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Characterisation of two-phase flow in plate columns

Ho, G.E.ORCID: 0000-0001-9190-8812, Muller, R.L. and Prince, R.G.H. (1969) Characterisation of two-phase flow in plate columns. In: Pirie, J.M., (ed.) Distillation. Institution of Chemical Engineers, London, UK, 2:10-2:21.



Methods based on two-phase flow analysis are described which are used to characterise the flow regimes commonly observed in perforated plate columns.

A model for the cellular foam regime based on liquid flow in a structure of regular pentagonal dodecahedra has been described. This shows the relationship between gas superficial velocity, gas hold-up fraction, and bubble size and is used to explain the break-down of cellular foam to froth.

The spray regime has been described as a fluidised bed of drops produced by liquid break-up in pulsating vapour jets. Drop stability and terminal velocity considerations are used to predict the limits of the spray regime. The transition to froth is explained in terms of the fluidisation model.

Item Type: Book Chapter
Publisher: Institution of Chemical Engineers
Copyright: © 1969 Institution of Chemical Engineers
Other Information: Conference title: International Symposium on Distillation, London - England, 8 - 10 September 1969
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