In this study, the investigation is expanded on a homogeneous azeotropic mixture, which thermodynamic properties match very well with the thermodynamic model used. (Figure ). The working conditions and predefined parameters are tabulated in Table , whereas concentrations are expressed from acetone, and LP/HP refers to low/high-pressure column, respectively. At the beginning of the dual process, the reboiler is filled with U N 0 =10(l), liquid hold-up on the trays is set to U i 0 =0.1(mol) for i = 0,...N. For the boil-up, the constant value for the LP step is set to V 1 =11(mol/h), however, at V 2 = [11-13] (mol/h) for the HP step. The low-pressurized column work with the total number of trays N 1 =23, whereas the high-pressurized column at even N 2 =13.