METHOD FOR FRACTIONATING AN ALCOHOL-CONTAINING LIQUID, AND DEVICE FOR IMPLEMENTING THE SAME

摘要

The invention is related to fractionating distillation of alcohol-containing liquids in a centrifugal field and can be used to separate the ester-aldehyde fraction (EAF) together with intermediate mixtures. The source alcohol-containing liquid is divided in the device into two flows, one of which is set in rotary motion, and the second one is heated additionally to the alcohol-containing liquid boiling point and ejected through a random packing and a mesh to convert the liquid to a steam-gas-liquid emulsion; the emulsion is passed through a mesh in a centrifugal field to increase the inter-phase surface and to form ultrasonic waves; then it is fed to the rotating first flow of the alcohol-containing liquid, from which ester-aldehyde fraction and transient fractions in the form of floating bubbles with vapours of those fractions and gases dissolved in the alcohol-containing liquid are released. The device comprises a base 1 having a bubbler 2 with a thermometer 16 secured to it; a rotor drive 3; a top part of a stator 6 supported by legs (not shown); a steam separator 8 with a thermometer 17; an alcohol heater 9. A bubbler 2 is connected to the heater 9 and the steam separator 8 by a pipeline. Fastened to the top part of the bubbler 2 is a vapour extraction pipeline 22 connected to a released vapour condenser 10 provided with a condensate sensor 20 to which a condensate outlet pipeline 7 is connected. Also connected to the bubbler 2 is a transparent pipeline 12, one end of which is positioned opposite to the rotor 3, and the other above the top part of the stator 6. The rotor 3 consists of 2 disks connected to each other by vanes 4; at least one mesh 5 is placed on the inner parts of the vanes over the entire inside periphery of the rotor 1. The upper disk of the rotor 2 has an opening for passing the alcohol-containing liquid through a symmetrically disposed opening in the top part of the stator 6, a pipeline 13 connected to the bottom part of the tank of the steam separator 8 being secured to said symmetrically disposed opening. The group of inventions provides reduction of energy consumption.