| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide more excellent gas separating method by limiting operating temp. of a conventionally known adsorbing agent. SOLUTION: In the method in which mixed gas is brought into contact with the adsorbing agent containing low silica faujasite type zeolite to adsorb at least >=1 kind gas in the mixed gas to separate from other gas, the Si/Al molar ratio of zeolite skeleton is substantially 1.0 and also >=97% of exchangeable cation is exchanged with lithium and the gas is adsorbed at the temp. at which zeolite crystal form is converted to rhombic. At least >=1 kinds among gaseous oxygen, gaseous nitrogen, gaseous carbon dioxide, gaseous hydrogen and gaseous carbon monoxide are contained in the mixed gas. And the mixed gas is air, and the gaseous nitrogen is adsorbed to the adsorbing agent to separate from the gaseous oxygen.</p> |
