Patent ID: 7232115
Filing Date: 2007-06-19
Classification: B01D

Abstract:
1. A gas-liquid contacting tray suitable for horizontal mounting in a normally vertical column for counter-currently contacting gas and liquid, which tray comprises: an upper tray having a tray plate with top and bottom surfaces and a downcomer inlet opening, said upper tray being provided with a truncated downcomer for guiding liquid from the top surface of the tray plate to a downcomer outlet opening below the tray plate, the downcomer having a sidewall extending downwardly from the downcomer inlet opening, the sidewall having a liquid outlet opening provided with a liquid guiding means, a lower tray having a tray plate with top and bottom surfaces and at least two downcomer inlet openings, the lower tray being provided with at least two truncated downcomers, said downcomers having sidewalls extending downwardly from said downcomer inlet openings, the sidewalls having liquid outlet openings provided with liquid guiding means, the sidewalls of the downcomers of the lower tray extending generally parallel with the sidewalls of the downcomer of the upper tray, and wherein the downcomer on the upper tray is arranged generally symmetrically between two downcomers on the lower tray.