METHOD OF SEPARATING GAS CONDENSATE Russian patent published in 1998 - IPC

FIELD: petroleum processing. SUBSTANCE: raw material heated in heat exchangers is introduced into the first rectification column Ц gas condensate stabilizer provided with sprinkling reservoir from which unstable fractions are withdrawn in vapor phase. Heat is given into the bottom of column by means of recycling a part of distillation residue through furnace and column bottom. Condensate of light gasoline fractions from the top of column is used as reflux liquid. Distillation residue from stabilizer (stable gas condensate) is directed into the second column separating gas condensate into light gasoline fraction and diesel fuel fraction. Light gasoline fractions from the top of each column and diesel fraction from the bottom of gas condensate-separation column are directed in liquid phase into in-series connected heat exchangers to heat raw material. In addition, raw material, prior to be introduced into the gas condensate stabilizer, is advantageously combined with a part of the condensate of light fraction taken away from the top of stabilizer and also used as stabilizer reflux. It is desirable, to heat mixture in heat exchangers and then to feed a part of heated mixture into the top of stabilizer together with reflux and a part of stream used to transfer heat into the bottom of stabilizer. EFFECT: improved quality of products. 3 cl, 1 dwg , 1 tbl