共 31 条
Production of light olefins by catalytic conversion of lignocellulosic biomass with HZSM-5 zeolite impregnated with 6 wt.% lanthanum
被引:109
作者:
Huang, Weiwei
[1
]
Gong, Feiyan
[1
]
Fan, Minghui
[1
]
Zhai, Qi
[1
]
Hong, Chenggui
[1
]
Li, Quanxin
[1
]
机构:
[1] Univ Sci & Technol China, Dept Chem Phys, Anhui Key Lab Biomass Clean Energy, Hefei 230026, Anhui, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Lignocellulosic biomass;
Light olefins;
Catalytic cracking;
6 wt.% La/HZSM-5 catalyst;
SPOUTED-BED REACTOR;
PYROLYSIS OIL;
OXYGENATE COMPONENTS;
BIO-OIL;
TRANSFORMATION;
CRACKING;
CHEMICALS;
FUELS;
HYDROCARBONS;
BIOETHANOL;
D O I:
10.1016/j.biortech.2012.05.141
中图分类号:
S2 [农业工程];
学科分类号:
0828 ;
摘要:
Catalytic conversion of rice husk, sawdust, sugarcane bagasse, cellulose, hemicellulose and lignin into olefins was performed with HZSM-5 containing 6 wt.% lanthanum. The olefins yields for different feed-stocks decreased in the order: cellulose > hemicellulose > sugarcane bagasse > rice husk > sawdust > lignin. Biomass containing higher content of cellulose or hemicellulose produced more olefins than feedstocks with higher content of lignin. Among the biomass types, sugarcane bagasse provided the highest olefin yield of 0.12 kg olefins/(kg dry biomass) and carbon yield of 21.2 C-mol%. Temperature, residence time and the catalyst/feed ratio influenced olefin yield and selectivity. While the HZSM-5 zeolite was catalytically active, the incorporation of lanthanum at 2.9, and 6.0 wt.% increased the production of olefins from rice husk by 15.6% and 26.5%, respectively. The conversion of biomass to light olefins potentially provides an alternative and sustainable route for production of the key petrochemicals. (C) 2012 Elsevier Ltd. All rights reserved.
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页码:248 / 255
页数:8
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