| 摘要 |
<p>PURPOSE: To lessen the deterioration in the articles in a storage container by withdrawing an atmosphere gas from this storage container, separating a gaseous product having a higher nitrogen content than the nitrogen content in a mixture composed of this gas and air and returning this product into the storage container. CONSTITUTION: The mixture composed of the atmosphere gas and air from an atmosphere inhalation pipe 3 and an air supply pipe 2 are fed by a compressor into columns 8, 10, where oxygen, carbon dioxide and hydrocarbon are adsorbed by activated carbon molecular sieve adsorbent beds 12, 14 of these columns. The non-adsorbed gaseous mixture contg. the nitrogen at a high concn. is returned through a tank 28 into a storage block, by which the deterioration of the product to be stored is lessened.</p> |
