have you looked at any of the threads in the
Solvent Recovery - Future4200 category?
or searched for “ethanol recovery”?
how much solvent are you trying to recover?
how many lbs of biomass does each gallon of solvent see?
(see Bucket Tek (Cold Ethanol Extraction on a Budget) or EHO Color Remediation - #234 by Renchi if that question doesn’t make sense).
maybe even check out Who is king of EToH Recovery?