Total reflux simulation of packed column distillation

This paper presents a simulation algorithm with a rate-based model for a pa cked distillation column at total reflux, The proposed algorithm consists of 1) composition and temperature profile c alculation, which is slightly modified from the one for steady-state contin uous distillation at finite reflux, and 2) composition correction for accel erating convergence with the overall theta method based on the component ma terial balance considering liquid hold-up within the distillation column. Simulation results are compared with the experimental results of a ternary system obtained from a 0.21 m diameter packed distillation column. Fairly g ood agreement is obtained, though proper evaluation of the effective interf acial area and liquid hold-up distribution is essential for better simulati on.