| 摘要 |
A counterflow column that includes a liquid distributor including a plurality of tubular or trough-like distributor members. The distributor members are arranged in a column above a packing such that a plurality of partial flows develop in an upwardly flowing gas at the level of the distributor members. Stagnation zones are present between the packing and the distributor members. Through screen-off structure, not required per se for a liquid output, the stagnation zones and/or the flow of a liquid to be distributed are influenced such that a liquid, after emerging from the distributor members and prior to entry into the packing, traverses in free fall through the stagnation zones, and where appropriate also further regions, in which the gas flow is largely free of horizontal velocity components. The gas flow may also be influenced by a suitable shaping of the distributor members.
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