| Currently, Fuel Cells are receiving increasing attention as the most promising new power generation technologies, and the fuel processing by the mixed reforming of liquid hydrocarbons for on-site or on-board syngas/hydrogen production is regarded as the desired way for fuel cells. In this paper, we developed a new mixed-reforming technology for hydrogen/syngas production in a membrane reactor by combining the oxygen permeable membrane Ba0.5Sr0.5Co0.8Fe0.2O3 with the catalyst LiLaNiO/γ-Al2O3, this provide a new optional way of hydrogen production for both stationary and portable power generation.First, studies about the coke formation on the catalyst in the various reformations of heptane with O2, H2O, CO2, O2+H2O, O2+CO2, H2O+CO2 were carried out respectively. The results indicate that the catalyst after the mixed reforming reaction of heptane with steam and oxygen has least coke. Next, heptane was used as the surrogate of gasoline and naphtha to study its O2+H2O mixed reformation performances in the membrane reactor. At the optimized membrane reaction conditions, liquid hydrocarbons, including hexane, heptane, octane, toluene, simulated gasoline and simulated naphtha, can reacted with oxygen and water completely. During 500h long run, good results of the membrane reaction have been obtained with 100% simulated gasoline conversion , >94% hydrogen selectivity and 10ml/min.cm2 oxygen permeation flux. After that, we investigated the reaction mechanism of the mixed reformation of hydrocarbons with steam in oxygen permeable membrane reactor and found that only part of oxygen react directly with hydrocarbon by oxygen ion on the membrane, most of oxygen ions translate into gasiform oxygen and reform with hydrocarbons subsequently by catalyst. Finally, we found that LiLaNiO/γ-Al2O3 catalyst showed good sulfur resistance during the catalytic conversion of sulfur containing feed in the oxygen membrane reactor.
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