| 摘要 |
<p>Oxygen is removed from gas streams by subjecting the gas stream to a pressure swing adsorption process carried out at temperature in the range of 300 to 1400 DEG C using as adsorbent a perovskite material having the structural formula A1-xMxBO3- delta , where A is a rare earth ion, M is Na, Ca, Sr, Ba or mixtures of these, B is Co, Mn, Cr or Fe , x varies from 0.1 to 1 and delta is the deviation from stoichiometric composition resulting from the substitution of Sr, Ca and Ba for rare earth ions.</p> |
