REMOVAL OF GASEOUS CONTAMINANTS FROM GAS FLOW CONTAINING GASEOUS CONTAMINANTS AND DEVICE TO THIS END

摘要

FIELD: process engineering.SUBSTANCE: invention relates to removal of gaseous contaminants from gas flow containing gaseous contaminants and device to this end. Stock gas flow is cooled to form suspension containing the solid contaminant, liquid-phase contaminant and gas phase enriched with methane. Suspension is fed to cryogenic separator (4) for gas phase (5) to be withdrawn therefrom. Said suspension is diluted by liquid-phase contaminator (6) and sucked into ejector (9) and therefrom in heat exchanger (10) arranged outside said separator and wherein sold contaminator is fused to form liquid-phase contaminator. Portion of obtained liquid-phase contaminator is directed to circulation (6) for dilution of suspension inside said separator while another portion (13) is fed into separator bottom. Liquid phase (14) is discharged from separator bottom while portion of discharged liquid-phase contaminator is removed as the flow of product (16) and another portion is recycled to ejector (17) to be used as the motive fluid.EFFECT: higher reliability of contaminants removal from separators.14 cl, 1 dwg