LIGHT FRACTIONS RECOVERY UNIT Russian patent published in 2017 - IPC F25J3/06 B01D53/02 A62C3/06 

FIELD: machine engineering.

SUBSTANCE: light fractions recovery unit includes a compressor and a cooling and separation device installed in the gas supply line from the tanks, a gas blower is installed as a compressor. The apparatus further includes an adsorption unit comprising at least two adsorbers with heat exchange unit units disposed in the adsorbent bed, one of which is in the adsorption mode and the other in the regeneration and cooling mode. The device for cooling and separation is made in the form of a two-section reflux condenser with a separation zone and a feeding zone. The upper section of the reflux condenser is connected by the refrigerant input/output lines to the refrigeration machine, the lower section is connected by the intake line of the purified gas mixture to the adsorber in the adsorption mode and equipped with a line for its withdrawal. The separation zone is equipped with a condensate outlet line, the supply zone is connected to the compressor, and the top of the reflux condenser is with the adsorber in the adsorption mode. In addition, the adsorber in the regeneration mode is connected to the lines of the cleaned gas mixture outlet and the gas mixture to the compressor, and its heat exchange element block is connected to the refrigerating machine by the heat carrier supply line.

EFFECT: elimination of restrictions on the volume of compressible gas mixture and reduction of energy consumption and metal consumption of equipment.

3 cl, 1 dwg