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Issue
Korean Journal of Chemical Engineering,
Vol.32, No.10, 1993-1998, 2015
Fischer-Tropsch synthesis on Co-Al2O3-(promoter)/ZSM5 hybrid catalysts for the production of gasoline range hydrocarbons
Ryu JH, Kang SH, Kim JH, Lee YJ, Jun KW
The Fischer-Tropsch synthesis (FTS) reaction was investigated for the direct production of gasoline range hydrocarbons (C5-C9) from syngas on Ru-, Pt- and La-promoted Co-Al2O3/ZSM-5 (Si/Al=25) hybrid catalysts prepared by co-precipitation method in a slurry. The hybrid catalysts were characterized by BET surface area, XRD, H2-TPR and NH3-TPD analyses. Their physicochemical properties were correlated with the activity and selectivity of the catalysts. The promoted Co-Al2O3-(promoter)/ZSM-5 hybrid catalysts were superior to the unpromoted Co-Al2O3/ZSM-5 catalyst in terms of better C5-C9 yield. In particular, the Co-Al2O3-Pt/ ZSM-5 hybrid catalyst exhibited the highest catalytic activity with a low C1 and olefin selectivity and a high C5-C9 selectivity. It could be due to not only a higher value for the reduction degree by H2-TPR, but also assigned to weak acidic sites of a low temperature desorption peak by NH3-TPD.
Keywords: Fischer-Tropsch Synthesis; Cobalt Hybrid Catalyst; Promoter; Gasoline; ZSM-5; Syngas
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[Cited By]
  1. Eshraghi A, Mirzaei AA, Rahimi R, Atashi H, Korean Journal of Chemical Engineering, 37(10), 1699, 2020
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