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Preparation method for biomass activated carbon

A technology of activated carbon and biomass, applied in chemical instruments and methods, carbon compounds, petroleum industry, etc., can solve the problems of environmental pollution, waste of resources, etc., and achieve the effect of simple operation, easy control of conditions, and widening sources

Inactive Publication Date: 2019-09-20
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current treatment methods are mainly landfill and incineration, which not only pollutes the environment, but also causes serious waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of preparation method of biomass activated carbon, its concrete steps are as follows:

[0025] S1: Grinding raw materials: prepare the camphor leaves used in the experiment, and use distilled water to thoroughly remove dust particles for the first cleaning, then dry at 105°C for 12 hours, put them into a grinder for crushing, and screen to obtain raw material particles of 50-100 mesh ;

[0026] S2: Preparation solution: After stirring and mixing ammonia or sulfuric acid with water, pour it into a three-necked flask and add the raw materials, condense and reflux in the water bath for a certain period of time, and the components of the ammonia impregnation solution are 35% of water and 65% of ammonia %, mix the processed raw materials with the prepared impregnation solution, heat in a water bath for 12 hours at a temperature of 60°C, and dry in a constant temperature drying oven at 105°C for 12 hours after suction filtration to obtain pretreated biomass raw materia...

Embodiment 2

[0041] A kind of preparation method of biomass activated carbon, its concrete steps are as follows:

[0042] S1: Grinding raw materials: prepare the camphor leaves used in the experiment, and use distilled water to thoroughly remove dust particles for the first cleaning, then dry at 105°C for 12 hours, put them into a grinder for crushing, and screen to obtain raw material particles of 50-100 mesh ;

[0043] S2: Prepare the solution: Prepare the impregnating solution by adding water and concentrated sulfuric acid, in which water accounts for 20% and sulfuric acid accounts for 80%. Mix the processed raw materials with the prepared impregnating solution, and at a temperature of 90°C, Heated in a water bath for 3 hours, and dried in a constant temperature drying oven at 105°C for 12 hours after suction filtration to obtain pretreated biomass raw materials;

[0044] S3: Carbonization treatment: Put the dried raw material into a high-temperature fixed bed for carbonization reactio...

Embodiment 3

[0058] A kind of preparation method of biomass activated carbon, its concrete steps are as follows:

[0059] S1: Grinding raw materials: Prepare the walnut shells used in the experiment, use distilled water to thoroughly remove dust particles for the first cleaning, then dry at 105°C for 12 hours, put them into a grinder for crushing, and screen to obtain raw material particles of 50-100 mesh;

[0060] S2: Preparation solution: After stirring and mixing ammonia water or sulfuric acid with water, pour it into a three-necked flask and add the raw materials, condense and reflux in the water bath for a certain period of time, and the components of the ammonia impregnation solution are 25% of water and 75% of ammonia %, mix the processed raw materials with the prepared impregnation solution, heat in a water bath for 12 hours at a temperature of 60°C, and dry in a constant temperature drying oven at 105°C for 12 hours after suction filtration to obtain pretreated biomass raw material...

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PUM

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Abstract

The invention relates to the field of preparation of activated carbon, specifically to a preparation method for biomass activated carbon. The preparation method comprises the following concrete steps: S1, pulverizing of raw materials; S2, preparation of a solution; S3, carbonization treatment; S4, activation treatment; and S5, drying treatment. All the raw materials used in the invention are biomass waste; the biomass waste that is usually discarded at ordinary times is subjected to a series of physical and chemical changes to turn the biomass waste into activated carbon which can be used by people; carbon monoxide and methane syngas are produced during experiments, and the methane syngas can be collected through exhaust gas collection and used as clean energy; the preparation of the biomass activated carbon broadens the sources of raw materials for preparation of the activated carbon, provides a basis for the subsequent research of biomass raw materials, and is of great significance to multi-directional and high value-added utilization of biomass waste; and the preparation method is simple to operate, and conditions are easy to control.

Description

technical field [0001] The invention relates to the field of preparing activated carbon, in particular to a preparation method of biomass activated carbon. Background technique [0002] With the rapid development of my country's economy, agriculture and light industry produce about hundreds of millions of tons of different types of biomass waste every year. The current treatment methods are mainly landfill and incineration, which not only pollutes the environment, but also causes serious waste of resources. The high-value comprehensive utilization of these industrial biomass wastes is of great significance to optimize industrial production processes and techniques, promote energy conservation and emission reduction, and increase economic benefits. [0003] Activated carbon has the advantages of developed internal pore structure, large specific surface area, and strong adsorption capacity. As a traditional material and a major industrial product, activated carbon is widely u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/348C01B32/342C01B32/324C10L3/08
CPCC10L3/08C01B32/324C01B32/342C01B32/348
Inventor 刘欢唐定兴巢旭李芳魏学岭张荣莉霍朝飞李兴扬任一鸣
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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