Fractionation trays

Details Fractionation trays Fractionation trays

1996-07-29

1997-04-08

Miles, Tim R.

Gas and liquid contact apparatus

Contact devices

Wet baffle

B01F 304

Patent

active

056184735

ABSTRACT:
A fractionating column is provided which has perforated fractionating trays and downcomers allowing liquid to flow from one tray to the tray immediately below, said downcomers being provided with radial outflow ports directing downflowing liquids towards the column wall rather than onto the surface of the tray directly below the downcomer. This permits at least a portion of the under-downcomer area to be perforated thereby increasing the capacity of the tray for vapor/liquid contact and ensuring that weeping of the liquid through the perforations is avoided without need for an increase in vapor pressure.

REFERENCES:
patent: 2684837 (1954-07-01), North et al.
patent: 2693949 (1954-11-01), Huggins
patent: 2982527 (1961-05-01), Eld et al.
patent: 3729179 (1973-04-01), Keller
patent: 3797811 (1974-03-01), Jullien et al.
patent: 4275021 (1981-06-01), Kirkpatrick et al.
patent: 4504426 (1985-03-01), Chuang et al.
patent: 4956127 (1990-09-01), Binkley et al.
patent: 5242628 (1993-09-01), Nye
patent: 5277848 (1994-01-01), Binkley et al.

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