Enhancement of the liquid - side mass transfer in a falling film catalytic microreactor by in - channel mixing structures / Evgeny V. Rebrov in Industrial & engineering chemistry research, Vol. 51 N° 26 (Juillet 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 8719–8725 Titre : Enhancement of the liquid - side mass transfer in a falling film catalytic microreactor by in - channel mixing structures Type de document : texte imprimé Auteurs : Evgeny V. Rebrov, Auteur ; Thijs Duisters, Auteur ; Patrick Lob, Auteur Année de publication : 2012 Article en page(s) : pp. 8719–8725 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Mass transfer Microreactor Résumé : 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. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301058h [article] Enhancement of the liquid - side mass transfer in a falling film catalytic microreactor by in - channel mixing structures [texte imprimé] / Evgeny V. Rebrov, Auteur ; Thijs Duisters, Auteur ; Patrick Lob, Auteur . - 2012 . - pp. 8719–8725. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 8719–8725 Mots-clés : Mass transfer Microreactor Résumé : 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. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301058h

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