SEPARATION OF LOW-BOILING COMPONENT FROM MIX OF VAPORS AND DEVICE TO THIS END Russian patent published in 2013 - IPC B01D53/00 B01D3/00 

FIELD: process engineering.

SUBSTANCE: set of invention relates to oil-and-gas industry and may be used for separation of hydrocarbons and liquefied gases. In compliance with this method mix of vapors is fed as condensed vapor and swirled inside vertical pipe to create countercurrent motion of swirled phase flows. Note here that condensate flows downward and from said pipe over its inner surface to get enriched with high-boiling component while vapor flows upward to escape from said pipe in axial region to get enriched with low-boiling component. Mix is fed tangentially and upward in pipe bottom while pipe inner surface is cooled to form condensate, a wet reflux, thereon. Pipe inner surface temperature is maintained to make temperature of target product, the vapor, approximate to low-boiling component boiling point. Proposed device comprises vertical cylindrical pipe with top and bottom ends, gas discharge branch pipe at top end, fluid discharge branch pipe at bottom end and means for tangential mix feed inside the pipe. Said cylindrical pipe is fitted in tangential larger-diameter pipe to form annular flow channel confined by top and bottom ends for heat carrier to circulate therein. Means for tangential mix feed inside the pipe are composed of end swirler arranged at pipe bottom end. Fluid discharge means represent clearance between inner cylindrical pipe swirler. Annular flow channel and gas discharge branch pipe accommodate temperature control means, for example, thermometers. Heat carrier flow rate regulator, for example, control valve, is arranged at annular channel.

EFFECT: higher purity of low-boiling component.

3 cl, 2 dwg, 1 ex, 1 tbl