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Preparation method of fast-growing eucalyptus bark activated carbon

A technology of fast-growing eucalyptus and activated carbon, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of natural environmental pollution, irrational use of biomass resources, etc., and achieve simple and convenient operation, good industrial application value, The effect of enriching the pore structure

Pending Publication Date: 2019-05-07
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of waste fast-growing eucalyptus bark produced every year is mostly disposed of by incineration. This extensive treatment method has caused great pollution to the natural environment and unreasonable use of biomass resources.

Method used

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  • Preparation method of fast-growing eucalyptus bark activated carbon
  • Preparation method of fast-growing eucalyptus bark activated carbon
  • Preparation method of fast-growing eucalyptus bark activated carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of fast-growing eucalyptus bark activated carbon, comprising steps as follows:

[0032] (1) Wash the eucalyptus bark, dry it, put it into a pulverizer and crush it into chips, and place it in a drying oven at 105°C for 12 hours at a constant temperature, cool to room temperature, and seal it for storage;

[0033] (2) Mix the eucalyptus bark treated in step (1) with a deionized aqueous solution of potassium pyrophosphate, soak for 12 hours, wash and then place in a drying oven at 105° C. for constant temperature drying for 12 hours to obtain a pretreated sample;

[0034] (3) Place the pretreated sample obtained in step (2) in a tube furnace, pyrolyze and carbonize it under a nitrogen atmosphere, cool it down to 200°C naturally, take it out, cool it to room temperature, wash it with deionized water until it is neutral, and place it at 105 ℃ drying oven, and grind to obtain the fast-growing eucalyptus bark activated carbon;

[0035] Wherein, in the st...

Embodiment 2

[0037] A preparation method of fast-growing eucalyptus bark activated carbon, comprising steps as follows:

[0038] (1) Wash the eucalyptus bark, dry it, put it into a pulverizer and crush it into chips, and place it in a drying oven at 105°C for 12 hours at a constant temperature, cool to room temperature, and seal it for storage;

[0039] (2) Mix the eucalyptus bark treated in step (1) with a deionized aqueous solution of potassium pyrophosphate, soak for 12 hours, wash and then place in a drying oven at 105° C. for constant temperature drying for 12 hours to obtain a pretreated sample;

[0040] (3) Place the pretreated sample obtained in step (2) in a tube furnace, pyrolyze and carbonize it under a nitrogen atmosphere, naturally cool down to 180°C, take it out, cool it to room temperature, rinse it with deionized water until it is neutral, and place it at 105 ℃ drying oven, and grind to obtain the fast-growing eucalyptus bark activated carbon;

[0041] Wherein, in the step...

Embodiment 3

[0043] A preparation method of fast-growing eucalyptus bark activated carbon, comprising steps as follows:

[0044] (1) Wash the eucalyptus bark, dry it, put it into a pulverizer and crush it into chips, and place it in a drying oven at 105°C for 12 hours at a constant temperature, cool to room temperature, and seal it for storage;

[0045] (2) Mix the eucalyptus bark treated in step (1) with a deionized aqueous solution of potassium pyrophosphate, soak for 12 hours, wash and then place in a drying oven at 105° C. for constant temperature drying for 12 hours to obtain a pretreated sample;

[0046] (3) Place the pretreated sample obtained in step (2) in a tube furnace, pyrolyze and carbonize it under a nitrogen atmosphere, naturally cool down to 150°C, take it out, cool it to room temperature, rinse it with deionized water until it is neutral, and place it at 105 ℃ drying oven, and grind to obtain the fast-growing eucalyptus bark activated carbon;

[0047] Wherein, in the step...

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Abstract

The invention belongs to the technical field of preparation of activated carbon by utilizing waste biomass, and particularly relates to a preparation method of fast-growing eucalyptus bark activated carbon. The preparation method comprises the following steps: (1) washing eucalyptus bark, airing, crushing, drying, and sealing for storing; (2) dipping the eucalyptus bark treated by the step (1), cleaning and drying to obtain a pretreated sample; and (3) carrying out pyrolysis carbonization on the pretreated sample obtained in the step (2), taking out, cooling to room temperature, washing, drying and grinding to obtain the fast-growing eucalyptus bark activated carbon. The activated carbon prepared by the preparation method disclosed by the invention has a relatively rich mesoporous structure and a surface functional group, the adsorption capacity is comparable with that of activated carbon prepared by other methods, and the preparation method disclosed by the invention is simple and convenient to operate and has relatively good industrial application value.

Description

technical field [0001] The invention belongs to the technical field of preparing activated carbon by using waste biomass, and in particular relates to a preparation method of fast-growing eucalyptus bark activated carbon. Background technique [0002] Activated carbon adsorbent has a huge specific surface area, developed pore structure, rich surface functional groups and excellent physical and chemical properties, and is widely used in soil, wastewater treatment, gas purification, electrode materials and catalyst supports and other fields. According to research reports, the raw materials of traditional commercial activated carbon are usually coal-based, such as lignite, bituminous coal, etc.; biomass-based activated carbon is usually made of wood, such as wood, bamboo, etc. Compared with activated carbon that uses coal-based raw materials, Biomass materials come from a wide range of sources and are cheap and easy to obtain. In recent years, due to the continuous reduction a...

Claims

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Application Information

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IPC IPC(8): C01B32/348C01B32/324
Inventor 刘峥韦梦琴冯庆革孙翔马大朝
Owner GUANGXI UNIV
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