Transfer trays for mass transfer columns in offshore use

Details Transfer trays for mass transfer columns in offshore use Transfer trays for mass transfer columns in offshore use

2011-08-02

2011-08-02

Chiesa, Richard L (Department: 1776)

Gas and liquid contact apparatus

Contact devices

Wet baffle

C202S158000, C203SDIG024, C261S114200

Reexamination Certificate

active

07988134

ABSTRACT:
The invention describes a mass transfer column with at least one transfer tray via which liquid is routed in essentially the horizontal direction and through which gas is routed in the vertical direction. The transfer tray is designed as a reverse flow tray and a first separating weir (4) for changing the flow direction of the liquid flowing over the transfer tray by at least 90°, especially by roughly 180°. The transfer tray (2) is equipped with riser neck caps (3), at least one guide weir (5) for routing the liquid flow, and at least one braking weir (6) for reducing the flow velocity. The transfer tray (2) is divided into sections (7) by the separating weir (4), guide weirs (5), braking weirs (6), and column wall. The use of the riser neck caps (3) and weirs (4, 5, 6) with the resulting division of the transfer tray (2) into sections (7) ensures an almost uniform distribution of the liquid regardless of the tilt of the mass transfer column (1). The described mass transfer column (1) is thus suitable especially for use under offshore conditions.

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