Sorption characteristics in rheological material systems

With the advance of fermentation technology (antibiotics, citric add, essential amino acids, etc.) interest has increased in the supply of aerial oxygen to more viscous and non-Newtonian liquids. It is thus not surprising that the first important study of mass transfer in C/L systems [64, 65] was linked in its title to industrial fermentation and that the bubble column has been adopted as a classical apparatus for this basic operation in chemical technology having first been used in fermentation technology. 

In their ki a measurements Yagi and Yoshida [596] also tested two non-Newtonian fluids CMC and PANa = sodium salt of polyacrylic acid. They found that equation (4,31) had to be expanded by an extra term, which contains the Weiflenberg (or Deborah) number Wi = De = An, to correlate kiu values for viscoelastic fluids see equations (1.53) and (1.45)  

Hocker [216, 217] could reproduce equation (4.32), which is not viable in respect of scale-up, with his experiments with water, CMC and glucose in the framework, Henzler [192] has compared and evaluated a number of studies, in which high viscosity and non-Newtonian fluids were gassed, also in the same framework. 

It is important with regard to the measurements represented according to evaluation framework 2, such as referred to here and also later, that they can easily be converted into the correct evaluation framework 1. In this way valuable test data can be rescued. 

The sorption characteristic for aqueous CMC solutions proposed in the evaluation framework (k aV/q)Sc°- — f P/q) in Fig. 4.8 showed a good correlation of the data. The process characteristic was as follows  

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