Computation of Feasible Solutions in Multicomponent Distillation Columns Using Stage-to-Stage Method

Hayatoshi Sayama, Yoshimasa Kameyama, Kazuhiko Suzuki

Research output: Contribution to journalArticle


This paper presents a simulation method for obtaining feasible and optimal solutions for multicomponent distillation columns. The method employs a stage-to-stage computational procedure by adjusting the bottom liquid compositions as independent variables. For infeasible solutions, computation is continued by assuming the vapor-liquid equilibrium ratio to be constant, and the objective function is evaluated to find both feasible and infeasible solutions. By minimizing the objective function iteratively, feasible solutions are obtained at a location near the optimal solutions. The McCabe-Thiele method used as a trial-and-error method is proved to converge by use of the present procedures. Numerical results are shown for ideal mixtures of solutions.

Original languageEnglish
Pages (from-to)152-158
Number of pages7
Issue number2
Publication statusPublished - Jan 1 1992



  • Feasible Solutions
  • McCabe-Thiele Method
  • Multicomponent Distillation
  • Simulation
  • Stage-to-Stage Method

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this