Syngas production from butane using a flame-made Rh/Ce_0.5Zr_0.5O₂ catalyst

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• 作者：Nico Hotz ; Michael J. Stutz ; Stefan Loher ; Wendelin J. Stark ; Dimos Poulikakos
• 关键词：Butane processing ; Syngas ; Catalytic nanoparticles ; Rhodium catalyst ; Micro-reactor ; Fuel cell ; Intermediate-temperature SOFC
• 刊名：Applied Catalysis B ; Environmental
• 出版年：2007
• 期刊代码：4_09263373
• 类别：ce
• 出版时间：11 May 2007
• 卷：73
• 期：3-4
• 页码：336-344
• 文件大小：916 K

摘要

The capability of flame-made Rh/Ce_0.5Zr_0.5O₂ nanoparticles catalyzing the production of H₂- and CO-rich syngas from butane was investigated for different Rh loadings (0–2.0 wt%Rh) and two different ceramic fibers (Al₂O₃/SiO₂ and SiO₂) as plugging material in a packed bed reactor for a temperature range from 225 to 750 °C. The main goal of this study was the efficient processing of butane at temperatures between 500 and 600 °C for a micro-intermediate-temperature SOFC system. Our results showed that Rh/Ce_0.5Zr_0.5O₂ nanoparticles offer a very promising material for butane-to-syngas conversion with complete butane conversion and a hydrogen yield of 77%at 600 °C. The catalytic performance of packed beds strongly depended on the use of either Al₂O₃/SiO₂ or SiO₂ fiber plugs. This astonishing effect could be attributed to the interplay of homogeneous and heterogeneous chemical reactions during the high-temperatures within the reactor.