Hybrid polymer membrane
AssigneeSintef Tto AS
InventorsMarius SANDRU, Eugenia Mariana SANDRU, Per Martin STENSTAD
Life of this patent
Estimating the term…
Abstract
The present invention relates to CO2 capture from gas mixtures by use of gas separation membranes. In particular, the invention relates to a gas separation membrane comprising: a gas permeable or porous support layer; and at least one CO2 selective polymer layer comprising carbonic anhydrase (CA) enzymes fixed within the at least one CO2 selective polymer layer. The present invention also relates to the method of separating CO2 from a gas and to the use of the gas separation membrane.
Claims15
A gas separation membrane comprising:
- a gas permeable or porous support layer;
- and
- at least one CO2 selective polymer layer comprising carbonic anhydrase (CA) enzymes fixed within the at least one CO2 selective polymer layer, wherein the CA enzymes are fixed within the at least one CO2 selective polymer layer through copolymerisation of chemically modified CA enzymes and monomers;
- and wherein the at least one CO2 selective polymer layer is based on a hydrophilic polymer.
(canceled)
(canceled)
(canceled)
A method of separating CO2 from a gas mixture comprising:
- contacting the gas mixture with a gas separation membrane, the gas separation membrane including:
- a gas permeable or porous support layer;
- and
- at least one CO2 selective polymer layer comprising carbonic anhydrase (CA) enzymes fixed within the at least one CO2 selective polymer layer, wherein the CA enzymes are fixed within the at least one CO2 selective polymer layer through copolymerisation of chemically modified CA enzymes and monomers;
- and
- continuously removing CO2 molecules from the gas separation membrane.
A method of separating CO2 from blood, or water in aquaculture and pisciculture comprising:
- providing a membrane contactor system having a gas separation membrane, the gas separation membrane including:
- a gas permeable or porous support layer;
- and
- at least one CO2 selective polymer layer comprising carbonic anhydrase (CA) enzymes fixed within the at least one CO2 selective polymer layer, wherein the CA enzymes are fixed within the at least one CO2 selective polymer layer through copolymerisation of chemically modified CA enzymes and monomers;
- contacting the blood or water with the gas separation membrane;
- and
- continuously removing CO2 molecules from the gas separation membrane.
Method of separating CO2 from a gas mixture, comprising:
- contacting the gas mixture with a gas separation membrane, the gas separation membrane including:
- a gas permeable or porous support layer;
- and
- at least one CO2 selective polymer layer comprising carbonic anhydrase (CA) enzymes fixed within the at least one CO2 selective polymer layer, wherein the CA enzymes are fixed within the at least one CO2 selective polymer layer through copolymerisation of chemically modified CA enzymes and monomers;
- and wherein the at least one CO2 selective polymer layer is based on a hydrophilic polymer;
- allowing at least part of the gas mixture to move through the membrane, in that CO2 molecules are transported selectively from a feed side to a permeate side due to an applied partial pressure, both by CA enzyme reaction and solution diffusion;
- and
- continuously removing CO2 molecules from the permeate side.
Dependencies are inferred from the claim text.