar can be obtained without combustion low-temperature pyrolysis in an anaerobic or oxygen-free environment; and compared with production of biochar via low-temperature pyrolysis in the anaerobic or oxygen-free environment, utilization ratio of tobacco waste is increased effectively, biochar yield is high, no smoke is discharged, no environmental pollution is caused, and energy conservation and emission reduction are realized.
Description
technical field:
The invention belongs to tobacco waste recovery and reuse technology field, be specifically related to a kind for the treatment of process utilizing tobacco waste to produce charcoal.
background technology:
For a long time, China tobacco grower is in tobacco leaf planting production process, and the low pin leaf that vega produces, fireworks, cigarette are pitched, custom is discarded in field, the edge of a field or stream place, and the degradation material after tobacco leaf rots, with dispersion of flow, not only wastes resource, pollute vega environment, and easily grow disease and pest propagation.Along with tobacco industry is in recent years to the concern of Basic tobacco field health and the requirement of planningization plantation, various places tobacco company is provided with waste collection pond or incinerator around vega, but except concentrating individually in flakes except show area, still by tobacco grower by oneself, the phenomenon abandoning waste is everywhere also more serious in Jue great Shuo Yan district.Meanwhile, after tobacco flue-curing, the blade position of tobacco leaf is used to cigarette, but offal is comparatively hard, is not suitable for cigarette, and therefore, a large amount of offals is thrown away by as waste.
The use inorganic fertilizer that current China tobacco is a large amount of in planting process, cause vega soil to harden, soil nutrient is lacked of proper care, soil microorganisms breeds and is suppressed, fertilizer efficiency can not be played completely, finally cause the quality of tobacco of planting out poor, therefore, for ensureing quality of tobacco, continue to improve vega soil.
At present, in soil improvement, charcoal has irreplaceable advantage, and charcoal carbon content is high, stable in properties, and surface porosity porous, specific surface area are large, effectively can improve SOIL CARBON AND NITROGEN ratio after being manured into soil, and increases soil organic matter content.And charcoal has farmland, lane waste to produce mostly, at present, for the production of farmland waste mainly agricultural crop straw, corn cob, Pericarppium arachidis hypogaeae, the husk etc. of charcoal, charcoal production is used for for tobacco waste and also lacks correlative study.The total nitrogen content of tobacco waste is up to 10%, and the content of potassium, phosphorus, calcium and organic matter, all about 1.5%, improves vega soil with the charcoal that tobacco waste is produced into, and will have far reaching significance concerning China's tobacco planting industry.
summary of the invention:
In sum, in order to overcome the deficiency of prior art problem, the invention provides a kind for the treatment of process utilizing tobacco waste to produce charcoal, it take tobacco waste as raw material, tobacco waste is changed into charcoal through hydro-thermal reaction, just can obtain charcoal without the need to low temperature pyrolyzer under anoxic or oxygen-free environment, and utilization rate of raw materials is high, technological operation is simple, energy consumption is low, production cost is little.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
Tobacco waste is utilized to produce a treatment process for charcoal, wherein: concrete technology step is as follows:
(1) tobacco waste is dry, make its water content be down to less than 15%;
(2) dried tobacco waste is pulverized;
(3) tobacco waste after pulverizing is mixed with water, then import in hydrothermal reaction kettle and carry out hydro-thermal carbonization reaction;
(4) cooled by the mixture after hydro-thermal carbonization reaction, send into solid-liquid separator afterwards and carry out solid-liquid separation, the solid matter after separation is charcoal;
(5) store after charcoal drying, so far complete the production of charcoal.
Technical scheme of the present invention can also be achieved in that one or more that described tobacco waste comprises in low pin tobacco leaf, fireworks, cigarette fork, tobacco stem stalk and offal.
Technical scheme of the present invention can also be achieved in that the granular size of the tobacco waste after pulverizing in step (2) is 3 ~ 6mm.
Technical scheme of the present invention can also be achieved in that the ratio that in step (3), tobacco waste mixes with water is 1kg:8L ~ 1kg:16L.
Technical scheme of the present invention can also be achieved in that the time of hydro-thermal charing in step (3) is 5 ~ 10 hours.
Technical scheme of the present invention can also be achieved in that the temperature in step (3) in hydrothermal reaction kettle is 350 DEG C ~ 500 DEG C.
After technical scheme of the present invention can also be achieved in that step (5) charcoal drying, water ratio is lower than 10%.
Beneficial effect of the present invention is:
1, the present invention take tobacco waste as raw material, tobacco waste is changed into charcoal through hydro-thermal reaction, just can obtain charcoal without the need to the low temperature pyrolyzer that burns under anoxic or oxygen-free environment, and utilization rate of raw materials is high, technological operation is simple, energy consumption is low, production cost is little.
2, the present invention utilizes tobacco waste to produce charcoal, because total nitrogen content in tobacco waste is up to 10%, the content of potassium, phosphorus, calcium and organic matter is all about 1.5%, this charcoal just making tobacco waste produce is except carbon elements, also containing various trace elements such as nitrogen, phosphorus, potassium, calcium, thus advantageously in improvement soil, make the nutritive ingredient in soil more sufficient.
