✦ LIBER ✦

Design and implementation of an extended observer for the polymerization of polyethylenterephthalate

✍ Scribed by Paul Appelhaus; Sebastian Engell

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 529 KB
Volume: 51
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(96)00049-8

No coin nor oath required. For personal study only.

✦ Synopsis

In the batch polymerization of polyethylenterephthalate, the main reaction is an equilibrium-reaction. The removal of ethylenglycol from the melt determines the velocity of the polycondensation process, because it shifts the equilibrium to the side of chain growth. In this paper, we report about the implementation of an observer, which is based on a polymerization model in a pilot plant reactor. The observer is able to determine two important concentrations in the polymer melt as well as the product of mass transfer coefficient and specific surface. The knowledge of the latter parameter offers new possibilities for improved process control.

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