FIELD: production of drugs, perfumes and potable water.
SUBSTANCE: proposed plant includes rectifying column with contact unit the vapor-liquid interaction surface, unit for preparation of water vapor from initial water at concentration of 1H2 16O equal to C1, unit for delivery of water vapor to rectifying column, unit for condensation of water vapor at concentration of 1H2 16O equal to C2 in condenser mounted in upper part of rectifying column; C2>C1. Proposed method consists in accumulation of part of condensate in form of condensed light water. Rectifying column is made in form of vapor-liquid interaction surface between descending and ascending flows of vapor on contact unit surface when main flow of liquid and main flow of vapor are directed along axis of column. Pressure of vapor in rectifying column ranges from 0.05 to 0.6 bar; output of water is 0.001 to 0.25 of total volume of water vapor passed through rectifying column. Contact unit may be made in form of plates or structurized or randomizirized packing. Proposed method makes it possible to produce light water at content of 1H2 16O lesser than 997.13 g/kg at total content of 1H2 17O, 1H2 18O, 1HD16O, 1HD17O, 1HD18O, D2 16O, D2 17O, D2 18O not exceeding 2.87 g/kg of total amount of H2O.
EFFECT: enhanced efficiency.
10 cl, 1 dwg, 2 tbl, 1 ex
