Energetic efficiency of mass transfer accompanied by chemical reactions in liquid-liquid systems

• Autorzy: Jasińska M. , Bałdyga J.

Identyfikatory

DOI

10.1515/cpe-2017-0033

• Języki publikacji: EN

Abstrakty

EN

Energetic efficiency depicting the fraction of energy dissipation rate used to perform processes of drop breakup and mass transfer in two-phase, liquid-liquid systems is considered. Results of experiments carried out earlier in two types of high-shear mixers: an in-line rotor-stator mixer and a batch rotor-stator mixer, have been applied to identify and compare the efficiency of drop breakage and mass transfer in both types of mixers. The applied method is based on experimental determination of both: the product distribution of chemical test reactions and the drop size distributions. Experimental data are interpreted using a multifractal model of turbulence for drop breakage and the model by Favelukis and Lavrenteva for mass transfer. Results show that the energetic efficiency of the in-line mixer is higher than that of the batch mixer; two stator geometries were considered in the case of the batch mixer and the energetic efficiency of the device equipped with a standard emulsor screen (SES) was higher than the efficiency of the mixer equipped with a general purpose disintegrating head (GPDH) for drop breakup but smaller for mass transfer.

Słowa kluczowe

EN

chemical test reactions; energetic efficiency of mixing; mass transfer\liquid-liquid; system; rotor-stator mixer

PL

reakcje testowe chemiczne; efektywność energetyczna mieszania; przeniesienie masy; ciecz

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2017
• Tom: Vol. 38, nr 3
• Strony: 433--444
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Jasińska M.

• Warsaw University of Technology, Faculty of Chemical and Process Engineering, ul. Waryńskiego 1, Warsaw, Poland

autor

Bałdyga J.

• Warsaw University of Technology, Faculty of Chemical and Process Engineering, ul. Waryńskiego 1, Warsaw, Poland

Bibliografia

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• 2. Bałdyga J., Jasińska M., 2011. Effect of model structure on complex liquid-liquid heterogeneous reactions. Proceedings of the third European Process Intensification Conference, EPIC2011, 20-23 June 2011,Manchester, UK, 175-181.
• 3. Bałdyga J., Kowalski A., Cooke M., Jasińska M., 2007. Investigations of micromixing in a rotor-stator mixer. Chem. Process Eng., 28 (4), 867-877.
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• 8. Jasińska M., Bałdyga J., Cooke M., Kowalski A., 2016. Mass transfer and chemical test reactions in the continuous-flow rotor-stator mixer. Theor. Found. Chem. Eng., 50, 901-906. DOI: 10.1134/S0040579516060075.
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• 13. Malecha K., Golonka L.J., Bałdyga J., Jasińska M., Sobieszuk P., 2009. Serpentine microfluidic mixer made in LTCC. Sens. Actuators B: Chem., 143, 400-413. DOI: 10.1016/j.snb2009.08.010.
• 14. Padron G.A., 2001. Measurement and comparison of power draw in batch rotor-stator mixers. M.Sc. Thesis, University of Maryland, College Park, MD, USA.
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)