Gas permeation effect on the Two-Section Two-Zone Fluidized Bed Membrane Reactor (TS-TZFBMR) fluid dynamics: A CFD simulation study
作者： I. Julián , J. Herguido , M. Menéndez
DOI: 10.1016/J.CEJ.2015.08.127
关键词: Permeation 、 Fluidization 、 Mechanics 、 Chemistry 、 Bubble 、 Fluid dynamics 、 Membrane reactor 、 Mixing (process engineering) 、 Petroleum engineering 、 Steam reforming 、 Fluidized bed
摘要: Abstract Two-Fluid Model simulations were conducted using the commercial software Ansys CFX and Fluent to study effect of gas extraction on fluid dynamic behavior a membrane-assisted Two-Section Two-Zone Fluidized Bed Membrane Reactor (TS-TZFBMR). Simulated bubble properties bed dynamics analyzed compared among different membrane reactor configurations, including reactor-wall (RWM) immersed tubular (ITM) membranes, for their future use in catalytic reactions, e.g., alkane dehydrogenation or methane steam reforming. According solids hold-up distribution at fluidization regimes permeation fluxes, ITM configuration is most suitable enhance gas-particle contact favor axial mixing in-situ catalyst regeneration purposes. However, RWM provides greater area selective removal preferred purification. It was found that relative fluxes above 20% total feed have significant impact regime within TS-TZFBMR, concerning appearance local defluidized regions, channeling mixing.
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