CN102107864A - Method for preparing biomass conductive carbon - Google Patents
Method for preparing biomass conductive carbon Download PDFInfo
- Publication number
- CN102107864A CN102107864A CN 200910243795 CN200910243795A CN102107864A CN 102107864 A CN102107864 A CN 102107864A CN 200910243795 CN200910243795 CN 200910243795 CN 200910243795 A CN200910243795 A CN 200910243795A CN 102107864 A CN102107864 A CN 102107864A
- Authority
- CN
- China
- Prior art keywords
- conductive carbon
- stalk
- nickel
- carbonization
- biomass
- 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.)
- Granted
Links
Abstract
The invention belongs to the technical fields of the utilization of biomass energy and environmental protection and particularly relates to a method for preparing biomass conductive carbon. The method comprises the following steps: grinding biomass with a grinder, screening out biomass particles of which particle size is less than 0.4mm; soaking the biomass particles with nickel-based catalyst solution, filtering, drying; placing the obtained particles in a carbonization furnace to carbonize, wherein in the carbonization process, the particles are isolated from air or inert gas is introduced, the carbonization temperature is 700-1000 DEG C, the carbonization time is 1-2 hours; and cooling the product to the room temperature to obtain the conductive carbon. Compared with the traditional carbonization method, the conductive carbon prepared by the method of the invention has lower resistivity and good electrical conductivity and can be used in the fields such as electromagnetic shielding. The method of the invention has simple technology, low cost and low investment cost. Experiments show that the resistivity of the conductive carbon is no more than 1.5 Omega.cm.
Description
Technical field
The invention belongs to the utilization and the environmental protection technical field of biomass energy, particularly a kind of method for preparing biomass conductive carbon.
Background technology
Along with the development of modern high technology, electromagnetic interference that hertzian wave causes and electromagnetic compatibility problem are serious day by day, and the electromagnetic interference that electromagenetic wave radiation produces not only can influence the normal operation of various electronicss, and to healthy harm are arranged also.Therefore, electromagnetic interference problem has been subjected to extensive concern, and adopting electromagnetic shielding material is one of effective way, and with respect to traditional metal species shielding material, electromagnetic shielding material just develops towards direction light, thin, easily processing.
Electromagnetic shielding material commonly used at present is mainly based on metallic substance, have advantages such as electromagnetic shielding coefficient height and good mechanical property as Ag, Ni, Cu, Al etc., but metallic substance cost height, than great, perishable, poor processability and exist electromagnetic than strong reflection.Carbide after the biomass high-temperature charing (＞700 ℃) has certain electroconductibility and electromagnetic shielding ability; Can be used as electromagnetic shielding material.And prepare electromagnetic shielding material with metallic substance such as conduction charcoal instead of copper, silver, can reduce the cost of electromagnetic pollution control greatly; To all be with a wide range of applications aspect several at electronic industry, national defence, environment and healthy protect etc., and produce bigger economic benefit and social benefit.
Summary of the invention
The purpose of this invention is to provide a kind of method for preparing biomass conductive carbon, specifically be meant and adopt catalyzer that the conduction charcoal method with low resistivity is made in the biomass catalyzing charing, biomass used in the present invention are biomass straws such as wheat stalk.
A kind of method for preparing biomass conductive carbon is characterized in that, this method steps is as follows:
(1) biomass is ground with pulverizer, filter out the biological particles of particle diameter＜0.4mm;
(2) with the nickel-base catalyst solution soaking of the biological particles in (1);
(3) soaked biological particles in (2) is filtered and drying;
(4) dry good biological particles in (3) is put into charring furnace and carry out charing, secluding air or feed rare gas element in carbonization process, carbonization temperature is 700 ℃-1000 ℃, carbonization time is 1-2 hour, is cooled to room temperature, obtains conducting electricity charcoal.
Described biomass are agricultural stalk.
Described agricultural stalk comprises wheat stalk, barley stalk, rye stalk, oat stalk, paddy stalk, maize straw, soybean stalk, broomcorn straw.
Soak time is 8-24 hour described in the step (2).
