TY - JOUR ID - 61311 TI - KCl Promoted Cobalt-iron Nanocatalysts Supported on Silica: Catalytic Performance and Characterization in Fischer-Tropsch Synthesis JO - Physical Chemistry Research JA - PCR LA - en SN - 2322-5521 AU - Feyzi, Mostafa AU - Joshaghani, Mohammad AU - Nadri, Shirin AD - Faculty of Chemistry, Razi University, P. O. Box: +98-67149, Kermanshah, Iran AD - Faculty of Chemistry, Razi University Y1 - 2018 PY - 2018 VL - 6 IS - 2 SP - 399 EP - 414 KW - Fischer-Tropsch synthesis KW - Syngas KW - Co/Fe nano catalyst KW - Sol-gel method DO - 10.22036/pcr.2018.105287.1432 N2 - The SiO2 supported cobalt-iron nano catalysts were prepared by the sol-gel method. This research investigated the effects of (Co/Fe) wt.%, different Co/Fe ratio at different temperature and loading of KCl wt.% for Fisher-Tropsch synthesis (FTS). The results were showed that the catalyst containing 50 wt.% (Co/Fe)/SiO2 (Co/Fe ratio is 70/30) which promoted with 0.6 wt.% KCl is an optimal nano catalyst for conversion CO+H2 to a range of hydrocarbons especially light olefins. Also the results showed that optimal operating conditions for optimal nano catalyst are 250 °C, H2/CO molar ratio 2/1 under 1 bar of pressure. Characterization of catalyst precursors and calcined catalysts were done by different methods such as: powder X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 physisorption and thermal analysis methods such as thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). UR - https://www.physchemres.org/article_61311.html L1 - https://www.physchemres.org/article_61311_e63d50a00f4c14e6da341e6b298893fd.pdf ER -