naa a22 4500 510819818 CHVBK 20180411083525.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11814-013-0175-8 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0175-8 Simulation and optimization of extractive distillation sequence with pre-separator for the ethanol dehydration using n-butyl propionate [Elektronische Daten] [Sanjay Shirsat, Shrikant Dawande, Seema Kakade] Extractive distillation is the most promising alternative for the ethanol-water separation than azeotropic and pressure swing distillation using suitable solvent n-Butyl propionate. We have studied, simulated, optimized and economically evaluated the separation of a mixture of 50 mole% ethanol and 50 mole% water to treat the 16 Kmol/hr (512.67 kg/hr) of the original mixture. Rigorous simulation and optimization has been carried out by means of a software CHEMCAD version 6.5 using thermodynamic model UNIQUAC with binary interaction parameters. The simulations allow us to conclude that extractive distillation is more economical and trustworthy than pressure swing distillation due to the relative pressure insensitive nature of the ethanol-water mixture after the azeotropic composition. The separation of 99.7% of ethanol from ethanol water mixture claim by Mulia-Soto, Flores-Tlacuahuac, 2011 is contradictory as the feasibility for the operating pressure of 10 atm with or without heat integration. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Simulation nationallicence Optimization nationallicence Ethanol Dehydration nationallicence n-Butyl Propion nationallicence Shirsat Sanjay Department of Chemical Engineering, Laxminarayan Institute of Technology, 440033, Nagpur, India aut Dawande Shrikant Department of Chemical Engineering, Laxminarayan Institute of Technology, 440033, Nagpur, India aut Kakade Seema Department of Chemical Engineering, Laxminarayan Institute of Technology, 440033, Nagpur, India aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/12(2013-12-01), 2163-2169 0256-1115 30:12<2163 2013 30 11814 https://doi.org/10.1007/s11814-013-0175-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0175-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shirsat Sanjay Department of Chemical Engineering, Laxminarayan Institute of Technology, 440033, Nagpur, India aut NATIONALLICENCE 700 1- Dawande Shrikant Department of Chemical Engineering, Laxminarayan Institute of Technology, 440033, Nagpur, India aut NATIONALLICENCE 700 1- Kakade Seema Department of Chemical Engineering, Laxminarayan Institute of Technology, 440033, Nagpur, India aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/12(2013-12-01), 2163-2169 0256-1115 30:12<2163 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer