Carbon dioxide separator membrane structure, method of manufacturing same, and carbon dioxide separator including same
A carbon dioxide membrane structure, a method of making the same, and a carbon dioxide separator including the same. The membrane structure may include a carbon dioxide separation membrane containing PVA and a carrier, and a polysulfone-based support having an average pore size ranging from about 40 to about 90 μm.
1. A carbon dioxide separation membrane comprising:
a base polymer comprising poly vinyl alcohol (PVA);
a carrier selected from:
imidazole; and
benzimidazole;
a cross-linker comprising DETA
wherein the carbon dioxide separation membrane is configured to operate at temperatures ranging from about 80° C. to about 150° C.
2. The membrane of claim 1 , wherein the membrane has a PVA to carrier mol ratio ranging from about 5:1 to about 10:1.
3. A carbon dioxide separation membrane comprising:
a base polymer comprising poly vinyl alcohol (PVA); and
a carrier comprising PANI,
wherein the membrane has a PVA to carrier mol ratio ranging from about 275:1 to about 325:1, and
wherein the carbon dioxide separation membrane is configured to operate at temperatures ranging from about 80° C. to about 150° C.
4. The membrane of claim 1 , wherein the membrane is configured to operate at a temperature ranging from about 100 to about 140° C.
5. The membrane of claim 1 , wherein the PVA is at least about 99% hydrolyzed.
6. The membrane of claim 1 , wherein from about 20% to about 25% of monomers of the PVA are cross-linked.
7. The membrane of claim 1 , wherein the carrier comprises imidazole.
8. The membrane of claim 1 , wherein the carrier comprises benzimidazole.
9. The membrane of claim 3 , wherein the membrane is configured to operate at a temperature ranging from about 100 to about 140° C.
10. The membrane of claim 3 , wherein the PVA is at least about 99% hydrolyzed.
11. The membrane of claim 3 , wherein from about 20% to about 25% of monomers of the PVA are cross-linked.
12. The membrane of claim 3 , further comprising a cross-linker selected from:
formaldehyde;
DETA;
DETA and formaldehyde;
potassium hydroxide and formaldehyde; and
gultaraldehyde and potassium hydroxide.
13. The membrane of claim 12 , wherein when the cross-linker is formaldehyde.