The Protection of C-O Bond of Pine Lignin in Different Organic Solvent Systems
文献类型：期刊论文
| 作者 | Wang, Dongling1,2,3,4; Wang, Wenjin1,2,3,4; Lv, Wei2,3,4; Xu, Ying2,3,4 ; Liu, Jianguo2,3,4; Wang, Haiyong2,3,4; Wang, Chenguang2,3,4; Ma, Longlong2,3,4
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| 刊名 | CHEMISTRYSELECT
 |
| 出版日期 | 2020-04-07 |
| 卷号 | 5期号:13页码:3850-3858 |
| 关键词 | Extraction Hydrogenolysis Lignin Organic solvents Structure characterization |
| ISSN号 | 2365-6549 |
| DOI | 10.1002/slct.201904884 |
| 通讯作者 | Xu, Ying(xuying@ms.giec.ac.cn) ; Liu, Jianguo(liujg@ms.giec.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | DELIGNIFICATION MECHANISM ; KRAFT LIGNIN ; CATALYTIC DEPOLYMERIZATION ; ORGANOSOLV LIGNIN ; MODEL COMPOUNDS ; EXTRACTION ; BIOMASS ; TRANSFORMATION ; FRACTIONATION ; METAL |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000523711400015 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.giec.ac.cn/handle/344007/27040]  |
| 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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 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. |
入库方式： OAI收割
来源：广州能源研究所
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