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A numerical method for predicting the performance of a randomly packed distillation column

โœ Scribed by Guo Biao Liu; K.T. Yu; X.G. Yuan; C.J. Liu

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
689 KB
Volume
52
Category
Article
ISSN
0017-9310

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โœฆ Synopsis

A numerical method is proposed for modeling the distillation process in a randomly packed column. The proposed model is able to predict the axial and radial concentration distributions along the column without introducing the empirical turbulent Schmidt number or the experimentally measured turbulent mass transfer diffusivity. The present model involves the differential mass transfer equation set and the accompanied computational fluid dynamics (CFD) formulation with the conventional k ร€ e model. For the closure of mass transfer equation, the recently developed two-equation model is adopted, which consists of the equations for expressing the fluctuating concentration variance c 2 and its dissipation rate e c [Z.M.

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