Shortcut Design of Fully Thermally Coupled Distillation Systems with Postfractionator

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• 作者：Lorena E. Ruiz-Mari虂n ; Nelly Rami虂rez-Corona ; Angel Castro-Agu虉ero ; Arturo Jime虂nez-Gutie虂rrez
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2011
• 出版时间：May 18, 2011
• 年：2011
• 卷：50
• 期：10
• 页码：6287-6296
• 全文大小：1029K
• 年卷期：v.50,no.10(May 18, 2011)
• ISSN：1520-5045

文摘

A modification to the fully thermally coupled distillation system, or Petlyuk column, in which a postfractionator is added has recently been considered. The modified structure incorporates the postfractionator aiming for a better match in the composition of the interlinking stages of the Petlyuk column. In this paper we present a design method for the modified thermally coupled system with postfractionator. A shortcut method is used to provide the minimum reflux conditions of the system, and the boundary value method is used to complete the design task. The effectiveness of the design method is shown through the application to several case studies. The effect of the postfractionator on the performance of the Petlyuk system is also analyzed.