METHOD OF REGENERATING NATURAL GAS DRIER Russian patent published in 1998 - IPC

FIELD: gas treatment. SUBSTANCE: invention relates to regeneration of saturated moisture- absorbing solution (diethylene glycol) which is used to remove water steam from gas in drying installations for natural and oil gases. Method involves membrane technology and is performed in two process stages: the first one permits saturated absorbent to be desalted by its pumping through membrane element followed by passing it through ion-exchange columns at 20-35 C; and the second stage leads to drying desalted absorbent by means of pervaporation at 58-60 C. EFFECT: enabled production of final product (regenerated diethylene glycol) with very low (below 1%) water and salt content. 4 cl, 2 dwg, 1 tbl