| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a chlorine removal apparatus and oxygen separation by pressure swing adsorption capable of preventing the adsorbent from performance deterioration due to an effect of chlorine and efficiently separating and recovering oxygen by installing an activated-carbon packed column on the inlet side of a pressure swing adsorber when separating and recovering oxygen gas from a gaseous mixture containing chlorine and oxygen by pressure swing adsorption. SOLUTION: This apparatus for separating and recovering oxygen gas from a gas mixture 1 which contains chlorine, oxygen, nitrogen, carbon dioxide and argon by pressure swing adsorption comprises pressure swing adsorbers 5a, 5b and 5c, and activated-carbon packed columns 2a and 2b through which chlorine is removed. The activated carbon packed into the columns 2a and 2b is preferably coconut shell-based activated carbon.</p> |
