Research Article Open Access

Internal Model Control of Distillation Column With Optimal Pairing Technique

Abstract

The RGA provides a quantitative approach to the analysis of the interactions between the controls and the output, and thus provides a technique for pairing manipulated and controlled variables to generate a control scheme. In this paper, bottom concentration and distillate concentration of (2x2) distillation column is maintained at desired level in methanol and water separation process. Relative gain Array is applied to convert the MIMO system into multiple SISO system. Based on the results obtained from the RGA, Internal Model Controller is designed for the best pairs of manipulated and controlled variable in the separation process in the distillation column. Thus the desired concentration of the bottom and distillate (top) in the distillation column is maintained.

D.Sankaranarayanan, G.Deepakkumar