Liquid collector and redistributor for packed columns

摘要

Liquid descending in an exchange column (14) containing a layer of packing (12) is collected and redistributed by an apparatus (10) located below said layer and comprising a plurality of laterally spaced longitudinal members (16); a plate (18) vertically spaced from the bottom of the layer of packing and extending between an adjacent pair of the longitudinal members to collect descending liquid passing therebetween; and at least one vapor riser (20) projecting upwardly from the plate between said members to receive and transmit vapor ascending in the exchange column, each vapor riser having an upright wall (30) closed by a cap (24) and having at least one vapor opening (22).