| 摘要 |
A gas-liquid contacting column is described with a number of axially spaced trays, each having two sections separated along a diametrical line on the tray, and having a number of parallel rectangular downcomers, open at the upper end and closed at the bottom end, which has a number of liquid discharge openings, and a number of liquid receiving areas with bubble area between them. The liquid receiving area is positioned just below the downcomer of a consecutive tray just above. The downcomers extend from the diametrical line to the circumferential of the tray such that the ends of the downcomers of the two tray sections are positioned along the diametrical line in an alternating manner, wherein the area of the liquid discharge openings per downcomer length as viewed from below and close to the diametrical line is less than that as viewed from below. |
