Generic Lumped Reactive Distillation Volume Element

2 Generic Lumped Reactive Distillation Volume Element 

Component, energy and entropy balances are developed in the GLRDVE. The entropy and, in particular, the entropy production rate are of paramount importance to determine exergy losses and the responsiveness of the process. The balances lead to the following set of DAEs, 

The energy flux associated with the interface mass and heat transfer is composed of a measurable heat flux and the partial molar enthalpies brought by the component fluxes, namely, 

The entropy balance in the transient state at a macroscopic level is given by the net amount of entropy transferred into the volume element per unit time and the amount of entropy used/produced in the control volume per unit time. Thus, the entropy balance for a given phase (a) can be stated as. 

Alternatively, the entropy balance can be expressed in terms of the entropy density and the fluxes of entropy density (Kjelstrup and Bedeaux, 2001 Marquardt, 2004), 

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Figure 6.2. Schematic representation of the generic lumped reactive distillation volume element (GLRDVE). Nomenclature feed flowrate of phase (a) at position i flowrate of side...

Answer. Improved residue curve mapping technique, multilevel modeling approach, dynamic optimization of spatial and control structures, steady-state and dynamic behavior analysis, generic lumped reactive distillation volume element, multiobjective optimization criteria. 

GLRDVE generic lumped reactive distillation volume element... 

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