Ru modified Co/SiO<sub>2</sub>/HZSM-5 catalysts for jet fuel-range hydrocarbons synthesis

LI Yu-ping; CHEN Lun-gang; WANG Tie-jun; MA Long-long; WU Chuang-zhi; QIU Song-bai

Volume 42 Issue 06

Jun. 2014

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Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(06): 727-732

LI Yu-ping, CHEN Lun-gang, WANG Tie-jun, MA Long-long, WU Chuang-zhi, QIU Song-bai. Ru modified Co/SiO2/HZSM-5 catalysts for jet fuel-range hydrocarbons synthesis[J]. Journal of Fuel Chemistry and Technology, 2014, 42(06): 727-732.

Citation:

LI Yu-ping, CHEN Lun-gang, WANG Tie-jun, MA Long-long, WU Chuang-zhi, QIU Song-bai. Ru modified Co/SiO₂/HZSM-5 catalysts for jet fuel-range hydrocarbons synthesis[J]. Journal of Fuel Chemistry and Technology, 2014, 42(06): 727-732.

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Ru modified Co/SiO₂/HZSM-5 catalysts for jet fuel-range hydrocarbons synthesis

CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Guangzhou 510640, China

Received Date: 2013-10-10
Rev Recd Date: 2014-02-13
Publish Date: 2014-06-30

Abstract

Abstract

Selective synthesis of jet fuel-range hydrocarbons (C_8~18) was investigated in a fixed-bed reactor over Ru modified cobalt-based catalysts, supported on mesoporous SiO₂ and microporous HZSM-5. The effect of Ru adding amount (1%~4%) and the textual and structural properties of the catalysts on Fischer-Tropsch synthesis(FTS) performance were studied. The results showed that the tailor-made Ru-Co/SiO₂/HZSM-5 catalysts maintained both meso-and micro-pores. Co dispersion and reducibility at 150~750 ℃ were enhanced with the increase of Ru amount, which resulted in the increase of CO conversion. In the same time, the yield of iso-paraffins was enhanced due to the existence of microporous structure of HZSM-5. Thus CO conversion of 62.8% and yield of jet fuel-range hydrocarbons (C_8~18) of 37.7%, including 10.9% of iso-paraffins, were achieved over 1% Ru modified Co/SiO₂/HZSM-5. The FTS product distribution shifted to low-carbon hydrocarbons when Ru amount was higher than 2% due to the increased CO hydrogenation rate and CH₄ selectivity.
- Co/SiO₂,
- HZSM-5,
- Ru,
- Fischer-Tropsch synthesis,
- jet fuel-range hydrocarbons

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References

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