3, simple, the processing ease of present invention process, with low cost, compared with producing charcoal with the low temperature pyrolyzer that burns under anoxic or oxygen-free environment, effectively can improve the utilization ratio of tobacco waste, charcoal output capacity is high, do not discharge flue gas, environmentally safe, energy-saving and emission-reduction.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
embodiment one
Utilize tobacco waste to produce a treatment process for charcoal, concrete technology step is as follows:
(1) by natural air drying after the waste gathering that produces in the tobacco planting process of growth such as low pin tobacco leaf, fireworks, cigarette fork, its water content is made to be down to 15%;
(2) dried tobacco waste is pulverized; The granular size of the tobacco waste after pulverizing is 3mm
(3) mixed with water by the tobacco waste after pulverizing, tobacco waste and water blending ratio are 1kg:8L, and then import in hydrothermal reaction kettle and carry out hydro-thermal carbonization reaction, hydro-thermal carbonization reaction temperature is 300 DEG C, and hydro-thermal carbonization time is 5 hours;
(4) carried out being cooled to normal temperature by the mixture after hydro-thermal carbonization reaction, send into solid-liquid separator afterwards and carry out solid-liquid separation, the solid matter after separation is charcoal;
(5) store after charcoal drying, dry artifact charcoal water ratio is 10%, so far completes the production of charcoal.
embodiment two
Utilize tobacco waste to produce a treatment process for charcoal, concrete technology step is as follows:
(1), after being collected by tobacco rod remaining after tobacco leaf picking, removing undesirable root also cleans earth natural air drying, makes its water content be down to 10%;
(2) dried tobacco rod is pulverized by stalk crasher; The granular size of the tobacco rod after pulverizing is 6mm
(3) mixed with water by the tobacco waste after pulverizing, tobacco waste and water blending ratio are 1kg:16L, and then import in hydrothermal reaction kettle and carry out hydro-thermal carbonization reaction, hydro-thermal carbonization reaction temperature is 500 DEG C, and hydro-thermal carbonization time is 10 hours;
(4) carried out being cooled to normal temperature by the mixture after hydro-thermal carbonization reaction, send into solid-liquid separator afterwards and carry out solid-liquid separation, the solid matter after separation is charcoal;
(5) store after charcoal drying, dry artifact charcoal water ratio is 10%, so far completes the production of charcoal.
embodiment three
Utilize tobacco waste to produce a treatment process for charcoal, concrete technology step is as follows:
(1) after tobacco flue-curing being isolated pipe tobacco, remaining offal is collected, and because offal is through overbaking, itself water content is just lower than 10%;
(2) offal collected is pulverized; The granular size of the tobacco rod after pulverizing is 4mm
(3) mixed with water by the tobacco waste after pulverizing, tobacco waste and water blending ratio are 1kg:10L, and then import in hydrothermal reaction kettle and carry out hydro-thermal carbonization reaction, hydro-thermal carbonization reaction temperature is 400 DEG C, and hydro-thermal carbonization time is 8 hours;
(4) carried out being cooled to normal temperature by the mixture after hydro-thermal carbonization reaction, send into solid-liquid separator afterwards and carry out solid-liquid separation, the solid matter after separation is charcoal;
(5) store after charcoal drying, dry artifact charcoal water ratio is 10%, so far completes the production of charcoal.
Be noted that, above-described embodiment is unrestricted to the explanation of technical solution of the present invention, the equivalent replacement of art those of ordinary skill or other amendment made according to prior art, as long as do not exceed thinking and the scope of technical solution of the present invention, all should be included within interest field of the presently claimed invention.
Claims (7)
1. utilize tobacco waste to produce a treatment process for charcoal, it is characterized in that: concrete technology step is as follows:
(1) dry after tobacco waste being collected, make its water content be down to less than 15%;
(2) dried tobacco waste is pulverized;
(3) tobacco waste after pulverizing is mixed with water, then import in hydrothermal reaction kettle and carry out hydro-thermal carbonization reaction;
(4) carried out being cooled to normal temperature by the mixture after hydro-thermal carbonization reaction, send into solid-liquid separator afterwards and carry out solid-liquid separation, the solid matter after separation is charcoal;
(5) store after charcoal drying, so far complete the production of charcoal.
2. the treatment process utilizing tobacco waste to produce charcoal according to claim 1, is characterized in that: described tobacco waste comprises one or more in low pin tobacco leaf, fireworks, cigarette fork, tobacco stem stalk and offal.
3. the treatment process utilizing tobacco waste to produce charcoal according to claim 1, is characterized in that: the granular size of the tobacco waste after pulverizing in step (2) is 3 ~ 6mm.
4. the treatment process utilizing tobacco waste to produce charcoal according to claim 1, is characterized in that: the ratio that in step (3), tobacco waste mixes with water is 1kg:8L ~ 1kg:16L.
