METHOD FOR PROCESSING LOW-PRESSURE HYDROCARBON GASES AND LIQUID HYDROCARBONS Russian patent published in 2017 - IPC F25J3/08 

FIELD: oil and gas industry.

SUBSTANCE: gas is compressed and cooled under the condition of refluxing and stabilizing of the reflux liquid at the initial stages of compression, together with the gases of low pressure stabilization to obtain a low pressure condensate and compressed gas, which is dried, purified, and mixed with a gas of high pressure stabilisation, compressed and cooled under refluxing and stabilising of the reflux liquid in the third stage, using the gas of low temperature separation as the refrigerant to obtain propane-butane fraction and the compressed gas. The latter is reduced and separated, with obtaining the low-temperature separation gas, which is heated by the liquid hydrocarbons released during gas compression at the third stage, and extracted as the treated gas, and the condensate, which is stabilized with obtaining the stabilisation gas of high pressure and the propane fraction. The liquid hydrocarbons are stabilised together with the condensate of low pressure to obtain the stabilisation gas of low pressure and stable gasoline.

EFFECT: improvement of the quality and range of the products.

4 cl, 1 dwg