Two-stage membrane process and apparatus

Details Two-stage membrane process and apparatus Two-stage membrane process and apparatus

1992-09-11

1993-10-26

Spitzer, Robert

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

95 45, 96 9, 96 10, 2103216, B01D 5322

Patent

active

052562956

ABSTRACT:
A membrane separation process and system for removing a component from a fluid stream. An auxiliary membrane module or set of modules is installed across the second stage of a two-stage membrane separation system. The driving force for the auxiliary modules is provided by the pump or other driving unit for the first membrane stage. The auxiliary module or modules provides additional treatment of the residue stream from the second membrane stage, but are driven by the first stage driving unit. The invention is particularly useful in any membrane separation operation involving gas separation, vapor separation or pervaporation in which a two-stage system design is to be used, and where it is desirable to improve the efficiency of the two-stage system.

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