Multicomponent or asymmetric gas separation membranes

Details Multicomponent or asymmetric gas separation membranes Multicomponent or asymmetric gas separation membranes

1997-03-28

1998-10-13

Tentoni, Leo B.

Gas separation: apparatus

Apparatus for selective diffusion of gases

Plural separate barriers

96 10, 96 12, 96 13, 96 14, B01D 5322, B01D 7164, B01D 7168

Patent

active

058206590

ABSTRACT:
Gas separation membranes having enhanced selectivity for a mixture of gases is disclosed. The membranes may be asymmetric or multicomponent. The membranes surprisingly provide selectivity for gases in a mixture that approaches the relative selectivity of the single gas components. Preferably the membrane provides selectivity for a mixture of gases which is at least 65%, preferably 80%, of the relative selectivity of the corresponding single gases. A process for making improved gas separation membranes is also disclosed.

REFERENCES:
patent: 5085676 (1992-02-01), Ekiner et al.
patent: 5085774 (1992-02-01), Ekiner et al.

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