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Porous high-flux activated carbon and preparation technology thereof

An activated carbon, high-throughput technology, applied in the field of air purification substances, can solve the problems of cumbersome maintenance of activated carbon equipment and increase maintenance costs, and achieve the effects of reducing replacement frequency, increasing service life, and enhancing deodorization ability.

Inactive Publication Date: 2018-09-14
SHENZHEN ZHONGJIAN NANFANG ENVIRONMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the adsorption capacity is large or long-term adsorption is required, due to the limitation of the service life of activated carbon, it is often necessary to replace the activated carbon frequently, resulting in cumbersome maintenance of activated carbon equipment and increased maintenance costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Crush the chestnut shell into 2mm powder, and dry it in a microwave oven for 10 minutes;

[0027] (2) Take a certain amount of the above-mentioned powder, put it into a carbonization furnace, and carbonize it at 500 ° C for 2 hours to obtain activated carbon from shells, and crush the activated carbon from shells to a particle size of 0.035mm

[0028] (3) Dry the apple peel of 1 mass part as a modified raw material, and pulverize it to form a fine powder with a particle size of 7 μm;

[0029] (4) Mix fine powder and 1 mass part of activated carbon evenly, and place in an activation furnace at a temperature of 550° C. and a pressure of 0.2 MPa, heat for 20 minutes, and perform an activation reaction to obtain an activation material;

[0030] (5) The activated material was rinsed with distilled water and dried in an oven at a temperature of 100°C for 3 hours to finally prepare porous high-throughput activated carbon.

Embodiment 2

[0032] (1) Crush the coconut shell into 2mm powder, and dry it in a microwave oven for 10 minutes;

[0033] (2) Take a certain amount of the above-mentioned powder, put it into a carbonization furnace, and carbonize it at 500 ° C for 2 hours to obtain activated carbon from shells, and crush the activated carbon from shells to a particle size of 0.04mm

[0034] (3) Dry the potato skins of 1 mass part as a modified raw material, and pulverize to form a fine powder with a particle size of 5 μm;

[0035] (4) Mix the fine powder and 1 mass part of activated carbon evenly, and place them in an activation furnace at a temperature of 650° C. and a pressure of 0.2 MPa, heat for 30 minutes, and perform an activation reaction to obtain an activation material;

[0036] (5) Rinse the activated material with distilled water and dry it in an oven at a temperature of 120°C for 3 hours to finally prepare a porous high-throughput activated carbon.

Embodiment 3

[0038] (1) Crush the chestnut shell into 2mm powder, and dry it in a microwave oven for 10 minutes;

[0039] (2) Take a certain amount of the above-mentioned powder, put it into a carbonization furnace, and carbonize it at 500 ° C for 2 hours to obtain activated carbon from shells, and crush the activated carbon from shells to a particle size of 0.035mm

[0040] (3) Dry the apple peel of 1 mass part as a modified raw material, and pulverize it to form a fine powder with a particle size of 7 μm;

[0041] (4) Mix the fine powder, 1 mass part of activated carbon and 1 mass part of potassium hydroxide aqueous solution evenly, and place them in an activation furnace at a temperature of 550°C and a pressure of 0.2 MPa, heat for 20 minutes, and perform an activation reaction to obtain activated material;

[0042] (5) Wash the above-mentioned activated material with hydrochloric acid until the pH value is 7, and dry it in an oven at 100° C. for 3 hours to finally prepare porous high-...

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Abstract

The invention relates to the field of air purification substances, and specifically relates to porous high-flux activated carbon and a preparation technology thereof. The porous high-flux activated carbon is prepared by mixing 1-1.5 parts by mass of activated carbon and 1-4 parts by mass of modified raw materials, wherein the modified raw materials relates to at least one of melon and fruit peelsand root vegetable skins. The melon and fruit peels and root vegetable skins are added as raw materials to modify the activated carbon, so that the porous high-flux activated carbon has larger specific surface area and higher porosity than existing activated carbon, thereby having stronger adsorption capacity, longer service life, and being replaced less frequently. Compared with chemical modifiers, the melon and fruit peels and root vegetable skins as pure natural raw materials have advantages of safety and environmental friendliness and no pollution, and have natural fragrance, thereby further improving the deodorizing performance of the porous high-flux activated carbon.

Description

technical field [0001] The invention relates to the field of air purification materials, in particular to porous high-throughput activated carbon and its preparation technology. Background technique [0002] Activated carbon material is amorphous carbon obtained through processing, has a large specific surface area, and has good adsorption capacity for gases, inorganic or organic substances in solution, and colloidal particles. Activated carbon material has stable chemical properties, high mechanical strength, acid resistance, alkali resistance, heat resistance, insoluble in water and organic solvents, and can be recycled. It has been widely used in chemical industry, environmental protection, food processing, metallurgy, pharmaceutical refining, military chemical protection and other fields. [0003] The specific surface area of ​​unmodified activated carbon is generally 400-800, and that of shell activated carbon is slightly higher, 600-1000. However, when the adsorption...

Claims

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Application Information

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IPC IPC(8): C01B32/354C01B32/36
CPCC01P2006/12
Inventor 温梅梅段超赵汉伟严斌
Owner SHENZHEN ZHONGJIAN NANFANG ENVIRONMENT CO LTD
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