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

被引：0
|
作者：
Li, Yu-Ping [1 ]
Chen, Lun-Gang [1 ]
Wang, Tie-Jun [1 ]
Ma, Long-Long [1 ]
Wu, Chuang-Zhi [1 ]
Qiu, Song-Bai [1 ]
机构：
[1] CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Guangzhou 510640, China
来源：
Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology | 2014年 / 42卷 / 06期
关键词：
Selective synthesis of jet fuel-range hydrocarbons (C8~18) 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 °C 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 (C8~18) 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;
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页码：727 / 732
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