title: Fischer-Tropsch synthesis with Fe/Cu/La/SiO2 nano-structured catalyst.
abstract: Nano-structure Fe2O3, CuO and La2O3 components were prepared by micro-emulsion method and then Fe/Cu/La/SiO2 nano-structure catalyst was prepared by mixing and re-slurring the mixture by tetraethylorthosilicate (TEOS). The catalyst composition was designated in term of the atomic ration as: 100Fe/5.64Cu/0.1La/19Si. Structural characterization of nano-structured Fe2O3, CuO and La2O3 components was performed by Transmission Electron Microscopy (TEM), powder X-ray diffraction, Temperature Programmed Reduction (TPR) techniques. Particle size for obtained components was about 20, 21.6 and 12.6 nm for Fe2O3, CuO and La2O3 respectively determined by using XRD pattern (Scherrer equation) and TEM images. Catalytic activity and product selectivity were conducted in a fixed-bed stainless steel reactor and compared with conventional iron catalyst. The results reveal that reducing particle size of catalyst increased the catalyst performance. Also, olefin/paraffin ratios decreased in comparison with conventional catalyst.
authors.affiliation: Research Institute of Petroleum Industry (RIPI), National Iranian Oil Company, PO Box, 18745-4163 Tehran, Iran.
authors.forename: Ali Nakhaei
authors.initials: AN
authors.lastname: Pour
authors.forename: Sohrab
authors.initials: S
authors.lastname: Taghipoor
authors.forename: Marzieh
authors.initials: M
authors.lastname: Shekarriz
authors.forename: Seyed Mehdi Kamali
authors.initials: SM
authors.lastname: Shahri
authors.forename: Yahya
authors.initials: Y
authors.lastname: Zamani