| 摘要 |
<p>PURPOSE:To increase the operating efficiency of an adsorption/desorption tower by joining plural adsorption/desorption towers in the loop state so that these towers are changed over in order by providing pressure equalization time for an adsorption process and a desorption process in a pressure adsorption method. CONSTITUTION:The specified gas contained in gaseous mixture which has been introduced to each adsorption/desorption tower (A)-(H) from a compressor 03 for gaseous starting material is adsorbed and brought out from an outlet of each adsorption/desorption tower as gaseous product. The adsorption/desorption tower wherein the adsorption has been finished is changed over in order and joined and transferred to the desorption process. The adsorption/desorption tower wherein the desorption has been finished is joined with the adsorption/desorption tower wherein the adsorption has been finished and is transferred to a pressure equalization process and thereafter pressurized to the adsorption process. Thus, the adsorption process and the desorption process are repeated in the towers (A)- (H) through staggering the time by phase difference of pressure equalization time plus pressurization time.</p> |
