✦ LIBER ✦

Efficiency in bubble cap distillation columns

✍ Scribed by C.T. Everitt; H.P. Hutchison

Publisher: Elsevier Science
Year: 1966
Tongue: English
Weight: 170 KB
Volume: 21
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(66)87011-2

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✦ Synopsis

SEVERAL investigations have shown that the performance of a distillation column appears to be a function of composition [1, 2]. This variation in performance has been observed for many different systems and column types, and the reason would appear to be one which is general to the process of rectification rather than specific to any given circumstances. This communication is concerned with the variation in performanee for bubble cap columns.

The description of mass transfer on a bubble cap plate must necessarily be considerably simplified due to the complex fluid dynamics of such a device. If one assumes plug flow of vapour and a liquid which is well mixed vertically, then for an area of the tray where the liquid composition is uniform the basic rate equations can be integrated to give [3]

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