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Method for preparing activated carbon from camellia seed waste residues

A technology for preparing activated carbon and camellia oleifera seed, which is applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of limited use range of activated carbon prices, and achieve high product performance-price ratio, excellent adsorption performance, and stable product quality Effect

Inactive Publication Date: 2013-11-27
JIANGHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high price of activated carbon prepared from coal, wood, etc. limits its scope of use.

Method used

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  • Method for preparing activated carbon from camellia seed waste residues
  • Method for preparing activated carbon from camellia seed waste residues
  • Method for preparing activated carbon from camellia seed waste residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Pulverizing and sieving camellia seed waste residue obtained from various camellia seed oil extraction plants to obtain camellia seed waste residue particles with a particle size of 0.125-2 mm, preferably 1 mm;

[0029] The camellia seed waste residue particles are heated to 550°C for 60 minutes at a heating rate of 10-20°C / min, preferably 12°C / min, for 60 minutes under an inert atmosphere, and cooled to room temperature to obtain a carbonized material of camellia seed waste residue;

[0030] According to the weight ratio of 1:1.5~3.5, preferably 1:2.5, impregnate the carbonized material of camellia seed waste residue obtained in the previous step in a potassium carbonate solution with a mass percentage concentration of 50%, stir evenly during the impregnation process, and impregnate at room temperature for 24 hours. Carry out dehydration treatment, and dry at 105 ℃ for 18 hours to form a mixture;

[0031] The prepared mixture is placed in a carbonization furnace, activ...

Embodiment 2

[0035] Pulverizing and sieving camellia seed waste residue obtained from various camellia seed oil extraction plants to obtain camellia seed waste residue particles with a particle size of 0.2-3 mm, preferably 2 mm;

[0036] Heat the camellia seed waste residue particles to 700°C for 30 minutes at a heating rate of 15-25°C / min, preferably 18°C / min, and perform pyrolysis for 30 minutes in an inert atmosphere, and cool to room temperature to obtain a carbonized material of camellia seed waste residue;

[0037] According to the weight ratio of 1:1.5~2.5, preferably 1:1.5, impregnate the carbonized material of camellia seed waste residue obtained in the previous step in a potassium carbonate solution with a mass percentage concentration of 30%, stir evenly during the impregnation process, and impregnate at room temperature for 20 hours. Carry out dehydration treatment and dry at 102°C for 16 hours to form a mixture;

[0038] The prepared mixture is placed in a carbonization furnac...

Embodiment 3

[0042] Pulverizing and sieving camellia seed waste residue obtained from various camellia seed oil extraction plants to obtain camellia seed waste residue particles with a particle size of 0.05-1.5 mm, preferably 1.2 mm;

[0043] Heat the camellia seed waste residue particles to 650°C for 60 minutes at a heating rate of 5-15°C / min, preferably 12°C / min, and perform pyrolysis for 60 minutes in an inert atmosphere, and cool to room temperature to obtain a carbonized material of camellia seed waste residue;

[0044] According to the weight ratio of 1:1.5~2, preferably 1:1.5, impregnate the carbonized material of camellia seed waste residue obtained in the previous step in a potassium carbonate solution with a mass percentage concentration of 50%, stir evenly during the impregnation process, and impregnate at room temperature for 24 hours. Carry out dehydration treatment, and dry at 108 ℃ for 18 hours to form a mixture;

[0045]The prepared mixture is placed in a carbonization furn...

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Abstract

The invention relates to a method for preparing activated carbon from camellia seed waste residues. The method comprises the following steps: by adopting a chemical activation method, enabling camellia seed waste residue particles to be subjected to pyrolysis in an inertia atmosphere; infusing carbonizing materials subjected to pyrolysis into an activating agent, uniformly stirring, and drying after infusion for a period at normal temperature; carrying out activation, washing and stoving in the inertia atmosphere, and then obtaining the activated carbon prepared by the camellia seed waste residues as raw materials. According to the invention, the prepared activated carbon is low in ash content, high in specific surface area, excellent in adsorptive property, stable in product quality and high in product performance-price ratio, and has a plenty of micropores and mesopores; when the method is adopted to prepare the activated carbon on a large scale, pyrolysis gas generated in the pyrolysis carbonizing phase can be used in the stoving process of the late stage of the activated carbon preparation; the preparation method and process conform to the principle of environment-friendly and resource-efficient utilization of wastes at present; the prepared activated carbon can be used for decolorization, purification and solvent recovery in the chemical industry, as well as gas absorption, separation, purification and the like in the environmental protection field.

Description

technical field [0001] The invention relates to a preparation process of activated carbon, in particular to a method for preparing activated carbon by utilizing camellia oleifera seed waste residue. Background technique [0002] Camellia oleifera is a kind of pure natural high-grade oil plant unique to our country, which grows in the mountains and hills of the southern subtropical region. Mainly concentrated in five provinces of Zhejiang, Jiangxi, Henan, Hunan and Guangxi. The fruit of Camellia oleifera tree - Camellia oleifera seeds can be used to extract edible tea oil. Camellia oil is a high-quality edible oil with clear taste and fragrance, rich nutrition and storage resistance; it can also be used in industry as lubricating oil and anti-rust oil; it can also be further processed into fine products such as nutritional health care products and skin care products, and its comprehensive utilization value is very high . Since the beginning of the 21st century, governments...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/12C01B32/324
Inventor 米铁余新明
Owner JIANGHAN UNIVERSITY
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