Mass Transfer in a Closed Stirred Gas / Liquid Contactor Part 1 : The Mass Transfer Rate
نویسنده
چکیده
Liquid phase mass transfer rates kLS for the absorption of oxygen in tap water and in aqueous ionic solutions have been determined in two closed stirred tank contactors for a power input between 3 and 70 W/kg and (impeller diameter)f(tank diameter) ratios DifT of 0.3, 0.35 and 0.4. The contactors had diameters of 0. I9 and 0.6 m. The dispersed phase fraction was 1% by volume in all experiments. The values of kLS were determined using two different techniques: (1) a transient physical absorption method; and (2) the sulphite method. The corresponding results were in good agreement with each other. For a gas fraction of 1% by volume the results could be well correlated by the following equations..
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تاریخ انتشار 2001