Demulsification and extraction of biochemicals from raw materials and fractions using water and subcritical / supercritical carbon dioxide as a proton pump to adjust pH without precipitating oil components

摘要

A demulsification method for extracting surface active biochemicals from crude oil and its fractions when used as a feedstock during the production of biochemicals using precritical / supercritical CO2 as a proton pump. The method also includes a pH adjustment step, thereby causing demulsification and precipitation of the biochemical into the aqueous phase, but with the innate addition of a resin-like solvent derived from crude oil or biological resources, precipitation of asphaltenes. prevent. The biochemical is then extracted from the aqueous phase via a temperature change or some other technique.