5. the treatment process utilizing tobacco waste to produce charcoal according to claim 1, is characterized in that: in step (3), the time of hydro-thermal charing is 5 ~ 10 hours.
6. the treatment process utilizing tobacco waste to produce charcoal according to claim 1, is characterized in that: the temperature in step (3) in hydrothermal reaction kettle is 350 DEG C ~ 500 DEG C.
7. the treatment process utilizing tobacco waste to produce charcoal according to claim 1, is characterized in that: after step (5) charcoal drying, water ratio is lower than 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510410635.3A CN105175175A (en) | 2015-07-14 | 2015-07-14 | Treatment method used for producing biochar from tobacco waste |
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| CN201510410635.3A CN105175175A (en) | 2015-07-14 | 2015-07-14 | Treatment method used for producing biochar from tobacco waste |
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| CN105175175A true CN105175175A (en) | 2015-12-23 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921109A (en) * | 2016-06-01 | 2016-09-07 | 湖南农业大学 | Biological carbon prepared from tobacco stems as well as preparation method and application thereof |
| CN106588313A (en) * | 2016-12-03 | 2017-04-26 | 青岛漾花湖农业科技有限公司 | Functional liquid fertilizer prepared by catalyzing agricultural waste biomass |
| CN106673896A (en) * | 2016-12-12 | 2017-05-17 | 浙江科技学院 | Lotus leaf carbon based fertilizer and preparation method thereof |
| CN106748452A (en) * | 2016-12-12 | 2017-05-31 | 浙江科技学院 | A kind of lotus bar charcoal base manure material and preparation method thereof |
| CN107162745A (en) * | 2017-05-26 | 2017-09-15 | 四川农业大学 | A kind of preparation method of flue-cured tobacco charcoal base slow released fertilizer |
| CN113731374A (en) * | 2021-08-18 | 2021-12-03 | 暨南大学 | Modified tobacco straw biochar material and preparation method and application thereof |
| CN114585709A (en) * | 2019-09-09 | 2022-06-03 | 丁伟文 | System and method for converting unsorted solid waste |
| CN114933510A (en) * | 2022-06-25 | 2022-08-23 | 湖南省烟草公司郴州市公司 | Method for preparing liquid organic fertilizer special for tobacco by utilizing waste tobacco stems |
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| BRPI0802061A2 (en) * | 2008-05-07 | 2010-01-12 | Silvio Benedicto Alvarinho | Improvement of the hydrothermal charcoal production process using high moisture and high yielding vegetable residues and biomasses such as gramineas, applying this charcoal as an energetic burial in the ground consisting of a carbon sequestration system |
| CN103074094A (en) * | 2013-02-05 | 2013-05-01 | 云南省农业科学院农业环境资源研究所 | Method for preparing charcoal by tobacco straws |
| CN104724694A (en) * | 2015-03-20 | 2015-06-24 | 浙江科技学院 | Preparation method of rice straw biochar |
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2015
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Patent Citations (3)
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| BRPI0802061A2 (en) * | 2008-05-07 | 2010-01-12 | Silvio Benedicto Alvarinho | Improvement of the hydrothermal charcoal production process using high moisture and high yielding vegetable residues and biomasses such as gramineas, applying this charcoal as an energetic burial in the ground consisting of a carbon sequestration system |
| CN103074094A (en) * | 2013-02-05 | 2013-05-01 | 云南省农业科学院农业环境资源研究所 | Method for preparing charcoal by tobacco straws |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921109A (en) * | 2016-06-01 | 2016-09-07 | 湖南农业大学 | Biological carbon prepared from tobacco stems as well as preparation method and application thereof |
| CN106588313A (en) * | 2016-12-03 | 2017-04-26 | 青岛漾花湖农业科技有限公司 | Functional liquid fertilizer prepared by catalyzing agricultural waste biomass |
| CN106673896A (en) * | 2016-12-12 | 2017-05-17 | 浙江科技学院 | Lotus leaf carbon based fertilizer and preparation method thereof |
| CN106748452A (en) * | 2016-12-12 | 2017-05-31 | 浙江科技学院 | A kind of lotus bar charcoal base manure material and preparation method thereof |
| CN107162745A (en) * | 2017-05-26 | 2017-09-15 | 四川农业大学 | A kind of preparation method of flue-cured tobacco charcoal base slow released fertilizer |
| CN114585709A (en) * | 2019-09-09 | 2022-06-03 | 丁伟文 | System and method for converting unsorted solid waste |
| CN114585709B (en) * | 2019-09-09 | 2024-06-04 | 丁伟文 | System and method for converting unclassified solid waste |
| CN113731374A (en) * | 2021-08-18 | 2021-12-03 | 暨南大学 | Modified tobacco straw biochar material and preparation method and application thereof |
| CN114933510A (en) * | 2022-06-25 | 2022-08-23 | 湖南省烟草公司郴州市公司 | Method for preparing liquid organic fertilizer special for tobacco by utilizing waste tobacco stems |
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