| 摘要 |
<p>PURPOSE:To decrease the power unit and quantity of adsorbent for the production of nitrogen, by introducing air into plural adsorption columns filled with Ca-X type zeolite and performing the adsorption and desorption of N2 under specific condition. CONSTITUTION:Ca-X type zeolite is filled in plural N2-adsorption columns as an N2 adsorbent. A mixed gas composed mainly of N2 and O2, e.g., air, is introduced into the plural adsorption columns and the N2 gas is adsorbed under an adsorption pressure of 1-3atm. at an adsorption temperature of +25--30 deg.C. The adsorbed N2 is desorbed under a desorption pressure of 0.05-0.5atm.</p> |