Nickel-base catalyst solution is the solution of at least a preparation in nickelous nitrate, nickel acetate, the nickelous chloride described in the step (2).
Described in the step (2) in the nickel-base catalyst solution nickel ion massfraction be 3.0-10.0%.
Drying is carried out under 80 ℃-105 ℃ described in the step (3), and be 16-24 hour time of drying.
Temperature rise rate is 1-10 ℃/min during charing described in the step (4).
Beneficial effect of the present invention is: conduction charcoal provided by the invention, compare traditional charing method, and have lower resistivity, good conductivity is expected to obtain in fields such as electromagnetic shielding to use.And present method technology is simple, with low cost, equipment drops into little.Experiment showed, its resistivity≤1.5 Ω cm.
Embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment 1
With the wheat stalk is biomass material preparation conduction charcoal, and method steps is as follows:
(1) wheat stalk is ground with pulverizer, filter out the stalk particle of particle diameter＜0.4mm;
(2) stalk particle in (1) is used nickel-base catalyst solution soaking 10 hours, nickel-base catalyst is selected nickelous nitrate for use, and the nickel ion massfraction is 4.0% in the nickel-base catalyst solution;
(3) it is 22 hours with soaked stalk particle filtration in (2) and 80 ℃ of following time of drying;
(4) dry good stalk particle in (3) is put into charring furnace and carry out charing, secluding air in carbonization process is warming up to 700 ℃ with the temperature rise rate of 6 ℃/mim, and carbonization time is 2 hours, is cooled to room temperature, finishes charing, obtains conducting electricity charcoal.
Gained conduction carbon composition resistor rate is 1.5 Ω cm.
Embodiment 2
With the wheat stalk is biomass material preparation conduction charcoal, and method steps is as follows:
(1) wheat stalk is ground with pulverizer, filter out the stalk particle of particle diameter＜0.4mm;
(2) stalk particle in (1) is used nickel-base catalyst solution soaking 20 hours, nickel-base catalyst is selected nickelous nitrate and nickel acetate for use, and the nickel ion massfraction is 5.0% in the nickel-base catalyst solution;
(3) it is 18 hours with soaked stalk particle filtration in (2) and 90 ℃ of following time of drying;
(4) dry good stalk particle in (3) is put into charring furnace and carry out charing, feed argon gas in carbonization process, be warming up to 800 ℃ with the temperature rise rate of 4 ℃/mim, carbonization time is 1.5 hours, is cooled to room temperature, finishes charing, obtains conducting electricity charcoal.
Gained conduction carbon composition resistor rate is 1.4 Ω cm.
Embodiment 3
With the rice straw is biomass material preparation conduction charcoal, and method steps is as follows:
(1) rice straw is ground with pulverizer, filter out the stalk particle of particle diameter＜0.4mm;
(2) stalk particle in (1) is used nickel-base catalyst solution soaking 20 hours, nickel-base catalyst is selected nickelous chloride for use, and the nickel ion massfraction is 7.0% in the nickel-base catalyst solution;
(3) it is 18 hours with soaked stalk particle filtration in (2) and 100 ℃ of following time of drying;
(4) dry good stalk particle in (3) is put into charring furnace and carry out charing, secluding air in carbonization process is warming up to 1000 ℃ with the temperature rise rate of 8 ℃/mim, and carbonization time is 1.5 hours, is cooled to room temperature, finishes charing, obtains conducting electricity charcoal.
Gained conduction carbon composition resistor rate is 1.4 Ω cm.
Embodiment 4
With the soybean stalk is biomass material preparation conduction charcoal, and method steps is as follows:
(1) soybean stalk is ground with pulverizer, filter out the stalk particle of particle diameter＜0.4mm;
(2) stalk particle in (1) is used nickel-base catalyst solution soaking 24 hours, nickel-base catalyst is selected nickelous chloride for use, and the nickel ion massfraction is 9.0% in the nickel-base catalyst solution;
(3) it is 22 hours with soaked stalk particle filtration in (2) and 105 ℃ of following time of drying;
(4) dry good stalk particle in (3) is put into charring furnace and carry out charing, feed inert argon in carbonization process, be warming up to 900 ℃ with the temperature rise rate of 1 ℃/mim, carbonization time is 2 hours, is cooled to room temperature, finishes charing, obtains conducting electricity charcoal.
