FIELD: gas separation. SUBSTANCE: membrane apparatus for gas separation has pressure body having pipe union for admission of gas mixture to be separated and discharge of separated components. Located in body is membrane roll member in form of central perforated header separated by plug. Wound on header are membrane packs formed by two interconnected membranes with draining channel between them and sheets of turbulator-separator between adjacent packs. Membrane roll member is made of even number of alternating membrane packs formed by two types of membranes with reverse selectivity, sealed by three outer sides and also by side adjacent to header up to plug. For even and odd packs sealing zone adjacent to header is located on different sides of plug. EFFECT: higher efficiency. 7 dwg
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