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Steady‐state and transient behavior of a continuous polyethylene terephthalate condensation polymerization process. I. Melt transesterification stage
Author(s) -
Khan A. A.,
Choi K. Y.
Publication year - 1989
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1989.070370310
Subject(s) - transesterification , diethylene glycol , materials science , polyethylene terephthalate , dimethyl terephthalate , catalysis , ethylene glycol , transient (computer programming) , polymerization , chemical engineering , steady state (chemistry) , continuous stirred tank reactor , polymer chemistry , polyester , organic chemistry , chemistry , polymer , composite material , computer science , engineering , operating system
The steady‐state and transient behavior of a continuous stirred‐tank reactor for melt transesterification of dimethyl terephthalate with ethylene glycol in the presence of metal acetate catalyst is presented. The kinetic model includes the main transesterification reactions and side reactions leading to diethylene glycol and carboxylic acid end groups. The effect of various reactro operating parameters such as [EG]/[DMT] mole ratio and feed catalyst concentration on the product distribution under steady‐state reactor operating conditions is analyzed. The dynamic process model has also been solved and the reactor transients to step changes in various reactor parameters are reported.