Membrane stacks
AssigneeNatrix Separations Inc.
InventorsRonald F. Childs, Elena N. Komkova, Donna Lisa Crossley, Alicja M. Mika
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Abstract
The present invention discloses a membrane stack comprising a first and second membrane layers, and a spacer layer disposed between said first and second membrane layers, said membrane stack configured such that fluid passes through said membrane stack in a direction substantially perpendicular to the plane of said membrane layers and said spacer layer. The application also discloses a module comprising a membrane as described above, said module having a fluid flow path that is substantially perpendicular to the plane of the major surface of the membrane and spacer layers ins aid membrane stack.
Claims14
A membrane stack, comprising:
- first and second membrane layers;
- and
- a spacer layer disposed between said first and second membrane layers;
- wherein
- said membrane stack is configured such that fluid passes through said membrane stack in a direction substantially perpendicular to the plane of said membrane layers and said spacer layer;
- the membrane layers and the spacer layer form alternating layers wrapped around a core;
- at least one of said membrane layers comprises a macroporous gel-filled membrane layer;
- the macroporous gel-filled membrane layer comprises a support member;
- the support member comprises a void volume;
- said void volume is substantially completely occupied by a macroporous gel;
- and
- the macroporous gel has macropores of average size between about 10 and about 3000 nm.
Dependencies are inferred from the claim text.