Fischer–Tropsch synthesis using iron supported on potassic LTL zeolite and modified with Cs

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• 作者：Norma Graciela Gallegos ; Ana Marí ; a Alvarez ; Marí ; a Virginia Cagnoli ; José ; Fernando Bengoa ; Leonardo André ; s Cano ; Roberto Carlos Mercader and Sergio Gustavo Marchetti
• 刊名：Catalysis Today
• 出版年：2005
• 期刊代码：13_09205861
• 类别：ce
• 出版时间：2005
• 卷：107-108
• 期：Complete
• 页码：355-361
• 文件大小：406 K

摘要

Iron catalysts, to be used in the Fischer–Tropsch reaction were prepared using zeolite LTL and zeolite LTL modified with cesium, as supports. X-ray diffraction, specific surface area, atomic emission and absorption spectroscopies, Mössbauer spectroscopy in controlled atmosphere, between room temperature and 22 K, H₂ chemisorption and volumetric oxidation were used to characterize the solids.<p>Comparing both catalysts, the Cs presence generates a solid with a lower reducibility degree and a lower quantity of Fep>0p> microcrystals inside the pore structure, leading to a lower activity per gram and a higher olefins/paraffins ratio.