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

页码：10661 / 10674

页数：14

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