METHOD OF LIQUID TRANSFER FROM TRAY TO TRAY OF TOWER IN PROCESS OF MASS EXCHANGE BETWEEN VAPOUR AND LIQUID Russian patent published in 2009 - IPC B01D3/00 B01D3/20 

FIELD: production processes.

SUBSTANCE: invention refers to mass exchange processes in tray towers and may be used in such industries as chemical, petroleum, petrochemical, food-manufacturing industry. Method of liquid transfer during process of mass exchange between vapour and liquid includes periodical liquid transfer from tray to tray in tower, which contains even or odd number of trays, at least one device for liquid transfer from tray to tray which contains moving elements connected to drive mechanism which actuates them from time to time. Liquid transfer from tray to tray is performed in two successive stages which are repeated from time to time. At first stage simultaneous transfer of liquid only from every odd tray as per arrangement order to every even tray as per arrangement order is performed all along the height of tower using device for liquid transfer from tray to tray. At second stage simultaneous transfer of liquid only from every even tray as per arrangement order to every odd tray as per arrangement order is performed all along the height of tower, and liquid from the last tray as per arrangement order, no matter whether odd or not, is transferred to tower volume.

EFFECT: possibility of mass exchange process in one tower both in mode of continuous supply of vapour flow to tower and mode of pulse supply of vapour flow in large ranges of values of vapour pressure and liquid temperature, thus enhancing efficiency of mass exchange process in tower.

3 dwg