Glitsch, Inc.

Koch Enterprises, Inc.

Larry Burton

Adam T Lee

Kuang Wu

Leon Fan

Michael J Binkley

An improved downcomer for vapor liquid contact towers. The downcomer is formed between generally semi-conical walls and the wall of the tower. The downcomer outlet is formed by the lower edge of the generally semi-conical walls and the wall of the tower with the lower edge of the generally semi-conical walls being closer to the wall of the tower at the center of the downcomer outlet than at the opposing end portions of the downcomer outlet so that more liquid flows through the opposing end portions of the downcomer outlet than through the center of the downcomer outlet thereby providing a substantially uniform flow of liquid across the tray adjacent the downcomer.

Downcomer for chemical process tower

A chemical process tower tray construction incorporating a tapered semi-conical downcomer adaptive for discharging liquid along an arcuate edge portion of an underlying tray. The underlying tray is of the type supported within the chemical process tower by a support ring which is positioned beneath the edge of the tray for the support thereof. The solid support ring typically forms a nonactive area beneath this region of the tray and the tapered downcomer discharges liquid directly onto the inactive region wherein the remaining portion of the tray can be utilized for mass transfer.

Downcomer for chemical process tower and method of forming the same

A method of and apparatus for deentrainment and mass transfer in a chemical process tower. The apparatus comprises a structured packing layer assembled with a second type of packing layer disposed adjacent the underside of a process tower tray. The dual layer assembly reduces liquid entrainment in ascending vapor flow and provides an additional region for mass transfer.

Apparatus and method for deentrainment in a chemical process tower

A multiple downcomer tray assembly for vapor liquid contact towers. The downcomers are constructed with support baffles enabling the downcomer tray to be supported therefrom. The support baffles include a generally centralized aperture formed therethrough. An active bridge is disposed between adjacent, end to end downcomers for equalization of liquid flow upon the tray.

Multiple downcomer high performance tray assembly

A downcomer-tray assembly for vapor liquid contact towers with enlarged effective active areas. The downcomers are constructed with support baffles enabling intermediate areas of the downcomer-tray to be supported therefrom and outer areas of the downcomer-tray to be supported by an active tower support ring. An active bridge may be used between end-to-end downcomers for maximizing the active area of the associated tray.

Apparatus for increasing effective active area

A downcomer tray assembly for vapor liquid contact towers. The downcomer is formed with generally semi-conical walls forming a vapor tunnel relative to the discharge region therebeneath. The discharge region is also constructed with a trough and a plurality of venting chambers upstanding therefrom for improving mass transfer efficiency. The venting chambers reduce fluid pressure to vent excess vapor from the underlying tray. The vented vapor is selectively directed into the liquid discharged from the downcomer and allowed to pass through the vapor tunnel. In this manner both entrained liquid and entrained gas can be effectively released to facilitate a stabilized vapor-liquid flow configuration.

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De Soto, TX, United States of America

Larry Burton