Performance of silica nanotube supported ruthenium catalysts for Fischer-Tropsch synthesis

被引：0
|
作者：
Tang H.-Q. [1 ]
Li J.-L. [1 ]
机构：
[1] Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission, South-Central University for Nationalities
来源：
Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology | 2011年 / 39卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Catalytic activity; Fischer-Tropsch synthesis; Ruthenium; Selectivity; Silica nanotube;
D O I：
10.1016/s1872-5813(11)60038-8
中图分类号：
学科分类号：
摘要：
Silica nanotubes (SNT) were synthesized with carbon nanotube (CNT) as a template and used as the support to prepare ruthenium-based catalyst by slurry impregnation method. The catalyst was characterized by N2 physisorption, XRD, H2-TPR and TEM; its performance in Fischer-Tropsch synthesis (FTS) was evaluated in a fixed-bed reactor at 503 K and 1.0 MPa and compared with that of SiO2 supported ruthenium catalyst (Ru/SiO2). The results indicated that ruthenium oxides can be completely reduced at 623 K by H2. For the SNT supported ruthenium catalyst (Ru/SNT), the ruthenium particles are mainly located inside the nanotubes and are still well dispersed on SNT after H2 reduction. Compared with Ru/SiO2, the Ru/SNT catalyst exhibits higher activity in FTS because of the higher dispersion of ruthenium particles in SNT.
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页码：615 / 620
页数：5
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