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Coal Impregnated Activated Carbon

‌Coal-impregnated activated carbon is a specially treated carbon material with a developed pore structure and a large specific surface area, which is mainly used for a variety of applications such as adsorption and catalysis. The preparation of coal-impregnated activated carbon usually involves heating and carbonizing organic raw materials (such as coal) under air-tight conditions, and then reacting with gases to form a microporous structure. This treatment process increases the adsorption capacity and chemical stability of activated carbon.

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Application:

Coal-impregnated activated carbon has a wide range of applications, mainly in sewage treatment, flue gas treatment, electrode materials, etc. It can also be used to protect against toxic gases, remove impurities, catalytic reactions, etc. For example, activated carbon impregnated with NAOH is used to protect against poisonous gases, activated carbon impregnated with zinc salts is used to remove nitrogen, and activated carbon impregnated with iodine compounds is used to remove hydrogen sulfide and radioactive gases, etc.

Features:

The preparation methods of coal-impregnated activated carbon mainly include chemical activation and physical activation. Chemical activation is achieved by impregnating the raw materials with chemicals (such as alkaline solutions such as potassium hydroxide and sodium hydroxide), followed by pyrolysis and activation; physical activation is achieved by physical means (such as steam, carbon dioxide, etc.). These processes give the activated carbon surface countless tiny pores, which greatly increases its surface area and adsorption capacity.