Influence of Reaction Pressure on Semibatch Esterification Process of Poly(ethylene terephthalate) Synthesis |
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| Authors: | Himanshu Patel Gunter Feix Reinhard Schomäcker |
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| Institution: | 1. Technical University of Berlin, Institute of Chemistry, Chemical Engineering Group, Sekr. TC 8, Strasse des 17. Juni 124-128, D-10623 Berlin, Germany;2. Equipolymers GmbH, A Dow and PIC Joint Venture, Building F-17, D-06258 Schkopau, Germany |
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| Abstract: | Summary: Influence of esterification pressure on oligomeric properties was studied by using a semibatch reactor. Esterification model for semibatch process was further improved by considering EG reflux in the column. It was observed that increasing the reaction pressure decreases EG/water ratio in the column while increasing the EG/TPA feed ratio increases EG/water ratio in the column. By controlling the EG reflux in a semibatch reactor, it is possible to generate oligomers with similar oligomeric properties observed at different stages of continuous process. |
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| Keywords: | carboxyl groups esterification modeling PET pressure |
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