Solid state mechanism leading to enhanced attrition resistance of alumina based catalyst supports for Fischer-Tropsch synthesis

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• 作者：Magnus Rotan ; Erling Rytter ; Mari-Ann Einarsrud ; Tor Gr ; e
• 关键词：Alumina ; Porous materials ; Catalyst support ; Microstructure engineering
• 刊名：Journal of the European Ceramic Society
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：33
• 期：1
• 页码：1-6
• 全文大小：921 K

文摘

A solid state mechanism for improving the attrition resistance of alumina based catalyst supports for Fischer-Tropsch synthesis is reported. The grain size, intergranular neck formation and phase composition of the support are modified by impregnating ¦Ã-alumina with metal oxide precursors, which enable to control the phase transformation and coarsening of the ¦Ã-alumina based supports during calcination. We show by high temperature X-ray diffraction that the formation of a metastable spinel solid solution is critical for the evolution of the microstructure.