Aqueous‐Phase Reforming in a Microreactor: The Role of Surface Bubbles |
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Authors: | Rene M Ripken Jeffery A Wood Johannes G E Gardeniers Sverine Le Gac |
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Affiliation: | Renée M. Ripken,Jeffery A. Wood,Johannes G. E. Gardeniers,Séverine Le Gac |
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Abstract: | In heterogeneous catalysis, the creation of gaseous products as bubbles in a liquid phase on the catalytic surface is associated with slip phenomena. In a microreactor, the slip length at the gas‐liquid interface is in the same order of magnitude as the reactor dimensions, which can affect fluid dynamics and transport phenomena. Here, the interplay of momentum, heat and mass transfer in a microreactor, when bubbles form on the catalytic surface, was investigated using two‐dimensional simulations. The effect of bubbles on the endothermic process of aqueous‐phase reforming of a glycerol solution was evaluated in terms of conversion and conversion and temperature in the reactor. Altogether, this study highlights the impact of bubbles, not only on the transport phenomena but also on the reactor performance. |
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Keywords: | Bubbles Heat and mass transport Heterogeneous catalysis Microfluidics Slip velocity |
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