Packing-enhanced baffled downcomer fractionation tray

Details Packing-enhanced baffled downcomer fractionation tray Packing-enhanced baffled downcomer fractionation tray

1992-12-29

1993-09-14

Miles, Tim

Gas and liquid contact apparatus

Contact devices

Porous mass

2611141, B01F 304

Patent

active

052446042

ABSTRACT:
The efficiency of multiple downcomer type fractionation trays is increased by increasing the length of the liquid flow path and providing Lewis Case II point to plate efficiency enhancement. Baffles (7) extending axially along the vertical axis of a fractionation column divide the intertray volumes of the column into defined vapor passageways. A pair of inclined liquid deflecting baffles (3) over each downcomer (10) connects the outlets and inlets of vertically adjacent downcomers and provides a crisscrossing liquid flow path. Beds (14) of vapor-liquid contacting material increase tray efficiency.

REFERENCES:
patent: 3410540 (1968-11-01), Bruckert
patent: 3417975 (1968-12-01), Williams et al.
patent: 3434701 (1969-03-01), Bauer
patent: 3658306 (1972-04-01), Jones
patent: 4159291 (1979-06-01), Bruckert
patent: 4499035 (1985-02-01), Kirkpatrick et al.
patent: 4550000 (1985-10-01), Bentham
patent: 4582569 (1986-04-01), Jenkins
patent: 5098615 (1992-03-01), Resetarits
"Distillation with less energy," Chemical Week, Oct. 19, 1983, p. 30.

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