Enhancement of the liquid-sided mass transfer in a falling film catalytic microreactor by in-channel mixing structures

E. Rebrov, M.J. Duisters, P. Löb, J. Meuldijk, V. Hessel

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22 Citaten (Scopus)
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Samenvatting

Catalytic octanal oxidation with oxygen was performed at 100 °C and the total pressure of 5 and 10 bar in a falling film microreactor with varying reaction plates bearing different in-channel mixing structures. The liquid flow rate was changed in the range of 3.3–17.5 mL/min. The liquid-sided mass transfer over grooved or finned structured plates was enhanced by factors of 1.12 and 1.20, respectively, compared to that on a standard plate with 16 microchannels with dimensions of 1200 µm × 400 µm. The liquid flow rate over the structured plates could be increased by 60%–80% without any loss of octanal conversion. A two-dimensional convection and diffusion model adopted from Al-Rawashdeh et al. [Chem. Eng. Sci. 2008, 63, 5149] was formulated to simulate the reactor behavior, and its predictions describe the experimental results in terms of octanal conversion with an accuracy of 4.3% when the actual temperature distribution in the reactor plate is taken into account
Originele taal-2Engels
Pagina's (van-tot)8719-8725
Aantal pagina's6
TijdschriftIndustrial and Engineering Chemistry Research
Volume51
Nummer van het tijdschrift26
DOI's
StatusGepubliceerd - 2012

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