Role of different chain end types in pyrolysis of glucose-based anhydro-sugars and oligosaccharides

doi:10.1016/j.fuel.2018.07.075

GIEC OpenIR

	Role of different chain end types in pyrolysis of glucose-based anhydro-sugars and oligosaccharides
	Leng, Erwei 1; Costa, Mario 2; Peng, Yang 1; Zhang, Yang 1; Gong, Xun 1; Zheng, Anqing3 ; Huang, Yuqian 3; Xu, Minghou 1
	2018-12-15
发表期刊	FUEL
ISSN	0016-2361
卷号	234 页码:738-745
通讯作者	Gong, Xun(gx@hust.edu.cn) ; Xu, Minghou(mhxu@hust.edu.cn)
摘要	This study investigates the pyrolysis characteristics of glucose-based anhydro-sugars (maltosan and levoglucosan) and oligosaccharides (cellobiose, cyclodextrin and cellulose) using TG-FTIR-MS and the role of the reducing and levoglucosan ends in cellulose pyrolysis. During the slow pyrolysis of two disaccharides (cellobiose and maltosan), dehydration reactions were strongly promoted at low temperatures due to the polymerization, which led to the earlier decomposition of maltosan and cellobiose compared with other carbohydrates. Compared with the reducing end in cellobiose, the levoglucosan end in maltosan enhanced the cleavage of glycosidic bonds, which led to the maximum weight loss of maltosan at a lower temperature (i.e. 232 degrees C) than that of cellobiose (i.e. 299 degrees C). Furthermore, because of the stability of the levoglucosan end, a significantly higher char yield was obtained after an obvious carbonization process at the expense of gaseous volatiles. Fast pyrolysis of these samples at 500 degrees C was also conducted on Py-GC/MS and yields based on carbon of 28 products were identified. The results show that the reducing end prompted the rupture of pyran rings for furan species, while the stable structure of the levoglucosan end strongly promoted the formation of pyrans such as levoglucosenone. Finally, a mechanism for cellulose pyrolysis is proposed, which takes into consideration the effects of the different chain ends.
关键词	Cellulose Pyrolysis Levoglucosan end Reducing end Maltosan
DOI	10.1016/j.fuel.2018.07.075
关键词[WOS]	LIGNOCELLULOSIC BIOMASS PYROLYSIS ; DENSITY-FUNCTIONAL THEORY ; CELLULOSE FAST PYROLYSIS ; BIO-OIL ; LOW-TEMPERATURES ; MODEL-COMPOUND ; SLOW PYROLYSIS ; REDUCING END ; PY-GC/MS ; LEVOGLUCOSAN
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51776085] ; National Natural Science Foundation of China[51661125011] ; Fundacao para a Ciencia e a Tecnologia through IDMEC, under LAETA[UID/EMS/50022/2013]
WOS研究方向	Energy & Fuels ; Engineering
项目资助者	National Natural Science Foundation of China ; Fundacao para a Ciencia e a Tecnologia through IDMEC, under LAETA
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000445253100077
出版者	ELSEVIER SCI LTD
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/23904
专题	中国科学院广州能源研究所
通讯作者	Gong, Xun; Xu, Minghou
作者单位	1.Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Hubei, Peoples R China 2.Univ Lisbon, Inst Super Tecn, Dept Mech Engn, IDMEC, Lisbon, Portugal 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Leng, Erwei,Costa, Mario,Peng, Yang,et al. Role of different chain end types in pyrolysis of glucose-based anhydro-sugars and oligosaccharides[J]. FUEL,2018,234:738-745.
APA	Leng, Erwei.,Costa, Mario.,Peng, Yang.,Zhang, Yang.,Gong, Xun.,...&Xu, Minghou.(2018).Role of different chain end types in pyrolysis of glucose-based anhydro-sugars and oligosaccharides.FUEL,234,738-745.
MLA	Leng, Erwei,et al."Role of different chain end types in pyrolysis of glucose-based anhydro-sugars and oligosaccharides".FUEL 234(2018):738-745.