| 摘要 |
<p>A cryogenic nitrogen production plant wherein all the heat transfer steps, and preferably all the heat transfer and separation steps, are carried out in a brazement (50, 7, 17) which receives feed air (60, 51) and from which is recovered product nitrogen (70, 29). The brazement (50, 7, 17) preferably contains a heat exchange section (1, 31), a condenser (3, 32) and a separation section (10, 4).</p> |
