GAS ADSORPTION UNIT Russian patent published in 2023 - IPC F25J3/00 

FIELD: gas industry.

SUBSTANCE: method for preparing hydrocarbon gas, used in the gas industry. The gas treatment adsorption unit includes a furnace, a high-pressure separator and adsorbers, the top of which is connected to the source gas supply line, the cooling gas outlet line, the regeneration exhaust gas outlet line, and the bottom of which is connected to the prepared gas outlet line, the cooling gas supply line, regeneration gas supply line. The regeneration exhaust gas is divided into a hydrocarbon condensate flow outlet line and a regeneration exhaust gas flow outlet line with a throttle. The regeneration exhaust gas outlet after the throttle is connected through the first cooled regeneration exhaust gas flow line to a propane refrigerator, which is connected through the second cooled regeneration exhaust gas flow line to the low-temperature separator. The first cooled separation gas outlet line is connected to the second recovery heat exchanger, which is also connected through the second cooled separation gas supply line to the middle part of the rectification and stripping column and through the second cooled hydrocarbon condensate outlet line is combined with the first cooled hydrocarbon condensate outlet line into the common flow, which connected to the top of the rectification and stripping column.

EFFECT: ensuring the possibility of resource saving of the unit.

1 cl, 1 dwg