| 摘要 |
<p>PURPOSE:To remarkably conserve the amount of a purified gas by desorbing a substance adsorbed on an adsorbent with a heated gas having a flow of the direction reverse to a gas flow in a period of the adsorption and thereafter cooling the heated adsorbent with a green purification gas in the same direction as the heated gas flow. CONSTITUTION:When blowing a gaseous raw material (green air) through an inlet 1 of an adsorption apparatus, it is introduced into an adsorption tower A via a valve V1 and a four-way cock 2 and therein the impurities being mainly water content are adsorbed and removed and a purified gas (dry air) is discharged through an outlet 3 via a check valve CV1 and a valve V2. On the other hand, for an adsorption tower B, a gaseous raw material (green air) is sent to the adsorption tower B from the top of the tower via a heater 5 and a check valve CV2 by means of a blower 4 in order to regenerate (activate) the adsorbent. Then it is discharged to the outside of the system via the four- way cock 2 while heating the adsorbent and rising its temp. to desorb the impurities adsorbed on the adsorbent in an adsorption process.</p> |
