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- W2154182600 abstract "In this study the performance of a membrane reactor was compared to that of a plug-flow reactor for the dehydrogenation of ethanol. The membrane consisted of a 2.2 μm Pd−Ag film (23 wt % Ag) deposited on the inside of an asymmetric α-alumina membrane tube (SCT). The membrane tube was packed with a 14.5 wt % Cu on SiO2 catalyst. The effects of the sweep gas flow rate, the ethanol feed flow rate, and the temperature on acetaldehyde yield and selectivity were investigated. A model was developed using measured kinetic data and membrane permeance data to predict the performance of the membrane reactor. The membrane reactor performed significantly better than the plug-flow reactor at all temperatures tested. The best results were obtained at 275 °C, where the total ethanol exit conversion increased from 45% (plug-flow reactor) to 60% at low feed flow rates and from 36% to 46% at high feed flow rates. The acetaldehyde selectivity for the membrane reactor increased from the lower 80% range to above 90% at 275 °C. The model underpredicted the total ethanol conversion, indicating that the measured reaction rate parameters for a differential reactor were lower than those for the membrane reactor." @default.
- W2154182600 created "2016-06-24" @default.
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- W2154182600 date "2002-03-23" @default.
- W2154182600 modified "2023-10-12" @default.
- W2154182600 title "Comparing and Modeling the Dehydrogenation of Ethanol in a Plug-Flow Reactor and a Pd−Ag Membrane Reactor" @default.
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- W2154182600 doi "https://doi.org/10.1021/ie010127c" @default.
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