Abstarct: Abstract In the production of bioethanol, the purity of the ethanol product is very low. On the other hand, the mixture of ethanol and water has an azeotrope, and thus its separation in a tower by common processes is not possible. For this reason, the structure of three towers is generally used in extractive distillation, which includes pre-concentrating towers, extractive distillation and solvent recovery. In this research, these three towers are integrated in a walled extractive distillation tower and its performance is analyzed. After that, in order to improve the thermal performance of the process, the steam recondensation structure is used as a heat pump to supply the necessary energy for the side reboiler of the presented distillation tower. In addition, to further improve the thermal performance of this process, the organic Rankine cycle has been used to recover the thermal energy wasted in the auxiliary condenser and the side condenser. The designed process has been analyzed in terms of providing desired products, design goals with predetermined specifications, thermal performance and also in terms of exergy. The research results showed that the common process including three towers has an energy consumption of 33.05 megawatts and an exergy efficiency of 21.8%. By upgrading the common structure to the walled tower structure, this efficiency increases to 42.9% and its energy consumption decreases to 27.12 MW. Upgrading the walled distillation tower by using the steam recondensation cycle can increase the yield to 44.6% and by using the organic Rankine cycle, the yield increases to 47.4%.. In this way, the use of the walled tower structure has the greatest effect in improving the efficiency of this separation process. Although, by using the organic Rankine cycle, we can produce 175 kilowatts of work in addition to refining bioethanol.