| 简介 |
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. |
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