FIELD: process engineering.
SUBSTANCE: claimed method comprises feeding the stock and desorbent flows to two different points with the help of two conveyance lines. It includes flushing of the first mid transfer line at first flow rate during the first part of step duration. It includes flushing of the first mid transfer line at second flow rate during the second part of step duration. this method involves draining of larger fluid volume from mid transfer line during one of first part and second part of step duration than during the other of first and second parts of step duration.
EFFECT: higher efficiency of operation.
10 cl, 13 dwg
