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- W2765308141 abstract "This manuscript analyzes the steam reforming of ethanol (SRE) over a Ni/La2O3-αAl2O3 catalyst in a fluidized bed reactor under a wide range of operating conditions (500–650 °C, space time up to 0.35 gcatalysth/gEtOH, and steam/ethanol (S/E) molar ratio in the feed between 3 and 9) in order to select optimum conditions for maximizing H2 production. The significance the individual reactions in the reaction mechanism have on products distribution and the role of the catalyst in the extent of these reactions has also been analyzed. Blank runs (without catalyst) have been performed to test the contribution of thermal routes to this mechanism. Ethylene and acetaldehyde are intermediate products in the kinetic scheme, whose presence is only observed when ethanol conversion is not full. The increase in temperature enhances the reforming and decomposition of ethanol and acetaldehyde and, when the catalyst is used, CH4 reforming and reverse WGS reactions are also promoted, so that the yield of H2 and CO increases, that of CH4 decreases and the one of CO2 remains almost constant with temperature. The increase in S/E molar ratio increases H2 yield, but attenuates the rate of some reactions involved in the process. 600 °C, a space time of 0.35 gcatalysth/gEtOH and S/E = 6 are suitable conditions for maximizing ethanol conversion (100%) and H2 yield (82%) with high catalyst stability." @default.
- W2765308141 created "2017-11-10" @default.
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- W2765308141 date "2018-01-01" @default.
- W2765308141 modified "2023-09-26" @default.
- W2765308141 title "Optimum operating conditions in ethanol steam reforming over a Ni/La2O3-αAl2O3 catalyst in a fluidized bed reactor" @default.
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- W2765308141 doi "https://doi.org/10.1016/j.fuproc.2017.10.003" @default.
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