METHOD FOR SEPARATING OXYGEN AND NITROGEN FROM MIXED GAS

摘要

PURPOSE:To decrease the motive power unit cost by operating the following gas with a prescribed method which consists essentially of oxygen and nitrogen and is flowed into the plural adsorption towers packed with sodium faujasite. CONSTITUTION:The mixed gas consisting essentially of oxygen and nitrogen is flowed at room temp. or below in 1-3ata pressure into the plural adsorption towers packed with sodium faujasite. In the period of this adsorbing process, the mixed gas is naturally flowed into the adsorption towers till the atmospheric pressure and thereafter pressurized in 1-3ata pressure and flowed thereinto. Nitrogen contained in the mixed gas is adsorbed and oxygen is flowed out through the outlets of the adsorption towers. On the other hand, the towers in which nitrogen is adsorbed are decompressed to 0.08-0.5ata and regenerated.