Activation process of activated carbon

• Posted by Carrie Ge January 28, 2021 - Filed in Arts & Culture - 928 views

  At the beginning of the naming of activated carbon, people always thought that it has the ability of adsorption and decolorization because of "activity", and the activity is obtained by chemical reaction and heat treatment.  activated carbon saudi arabia The activated carbon is called activated carbon, and the process of making the carbon active is called activation.

   

  Activated carbon has a strong adsorption capacity, which mainly depends on its special microcrystalline structure, developed micropores, huge specific surface area, the main process of making activated carbon-activation process, so that the carbon has formed a porous microcrystalline structure and huge Specific surface area.

   

  There are three activation methods for activated carbon: chemical activation method, mixed activation method, and physical activation method (gas activation method).

   

  1. Chemical activation method: mixing carbon-containing raw materials with chemical activator, then carbonizing and activating to prepare activated carbon.

   

  1. Hybrid activation method: refers to the activation method that combines chemical activation and physical activation. Under normal circumstances, the method of chemical activation must be used first, and then physical activation. The product made by physical activation method, especially water vapor activation, has developed micropores and has good adsorption power for gas phase substances. Of course, it can also be used for liquid phase adsorption by controlling the activation degree of carbon; it is prepared by chemical activation method The activated carbon has developed sub-micropores and is mostly used for liquid phase adsorption.yrdcarbon.com

   

  1. Physical activation method (gas activation method): pass gas activator during activation, such as carbon dioxide, water vapor, air, etc.