| 摘要 |
PURPOSE:Air is passed through a membrane selective to oxygen to enrich oxygen, then the oxygen-enriched air is fed to the cathode which is a gas diffusion electrode in the electrolytic oxygen concentrator, whereby substantially pure oxygen is liberated from the anode side in high efficiency. CONSTITUTION:Air is sent through a filter 4 into the oxygen concentrator 1 where oxygen is concentrated by the membrane cell selective to oxygen 5, which is composed of poly(4-methylpentene-1), to a level of 30-40% oxygen concentration. The resultant air is pumped to the electrolytic oxygen concentrator 3 where only oxygen is transferred from the cathode of gas diffusion electrode 7 through the sulfuric acid electrolyte solution 9 to the anode where oxygen is liberated, thus enabling collection of substantially 100% pure oxygen from the outlet 10.
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