different Activated carbon manufacturer about Activated carbon There are different standards for classifying, so how can we classify them?

　　1、 According to the source of raw materials, it can be divided into wooden activated carbon (such as Coconut shell activated carbon , apricot shell activated carbon, wood powdered carbon, etc.), mineral raw material activated carbon (activated carbon made from various coals, petroleum and their processing products), and activated carbon made from other raw materials (such as activated carbon made from waste rubber, waste plastics, etc.).

2. According to the manufacturing method, it can be divided into physical activated carbon (physical carbon) and chemical activated carbon (chemical carbon)

The method of preparing activated carbon by mixing carbon containing raw materials with some chemicals for heat treatment is called chemical method. Activated carbon produced by chemical method is also called chemical activated carbon or chemical carbon.

Chemicals that can be used as chemical methods are also called activators. The activators include zinc chloride, calcium chloride, potassium carbonate, phosphoric acid, potassium dihydrogen phosphate, potassium sulfide, sulfuric acid, potassium hydroxide, sodium hydroxide, boric acid, etc. In short, many acids, alkalis, and salts can be used as activators. What kind of activator should be used mainly from the performance and economy of activated carbon.

Generally speaking, secondary micropores and mesopores (i.e. pores with pore diameter or pore width greater than 1.5 nm) are developed in the pores of chemical carbon, which are mainly used for gas-phase (vapor) adsorption occasions of liquid phase adsorption refining and solvent recovery.

Due to the addition of chemicals in the chemical manufacturing of activated carbon, great attention should be paid to environmental protection during the manufacturing process, as well as the impact of trace elements brought in by non raw materials in the product.

(1) Physical activated carbon

Using carbon as raw material, steam, carbon dioxide, air (mainly oxygen) or their mixture (flue gas) as activation medium, and activating at high temperature (600-1000 ℃), the method of preparing activated carbon is called physical method. The activated carbon produced by physical method is called physical activated carbon, also called physical carbon.

Generally speaking, physical carbon has developed micropores (pores with pore diameter or pore width less than 1.5 nm), which are mainly used for gas-phase adsorption or small molecule liquid phase adsorption.

(2) Chemical physical method or physical chemical method activated carbon

While understanding chemical carbon and physical carbon, chemical physical method or physical chemical method activated carbon should also be mentioned. The pore structure of activated carbon can be regulated by using different raw materials and different combinations of chemical and physical methods, so as to produce many activated carbon with different properties. This kind of chemical physical method or physical chemical method is the active carbon preparation method that has been paid great attention by active carbon workers all over the world for many years and for a long time to come.

These classification experiences are all summarized by activated carbon manufacturers in long-term practice, and I hope they can help you.