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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
Source PublicationENERGY & FUELS
Volume29Issue:12Pages:8027-8034
AbstractTo 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/acs.energyfuels.5b01765
WOS Subject ExtendedEnergy & Fuels ; Engineering
WOS KeywordBIOMASS ; WOOD ; PRETREATMENT ; TEMPERATURE ; FEEDSTOCKS ; REACTOR ; YIELD ; FUELS ; ZSM-5 ; OILS
Indexed BySCI
Language英语
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000366878000030
Citation statistics
Cited Times:41[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10936
Collection中国科学院广州能源研究所
AffiliationChinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
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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