Patent ID: 7204477
Filing Date: 2007-04-17
Classification: B01D

Abstract:
1. A vapor-liquid contacting tray comprising: a) a plurality of vapor-liquid contacting decks; b) a plurality of downcomers, each downcomer being formed by a first elongate side wall and an opposing second elongate side wall extending a shorter vertical distance below the proximate contacting deck than the first elongate side wall, each downcomer further comprising a bottom plate that intersects the first elongate side wall; c) an inclined downcomer baffle defining a vertical liquid flow path for liquid flowing through each downcomer onto a subsequent tray wherein the inclined downcomer baffle extends from the second elongate side wall, intersects the bottom plate, and extends at least to a vertical plane formed by the first elongate side wall; and d) a central baffle extending between at least two of said plurality of downcomers and intersecting at least one of said contacting decks.