FIELD: process engineering.
SUBSTANCE: pressure at epuration distiller column bottom is adjusted by feed of heating steam thereto. Hydro selective water feed to top troughs of epuration column is controlled. Cooling water flow fed to epuration column refluxer is adjusted. Note here that cooling water flow rate in epuration column refluxer is adjusted as the difference between preset and current condensate temperatures at the outlet of said refluxer.
EFFECT: higher quality of produced epurate, lower consumption of heating steam, higher epuration column efficiency.
1 dwg
