Processes using solid perm-selective membranes in multiple groups for simultaneous recovery of specified products from a fluid mixture

The present invention relates to novel processes for separation of fluid mixtures. Broadly, intergrated processes of the invention comprise a plurality of separations using solid perm-selective membranes. More particularly, the invention relates to recovery of specified products using a plurality of membrane modules disposed in a first product group, a second product group, and optionally one or more intermediate group. Processes of the invention with the membrane modules in multiple groups are beneficially useful for simultaneous recovery of a very pure permeate product and a desired non-permeate product from a mixture containing organic compounds. Economical processes of the present invention are for separation of fluid mixtures to recover desired products using apparatus comprising a plurality of membrane modules disposed in a first product group, a second product group, and optionally one or more intermediate group. Advantageously integrated processes of the invention with the membrane modules in multiple groups are employed for simultaneous recovery of a very pure permeate product and a desired non-permeate product from a mixture containing organic compounds.