Quoted answer from Alfa Laval:
" Q: Will the additives in the lube oil be destroyed with centrifugal separation?
A: No, the molecular alliance of the additives with the oil is stronger than the centrifugal force. "
I have an Alfa Laval Emmie, a 5000G, centrifugal separator. It's an amazing device and it will absolutely pull water, various common contaminates and bacteria from jet fuel with perfection. It can also bring aging gasoline back to life by removing the gums and varnishes. I tried it on used motor oil with poor results, (even when diluted with jet fuel) , despite the claims that it can effectively filter lube oil. It cannot pull carbon and soot out, as the density of carbon particulates is not sufficiently different from the motor oil. It removed some wear metals and water from used motor oil, but the soot remained entirely.
The centrifuge can only remove particulates and components that are more dense than the oil or fluid itself.