Fischer-Tropsch synthesis performance of cobalt-based catalysts supported on bimodal porous SiO<sub>2</sub> with high specific surface area

HU Xue-qi; LÜ Shuai; ZHAO Yan-xi; ZHANG Yu-hua; LIU Cheng-chao; LI Jin-lin

doi:10.19906/j.cnki.JFCT.2022077

Volume 51 Issue 6

Jun. 2023

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Article Navigation > Journal of Fuel Chemistry and Technology > 2023 > 51(6): 768-775

HU Xue-qi, LÜ Shuai, ZHAO Yan-xi, ZHANG Yu-hua, LIU Cheng-chao, LI Jin-lin. Fischer-Tropsch synthesis performance of cobalt-based catalysts supported on bimodal porous SiO2 with high specific surface area[J]. Journal of Fuel Chemistry and Technology, 2023, 51(6): 768-775. doi: 10.19906/j.cnki.JFCT.2022077

Citation:

HU Xue-qi, LÜ Shuai, ZHAO Yan-xi, ZHANG Yu-hua, LIU Cheng-chao, LI Jin-lin. Fischer-Tropsch synthesis performance of cobalt-based catalysts supported on bimodal porous SiO₂ with high specific surface area[J]. Journal of Fuel Chemistry and Technology, 2023, 51(6): 768-775. doi: 10.19906/j.cnki.JFCT.2022077

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Fischer-Tropsch synthesis performance of cobalt-based catalysts supported on bimodal porous SiO₂ with high specific surface area

doi: 10.19906/j.cnki.JFCT.2022077

Hubei Key Laboratory of Catalysis and Materials Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, South-Central Minzu University, Wuhan 430074, China

Funds: The project was supported by the National Science Foundation of China (21972170，21902187，22102220) and the Key Research and Development Program of Hubei Province (2022BCA084)

Received Date: 2022-07-16
Accepted Date: 2022-09-13
Rev Recd Date: 2022-09-10

Available Online: 2022-10-19

Publish Date: 2023-06-15

Abstract

Abstract

The structure of the supports can significantly affect the Fischer-Tropsch catalyst activity and selectivity. The porous structure can improve the mass transfer of reactants, enhance the CO conversion activity and C₅₊ product selectivity; the high specific surface area is beneficial to disperse the loaded metal, improve the catalyst metal utilization efficiency and catalyst stability. However, it is relatively difficult for supports to obtain high specific surface area and macropore structure characteristics simultaneously. A mesoporous (2.9 nm) -macroporous (63.8 nm) bi-porous silica (BP-SiO₂) support with a high specific surface area of 1103.2 m²/g was synthesized by the structure-directed hydrolysis method, and its catalytic performance for Fischer-Tropsch synthesis was investigated. The results showed that compared to the Co/SBA-15 catalyst with equivalent mesopore diameter, the catalyst Co/BP-SiO₂ showed CO conversion rate nearly increased by 33.3%, CH₄ selectivity reduced by 30.1%, improved C₅₊ selectivity and stability.
- Fischer-Tropsch synthesis,
- bimodal pore,
- cobalt based catalyst

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References(32)

References

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