METHOD FOR STABILIZING GAS CONDENSATE Russian patent published in 2023 - IPC B01D19/00 F25J3/06 

FIELD: gas industry.

SUBSTANCE: method for stabilizing hydrocarbon condensate is described, including primary separation of formation natural gas to obtain primary separation gas and unstable primary separation condensate, which is reduced and subjected to primary degassing to obtain primary degassing gas and primary degassing condensate, low-temperature separation of primary separation gas to obtain low-temperature separation condensate and low-temperature separation gas, stabilization of separated hydrocarbons by distillation to obtain a stable condensate and stabilization gas, while the primary degassing gas is sent either to the stage of low-temperature separation of the primary separation gas, or to the stage of stabilization of the separated hydrocarbons, the unstable primary degassing condensate after heating is reduced and subjected to secondary degassing with obtaining a stable secondary degassing condensate and secondary degassing gas, which after compression is sent for stabilization by rectification, the low-temperature separation condensate is subjected to degassing, while the resulting degassed low-temperature separation condensate is sent to the stage of stabilization of the separated hydrocarbons by rectification, the gas obtained at the stage of degassing of the low-temperature separation condensate, is sent either to the stage of low-temperature separation of primary separation gas, or to the stage of stabilization of separated hydrocarbons by rectification, the stabilization gas is either combined with low-temperature separation gas and sent to the consumer as a commercial gas, or sent to the stage of low-temperature separation of primary separation gas, and the stable condensate obtained at the stage of stabilization of the extracted hydrocarbons by rectification, they are combined with a stable condensate of secondary degassing and sent to the consumer as a commercial stable condensate.

EFFECT: increased reliability of operation of the GTU equipment, improved quality of commercial gas.

1 cl, 2 dwg, 1 tbl