共 10 条
Selective production of high-value fuel via catalytic upgrading of bio-oil over nitrogen-doped carbon-alumina hybrid supported cobalt catalysts
被引:4
|作者:
Peng, Qin
[1
,2
,3
]
Jiang, Xia
[1
]
Cao, Guangmei
[1
]
Xie, Tianqiao
[1
,2
]
Jin, Ziheng
[1
]
Xie, Lingling
[2
]
Gan, Fengli
[2
]
Ma, Shenggui
[1
]
Peng, Mingming
[4
]
机构:
[1] Sichuan Univ, Coll Carbon Neutral Future Technol, Chengdu 610065, Peoples R China
[2] Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Peoples R China
[3] Chongqing Univ Arts & Sci, Chongqing Key Lab Environm Mat & Remediat Technol, Chongqing 402160, Peoples R China
[4] Tokyo Univ Agr & Technol, Grad Sch Bioapplicat & Syst Engn, 2-24-16 Nakacho, Koganei, Tokyo 1848588, Japan
关键词:
Biochar;
N doping;
Hydrodeoxygenation;
Hydrocarbon fuel;
DFT calculations;
LIGNIN-DERIVED PHENOLS;
TEMPERATURE HYDRODEOXYGENATION;
RU NANOPARTICLES;
BIOMASS;
EFFICIENT;
HYDROGENATION;
PYROLYSIS;
POWDER;
WASTE;
METAL;
D O I:
10.1016/j.biortech.2024.131059
中图分类号:
S2 [农业工程];
学科分类号:
0828 ;
摘要:
Bio-oil derived from biomass fast pyrolysis can be upgraded to gasoline and diesel alternatives by catalytic hydrodeoxygenation (HDO). Here, the novel nitrogen-doped carbon-alumina hybrid supported cobalt (Co/NCAn, n , n = 1, 2.5, 5) catalyst is established by a coagulation bath technique. The optimized Co/NCA2.5 2.5 catalyst presented 100 % conversion of guaiacol, high selectivity to cyclohexane (93.6 %), and extremely high deoxygenation degree (97.3 %), respectively. Therein, the formation of cyclohexanol was facilitated by stronger binding energy and greater charge transfer between Co and NC which was unraveled by density functional theory calculations. In addition, the appropriate amount of Lewis acid sites enhanced the cleavage of the C-O bond in cyclohexanol, finally resulting in a remarkable selectivity for cyclohexane. Finally, the Co/NCA2.5 2.5 catalyst also exhibited excellent selectivity (93.1 %) for high heating value hydrocarbon fuel in crude bio-oil HDO. This work provides a theoretical basis on N dopants collaborating alumina hybrid catalysts for efficient HDO reaction.
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页数:10
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