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Palm activated carbon fiber and preparation method and application thereof

A technology of activated carbon fiber and palm fiber, which is applied in the direction of fiber chemical characteristics, chemical instruments and methods, carbon compounds, etc., can solve the problems of heating equipment energy consumption, large amount of protective gas, cumbersome operation steps, and increased preparation costs, so as to avoid The effect of equipment corrosion and environmental pollution, simple preparation process and fast preparation speed

Inactive Publication Date: 2018-06-12
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned background technology adopts two steps to prepare the product, that is, the method of first carbonizing the product and reactivating it, and setting the heating temperature for the second time at the beginning of the activation. This traditional two-step method leads to heating the product twice, and the operation steps More cumbersome, longer preparation time, higher energy consumption of heating equipment and larger amount of protective gas, which increases the preparation cost

Method used

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  • Palm activated carbon fiber and preparation method and application thereof
  • Palm activated carbon fiber and preparation method and application thereof
  • Palm activated carbon fiber and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Present embodiment provides a kind of preparation of palm activated carbon fiber, comprising:

[0030] (1) Wash the palm fiber with distilled water, remove the surface dust, and then put it in a constant temperature blast drying oven at 103±2°C for 24 hours;

[0031] (2) Heat the cleaned and dried palm fiber from room temperature to 700°C at a heating rate of 4°C / min, and keep it at 700°C for 60 minutes. The whole process is in a nitrogen gas atmosphere, and the flow rate of nitrogen gas is 200mL / min, feed water vapor while keeping warm, the water vapor flow rate is 3g / min, after the heat preservation finishes, cool down to room temperature naturally, and make palm activated carbon fiber.

[0032] Adopt the Autosorb-1 nitrogen adsorption instrument that Quantachrome instrument company provides, the nitrogen adsorption-desorption curve figure that obtains (see figure 1 ), the specific surface area of ​​the palm activated carbon fiber that adopts multi-point BET method ...

Embodiment 2

[0034] Present embodiment provides a kind of preparation of palm activated carbon fiber, comprising:

[0035] (1) Wash the palm fiber with distilled water, remove the surface dust, and then put it in a constant temperature blast drying oven at 103±2°C for 24 hours;

[0036] (2) Heat the cleaned and dried palm fiber from room temperature to 800°C at a heating rate of 4°C / min, and keep it at 800°C for 20 minutes. The whole process is in a nitrogen gas atmosphere, and the flow rate of nitrogen gas is 200mL / min, feed water vapor while keeping warm, the water vapor flow rate is 3g / min, after the heat preservation finishes, cool down to room temperature naturally, and make palm activated carbon fiber.

[0037] Adopt the Autosorb-1 nitrogen adsorption instrument that Quantachrome instrument company provides, the nitrogen adsorption-desorption curve figure that obtains (see figure 2 ), the specific surface area of ​​the palm activated carbon fiber that adopts multi-point BET method...

Embodiment 3

[0039]Present embodiment provides a kind of preparation of palm activated carbon fiber, comprising:

[0040] (1) Wash the palm fiber with distilled water, remove the surface dust, and then put it in a constant temperature blast drying oven at 103±2°C for 24 hours;

[0041] (2) Heat the cleaned and dried palm fiber from room temperature to 800°C at a heating rate of 4°C / min, and keep it at 800°C for 40 minutes. The whole process is in a nitrogen gas atmosphere, and the flow rate of nitrogen gas is 200mL / min, feed water vapor while keeping warm, the water vapor flow rate is 3g / min, after the heat preservation finishes, cool down to room temperature naturally, and make palm activated carbon fiber.

[0042] Adopt the Autosorb-1 nitrogen adsorption instrument that Quantachrome instrument company provides, the nitrogen adsorption-desorption curve figure that obtains (see image 3 ), the specific surface area of ​​the palm activated carbon fiber that adopts multi-point BET method t...

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Abstract

The invention relates to a palm activated carbon fiber with high specific surface area and a preparation method and application thereof. The specific surface area of the palm activated carbon fiber is800 to 1700m<2> / g, preferably 809 to 1680m<2> / g; the total pore volume is 0.450 to 1.20cc / g, preferably 0.486 to 1.181cc / g. By adopting the treatment modetype, the prepared palm activated carbon fiber has the advantages that the specific surface area and total pore volume are larger; the preparation process is simple, the preparation speed is highquick, the cost is low, the adding of chemical reagent is avoided in the preparation process, the safety of a product is improved, the occurrence of adverse effects, such as corrosion to equipment and pollution to environment, are avoided, and the palm activated carbon fiber can be widely applied to the fields of environmental protection, electronics, medical sanitation, chemical engineering and the like.

Description

technical field [0001] The invention relates to a palm activated carbon fiber and its preparation method and application, belonging to the technical field of activated carbon fiber preparation. Background technique [0002] As a promising carbon nanoporous material with well-defined pore structure, activated carbon fiber is mainly prepared by pyrolysis of carbonaceous materials followed by activation treatment. Compared with traditional powdery and granular activated carbon adsorption materials, activated carbon fibers have the advantages of high specific surface area, large adsorption capacity, developed pore structure, fast adsorption and desorption speed, etc., and are widely used in air purification, wastewater treatment, catalyst carrier, electrode materials, etc. [0003] Generally, the precursors for commercially preparing activated carbon fibers mainly come from pitch, polyacrylonitrile, viscose fiber and phenolic resin. However, with the depletion of fossil resour...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/336D01F9/16
CPCD01F9/16
Inventor 李超林剑赵广杰
Owner ZHEJIANG SCI-TECH UNIV
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