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He Renwen (Beijing College of Ohemical Fiber Technology)This paper is concerned with the chemical engineering kinetics of main and side reactions in a polyester plant using DMT as raw material. By cooperating the rate expressions with relevent chemical and physical equations we developed a comprehensive mathematical model for describing the batch process in a polyester plant. In the paper, the principle and method for developing the model are introduced and the kinetic data obtained by experiments are given. The model can be applied for developing new polyester processes as well as for searching suitable process conditions, so as to improve the quality and increase the throughput of the product.
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