Contact and separation column and tray

摘要

A contact and separation column (1) encasing a stack of one or more contact and separation cells (3). Each cell comprises: -a tray (4) with gas flow openings (6) opening into contact and separation units (7); -a downcomer (16) defining a liquid discharge;and -a liquid supply (17). Each contact and separation unit (7) comprises an upstream contact zone(8, 9) with liquid inlets (12), and one or more downstream separation zones (10) provided with a swirler (13) and a top end with a gas outlet (14). The cross-sectionalareaof the contact zone (8, 9) is larger than the cross-sectionalarea of the cross- sectional areas of the one or more separation zones of the contact and separation unit in question (10). Process for treating a gas with such a column.