Gas-liquid contacting apparatus
AssigneeAMT International, Inc.
InventorsAdam T. Lee, Francis W. Lemon
Life of this patent
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Abstract
A gas-liquid contacting apparatus is provided wherein the perforated trays are divided into portions by a lattice-like pattern of downcomers which deliver liquid to central regions of the tray portions immediately below them. An odd number, X, for example three parallel downcomers which are at right angles to an even number or X−1, for example two parallel downcomers are provided so that adjacent trays be turned at right angles so that the downcomers of the upper tray extend centrally between the downcomers of the lower tray. The downcomers reduce stagnant liquid regions, distribute the liquid more evenly on the trays and allow longer flow paths to be provided on the trays.
Claims13
A gas-liquid contacting apparatus, comprising,
- a) an upwardly extending casing having a liquid inlet to, and a gas outlet from, a top end portion thereof, and a gas inlet to, and liquid outlet from, a lower end portion thereof,
- b) a plurality of perforated tray assemblies partitioning the casing at different levels between the said upper and lower portions thereof, each tray assembly comprising an array of perforated sheets, at least major portions of which are separated from one another by a lattice-pattern of liquid receiving channels, and for each pattern of channels,
- c) a correspondingly patterned downcomer weir and duct means encasing those channels and for receiving liquid from the perforated sheet portions separated thereby,
- d) liquid delivery means attached to duct portions, of the weir and duct means, for maintaining a liquid seal in the duct portions, and for delivering liquid from the duct portions to a central region of each perforated sheet portion immediately therebelow.
Dependencies are inferred from the claim text.