Rapid and productive extraction of high purity cellulose material via selective depolymerization of the lignin-carbohydrate complex at mild conditions

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	Rapid and productive extraction of high purity cellulose material via selective depolymerization of the lignin-carbohydrate complex at mild conditions
	Yang, Jiming 1,2; Lu, Xingmei 1,2; Liu, Xiaomin 1; Xu, Junli 1; Zhou, Qing 1,2; Zhang, Suojiang 1,2
刊名	GREEN CHEMISTRY
	2017-05-07
卷号	19 期号:9 页码:2234-2243
ISSN号	1463-9262
英文摘要	A new green cellulose extraction method - the selective degradation dissolution extraction (SDDE) method based on the [Bmim] Cl-AS (i.e. amino sulfonic acid (AS)) solvent system - was found which could rapidly extract a high yield and purity of cellulose from cornstalk at relatively low temperatures in a remarkably short time. In the SDDE method, the lignin-carbohydrate complex protective layer (LCCPL), which wraps around the cellulose, was selectively depolymerized into small molecules; as a result, the rapid dissolution of lignocellulose biomass and the efficient removal of lignin and hemicellulose from the regenerated material (RM) were successfully achieved. The cellulose content of the RM could reach 99.16 +/- 0.15%, which is the highest purity of cellulose extracted from the lignocellulose biomass in one step by IL solvent systems. The delignification rate could reach 97.56 +/- 0.29% while the hemicellulose was completely removed in only 1 h after the cornstalk powder was dissolved in [Bmim] Cl-AS (the AS content was 1.5 wt%) at 100 degrees C. The result showed that the addition of AS not only improved the purity of cellulose in the RM but also increased its yield. The yield of cellulose increased from 19.94 +/- 0.45% to 71.04 +/- 0.78% after the addition of AS. As the mild fractionation conditions reduced consumption of energy greatly as well as that the additive was cheap and environmentally friendly, the SDDE might be able to provide a feasible path to achieve an efficient cellulose extraction from lignocellulose biomass. In addition, utilization of the lignocellulose biomass mostly focused on the preparation of bioethanol via hydrolysis and fermentation. This work provided an alternative that high purity cellulose derivatives and cellulose composites could be produced from the lignocellulose biomass.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	SOLID ACID CATALYST ; IONIC LIQUIDS ; LIGNOCELLULOSIC BIOMASS ; ARCHAEOLOGICAL WOODS ; ENZYMATIC-HYDROLYSIS ; SULFAMIC ACID ; STATE NMR ; DISSOLUTION ; EFFICIENT ; PRETREATMENT
收录类别	SCI
语种	英语
WOS记录号	WOS:000400836500025
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/22836]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.Chinese Acad Sci, Beijing Key Lab Ionic Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Jiming,Lu, Xingmei,Liu, Xiaomin,et al. Rapid and productive extraction of high purity cellulose material via selective depolymerization of the lignin-carbohydrate complex at mild conditions[J]. GREEN CHEMISTRY,2017,19(9):2234-2243.
APA	Yang, Jiming,Lu, Xingmei,Liu, Xiaomin,Xu, Junli,Zhou, Qing,&Zhang, Suojiang.(2017).Rapid and productive extraction of high purity cellulose material via selective depolymerization of the lignin-carbohydrate complex at mild conditions.GREEN CHEMISTRY,19(9),2234-2243.
MLA	Yang, Jiming,et al."Rapid and productive extraction of high purity cellulose material via selective depolymerization of the lignin-carbohydrate complex at mild conditions".GREEN CHEMISTRY 19.9(2017):2234-2243.