SIMULATION AND THERMAL INTEGRATION SRV IN EXTRACTIVE DISTILLATION COLUMN

The present work aims at studying the application of the thermal integ ration Secondary Reflux and Vaporization (SRV) in extractive distillat ion. This technique is based on heat exchange between the rectifying a nd stripping sections, using the natural temperature difference betwee n these two sections of the extractive distillation column for an etha nol/water/ethylene glycol mixture. The calculated results are compared with those relative to extractive distillation for an acetone/methano l/water mixture. A substantial reduction in the energy consumption is observed when comparing integrated columns with conventional ones.