Patent ID: 8454732

Claim:
A method of forming a membrane for separation of carbon dioxide (CO 2 ) from a mixture of gases comprising: supplying a substrate layer of inorganic oxides with average pore sizes of 3.0 μm to 10.0 μm which is 20-80% porous with a thickness of 6.0 mm to 15 mm; depositing on said substrate layer precursors for the formation of Li 2 ZrO 3 ; reacting said precursors to form a Li 2 ZrO 3 barrier layer wherein said barrier layer is formed at a thickness of 10 μm to 100 μm with a porosity of 0% to 30%; depositing on said barrier layer a sorbent layer comprising Li 2 ZrO 3 at a thickness of 100 μm to 500 μm; depositing a cap layer on said sorbent layer comprising inorganic oxides wherein said cap layer has a thickness of 50 μm to 250 μm.