Flame-made Cu/ZnO/Al₂O₃ catalyst for dimethyl ether production

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• 作者：Ruaa Ahmad ; Melanie Hellinger ; Maria Buchholz ; Hikmet Sezen ; Loubna Gharnati ; Christof W枚ll ; J枚rg Sauer ; Manfred D枚ring ; Jan-Dierk Grunwaldt ; Ulrich Arnold
• 关键词：Dimethyl ether ; Flame-spray pyrolysis ; Methanol ; Synthesis gas
• 刊名：Catalysis Communications
• 出版年：5 January, 2014
• 年：2014
• 卷：43
• 期：Complete
• 页码：52-56
• 全文大小：857 K

文摘

For the single step synthesis of dimethyl ether (DME) from synthesis gas a Cu/ZnO/Al₂O₃-catalyst has been prepared using flame-spray pyrolysis. The resulting powder was co-mixed with 纬-alumina to give an admixed system for DME production. The flame-made catalyst was analyzed using the BET method, in situ XRD, N₂O decomposition, TPR and XPS. These studies unraveled that the catalyst exhibited a high Cu surface area including good contact with zinc oxide and alumina as well as small Cu particles resulting in high catalytic activity and product selectivity, also in comparison to a commercially available catalyst.