| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a technique which enables efficiently obtaining concentrated gas of high concentration while efficiently removing moisture in gaseous starting material. SOLUTION: In this method for concentrating specific component gas, a concentration device X, which is provided with a first concentration unit 1 in which the inlet of a first absorption means 10 is conducted to the outlet of a first dehumidifying means 11 via a first connecting means 12 and a second concentration unit 2 in which the inlet of a second absorption means 20 is conducted to the outlet of a second dehumidifying means 21 via a second connecting means 22, is used, further, a series of processes containing an absorption process, a pressure equalization process and a desorption process are successively repeated in the respective concentration units 1, 2, thereby, the moisture and non-specific component gas in the gaseous starting material are removed, the specific component gas is thus concentrated, at the same time, while the absorption process is performed in one side concentration unit 1 (2), the desorption process is performed in the other side concentration unit 2 (1) and the pressure equalization process is performed in the respective concentration units 1, 2 at the same time. Therein, the pressure equalization process is performed by allowing the first connecting means 12 and the second connecting means 22 to be in a communicated state.</p> |
