shaman202 - 13-6-2011 at 09:56
I was wondering if anyone could help me figure out how to decolorize molasses or corn syrup using activted carbon. I don't know if i need to heat up
the syrup with the carbon in it or just let it sit or what type of carbon i should use. can anyone help me with this?
Ozone - 13-6-2011 at 10:21
Pack a jacketted-column with slurried GAC. Pre-heat the molasses to 65-70°C (see Langmuir asdorption isotherms for GAC) and pump it through your
column (rate depends on carbon size, surface area and column diameter) which is also at 65-70° (jacket). You can also run this through tandem or
mixed-bed ion exchangers to de-ash and remove additional color.
If it is not heated, you will not likely be able to pump it. Even if you could, the mass-transfer limitation will kill your adsorption/exchange
kinetics.
Cheers,
O3