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Shortcut design of reactive distillation columns

Avami, A ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.ces.2011.12.021
  3. Abstract:
  4. Shortcut design methods can be valuable tools for rapid screening of different separation process alternatives to assess feasibility and determine minimum energy demand. This work presents a variant of the feed angle method (Kraemer et al., 2011), which applies to single- and double-feed reactive distillation columns. The proposed method relies on pinch point analysis and determines the minimum energy demand from the calculation of a tray at the feed pinch. It is fully algorithmic and insensitive to impurities in product specifications. Its validity and performance is illustrated by a variety of case studies covering multi-component and multi-reaction systems, mixtures with potential liquid-liquid phase split, and double-feed columns. The results show that the method is sufficiently accurate and computationally efficient, even for highly non-ideal systems and complex configurations
  5. Keywords:
  6. Chemical processes ; Energy demand ; Reactive distillation ; Chemical process ; Energy demands ; Pinch points ; Reaction engineering ; Reactive distillations ; Distillation ; Energy management ; Distillation columns
  7. Source: Chemical Engineering Science ; Volume 71 , 2012 , Pages 166-177 ; 00092509 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S0009250911008773