FIELD: chemical engineering. SUBSTANCE: vacuum distillation plant to be used in petrochemical, chemical, food, and pharmaceutical industries is additionally provided with third jet vacuum pump with its inlet, with respect to injected stream, is connected to liquid pump and upper vapor space of principal separator, whereas inlet block of plant is equipped with liquid-vapor connecting pipe to spray raw material, to which inlet of third jet vacuum pump is connected. Further, additional separator-phase splitter is provided with sprinkling circuit and liquid-withdrawal pipe. Efficiency of plant is enhanced by way of intensifying mass-exchange processes in vacuum column and enabling use of withdrawn highly volatile fractions as final product for process purposes owing to increased compression ratio and evacuation degree. EFFECT: enhanced efficiency of plant. 2 cl, 1 dwg
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