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题名:
Insight into the solvent, temperature and time effects on the hydrogenolysis of hydrolyzed lignin
作者: Shu, Riyang1,2,3,4; Zhang, Qi1,2,3; Ma, Longlong1,2,3; Xu, Ying1,2,3; Chen, Pengru1,2,3,4; Wang, Chenguang1,2,3; Wang, Tiejun1,2,3
刊名: BIORESOURCE TECHNOLOGY
出版日期: 2016-12-01
卷号: 221, 页码:568-575
关键词: Hydrogenolysis ; Hydrolyzed lignin ; Solvent effect ; Temperature effect ; Repolymerization
DOI: 10.1016/j.biortech.2016.09.043
文章类型: Article
英文摘要: The aim of this study is to explore the reaction mediums and conditions for producing high yield of valuable monomers from concentrated sulfuric acid hydrolyzed lignin. The solvent, temperature and time effects on the hydrogenolysis of hydrolyzed lignin were investigated under the catalysis of Pd/C and CrCl3. Supercritical methanol exhibits the best depolymerization performance, because of its unique diffusion, dissolution and acid-base properties. Afterwards, the influence of reaction temperature and time on depolymerization, repolymerization and coking during hydrogenolysis was examined in methanol. The high temperature is found to favor the depolymerization, with the beta-O-4 linkages cleaved significantly. However, the repolymerization is promoted simultaneously, and a high amount of beta-beta groups form. These reactions are in constant competition with each other and the repolymerization is preferred at excessive high temperature, producing bulk char residues, that is coking. This study will provide a beneficial reference for the maximization of lignin waste valorization. (C) 2016 Elsevier Ltd. All rights reserved.
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Technology
类目[WOS]: Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
研究领域[WOS]: Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
关键词[WOS]: SUPERCRITICAL METHANOL ; CATALYTIC DEPOLYMERIZATION ; BIO-OIL ; EFFICIENT ; BIOMASS ; ETHANOL ; DECOMPOSITION ; VALORIZATION ; CONVERSION ; AROMATICS
收录类别: SCI
项目资助者: National Key Technology R&D Program of China(2014BAD02B01) ; Natural Science Foundation of China(51476178) ; Youth Science and technology innovation talents plan of Guangdong Province(2015TQ01N652) ; Youth Innovation Promotion Association of Chinese Academy of Sciences
语种: 英语
WOS记录号: WOS:000386241000070
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.giec.ac.cn/handle/344007/13749
Appears in Collections:中国科学院广州能源研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
3.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Shu, Riyang,Zhang, Qi,Ma, Longlong,et al. Insight into the solvent, temperature and time effects on the hydrogenolysis of hydrolyzed lignin[J]. BIORESOURCE TECHNOLOGY,2016,221:568-575.
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