✦ LIBER ✦

Dynamic Gas Disengagement in a High-Pressure Bubble Column

✍ Scribed by Uwe Jordan; Alok K. Saxena; Adrian Schumpe

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 648 KB
Volume: 81
Category: Article
ISSN: 0008-4034
DOI: 10.1002/cjce.5450810322

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✦ Synopsis

Abstract

Bubble disengagement after stopping the gas supply is analyzed based on the concept of constant slip velocity; it is compared with the approaches used by previous investigators. The technique has been applied to study the gas density effect (0.17 to 46.6 kg·m^—3^) on the gas hold‐up structure in a bubble column with organic liquids (toluene, ethanol, 1‐butanol, decalin) and tap water. With increasing gas density, the large bubble rise velocity decreases; this indicates smaller bubble size. The small bubble hold‐up is correlated with the gas and the liquid properties whereas the large bubble hold‐up is hardly affected.

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