Synthesis and Characterization of Co/C and Fe/C Nanocatalysts for Fischer-Tropsch Synthesis: A Comparative Study Using a Fixed-Bed Reactor

被引：22
作者：
Aluha, James [1 ]
Boahene, Philip [2 ]
Dalai, Ajay [2 ]
Hu, Yongfeng [3 ]
Bere, Kossi [1 ]
Braidy, Nadi [1 ]
Abatzoglou, Nicolas [1 ]
机构：
[1] Univ Sherbrooke, Dept Chem & Biotechnol Engn, Sherbrooke, PQ J1K 2R1, Canada
[2] Univ Saskatchewan, Dept Chem & Biotechnol Engn, Saskatoon, SK S7N 5A9, Canada
[3] Canadian Light Source Inc, Saskatoon, SK S7N 2V3, Canada
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2015年 / 54卷 / 43期
关键词：
TITANIA-SUPPORTED COBALT; IRON CATALYSTS; CARBON; PROMOTER; CARBIDE; ETHANOL; SIZE; CO2;
D O I：
10.1021/acs.iecr.5b03003
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Production of Fischer-Tropsch catalysts is challenging because it involves controlling and optimizing multiple parameters in numerous technical steps. Here, we present C-supported nanometric Fe and Co catalysts synthesized by plasma spraying, a method that contracts catalyst production into a single step, in contrast to traditional multistep catalyst production by precipitation or impregnation. The catalysts were reduced in situ and then tested for Fischer-Tropsch synthesis in a gas-solid fixed-bed reactor at 230 degrees C and 30-bar pressure for 24 h. The performance of plasma-synthesized catalysts was superior at a gas hourly space velocity of 6,000 mL.g(cat)(-1).h(-1), with Fe/C catalysts showing about 30% CO conversion per pass while Co/C catalysts yielded about 20% CO conversion. Identical C-supported Co and Fe catalysts prepared by impregnation or precipitation gave CO conversions of about 7% under similar reaction conditions.
引用
收藏
页码：10661 / 10674
页数：14
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