Deactivation by Sintering of Ni/TiO_2 and Ni/TiO_2-Al_2oO_3 sol-gel Hydrogenation Catalysts

机译：Ni / TiO_2和Ni / TiO_2-Al_2oO_3溶胶-凝胶加氢催化剂的烧结失活

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The influence of the reduction temperature over deactivation behaviour on nickel-titania sol-gel catalysts is studied in this work, Reduction treatment has been carried out at low (623, K) and high (773 K) temperatures. The following phenomena were simultaneously observed after high temperature reduction (SMST condition): BET surface area loss, sintering of both Ni particles and support (increase of aatase crsytal size), and deactivation by coking under acetylene hydrogenation. When 3

机译：在这项工作中，研究了还原温度对失活行为对镍-二氧化钛溶胶-凝胶催化剂的影响。在低温（623 K）和高温（773 K）下均进行了还原处理。高温还原（SMST条件）后，同时观察到以下现象：BET表面积损失，Ni颗粒和载体的烧结（锐钛矿晶型尺寸的增加）以及乙炔加氢焦化导致的失活。当3

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来源
《8th International Symposium on Catalyst Deactivation 1999 Brugge, Belgium, October 10-13, 1999》|1999年|p.477-580|共104页
会议地点 Brugge(BE)
作者
E. Romero-lPascual; G. Perez; A. Montoya; C. Guimon; T. Viveros; A. Monzon;
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Deactivation by Sintering of Ni/TiO_2 and Ni/TiO_2-Al_2oO_3 sol-gel Hydrogenation Catalysts

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