LOW-TEMPERATURE CONDENSATION UNIT Russian patent published in 2020 - IPC B01D3/00 B01D53/02 

FIELD: technological processes.

SUBSTANCE: invention relates to equipment for low-temperature separation of hydrocarbon gases and can be used in gas industry. Installation of low-temperature condensation, including located on the supply line of hydrocarbon gas cooling unit, comprising heat exchanger and refrigerating machine, and separator, connected to demethanizer by gas supply lines and separation residue with reducing devices, wherein demethanizer bottom is connected by demethanized condensate supply line to fractionation unit equipped with hydrocarbon fraction discharge lines, and is equipped with heater, and the upper part of the demethanizer is equipped with a discharge line of the stripped gas connected to the heat exchanger, characterized by that before the reducing device on the separation gas supply line there is a recuperative heat exchanger located also on the stripped gas output line, and the demethanizer bottom heater is located on the cooling assembly bypass, wherein the fractionation unit is equipped with an ethane fraction discharge line, and the heat exchanger is a multi-flow heat exchanger connected to the refrigerating machine by coolant inlet / outlet lines.

EFFECT: high extraction ratio of heavy gas components, low power consumption and possibility of producing ethane fraction.

1 cl, 1 dwg