Mixed substrate biomass activated carbon and preparation method thereof

A biomass charcoal, biomass technology, applied in the fields of carbon compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of limited production and application effect of biomass activated carbon products, unable to meet market demand, etc., and achieve effective wastewater treatment. route, superior adsorption performance, and the effect of short regeneration cycle

Inactive Publication Date: 2019-01-04
WUHAN UNIV
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Problems solved by technology

However, limited by the source of raw materials such as husks, the production and application effects of biomass activated carbon products are currently limited, which is far from meeting market demand.

Method used

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  • Mixed substrate biomass activated carbon and preparation method thereof
  • Mixed substrate biomass activated carbon and preparation method thereof
  • Mixed substrate biomass activated carbon and preparation method thereof

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Embodiment Construction

[0029] The features and advantages of the present invention can be further understood through the following detailed description in conjunction with the accompanying drawings. The examples provided are only illustrative of the method of the present invention and do not limit the rest of the present disclosure in any way.

[0030] Grapefruit peel and walnut shell are used as raw materials, phosphoric acid is used as an activator, the mixed raw materials are soaked in the activator and then dried, put into a muffle furnace for pyrolysis, the product is washed with distilled water until the filtrate is neutral, dried, cooled, Store in a desiccator after sieving. Phosphoric acid as an activator in the high-temperature pyrolysis stage fully exerts its microscopic pore-forming effect. On the one hand, phosphoric acid disperses in the biochar precursor, immerses in its interior, and washes out phosphoric acid after activation to leave pores in the activated carbon; on the other hand,...

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Abstract

The invention discloses mixed substrate biomass activated carbon and a preparation method thereof. By adopting the method, shaddock peel and walnut shells are mixed in a mass ratio of 3:7 to prepare an activated carbon precursor, and by using a chemical activation method, an activator is added to carry out high-temperature pyrolysis, and thus the novel mixed substrate biomass activated carbon is prepared. Compared with biomass activated carbon which is prepared from single raw materials, and commercial activated carbon, the prepared mixed substrate biomass activated carbon has excellent adsorption properties, and the novel mixed substrate biomass activated carbon is capable of making up defects of an activated carbon precursor which is prepared from single raw materials, and has certain commercial values. Meanwhile, by adopting the preparation scheme, a new idea is provided for environmental-friendly utilization of biomass wastes.

Description

technical field [0001] The invention belongs to the field of activated carbon preparation, in particular to a mixed-based biomass activated carbon and a preparation method thereof. Background technique [0002] Activated carbon has excellent adsorption performance due to its well-developed pore structure and large surface area, and its physical and chemical properties are stable, and it has good cycle regeneration. Therefore, activated carbon is widely used in the field of liquid and gas purification, and the consumption is large. However, the traditional raw materials for activated carbon preparation are generally non-renewable resources with limited reserves such as petroleum, coking coal, pitch and wood. Under the situation of global resource shortage, the traditional preparation method is obviously not conducive to the sustainable development of the environment. On the other hand, high-quality activated carbon is expensive and has low regeneration efficiency, which seri...

Claims

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Application Information

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IPC IPC(8): C01B32/324C01B32/342
CPCC01B32/324C01B32/342
Inventor 谭观成周静颖
Owner WUHAN UNIV
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