CN105329880A - Flax stem carbon preparing method - Google Patents
Flax stem carbon preparing method Download PDFInfo
- Publication number
- CN105329880A CN105329880A CN201510764025.3A CN201510764025A CN105329880A CN 105329880 A CN105329880 A CN 105329880A CN 201510764025 A CN201510764025 A CN 201510764025A CN 105329880 A CN105329880 A CN 105329880A
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- CN
- China
- Prior art keywords
- flax
- waste
- stems
- carbon
- water content
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
- C01P2006/17—Pore diameter distribution
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- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a flax stem carbon preparing method. The method comprises the steps of 1, peeling mature flax, and exposing flax stems under the sun till water content is not larger than 10%; 2, conducting fumigation on the flax stems processed in the step 1 for 2 h with a salpeter solution with the mass concentration of 1%, then boiling the flax stems in a sodium bicarbonate solution with the mass concentration of 5%, taking the flax stems out and conducting draining; 3, drying the flax stems processed in the step 2 in the air till water content is not larger than 15%, wrapping the processed flax stems in sludge, drying the flax stems wrapped in sludge by a fire at 120-128 DEG C, and then conducting heating carbonization on the dried flax stems wrapped in sludge in a sand bath to generate flax stem carbon, wherein the temperature of the sand bath is 615-620 DEG C. By the adoption of the method, carbonation efficiency can be improved, carbonation temperature can be reduced, and the void ratio of the flax stem carbon can be increased.
Description
Technical field
The invention belongs to material processing field, be specifically related to a kind of working method of waste of flax carbon.
Background technology
Flax is a kind of important cash crop, and shive can make the rope made of hemp, weave cotton cloth, but the larger waste of flax of output cannot Appropriate application, and the general method of burning that adopts uses, and not only cause the waste of resource, and burning can cause the pollution of environment; Rose in recent years and use straw to make charcoal, and the waste of flax carbon using waste of flax to make does the important source material of gunpowder especially.
But now waste of flax carbon adds man-hour, and carbonization temperature is often more than 650 DEG C, and temperature is higher, energy waste is comparatively large, and waste of flax carbon ratio surface-area after carbonization is less, and adsorptive power is poor.
Summary of the invention
The object of this invention is to provide a kind of working method of waste of flax carbon, by the improvement to technique, the temperature of carbonizing treatment can be reduced, promote the reference area of waste of flax carbon.
The present invention is achieved through the following technical solutions:
A working method for waste of flax carbon, comprises the following steps:
(1), by flax peeling of maturation, be exposed to the sun under waste of flax being placed on the sun to waste of flax water content and be not more than 10%;
(2) the salpeter solution suffocating treatment 2h of the waste of flax functional quality concentration 1%, by step (1) handled well, then put into mass concentration be 5% sodium hydrogen carbonate solution boil 30-40min, pull out, drain away the water;
(3), 15% is not more than air-dry for the above-mentioned waste of flax handled well to water content, waste of flax above-mentioned steps handled well uses mud parcel, 25-30 DEG C, place 15-20 days under relative humidity 45-60%, then waste of flax is dried under mud parcel at 120-128 DEG C, then use and the waste of flax that the mud dried wraps up is carried out intensification charing under sand-bath, sand-bath temperature is 615-620 DEG C, obtains waste of flax carbon.
Beneficial effect of the present invention: straw, by before carbonizing treatment, processes by the present invention, makes Mierocrystalline cellulose carry out separation activation, use mud parcel, store, the oxygen in waste of flax can be decomposed, the efficiency of carbonization can be promoted, reduce carbonization temperature, the voidage of waste of flax carbon can also be promoted.The carbonation rate using method of the present invention to produce waste of flax carbon straw can reach more than 99.6%, uses method of the present invention can reduce energy consumption about 10% in the course of processing simultaneously.The specific surface area of the waste of flax carbon using this method to prepare reaches 2422m
2/ g, and microporosity is more than 94.3%.
Embodiment
A working method for waste of flax carbon, comprises the following steps:
(1), by flax peeling of maturation, be exposed to the sun under waste of flax being placed on the sun to waste of flax water content and be not more than 10%;
(2) the salpeter solution suffocating treatment 2h of the waste of flax functional quality concentration 1%, by step (1) handled well, then put into mass concentration be 5% sodium hydrogen carbonate solution at 100 DEG C, boil 38min, pull out, drain away the water;
(3), 15% is not more than air-dry for the above-mentioned waste of flax handled well to water content, waste of flax above-mentioned steps handled well uses mud parcel, 28 DEG C, relative humidity 52% time places 18 days, then waste of flax is dried under mud parcel at 125 DEG C, then use and the waste of flax that the mud dried wraps up is carried out intensification charing under sand-bath, sand-bath temperature is 618 DEG C, obtains waste of flax carbon.
Claims (1)
1. a working method for waste of flax carbon, is characterized in that, comprises the following steps:
(1), by flax peeling of maturation, be exposed to the sun under waste of flax being placed on the sun to waste of flax water content and be not more than 10%;
(2) the salpeter solution suffocating treatment 2h of the waste of flax functional quality concentration 1%, by step (1) handled well, then put into mass concentration be 5% sodium hydrogen carbonate solution boil 30-40min, pull out, drain away the water;
(3), 15% is not more than air-dry for the above-mentioned waste of flax handled well to water content, waste of flax above-mentioned steps handled well uses mud parcel, 25-30 DEG C, place 15-20 days under relative humidity 45-60%, then waste of flax is dried under mud parcel at 120-128 DEG C, then use and the waste of flax that the mud dried wraps up is carried out intensification charing under sand-bath, sand-bath temperature is 615-620 DEG C, obtains waste of flax carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510764025.3A CN105329880A (en) | 2015-11-11 | 2015-11-11 | Flax stem carbon preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510764025.3A CN105329880A (en) | 2015-11-11 | 2015-11-11 | Flax stem carbon preparing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105329880A true CN105329880A (en) | 2016-02-17 |
Family
ID=55280688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510764025.3A Pending CN105329880A (en) | 2015-11-11 | 2015-11-11 | Flax stem carbon preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105329880A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050196336A1 (en) * | 2004-03-05 | 2005-09-08 | Chatterjee Arup K. | Activated graphitic carbon and metal hybrids thereof |
| CN102126723A (en) * | 2011-04-22 | 2011-07-20 | 武汉纺织大学 | Method for preparing active carbon from ramie stalks |
| CN102266122A (en) * | 2011-08-01 | 2011-12-07 | 云南聚恒科技有限公司 | Smoking filter material using hemp straw active carbon |
-
2015
- 2015-11-11 CN CN201510764025.3A patent/CN105329880A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050196336A1 (en) * | 2004-03-05 | 2005-09-08 | Chatterjee Arup K. | Activated graphitic carbon and metal hybrids thereof |
| CN102126723A (en) * | 2011-04-22 | 2011-07-20 | 武汉纺织大学 | Method for preparing active carbon from ramie stalks |
| CN102266122A (en) * | 2011-08-01 | 2011-12-07 | 云南聚恒科技有限公司 | Smoking filter material using hemp straw active carbon |
Non-Patent Citations (2)
| Title |
|---|
| 生物炭对中国北方酸化土壤的改性研究;徐振华;《中国博士学位论文全文数据库 农业科技辑》;20140815;正文部分第23页第3-6行 * |
| 酸碱蒸煮法提取小麦秸秆纤维素的研究;冯利等;《纤维素科学与技术》;20150630;第23卷(第2期);第62-63页第1.2节，第65-66页第2.3节 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160217 |
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| RJ01 | Rejection of invention patent application after publication |