Plantwide Design of Ideal Reactive Distillation Processes with Thermal Coupling

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• 作者：San-Jang Wang ; Hao-Yeh Lee ; Jui-Hung Ho ; Cheng-Ching Yu ; Hsiao-Ping Huang ; Ming-Jer Lee
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2010
• 出版时间：April 7, 2010
• 年：2010
• 卷：49
• 期：7
• 页码：3262-3274
• 全文大小：870K
• 年卷期：v.49,no.7(April 7, 2010)
• ISSN：1520-5045

文摘

Process intensification is aimed to integrate different processes in design to reduce energy consumption and capital investment, as well as to achieve environmental and safety benefits. Reactive distillation and thermally coupled distillation are examples of such process intensification. In this study, the performance of thermally coupled reactive distillation, a technology combining reactive distillation and thermally coupled distillation, is investigated for ideal quaternary reaction systems with different rankings of relative volatility. Possible configurations of thermally coupled reactive distillation are designed for systems of types I_R, II_R, and III_R with the excess design and type II_P with the stoichiometric design. Reactive distillation with thermal coupling is demonstrated to provide better energy efficiency than conventional reactive distillation. The remixing phenomenon associated with thermodynamic inefficiency in conventional distillation sequences can be reduced or eliminated by implementing thermal coupling between columns.