Two-phase downflow liquid distribution device

Details Two-phase downflow liquid distribution device Two-phase downflow liquid distribution device

B - Operations, Transporting

01

D

165/7

B01D 3/20 (2006.01) B01J 8/04 (2006.01)

Patent

CA 2224696

An improvement is provided in a liquid-vapour distribution device for use in two- phase concurrent downflow vessels. The improvement includes a level, horizontal tray which is fabricated and installed so as to be essentially-leak-free at the junctions of the tray and the vessel wall. The horizontal tray includes perforations of equal size, the perforations being distributed in an optimized pattern over the surface of the horizontal tray. Each perforation through the horizontal tray is fitted with a vapour lift tube. The vapour lift tube includes an upflow tube portion and a downflow tube portion. The upflow tube portion is configured to fit against the downflow tube portion so as to limit an upflow zone to substantially one side of the downflow tube portion.

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