| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide gas separation performance equal to or more than that of a multiple cylinder gas separation method/device even for a one cylinder, small-sized pressure swing adsorption method/device. SOLUTION: In a pressure swing adsorption gas separation method/device having one air compressor 11 and one adsorption cylinder 6, in addition to a product tank 8, a gas holding tank 7 is installed there, and between the adsorption process and the regeneration process, the outlet end of the adsorption cylinder 6 and the gas holding tank 7 are made to communicate with each other for a fixed time, the gas rich in product gas is temporarily held in the gas holding tank 7, and then, the regeneration process is performed, and after the regeneration process is finished, a new process is added in which the outlet end of the adsorption cylinder 6 and the gas holding tank 7 are mode to communicate again with each other for a fixed time to return gas to the adsorber 6.</p> |
