Effect of calcium promoter on nano structure iron catalyst for Fischer–Tropsch synthesis
Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JPSTR-5-1_003
تاریخ نمایه سازی: 29 آذر 1402
Abstract:
The Fischer-Tropsch synthesis (FTS) has been recognized as a heterogeneous surface-catalyzed polymerization process. During this process, CHx monomers formed via the hydrogenation of adsorbed CO on transition metals produce hydrocarbons and oxygenates with a broad range of chain lengths and functional groups. A series of Fe/Cu Fischer-Tropsch synthesis catalysts incorporated with a calcium promoter were prepared by a microemulsion method. The composition of the final nanosized iron catalysts in terms of the atomic ratio is as follows: ۱۰۰Fe/۴Cu, ۱۰۰Fe/۴Cu/۲Ca, ۱۰۰Fe/۴Cu/۴Ca. XRD, BET, TEM, and TPR techniques were used to study the catalysts phase, structure, and morphology. Fischer-Tropsch synthesis (FTS) reaction test was performed in a fixed bed reactor. All the promoted catalysts, compared to the unpromoted catalysts, have higher rates of FT and the secondary reaction for CO۲ production. The formation of methane and light hydrocarbons is restrained with increasing the amount of calcium. The ۱۰۰Fe/۴Cu/۲Ca shows the best performance between the prepared catalysts.
Authors
yhaya zamani
Research Institute of Petroleum Industry (RIPI)
Akbar zamaniyan
Research Institute of Petroleum Industry(RIPI)
farzad bahadoran
Research Institute of Petroleum Industry(RIPI)
mehrdad shojaei
Research Institute of Petroleum Industry(RIPI)
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