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Using plain old BBQ charcoal instead of "carbon"
- Thread starter Danny
- Start date
Hello,
There is little benefit to the use barbecue charcoal. Although it may be the same material in some cases, it is not activated. The activation of charcoal is what generates the extremely high surface area which allows the high adsorption efficiencies.
Activation is accomplished using high temperature steam often in excessof 1000 deg.C or with other gasses such as CO2 or Oxygen, which essentially bores out tiny holes within the charcoal structure. This greatly increases the number of adsorption sites per unit volume. Charcoal activated in this manner will have anywhere from 500-1500 square meters per gram of material of adsorption area. Activation can also be accomplished using chemical means, such as with strong acids.
Cheers,
There is little benefit to the use barbecue charcoal. Although it may be the same material in some cases, it is not activated. The activation of charcoal is what generates the extremely high surface area which allows the high adsorption efficiencies.
Activation is accomplished using high temperature steam often in excessof 1000 deg.C or with other gasses such as CO2 or Oxygen, which essentially bores out tiny holes within the charcoal structure. This greatly increases the number of adsorption sites per unit volume. Charcoal activated in this manner will have anywhere from 500-1500 square meters per gram of material of adsorption area. Activation can also be accomplished using chemical means, such as with strong acids.
Cheers,
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