Importance

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Abstract

A plate for columns performing distillation and/or absorption processes in which through openings in the plate body are provided with an inlet weir and with an outlet weir and in such openings inserts (8-21; 30) are fixedly mounted containing through holes with changing cross-sections, each insert (8-12; 30) contains a through hole which with respect to the flow direction of vapor and/or gas has an inlet zone (19;25) with an inwardly decreasing cross-section, an intermediate cylindrical zone (20, 26) connected thereto and, as a continuation thereof, an outlet zone (21;27) having an outwardly increasing cross-section; the plate body (2) and the upper surface of the inserts (8-12; 30) are aligned in a common or essentially common plane and, at least some of the inserts (8-12; 30); have through holes with their geometrical axis (x) being inclined under an acute angle (.alpha.) with respect to the upper plane of the plate body (2).

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First Claim