| 摘要 |
This column includes at least one exchange section (5, 9, 10, 11) defined between an associated upper liquid distributor (4, 6, 7, 8) and a lower fluid inlet/outlet (21, 23) or an associated lower liquid distributor (7, 8), the exchange section including an upper portion (5A, 9A) and, under it, another portion (5B, 9B, 10B, 11B) preferably of the conventional type. The upper packing portion of at least one packing section includes a packing module having less transfer units than a packing module of the conventional packing portion of the same section. Application to double columns for air distillation.
|
