Application of new chemical test reactions to study mass transfer from shrinking droplets and micromixing in the rotor-stator mixer

• Autorzy: Bałdyga J. , Kotowicz M.

Identyfikatory

DOI

10.1515/cpe-2017-0037

• Języki publikacji: EN

Abstrakty

EN

A pair of fast competitive reactions, neutralization and 2,2-dimetoxypropane (DMP) hydrolysis, has been applied do study mass transfer and micromixing in a T 50 Ultra-Turrax® - IKA rotor-stator device. In experiments the dispersed organic phase containing p-Toluenesulfonic acid (pTsOH) dissolved in diisopropyl ether, whereas the continuous phase was represented by the aqueous solution of sodium hydroxide, 2,2-dimetoxypropane (DMP) and ethanol. During mixing a fast mass transfer of a solute (pTsOH) from organic phase droplets, which were shrinking due to fast dissolution of the organic solvent, was followed by micromixing and chemical reactions in the continuous phase. Measured hydrolysis yields were applied to express effects of mixing on the course of chemical reactions. Modeling was based on application of models describing drop breakup, mass transfer in the liquid-liquid system and micromixing. Combined effects of mass transfer and drop breakage on drop population were expressed using the population balance equations. The model has been used to interpret experimental results, in particular to identify the efficiency of mixing.

Słowa kluczowe

EN

efficiency of mixing; mass transfer; micromixing; rotor-stator mixer; test reaction

PL

wydajność mieszania; transfer masy; mikromieszanie; reakcja testowa

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2017
• Tom: Vol. 38, nr 3
• Strony: 477--489
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Bałdyga J.

• Warsaw University of Technology, Faculty of Chemical and Process Engineering, ul. Wary ń skiego 1, Warsaw, Poland

autor

Kotowicz M.

• Warsaw University of Technology, Faculty of Chemical and Process Engineering, ul. Wary ń skiego 1, Warsaw, Poland

Bibliografia

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Uwagi

PL

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