Journal
REACTION KINETICS MECHANISMS AND CATALYSIS
Volume 119, Issue 2, Pages 457-468Publisher
SPRINGER
DOI: 10.1007/s11144-016-1064-z
Keywords
Fischer-Tropsch synthesis; Light olefins; Iron-based catalyst; Macropore support; Dispersion
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Funding
- National Natural Science Foundation of P. R. China [91334206]
- Ministry of Education of P. R. China [NCET-13-0653]
- National 863 program of P. R. China [2013AA031702]
- Innovation and Promotion Project of Beijing University of Chemical Technology [JC1505]
- BUCT Fund for Disciplines Construction and Development [XK1505]
- China Postdoctoral Science Foundation [2016M591051]
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A highly dispersed macroporous iron-based catalyst (Fe/S80-E) was developed by the modification of a macroporous silica (80 nm) surface with ethylene glycol before the impregnation of iron precursors. Due to higher diffusion efficiency and highly dispersed iron particles, this kind of catalyst presents superb catalytic performance in Fischer-Tropsch synthesis with high selectivity of light olefins (46.2 c-mol%) as well as high activity (CO conv. 63.4 %) without any promoters. The obtained catalysts were characterized by N-2 physisorption, mercury intrusion porosimetry, XRD, TEM, XPS, TPR and in situ DRIFT.
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