Mesopore activated carbon fiber and manufacturing method thereof

A technology of activated carbon fiber and production method, which is applied in the direction of fiber chemical characteristics, textiles and papermaking, etc., can solve the problems of poor adsorption performance and unsatisfactory adsorption performance, and achieve the effect of large mesopore ratio, easy operation and unique production process

Active Publication Date: 2010-09-08
JIANGSU TONGKANG SPECIAL ACTIVATED CARBON FIBER &GARMENTS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] The adsorption pores on the surface of the existing activated carbon fibers are mainly micropores with a diameter less than 2nm, and their adsorption performance is not good, especially for large particles, the adsorption performance is obviously not ideal

Method used

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  • Mesopore activated carbon fiber and manufacturing method thereof
  • Mesopore activated carbon fiber and manufacturing method thereof

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Embodiment Construction

[0011] A method for producing mesoporous activated carbon fibers, comprising the steps of impregnation, extrusion, drying, carbonization, and activation. During carbonization, the low-temperature heat treatment furnace starts to heat up from 180°C, and the temperature is raised by 8°C per minute, and the temperature is raised to 300°C, and then the temperature is kept at 20°C. After a few minutes, the temperature was raised to 320°C, and then cooled until the temperature was lower than 100°C, and the inlet and outlet of the low-temperature heat treatment furnace were sealed with nitrogen gas.

[0012] During the activation treatment, start the high-temperature activation furnace from 400°C, raise the temperature by 10°C per minute, raise the temperature to 850°C, then keep the temperature for 10 minutes, spray steam at the same time, then dry the fiber at 850°C, and cool it after 5 minutes. Blanket with nitrogen.

[0013] The obtained mesoporous activated carbon fiber comprise...

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PUM

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Abstract

The invention discloses mesopore activated carbon fiber and a manufacturing method thereof. The product comprises fiber body; the surface of the fiber body is provided with adsorbing holes; part of mespores with 2-20nm of bore diameter of exist in the adsorbing holes; the specific area of the fiber body is 1500-1700cm2/g; the gross capacity of the adsorbing holes are 0.8-1cm2/g; the volume of the middle holes is 0.3-0.4cm2/g; and the manufacturing method comprises the steps of dipping, extruding, drying, charring and activating. The product has reasonable structure, big mespore proportion, good adsorption effect, stable quality, unique productive technology and easy operation.

Description

Technical field: [0001] The invention relates to an activated carbon fiber and a production method thereof. Background technique: [0002] In the existing activated carbon fibers, the adsorption pores on the surface are mainly micropores with a diameter less than 2nm, and the adsorption performance is not good, especially for large particles, the adsorption performance is obviously not ideal. Invention content: [0003] The object of the present invention is to provide a mesoporous activated carbon fiber with reasonable structure, large adsorption hole diameter and good adsorption performance and its production method. [0004] Technical solution of the present invention is: [0005] A mesoporous activated carbon fiber, including a fiber body, is characterized in that: adsorption holes are arranged on the surface of the fiber body, the middle part of the adsorption holes is a mesopore with a pore diameter of 2-20 nm, and the specific surface area of ​​the fiber body is 15...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/12
Inventor 周茅峰
Owner JIANGSU TONGKANG SPECIAL ACTIVATED CARBON FIBER &GARMENTS
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