A method and ground for the separation of oxygen from gas mixtures with the use of pr - ce - oxides as a traeger

摘要

Oxide solid solutions of praseodymium and cerium are useful as the oxygen carrier in a reversible cyclic oxidation-reduction process for separating oxygen from air. The adverse affects on redox rates of contaminants in the air, such as CO2 and/or H2O are substantially eliminated by incorporating a surface dopant such as silver into the praseodymium-cerium oxide.