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Influence of Reaction Pressure on Semibatch Esterification Process of Poly(ethylene terephthalate) Synthesis
Author(s) -
Patel Himanshu,
Feix Gunter,
Schomäcker Reinhard
Publication year - 2007
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200751308
Subject(s) - ethylene , process (computing) , materials science , fractional distillation , chemical engineering , column (typography) , chromatography , polymer chemistry , chemistry , catalysis , organic chemistry , mathematics , computer science , geometry , connection (principal bundle) , distillation , engineering , operating system
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.