Gas-liquid mass transfer in "dead-end"autoclave reactors

Chaudhari, R. V. ; Gholap, R. V. ; Emig, G. ; Hofmann, H. (1987) Gas-liquid mass transfer in "dead-end"autoclave reactors Canadian Journal of Chemical Engineering, 65 (5). pp. 744-751. ISSN 0008-4034

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Gas-liquid volumetric mass transfer coefficients, (kLa), have been obtained for "dead-end"autoclave reactors operated in two different modes: (a) gas introduced into the gas phase, and (b) gas introduced through a dip-tube in the liquid. Three different methods of kLa determination have been compared. Effects of agitation speed, impeller diameter, gas to liquid volume ratio (Vg/VL), position of the impeller and reactor size on kLa have been investigated. The kLa data were found to be correlated as: kLa = 1.48 × 10-3 (N)2.18 (Vg/VL)1.88 (dI/dT)2.16 (h1/h2)1.16 The critical speed of surface breakage, at which transition from the surface convection to the surface entrainment regime occurs, was also determined for different impeller positions, impeller diameters and gas to liquid volume ratios.

Item Type:Article
Source:Copyright of this article belongs to Canadian Society for Chemical Engineering.
Keywords:Gas-liquid Mass Transfer; Dead-end Agitated Reactor; Dynamic Absorption Technique
ID Code:7571
Deposited On:25 Oct 2010 11:08
Last Modified:30 May 2011 05:00

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