Selectively biorefining levoglucosan from NaOH pretreated corncobs via fast pyrolysis

doi:10.1007/s10570-019-02625-4

	Selectively biorefining levoglucosan from NaOH pretreated corncobs via fast pyrolysis
	Jiang, Liqun 1; Wu, Yaxiang 1; Zhao, Zengli 1; Li, Haibin 1; Zhao, Kun 1; Zhang, Fan 2
刊名	CELLULOSE
	2019-09-01
卷号	26 期号:13-14 页码:7877-7887
关键词	Biomass Alkali pretreatment Fast pyrolysis Levoglucosan
ISSN号	0969-0239
DOI	10.1007/s10570-019-02625-4
通讯作者	Jiang, Liqun(lqjiang@ms.giec.ac.cn) ; Zhao, Kun(zhaok@ms.giec.ac.cn) ; Zhang, Fan(Zhangfan@xtbg.ac.cn)
英文摘要	Fast pyrolysis is a comparable technology with enzyme or acid hydrolysis for saccharification of biomass. The low yield of levoglucosan and the formation of inhibitors to biocatalysts from lignocellulose hamper the fermentable utilization of pyrolysate. In this study, aiming to enhance the production of levoglucosan, dilute alkali pretreatment was performed prior to fast pyrolysis of corncobs. The yield of levoglucsoan from pretreated corncobs was significantly improved (34.8%) as compared to that from un-treated corncobs (3.0%), which was mainly attributed to the removal of alkaline and alkaline earth metals as well as lignin fraction by NaOH pretreatment. Conversely, NaOH pretreatment suppressed the formation of acids (from 11.1 to 2.2%), furans (from 2.5 to 2.0%), ketones (from 15.7 to 9.8%) and phenols (from 4.8 to 1.3%), which were common inhibitors to the biocatalysts. Accordingly, NaOH pretreatment facilitated further selective conversion of biomass in fast pyrolysis and made the pyrolysate more fermentable. [GRAPHICS] .
资助项目	Project Foundation of Guangdong province and Guangzhou city[2017A020216007] ; Project Foundation of Guangdong province and Guangzhou city[201707010236] ; National Natural Science Foundation of China[51606204] ; National Natural Science Foundation of China[51876208]
WOS关键词	LIGNOCELLULOSIC BIOMASS PYROLYSIS ; CELLULOSE-LIGNIN INTERACTIONS ; ALKALI PRETREATMENT ; HEMICELLULOSE ; GASIFICATION ; GLUCOSE ; WASTE ; ACID
WOS研究方向	Materials Science ; Polymer Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000483695400021
资助机构	Project Foundation of Guangdong province and Guangzhou city ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/25561]
专题	中国科学院广州能源研究所
通讯作者	Jiang, Liqun; Zhao, Kun; Zhang, Fan
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & De, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Biomass Grp, Key Lab Trop Plant Resources & Sustainable Use, Xishuangbanna Trop Bot Garden, 88 Xuefulu, Kunming 650223, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Liqun,Wu, Yaxiang,Zhao, Zengli,et al. Selectively biorefining levoglucosan from NaOH pretreated corncobs via fast pyrolysis[J]. CELLULOSE,2019,26(13-14):7877-7887.
APA	Jiang, Liqun,Wu, Yaxiang,Zhao, Zengli,Li, Haibin,Zhao, Kun,&Zhang, Fan.(2019).Selectively biorefining levoglucosan from NaOH pretreated corncobs via fast pyrolysis.CELLULOSE,26(13-14),7877-7887.
MLA	Jiang, Liqun,et al."Selectively biorefining levoglucosan from NaOH pretreated corncobs via fast pyrolysis".CELLULOSE 26.13-14(2019):7877-7887.