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Fischer–Tropsch synthesis: effect of silica on hydrocarbon production over cobalt-based catalysts

Elham Yaghoobpour, Yahya Zamani, Saeed Zarrinpashne, and Akbar Zamaniyan

Research Institute of Petroleum Industry (RIPI), Tehran, Iran

 

E-mail: yahyazamani@yahoo.com

Abstract: Support materials have an important role in Fischer–Tropsch synthesis (FTS) catalyst and are influenced by various factors. In this paper, the effects of silica augmentation to γ-Al2O3 supported cobalt material on morphology and performance of catalyst have been studied. A series of catalysts, contain 0, 5, 10, and 15 wt % SiO2, were prepared using the incipient wetness impregnation method. The prepared catalysts were characterized by various techniques such as BET, H2-TPR, XRD, and HRTEM. Then, the catalysts were tested in a fixed-bed reactor. The results showed that the addition of SiO2 material remarkably promoted the catalyst performance in terms of CO conversion, catalyst activity, and consequently catalytic yield. Among the synthesized catalysts, the catalyst with 10 wt% silica demonstrated an optimum silica addition to achieve the highest catalyst performance.

Keywords: Fischer–Tropsch synthesis ; Cobalt catalyst ; γ-Alumina support ; Silica effect 

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-018-0565-9

 

Chemical Papers 73 (1) 205–214 (2019)

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