Abstract
The correlations available in the literature cannot be used to estimate the liquid-phase mass transfer coefficient for viscous solutions. Even correlat for viscosities of only 10 mPa s. This contribution is a report on k L a measurements performed by stripping oxygen from aqueous solutions in was varied by dissolving various amounts of sodium alginate, glycerol or polyethylene glycol in the water. The viscosity not only had an effect on the diffusivity estimations both for data interpretation and for design work, but it also had an additional net effect such that k L a/ D 1/2 decreased in approximately inverse proportion to the square root of the viscosity.
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