| 摘要 |
<p>A transport vehicle 74 has a storage compartment 72. An apparatus for the separation of a gas mixture by pressure swing adsorption has a pipeline 2 communicating with the atmosphere outside the compartment 72 and with an inlet to compressor 4 forming part of the apparatus. The inlet of the compressor 4 also communicates with a conduit 3 which has an inlet in communication with the interior of the compartment 72. The apparatus also includes columns 10 and 12 each containing a bed of carbon molecular sieve which adsorbs oxygen, carbon dioxide and hydrocarbons more readily than nitrogen. In operation, the apparatus provides nitrogen enriched air to the storage compartment 72 via a conduit 30 to form a circulating atmosphere that helps to preserve perishable produce stored therein.</p> |
