Diffusion Characteristics in Ethyl Alcohol and Glucose Solutions Using Kedem‐Katchalsky Equations

Formulas for calculating the viscosity and diffusion coefficients for two‐component aqueous non‐electrolyte solutions as a function of the solution concentration under isothermal conditions were derived. The dependence of diffusion coefficient, filtration coefficient, and dynamic viscosity coefficie...

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Veröffentlicht in:Chemical engineering & technology 2020-02, Vol.43 (2), p.248-252
Hauptverfasser: Jarzyńska, Maria, Staryga, Elżbieta, Kluza, Franciszek, Spiess, Walter E. L., Góral, Dariusz
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Sprache:eng
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Zusammenfassung:Formulas for calculating the viscosity and diffusion coefficients for two‐component aqueous non‐electrolyte solutions as a function of the solution concentration under isothermal conditions were derived. The dependence of diffusion coefficient, filtration coefficient, and dynamic viscosity coefficient for these solutions on the solution concentration was estimated and evaluated. Based on the obtained formulas, the results of diffusion coefficient, membrane filtration coefficient, and dynamic viscosity calculations for aqueous solutions of ethanol and glucose are presented and compared with literature data. Diffusion and filtration coefficients vs solution concentration, as important in mass transport phenomena, through biological and artificial membranes are presented. The calculation results for aqueous solutions of ethanol and glucose under isothermal conditions are compared with literature data. The developed dependence allows investigating the diffusion in binary non‐electrolyte aqueous solutions.
ISSN:0930-7516
1521-4125
DOI:10.1002/ceat.201900416