Porous activated carbon preparation method

Abstract

The invention relates to a porous activated carbon preparation method, which uses a porous activated carbon preparation device. The porous activated carbon preparation device comprises a workbench, a carbonization box, a discharging barrel, a covering mechanism, an overturning mechanism and an adjusting mechanism. Meanwhile, the activated carbon raw material in the discharging barrel is overturned by adopting the overturning mechanism, and the activated carbon raw material in the middle is overturned to the outer side to be uniformly heated, so that the activated carbon raw material after activation achieves a sufficient activation effect; the adjusting mechanism can adjust according to the temperature required by the activated carbon raw material, so that the carbonization treatment quality of the activated carbon raw material is guaranteed.

Description

technical field [0001] The invention relates to the technical field of porous activated carbon preparation, in particular to a preparation method of porous activated carbon. Background technique [0002] Porous activated carbon is a specially treated charcoal. Organic raw materials (husks, coal, wood, etc.) are heated under air-isolated conditions to reduce non-carbon components (this process is called carbonization), and then react with gas. It is eroded to produce a microporous structure (this process is called activation). Since the activation process is a microscopic process, that is, the surface erosion of a large number of molecular carbides is point-like erosion, so the surface of activated carbon has countless small pores. Activated carbon Most of the micropore diameters on the surface are between 2 and 50nm. Even a small amount of activated carbon has a huge surface area. The surface area per gram of activated carbon is 500 to 1500m2. Almost all applications of acti...

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Problems solved by technology

[0003] 1. When the common porous activated carbon is activated, the activated carbon raw material is directly poured into the heating box for heating. A large amount of activated carbon raw material is poured together, which makes it difficult for the raw material in the middle part of the activated carbon raw material to be fully heated, making the activated carbon after activation Raw materials are difficult to achieve sufficient activation effect;

[0004] 2. When activating activated carbon raw materials, activated carbon raw materials need to be activated in a sealed state. Since the sealing effect cannot be achieved, the activation effect of activated carbon raw materials is poor;

[0005] 3. The temperature of the activated carbon raw material is continuously rising and cannot be adjusted during the heating process, which makes it difficult to control the temperature of the activated carbon raw material during the carbonization process, making it difficult to guarantee the quality of the activated carbon raw material

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