Patent ID: 7909911

Claim:
A carbon dioxide permeable membrane, said membrane comprising: a body having a first side and an opposite second side; a plurality of first regions formed from a carbonate, said carbonate being at least partially molten when above a temperature of about 400 degrees Celsius, said plurality of first regions forming a portion of said body and said plurality of first regions extending from said first side of said body to said second side of said body, wherein said plurality of first regions are configured to conduct carbonate ions; a plurality of second regions formed from an oxygen conductive solid oxide, said plurality of second regions combining with said plurality of first regions to form said body and said plurality of second regions extending from said first side of said body to said second side of said body, wherein said plurality of second regions are configured to conduct oxide ions and separate carbon dioxide from other gaseous molecules and said plurality of second regions are surface treated with a catalyst that promotes transfer of oxide ions from said plurality of second regions to said plurality of first regions when separating carbon dioxide; and wherein said body is configured to allow carbon dioxide to pass from said first side to said second side.