Evaluation of a two-temperature control structure for a two-reactant/two-product type of reactive distillation column

Kaymak D. B., LUYBEN W. L.

CHEMICAL ENGINEERING SCIENCE, vol.61, no.13, pp.4432-4450, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 61 Issue: 13
  • Publication Date: 2006
  • Doi Number: 10.1016/j.ces.2006.01.050
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.4432-4450
  • Keywords: reactive distillation, process design, process control, simulation, separation, methyl acetate, SYSTEMS
  • Istanbul Technical University Affiliated: Yes


Several different control structures have been proposed for reactive distillation columns. The appropriate control structure depends on the flowsheet and on the type of reactions occurring in the column. If two reactants are involved and if it is desirable to operate the process without any excess of reactant, it is necessary to manage the fresh feed streams so that the stoichiometry is exactly balanced. A composition analyzer that measures an internal composition in the column is often required. However, if two products are produced, it is possible to avoid the use of an analyzer by using two temperatures in the column to adjust the two feed streams. This type of structure was proposed by Roar et al. [Roat, S., Downs. J., Vogel, E., Doss, J., 1986. Integration of rigorous dynamic modeling and control system synthesis for distillation columns. In: Chemical Process Control-CPC III. Elsevier, Amsterdam.] for the ideal reaction A + B <-> C + D in one of the earliest papers dealing with reactive distillation control.