Investigations of mass transfer in annular gas-liquid flow in a microreactor

• Autorzy: Sobieszuk P. , Napieralska K.

Identyfikatory

DOI

10.1515/cpe-2016-0006

• Języki publikacji: EN

Abstrakty

EN

The paper presents an investigation of mass transfer in gas-liquid annular flow in a microreactor. The microreactor had a meandered shape with a square cross-section of the channel (292×292 μm, hydraulic diameter 292 μm) and 250 mm in length. The rate of CO2 absorption from the CO2/N2 mixture in NaOH (0.1 M, 0.2 M, 0.7 M, 1.0 M and 1.5 M) water solutions was measured. Two velocities of gas flow and two velocities of liquid flow were used. In two cases a fully developed annular flow at the beginning of the channel was observed, whilst in two cases annular flow was formed only in about 2/3 of the microchannel length. Based on the measurements of CO2 absorption rate, the values of volumetric liquid – side mass transfer coefficients with the chemical reaction were determined. Then physical values of coefficients were found. Obtained results were discussed and their values were compared with the values predicted by literature correlations.

Słowa kluczowe

EN

mass transfer; annular flow; microreactor

PL

masa transferu; przepływ pierścieniowy; mikroreaktor

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2016
• Tom: Vol. 37, nr 1
• Strony: 55--64
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Sobieszuk P.

• Warsaw University of Technology, Faculty of Chemical and Process Engineering, Warynskiego1, 00-645 Warsaw, Poland

autor

Napieralska K.

• Warsaw University of Technology, Faculty of Chemical and Process Engineering, Warynskiego 1, 00-645 Warsaw, Poland

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