PROCESSES USING SOLID PERM-SELECTIVE MEMBRANES IN MULTIPLE GROUPS FOR SIMULTANEOUS RECOVERY OF SPECIFIED PRODUCTS FROM A FLUID MIXTURE

摘要

Apparatus is disclosed for economical separation of fluid mixtures. Broadly, apparatus of the invention comprises modules using solid perm-selective membranes. More particularly, the invention relates to a plurality of membrane modules disposed in a first product group, a second product group, and optionally one or more intermediate group. Apparatus of the invention with the membrane modules in multiple groups is beneficially useful for simultaneous recovery of a very pure permeate product and a desired non-permeate product from a mixture containing organic compounds.