Simulation of Continuous Esterification Process of Polyester Polyols

Based on the kinetic and thermodynamic equations, a comprehensive mathematical model for the con- tinuous esterification process of polyester polyols was developed, which was carried out in an innovational bub- bling reactive distillation tower （BRDT） at atmospheric pressure. In this new type of rea...

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Published inChinese journal of chemical engineering Vol. 21; no. 3; pp. 246 - 252
Main Author 陈礼科 奚桢浩 秦榛 赵玲 袁渭康
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.03.2013
Subjects
Column packings
Columns (process)
continuous operation
Esterification
mathematical model
Mathematical models
poly (ethylene adipate)
Polyester resins
Polyols
reactive distillation
Reactors
Simulation
反应蒸馏塔
大气压力
数学模型
热力学方程
聚酯多元醇
过程模拟
连续酯化
酯化反应
mathematical model
reactive distillation
continuous operation
esterification
poly (ethylene adipate)
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Summary:Based on the kinetic and thermodynamic equations, a comprehensive mathematical model for the con- tinuous esterification process of polyester polyols was developed, which was carried out in an innovational bub- bling reactive distillation tower （BRDT） at atmospheric pressure. In this new type of reactor, direct esterification between ethylene glycol and adipic acid was accomplished efficiently and rapidly. A bench BRDT with the height of 2 m was applied for the esteriflcation process of l~oly （ethylene adlpate） （P＇EA）. In the continuous operation, Hn- ear oligomers were discharged from the bottom of the column, while water passed a few column trays and a pack- ing section as a condensation byproduct. The influence of major operating conditions on reactor performance was also simulated. Simulation results were in good agreement with experimental data, providing a strategy for devel- oping and optimizing this process.
Bibliography:poly （ethylene adipate）, esterification, continuous operation, mathematical model, reactive distillation
11-3270/TQ
Based on the kinetic and thermodynamic equations, a comprehensive mathematical model for the con- tinuous esterification process of polyester polyols was developed, which was carried out in an innovational bub- bling reactive distillation tower （BRDT） at atmospheric pressure. In this new type of reactor, direct esterification between ethylene glycol and adipic acid was accomplished efficiently and rapidly. A bench BRDT with the height of 2 m was applied for the esteriflcation process of l~oly （ethylene adlpate） （P＇EA）. In the continuous operation, Hn- ear oligomers were discharged from the bottom of the column, while water passed a few column trays and a pack- ing section as a condensation byproduct. The influence of major operating conditions on reactor performance was also simulated. Simulation results were in good agreement with experimental data, providing a strategy for devel- oping and optimizing this process.
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ISSN:1004-9541
2210-321X
DOI:10.1016/S1004-9541(13)60472-6