Lipid removal from suspensions

摘要

In a process for extracting lipids from aqueous suspensions of biomass, especially from digested algal suspensions, using water-immiscible solvents, the algal suspension with an algal content of 50% by weight is supplied continuously to a thin-film extruder and contacted as a thin film with the solvent present in the liquid or supercritical state in the thin-film extractor, and then the solvent is recovered by expanding the solution composed of solvent and lipids, and the extracted lipids are removed.