Correlating gas-liquid co-current flow hydrodynamics in packed beds using the\+i\ F\-i\-function concept

A phenomenological model based on the generalization of the single-phase Forchheimer equation was recently proposed for predicting pressure drop and phase saturations in gas-liquid co-current horizontal and downward high-pressure packed beds. Here, we extend the model to packed-bubble (co-current up...

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Veröffentlicht in:Journal of chemical technology and biotechnology (1986) 2005-01, Vol.80 (1), p.107-112.
Hauptverfasser: Radilla, Giovanni, Fourar, Mostafa, Larachi, Faical
Format: Artikel
Sprache:eng
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Zusammenfassung:A phenomenological model based on the generalization of the single-phase Forchheimer equation was recently proposed for predicting pressure drop and phase saturations in gas-liquid co-current horizontal and downward high-pressure packed beds. Here, we extend the model to packed-bubble (co-current upflow) and trickle-bed operation using phase saturation power laws similar to Corey relative permeabilities. The power-law exponents were fitted using a wide pressure gradient and liquid saturation databank in co-current up/downward packed-bed flows. It was found that this approach, as well as other in the literature developed for down-flow reactors apply also to upward flows; the prediction accuracy was comparable for both flow directions to existing literature approaches.
ISSN:0268-2575
DOI:10.1002/jctb.1147