Membrane-based washing and deacidification of oils
OwnerNikolai Kocherginksyinventor
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Abstract
Membrane-based method of washing and deacidification of oils, wherein a stream of oil is conveyed from an oil reservoir along one side of porous hydrophobic membrane, and washing aqueous solution is conveyed along another side of this membrane. The membranes form hollow fibers, and their total surface area and porosity are large enough for efficient removal of fatty acids, water, ions and hydrophilic organic impurities from oil. Membrane pore size is small enough, so that hydrodynamic mixing of oil and aqueous solution does not take place. Additional stabilization of oil/water meniscus in the pores is achieved by transmembrane pressure difference.
Claims10
A membrane-based oil washing process to remove an excess of emulsified water, metal ions, water-soluble colored and smelly impurities, and fatty acids, comprising:
- a hollow fiber membrane module through which a flow of an oil solution and a flow of an aqueous solution are separated by one or more membranes of the hollow fiber membrane module.
Dependencies are inferred from the claim text.