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日本エネルギー学会誌 Vol. 103 (2024), No. 7

ISIJ International
belloff
オンライン版ISSN: 1882-6121
冊子版ISSN: 0916-8753
発行機関: The Japan Institute of Energy

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日本エネルギー学会誌 Vol. 103 (2024), No. 7

コバルト系触媒を用いたFischer-Tropsch(FT)合成における炭化水素製造(Ⅱ)―助触媒,異なる触媒調製法,FT合成温度のケロシン収率および炭素物質収支への影響―

隈部 和弘, 飯尾 俊樹, 守富 寛

pp. 54-62

抄録

The Fischer-Tropsch synthesis (FTS) of syngas (34 vol% H2, 16 vol% CO, and 50 vol% N2) was carried out using cobalt-based catalysts in order to produce hydrocarbons (HCs) equivalent to kerosene, which is used as an alternative aviation fuel. The FTS had been conducted for a duration of 4.5 h in a downdraft continuous-flowtype fixed-bed reactor under temperatures of 225 and 230 °C, a pressure of 3.0 MPa, and W/F of 3.7 g h mol-1. The effects of the promotor included in the catalysts, their different preparation method, and the reaction temperature on the FTS were studied by focusing on primary kerosene yield and the carbon mass balance. Chromium and nickel included in the catalysts increased the overall CO conversion and selectivity of CO to the C11-C14 HCs equivalent to kerosene. The overall CO conversions and selectivities to kerosene for the FTS using the catalysts impregnated sequentially with cobalt and chromium were higher and lower, respectively, than those impregnated simultaneously. The higher reaction temperature increased the overall CO conversion and selectivity to kerosene.

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コバルト系触媒を用いたFischer-Tropsch(FT)合成における炭化水素製造(Ⅱ)―助触媒,異なる触媒調製法,FT合成温度のケロシン収率および炭素物質収支への影響―

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