Fractional order models for a cryogenic separation column

The chemical processes developed in the ¹³C-isotope separation plant are very complex and many details are not yet known in totality. The authors are concerned with the problem of developing effective and readily useful techniques for modeling and control of the isotope separation plant. In the present paper is presented a variant of continuous linear model. Recent studies show that fractional control methods are widely used and that non integer models describe completely the distributed system´s behavior. Based on these studies the authors propose two fractional models of the isotope separation plant. The results are validated and compared by simulation, based on experimental data.