What is important for the purification of alcohol as regards carbon pores
What is important for the purification of alcohol as
regards carbon pores:
1. The size of the pores in the carbon at the molecule level
2. What use one makes of the different carbon pores
Carbon pores consist of:
2. Meso pores with a radius of 1-25 nm (medium pores)
3. Macro pores with a radius larger than 25 nm (large pores)
Large pores are used for the transport of liquid through the carbon, and absorption occurs in the medium and small pores. Pores are formed during the manufacturing process, when the carbon is activated. The activation basically means that pores are created in a non-porous material by means of chemical reactions.
There are two different methods for this and they produce totally different pore structures:
1. Chemical activation
The large macro pores act as channels through the carbon to the meso- and micro pores
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