With the current oil price at a record high, the importance of conserving non-renewable energy sources and harnessing energy from renewable alternatives cannot be over-emphasized. Most industrial heating processes generate required energy by combusting hydrocarbon fuel, such as oil or natural gas, with air as the oxidant. In many cases, there is room to enhance the combustion process by using either a pure or an enriched oxygen stream. High purity oxygen is also an essential requirement in many of the emerging technologies such as solid oxide fuel cells (SOFCs) and methane to syngas production. Hence, economics of oxygen generation technologies is intimately related to the optimum utilization of fossil fuel in an environmentally friendly manner. Perovskites, also known as ABO3 type mixed metal oxides (where A and B are exchangeable metal ions) are known to produce high degree of oxygen deficiency in their structure at high temperature. We have completed a preliminary investigation where it has been shown that the aforementioned perovskite property can be effectively utilized to develop a high temperature adsorbent for air separation with practically infinite oxygen selectivity. A couple of promising compositions have been identified, and equilibrium and kinetics of oxygen adsorption in these perovskite samples have characterized. Potential of these samples for air separation by pressure swing adsorption is currently being explored and the findings will be presented in the proposed presentation.