PUMP TANK, RECTIFICATION PLANT AND METHOD FOR LOW-TEMPERATURE RECTIFICATION Russian patent published in 2021 - IPC F04B23/02 F25J3/02 B01D3/14 

FIELD: gas industry.

SUBSTANCE: invention relates to the separation of components of gas mixtures. Rectification plant (200) contains rectification column (201) having upper part (202), cooling device (203) and condensate separator (206) having liquid removing hole (207). Upper part (202) of the column is connected by means of first channel (203) to specified cooling device (204), and cooling device (204) is connected by means of second channel (205) to specified condensate separator (206). The plant contains cryogenic pump tank (100) having internal space (103) passing between tank bottom (101) and tank top (102), liquid supply zone (104) located at the first distance from tank bottom (101) in the direction of tank top (102), and liquid removing zone (105) located at the second distance from tank bottom (101) in the direction of tank top (102). The specified second distance is greater than the specified first distance. There is liquid supply hole (106) in liquid supply zone (104), while internal space (103) of the tank in liquid supply zone (104) is at least partially divided by partition (107) having at least one surface. The specified partition is located in such a way that at least one of its surfaces (108) is oriented in the direction of liquid supply hole (106). Liquid supply hole (106) available in tank (100) is flow-connected to specified liquid removing hole (207).

EFFECT: technical result is obtaining the pump tank and rectification plant for low-temperature rectification.

5 cl, 4 dwg