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Impact of Torrefaction on the Chemical Structure and Catalytic Fast Pyrolysis Behavior of Hemicellulose, Lignin, and Cellulose
Zheng, Anqing; Jiang, Liqun; Zhao, Zengli; Huang, Zhen; Zhao, Kun; Wei, Guoqiang; Wang, Xiaobo; He, Fang; Li, Haibin
2015-12-01
发表期刊ENERGY & FUELS
卷号29期号:12页码:8027-8034
摘要To understand the effect of torrefaction severity on structure changes of hemicellulose, cellulose, lignin and their subsequent catalytic fast pyrolysis (CFP) behavior, torrefaction of lignin, hemicellulose, and cellulose was performed in a tubular reactor with different reaction temperatures (210-300 degrees C) and residence times (20-60 min). The experimental results show that the rank order of thermal stability during torrefaction was cellulose > lignin > hemicellulose. The torrefied hemicelulose, cellulose, and lignin were subsequently catalytic-fast-pyrolyzed over HZSM-5 in a semi-batch pyroprobe reactor. The effects of the torrefaction temperature and residence time on aromatic yields and selectivity from CFP of torrefied hemicellulose, cellulose, and lignin were investigated. The experimental results showed that torrefaction can cause the reduction in the aromatic yield and increase in benzene, toluene, and xylenes (BTX) selectivity from CFP of torrefied hemicellulose and lignin. It has little impact on CFP of torrefied cellulose. The results can be explained by Fourier transform infrared (FTIR) spectroscopy and C-13 cross-polarization magic angle spinning (CP/MAS) nuclear magnetic resonance (NMR) analysis of torrefied hemicellulose, cellulose, and lignin. The rank order of structure change during torrefaction was hemicellulose > lignin > cellulose. The devolatilization and polycondensation of hemicellulose and lignin during torrefaction could be mainly responsible for the yield penalties of aromatic production from CFP of torrefied hemicellulose and lignin.
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1021/acs.energyfuels.5b01765
研究领域[WOS]Energy & Fuels ; Engineering
关键词[WOS]BIOMASS ; WOOD ; PRETREATMENT ; TEMPERATURE ; FEEDSTOCKS ; REACTOR ; YIELD ; FUELS ; ZSM-5 ; OILS
收录类别SCI
语种英语
WOS类目Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000366878000030
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10936
专题中国科学院广州能源研究所
作者单位Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
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Zheng, Anqing,Jiang, Liqun,Zhao, Zengli,et al. Impact of Torrefaction on the Chemical Structure and Catalytic Fast Pyrolysis Behavior of Hemicellulose, Lignin, and Cellulose[J]. ENERGY & FUELS,2015,29(12):8027-8034.
APA Zheng, Anqing.,Jiang, Liqun.,Zhao, Zengli.,Huang, Zhen.,Zhao, Kun.,...&Li, Haibin.(2015).Impact of Torrefaction on the Chemical Structure and Catalytic Fast Pyrolysis Behavior of Hemicellulose, Lignin, and Cellulose.ENERGY & FUELS,29(12),8027-8034.
MLA Zheng, Anqing,et al."Impact of Torrefaction on the Chemical Structure and Catalytic Fast Pyrolysis Behavior of Hemicellulose, Lignin, and Cellulose".ENERGY & FUELS 29.12(2015):8027-8034.
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