The role of activated carbon in the pharmaceutical industry

Answers:0   |   LastUpdateAt:2021-06-10 18:42:24  

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Asked at 2021-06-10 18:42:24

The focus of the whole production process is the activation section. At the present stage, some domestic activated carbon production enterprises use air as the activation gas in the activation process. Although it is cheap and easy to get, the air used as the activation gas in the production of activated carbon has a high burning loss rate, low product yield and low finished strength of activated carbon particles.

The production of activated carbon by steam as activation gas has the advantages of low burning loss rate, high product yield and high strength of activated carbon particles.wood based activated carbon manufacturer 

This project adopts the production process, that is, is the use of water vapor is activated, at the same time set up at the end of the activation furnace waste heat boiler to extract the sensible heat, the boiler and could be used to provide the necessary activation water vapor activation furnace, the design in improving the utilization ratio of resources at the same time, reduce the pollutant emissions, reduces the project's impact on the environment during production process.https://www.dxdcarbon.com/  

Activation tail gas is treated and discharged by dust removal and desulfurization system after utilization. ⑴ Zinc chip ratio. Zinc chip ratio refers to the weight ratio of anhydrous zinc chloride to absolute raw wood chips. Zinc chip ratio has a decisive influence on the pore structure and adsorption properties of activated carbon. The pore structure of activated carbon is often adjusted by zinc chip ratio, which is the most important factor for the production of activated carbon by zinc chloride method.

⑵ The influence of raw material types. As a result of different species, wood resin content and hardness and other properties are different, thus the chemical penetration ability of wood chips have differences. Fir chips are usually the best, pine chips the next, and hard and miscellaneous chips the worst.

⑶ The moisture content of raw materials. The moisture content of the sawdust affects the rate of chemical penetration into the sawdust particles, thus affecting the impregnation time. When the moisture content of sawdust is more than 30%, the impregnation time is more than 8h. Generally, the moisture content of sawdust should not exceed 5%. According to the different production technology, the moisture content of sawdust has different specific indexes.

(4) the influence of wood particle size. When the particle size of wood chips in the production of powdered activated carbon is 6~40 mesh, the particle size of wood chips has no obvious effect on the product quality. The effect of sawdust particle size on product quality is related to the zinc chip ratio used. When the zinc chips are relatively small (such as 80%), the wear resistance and relative density of activated carbon decrease with the increase of sawdust size. When the size of zinc chip is large (e.g. 200%), the wood chip particle size is 0.25~2.0mm, and the wear resistance and relative density of activated carbon are not significantly affected 

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