Shortcut method for kinetically controlled reactive distillation systems

Abstract:
This article addresses a geometric-based shortcut method for reactive distillation. The rectification body method for non-reactive distillation (Bausa et al, 1998 and Watzdorf et al., 1999), the concept of critical Damköhler numbers (Buzad and Doherty, 1994), and the geometric design method for reactive distillation (Lee et al., 2001a,b) are combined with a new eigenvector analysis of pinch points. This shortcut method provides us with a minimum or reasonable Damköhler number for a given heat duty. Also, the shortcut results give us the design implication of how to effectively distribute reaction zones inside a column. This method can be used for a fast screening of process design alternatives and for an initialization of rigorous optimization.

Keywords:
Shortcut method, Reactive distillation.

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