Gained conduction carbon composition resistor rate is 1.3 Ω cm.
Claims (8)
1. a method for preparing biomass conductive carbon is characterized in that, this method steps is as follows:
(1) biomass is ground with pulverizer, filter out the biological particles of particle diameter＜0.4mm;
(2) with the nickel-base catalyst solution soaking of the biological particles in (1);
(3) soaked biological particles in (2) is filtered and drying;
(4) dry good biological particles in (3) is put into charring furnace and carry out charing, secluding air or logical rare gas element in carbonization process, carbonization temperature are 700 ℃-1000 ℃, and carbonization time is 1-2 hour, is cooled to room temperature, obtain conducting electricity charcoal.
2. a kind of method for preparing biomass conductive carbon according to claim 1 is characterized in that described biomass are agricultural stalk.
3. a kind of method for preparing biomass conductive carbon according to claim 2 is characterized in that described agricultural stalk comprises wheat stalk, barley stalk, rye stalk, oat stalk, paddy stalk, maize straw, soybean stalk, jowar stalk.
4. a kind of method for preparing biomass conductive carbon according to claim 1 is characterized in that soak time is 8-24 hour described in the step (2).
5. a kind of method for preparing biomass conductive carbon according to claim 1 is characterized in that nickel-base catalyst solution is the solution of at least a preparation in nickelous nitrate, nickel acetate, the nickelous chloride described in the step (2).
6. a kind of according to claim 1 or 5 method for preparing biomass conductive carbon is characterized in that, described in the step (2) in the nickel-base catalyst solution nickel ion massfraction be 3.0-10.0%.
7. a kind of method for preparing biomass conductive carbon according to claim 1 is characterized in that, drying is carried out under 80 ℃-105 ℃ described in the step (3), and be 16-24 hour time of drying.
8. a kind of method for preparing biomass conductive carbon according to claim 1 is characterized in that, temperature rise rate is 1-10 ℃/min during charing described in the step (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910243795 CN102107864B (en) | 2009-12-24 | 2009-12-24 | Method for preparing biomass conductive carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910243795 CN102107864B (en) | 2009-12-24 | 2009-12-24 | Method for preparing biomass conductive carbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102107864A true CN102107864A (en) | 2011-06-29 |
| CN102107864B CN102107864B (en) | 2013-06-12 |
Family
ID=44172162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910243795 Expired - Fee Related CN102107864B (en) | 2009-12-24 | 2009-12-24 | Method for preparing biomass conductive carbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102107864B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604285A (en) * | 2013-12-02 | 2014-02-26 | 中南林业科技大学 | Biomass wood bit drying system and biomass wood bit drying method |
| CN104891479A (en) * | 2015-05-26 | 2015-09-09 | 中国林业科学研究院林产化学工业研究所 | Plant-based graphene and preparation method thereof |
| CN106865521A (en) * | 2017-01-18 | 2017-06-20 | 华中科技大学 | A kind of preparation method of biological carbon composite and products thereof |
| CN109231193A (en) * | 2018-08-17 | 2019-01-18 | 中国科学院宁波材料技术与工程研究所 | A kind of preparation method of biology base conductive carbon material and products thereof and application |
| CN109704303A (en) * | 2018-12-03 | 2019-05-03 | 江苏理工学院 | A kind of compound biomass carbon material and its preparation and the application in lithium selenium cell coated separator |
| CN114195118A (en) * | 2021-11-30 | 2022-03-18 | 暨南大学 | Method for preparing biomass conductive carbon by taking straws as raw materials |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008004732A1 (en) * | 2008-01-16 | 2009-07-23 | Lucia Viviane Sanders | Hydrothermal carbonization of biomass |
| CN101264879B (en) * | 2008-04-22 | 2010-07-07 | 东南大学 | Method for preparing biomass conductive charcoal |
