Production of low alcoholic content beverages
AssigneeAllied Corporation
InventorWilliam G. Light
Life of this patent
Estimating the term…
Abstract
Low alcohol content beverages may be obtained by passing a high alcohol content beverage through a reverse osmosis system to form a permeate and a retentate. The permeate comprising mainly alcohol and water is removed. A minor portion of the retentate is recovered as product while a major portion of the retentate is recycled back to the reverse osmosis system to admix with fresh beverage and added water.
Claims14
A continuous feed and bleed process for the diminution of the alcoholic content of an alcoholic beverage which comprises passing a mixture of water and said beverage from a reservoir containing same across a semipermeable membrane, said membrane possessing a chloride ion rejection greater than 97% at 400 psi net pressure and displaying a permeation rate for alcohol that is dependent on net pressure for low net pressure and that is essentially independent of net pressure for high net pressure, at separation conditions including net pressure of from about 50 to about 250 psi to form a permeate comprising alcohol and water, and a retentate comprising said beverage containing a reduced alcoholic content, removing said permeate, recycling a portion of said retentate to admix with added fresh alcoholic beverage and water prior to contact with said semipermeable membrane to form a feed admixture, the portion of said retentate which is recycled comprising from about 80 to about 99% of said retentate, with the portion of the retentate which is not recycled being recovered as a product.
Dependencies are inferred from the claim text.