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1616132 
Journal Article 
Optimization study on the azeotropic distillation process for isopropyl alcohol dehydration 
Cho, JB; Jeon, JK 
2006 
1 
Korean Journal of Chemical Engineering
ISSN: 0256-1115
EISSN: 1975-7220 
23 
1 
1-7 
English 
WOS:000235407600001 
Modeling and optimization work was performed using benzene
as an entrainer to obtain a nearly pure anhydrous isopropyl alcohol product from dilute aqueous
IPA mixture through an azeotropic distillation process. NRTL liquid activity coefficient model
and PRO/II with PROVISION 6.01, a commercial process simulator, were used to simulate the overall
azeotropic distillation process. We determined the total reboiler heat duties as an objective
function and the concentration of IPA at concentrator top as a manipulated variable. As a result,
38.7 mole percent of IPA at concentrator top gave the optimum value that minimized the total
reboiler heat duties of the three distillation columns. 
Azeotropic distillation; entrainer; NRTL liquid activity coefficient model; simulation; optimization