Reflux return system

Details Reflux return system Reflux return system

B - Operations, Transporting

01

D

201/104

B01D 3/26 (2006.01) B01D 3/14 (2006.01) B01D 5/00 (2006.01) B01D 7/00 (2006.01)

Patent

CA 1089401

ABSTRACT OF THE DISCLOSURE The temperature of the reflux fed to a fractionating tower is increased after the reflux enters the tower and before it passes onto the reflux return tray by passing the reflux through an atomizer in the fractionating tower above the reflux return tray to produce a downfalling spray of liquid droplets; collecting the droplets on a chimney tray located between the atomizer and the reflux return tray, the chimney tray containing chimneys that convey hot vapors rising from the reflux return tray upward through the chimney tray; and passing the collected liquid from the chimney tray onto the reflux return tray. The distance between the chimney tray and the atomizer is such as to allow the downfalling droplets to absorb sufficient heat from the hot rising vapors so that the temperature of the reflux liquid collected on the chimney tray is increased to a desired value. The distance between the atomizing device and the chimney tray necessary to raise the temperature of the reflux to the desired value may be minimized by using a two-condenser, two-drum fractionator overhead system to increase the temperature of the reflux before it is fed to the fractionator.

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