Simulation Calculation of a Distillation Process for SeparatingWater- Formaldehyde-Trioxane Mixture

A distillation column is used for preparing trloxane from the concentratedformaldehyde aqueous solution with a reboiler performing as a reactor. Using a relaxationmethod this article simulates the process for separating the mixture ofwater-formaldehyde-trioxane.Calculation results show that the:oncentration of trioxanevaries rather slowly along the column even having high relative volatihty in the mixure.