The Protection of C-O Bond of Pine Lignin in Different Organic Solvent Systems

doi:10.1002/slct.201904884

GIEC OpenIR

	The Protection of C-O Bond of Pine Lignin in Different Organic Solvent Systems
	Wang, Dongling 1,2,3,4; Wang, Wenjin 1,2,3,4; Lv, Wei 1,2,3; Xu, Ying1,2,3 ; Liu, Jianguo 1,2,3; Wang, Haiyong 1,2,3; Wang, Chenguang 1,2,3; Ma, Longlong1,2,3
	2020-04-07
发表期刊	CHEMISTRYSELECT
ISSN	2365-6549
卷号	5 期号:13 页码:3850-3858
通讯作者	Xu, Ying(xuying@ms.giec.ac.cn) ; Liu, Jianguo(liujg@ms.giec.ac.cn)
摘要	The methods of extraction and degradation of lignin from biomass are very important for obtaining high value-added chemical precursors. In this paper, pine wood powder was selected as the feedstock to investigate the effect of different organic solvent systems (ethanol, ethylene glycol, 1, 4-butanediol and acetone) on the lignin extraction using different radio of H2SO4 and acetic acid. The extraction yields were calculated, the solvent lignin structure was analyzed by SEM, Elemental Analyzer, GPC, FT-IR, HSQC and the organosolv lignin was depolymerized over NaOH and Pd/C in ethanol. The results showed that the molecular weight of all lignin extracted from biomass by different organic solvents were lower than 2000 g mol(-1). Among the organic solvents, acetic acid and glycol could react with the gamma and & x251; position of the beta-O-4 bond in lignin, which protect the C-O bond during the extraction treatment. The analysis of depolymerization products suggested that the ethylene glycol had the best ability of retaining the structures of lignin and dissolution. About 17.74 wt. % aromatic compounds were obtained from the ethylene glycol lignin in 2 MPa H-2 at 240 degrees C, which were mainly phenyl alcohol compounds. Ethylene glycol lignin could give more aromatic hydrocarbon compounds and phenols than the other two kinds of lignin. Ethylene glycol and 1,4-butanediol was also found in the depolymerization product respectively. The protection of the C-O bond offers effective strategies for directional depolymerization design.
关键词	Extraction Hydrogenolysis Lignin Organic solvents Structure characterization
DOI	10.1002/slct.201904884
关键词[WOS]	DELIGNIFICATION MECHANISM ; KRAFT LIGNIN ; CATALYTIC DEPOLYMERIZATION ; ORGANOSOLV LIGNIN ; MODEL COMPOUNDS ; EXTRACTION ; BIOMASS ; TRANSFORMATION ; FRACTIONATION ; METAL
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000523711400015
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：4[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/344007/27041
专题	中国科学院广州能源研究所
通讯作者	Xu, Ying; Liu, Jianguo
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Wang, Dongling,Wang, Wenjin,Lv, Wei,et al. The Protection of C-O Bond of Pine Lignin in Different Organic Solvent Systems[J]. CHEMISTRYSELECT,2020,5(13):3850-3858.
APA	Wang, Dongling.,Wang, Wenjin.,Lv, Wei.,Xu, Ying.,Liu, Jianguo.,...&Ma, Longlong.(2020).The Protection of C-O Bond of Pine Lignin in Different Organic Solvent Systems.CHEMISTRYSELECT,5(13),3850-3858.
MLA	Wang, Dongling,et al."The Protection of C-O Bond of Pine Lignin in Different Organic Solvent Systems".CHEMISTRYSELECT 5.13(2020):3850-3858.