David,
Unfortunately the only way to purify it properly and get an
absolutely pure product is with distillation. Commercial processors use
other screening and filtering processes such as fullers earth which gets rid
of some of the gunk but to get it really pure they still need distillation.
Unfortunately this type of process really needs to be done on a commercial
scale to make it truly viable.
B.r., David
> Does anyone know a process that can be
> used to purify the glycerin produced in the
> biodiesel reaction into a pure or high grade
> glycerol ? High grade glycerol has a much
> better market value than the crude ( 80-88% )
> glycerin you get with standard biodiesel recipes.
> Any help on this would be greatly appreciated.
>
> Thanks,
> David Cruse
> Atlanta, Georgia metro area
Biofuel at Journey to Forever:
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