PLANT FOR PROCESSING NATURAL GAS Russian patent published in 2017 - IPC F25J3/02 

FIELD: oil and gas industry.

SUBSTANCE: natural gas processing plant contains an absorber, a first, a second and a third separators, a first, a second, a third and a fourth heat exchangers, a first, a second and a third three-phase separators, each of which are connected to a water-methanol phase discharge pipeline, a device for air cooling of primary separation gas, a methanol feed unit, a gas cooler, a fractionating column, a furnace with heat-exchanging surface and collecting vessel of degassing having first outlet connected to pipeline for withdrawal of commercial liquid hydrocarbon product. Liquid hydrocarbon product obtained from liquid hydrocarbon phase withdrawn from the first separator is used as absorbent in the absorber. The absorbent is obtained by sequentially separating the gas in the first three-phase separator, the second three-phase separator, the third three-phase separator and fractioning in the fractioning column. The gas from the absorber passes through the fourth and the first heat exchangers and enters the product gas discharge pipeline.

EFFECT: improvement of natural gas processing quality.

3 cl, 2 dwg