Park, MoonJu Kang, Jung Shik Na, Ki Poong Lee, Sang Deuk Awate, S. V. Moon, Dong Ju 2024-01-20T17:34:15Z 2024-01-20T17:34:15Z 2021-09-02 2011-02 1533-4880 https://pubs.kist.re.kr/handle/201004/130682 To improve catalytic performance iron based catalyst, the effects of some metal promoters, especially potassium, copper and other transition metal oxides as well as different supports have been reported. A series of Fe/K/Cu catalysts promoted with magnesium and ceria by precipitation method, followed by impregnation method; keeping Cu and K content same. The catalysts were characterized by XRD, N-2 physisorption, TPR and TEM techniques. From XRD, the presence of hematite (Fe2O3) phase was detected in all precipitated iron catalysts and CFe2.5 phase in all used catalysts. TPR results showed that addition of Mg facilitated the reduction of Fe2O3 and decrease in reduction temperature. The catalytic performance was investigated in a fixed-bed reactor at 250 degrees C, 2 MPa pressure and H-2/CO molar ratio of 2. Concentration of Mg was found to affect the CO conversion and product distribution. It was found that precipitated iron catalyst Fe/Mg/Cu/K with Mg/Fe ratio of 0.1 showed highest conversion (60.6%) and C-5(+) selectivity (92.4%) among all catalysts tested. English AMER SCIENTIFIC PUBLISHERS REDUCTION Studies on Nanosized Iron Based Modified Catalyst for Fischer-Tropsch Synthesis Application Article 10.1166/jnn.2011.3334 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.11, no.2, pp.1447 - 1450 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 11 2 1447 1450 scie scopus 000287167900092 2-s2.0-84863012420 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article; Proceedings Paper REDUCTION Fischer-Tropsch Precipitated Iron Catalyst Cu Ceria Magnesium Promoter