B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
202/124
B01D 3/06 (2006.01) B01D 3/14 (2006.01) B01D 45/08 (2006.01)
Patent
CA 2035452
F-5445 METHOD AND APPARATUS FOR INTRODUCING A LIQUID FEED INTO A VAPOR/LIQUID SEPARATION TOWER ABSTRACT A flashing feed inlet is used in a vapor/liquid separation tower, such as a distillation column, to decrease the amount of liquid entrainment and maldistribution of vapor occurring when the liquid feed stream is introduced into the column at a temperature and/or pressure conditions higher than those existing in the column. The inlet comprises: a) a feed pipe 5 containing at least one side opening 9 cut at an angle .alpha. of not greater than about 30° below or above the horizontal axis, wherein the angle .alpha. is defined as an angle between the horizontal axis and the upper edge of the side opening 9, and at least one opening 13 in the bottom of the feed pipe 5, the total cross-sectional area of the side opening 9 being sufficient to decrease the linear velocity of the feed stream to not less than about 3 ft/sec, and b) a flashing chamber 7, operatively connected to, spaced from and surrounding the feed pipe 5, having a sufficient cross-sectional area to decrease the linear velocity of a vapor, produced by flashing of at least a portion of the feed stream in the flashing feed inlet, to a value substantially the same as the superficial vapor velocity within the column, the flashing chamber 7 additionally providing a surface 10 for the feed stream to strike, thereby promoting the separation of the vapor from the liquid.
Kirby Eades Gale Baker
Mobil Oil Corporation
LandOfFree
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