Total Reflux Simulation of Packed Column Distillation.

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  • Mori Hideki
    Department of Applied Chemistry, Nagoya Institute of Technology
  • Ito Chikara
    Department of Applied Chemistry, Nagoya Institute of Technology
  • Oda Akiyoshi
    Department of Applied Chemistry, Nagoya Institute of Technology
  • Aragaki Tsutomu
    Department of Applied Chemistry, Nagoya Institute of Technology

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This paper presents a simulation algorithm with a rate-based model for a packed distillation column at total reflux.<BR>The proposed algorithm consists of 1) composition and temperature profile calculation, which is slightly modified from the one for steady-state continuous distillation at finite reflux, and 2) composition correction for accelerating convergence with the overall θ method based on the component material balance considering liquid hold-up within the distillation column.<BR>Simulation results are compared with the experimental results of a ternary system obtained from a 0.21 m diameter packed distillation column. Fairly good agreement is obtained, though proper evaluation of the effective interfacial area and liquid hold-up distribution is essential for better simulation.

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