| CN101456552B (en) * | 2009-01-06 | 2011-05-04 | 黑龙江大学 | In-situ synchronous synthesizing method of tungsten carbide/graphitic carbon nano complexes |
-
2009
- 2009-12-24 CN CN 200910243795 patent/CN102107864B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604285A (en) * | 2013-12-02 | 2014-02-26 | 中南林业科技大学 | Biomass wood bit drying system and biomass wood bit drying method |
| CN104891479A (en) * | 2015-05-26 | 2015-09-09 | 中国林业科学研究院林产化学工业研究所 | Plant-based graphene and preparation method thereof |
| CN104891479B (en) * | 2015-05-26 | 2017-02-01 | 中国林业科学研究院林产化学工业研究所 | Plant-based graphene and preparation method thereof |
| CN106865521A (en) * | 2017-01-18 | 2017-06-20 | 华中科技大学 | A kind of preparation method of biological carbon composite and products thereof |
| CN109231193A (en) * | 2018-08-17 | 2019-01-18 | 中国科学院宁波材料技术与工程研究所 | A kind of preparation method of biology base conductive carbon material and products thereof and application |
| CN109231193B (en) * | 2018-08-17 | 2021-05-11 | 中国科学院宁波材料技术与工程研究所 | Preparation method of bio-based conductive carbon material, product and application thereof |
| CN109704303A (en) * | 2018-12-03 | 2019-05-03 | 江苏理工学院 | A kind of compound biomass carbon material and its preparation and the application in lithium selenium cell coated separator |
| CN114195118A (en) * | 2021-11-30 | 2022-03-18 | 暨南大学 | Method for preparing biomass conductive carbon by taking straws as raw materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102107864B (en) | 2013-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102107864B (en) | Method for preparing biomass conductive carbon | |
| CN102061406B (en) | Novel high-elasticity Cu-Ni-Mn alloy and preparation method thereof | |
| CN101658940B (en) | Method for recycling and regenerating hard alloy | |
| CN107473731B (en) | High-energy piezoresistor and manufacturing method thereof | |
| CN106987738B (en) | A kind of Cu-Ni-Si-Co-Ti-RE copper alloys and preparation method thereof | |
| CN104028221A (en) | Magnetic active carbon and preparation method thereof | |
| CN103894623B (en) | A kind of preparation method of antioxidant ultrafine nickel powder | |
| DE102019003789A1 (en) | Graphene, apparatus for producing graphene, and method for producing graphene | |
| Xing et al. | Preparation of g-C3N4/ZnO composites and their enhanced photocatalytic activity | |
| Zhang et al. | Catalytic activity of binuclear transition metal phthalocyanines in electrolyte operation of lithium/thionyl chloride battery | |
| CN103524125B (en) | The processing method of preparation carbon black loadings cobalt zinc ferrite oxysome absorbing material | |
| CN103074533A (en) | Preparation method of uniform-hardness wear-resistant corrosion-resistant spraying material for thermal spraying | |
| CN104017210A (en) | Long-chain type metal coordination intumescent flame retardant and preparation method thereof | |
| CN105219346A (en) | Bio-based carried by nano carbon fiber vectolite absorbing material and preparation method thereof | |
| CN103866162B (en) | A kind of Ni based powder metallurgy superalloy with high CraCk extenslon reslstsnce | |
| CN102528018A (en) | Copper alloy powder for unleaded bimetallic bearing and preparation method of same | |
| CN107417921A (en) | The synthesis and application of a kind of metal organic framework compound | |
| CN103787330A (en) | Method for preparing activated carbon from apricot shells, pinecones and rice hulls | |
| CN105669186B (en) | The preparation method of high relative density low-resistivity tin indium oxide target material | |
| CN111439997B (en) | Zinc-aluminum oxide target material and preparation method thereof | |
| CN102276249B (en) | Method for increasing power frequency tolerance capability of ZnO lightningproof chip edge | |
| CN104388739B (en) | A kind of silver-colored wolfram varbide nickel contact material and preparation method thereof | |
| CN102774834A (en) | Method for preparing vinyl acetate supporter activated carbon from bamboo | |
| KR102003766B1 (en) | Method for manufacturing tantalum powder | |
| CN103130284B (en) | Method for producing nickel carbonyl powder from nickel hydroxide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20191224 |