Assessment of the Effect of Feed Plate Location on Interactions for a Binary Distillation Column

The paper considers the effect of feed plate location on the interactions in a seven plate binary distillation column. The mathematical model of the distillation column is deduced based on the equations of mass and energy balances for each stage, detailed model for both reboiler and condenser, and heat transfer equations. The Dynamic Relative Magnitude Criterion, DRMC is used to assess the interactions in different feed plate locations for a seven plate (Benzene-Toluene) binary distillation column ( the feed plate is originally at stage 4). The results show that whenever we go far from the optimum feed plate position, the level of interaction augments.




References:
[1] F. G Shinskey, Process Control Systems. Mc Graw Hill, 1979.
[2] A.Khelassi, R. Bendib and J. A. Wilson, "Assessment of Interactions in
Process Control System". ICDSA, Antalya; Turkey, 2004.
[3] A. Khelassi, "An Algorithmic Method for the Assessment of Control
Structures in a Distillation Column". 7th International Conference on
Chemistry and its Role in Development, Egypt, 14-17, 2003.
[4] A.Khelassi and C. Bouyahiaoui, "Nouvelle Approche Pour Réduire Le
Phénomène D-interaction dans les Colonnes de Distillation" IMPAC,
IAP Boumerdes, Algeria, 227-232, 2000.
[5] B. Kuo, "Automatic Control System", Sixth Edition, Prentice Hall,
1991.
[6] J. P Gagnepain and D. Seborg, "Analysis of Process Interaction with
Application to Multiloop Design". Ind. Eng. Chem. Process Des. Dev,
21, 1, 1982.