Activated Carbon
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Basics
- Any form of high purity elemental carbon processed to have high porosity
- Used as a more efficient/dense chemical filter/reactor compared to standard carbon sources such as charcoal
- Can be produced by high temperatures, medium temperatures and steam, or chemicals
- Made with Calcium Chloride - [1]
- Source material is usually charred wood (charcoal) or some form of coal (coke or raw coal)
- We will be dealing with charcoal so most work is documented on Activated Charcoal
OSE Work
- Based of this and other research
- Use in Bioreactors , Anerobic Digesters , WWT , and PBRs as a high surface area additive for aiding sludge / biofilm development
- Use in chemical reactors, and in Fluidized Bed Reactors
- Can it replace Zeolite in applications where carbon is of no isse (granted out that may leave out most reactions...)
- On a side note Metal Sputtering etc may "seal" the carbon off effectively?
- Use as enhanced Biochar
Re-Use/Recycling
- The main issue is how it can absorb and be saturated pre use
- Esentially meaning it is "regular" carbon/charcoal on arrival, and thus inefficient (bad in casual use, may mess up equipment, or cause more pollution in serious use)
- Also eventually it will need to be swapped out and/or regenerated
- Thus to close the Product Ecology we need to plot this out
- Relevant Section of the Wikipedia Page
Methods
- Thermal
- Liquid Chemical Washing
Disposal via Use in Other Applications
- Can be used for Tera Preta / Biochar
- Can be used as a Biofuel (similar to Charcoal , Charcoal Pellets , or Charcoal Dust
- GRANTED this may require washing of absorbed pollutants etc?
Reactivation
- This is the preffered option, as it saves transport of new material in, although some methods may be heat/electricity intensive (commercial vs home needs etc need to be evaluated)
- It can be device integrated, a seperate onsite device, or at a seperate dedicated facility
Device Integrated
- The preffered option for medium scale (not home use, but not massive industry, thus most of ose?)
- Thermal Reactivation Seems to be the Best Option?
- Can be done with waste heat, or electric heat (induction even if a metal container is used)
- Need to research temps needed, and gasses in/out
- The optimal setup for this would be similar to PSA in that it would need to have at least 2 devices, for uninterupted use
- Similar to a RTO as heat recovery may be reusable thus improving efficiency
Onsite Device
- A Scaled down version of a dedicated facility's equipment
- Most likely would be industrial furnaces/dryers etc
Seperate Dedicated Facility
- Most likely would be large industrial furnaces/dryers etc