Hydrothermal Depolymerization of Lignin: Understanding the Structural Evolution
文献类型：期刊论文
| 作者 | Long, Jinxing; Xu, Ying; Wang, Tiejun; Shu, Riyang; Zhang, Qi; Zhang, Xiaohong; Fu, Juan; Ma, Longlong |
| 刊名 | bioresources
 |
| 出版日期 | 2014-11-01 |
| 卷号 | 9期号:4页码:7162-7175 |
| 关键词 | Lignin Depolymerization Repolymerization Structural evolution |
| 英文摘要 | the structural evolution of panicum virgatum lignin during hydrothermal depolymerization was investigated. product distribution from various temperatures was studied using gas chromatography-mass spectrometry (gc-ms) and gel permeation chromatography (gpc) analysis. the physical-chemical properties of initial lignin, tetrahydrofuran soluble fraction, and char were also comparatively characterized by elemental analysis, scanning electron microscopy (sem), thermogravimetry (tg), and fourier transform infrared (ft-ir) spectroscopy. results showed that both the depolymerization and repolymerization were significantly temperature-dependent. the undesired char formation becomes obvious when the temperature is greater than 180 degrees c. further investigation demonstrated that h lignin is the most accessible for hydrothermal depolymerization, whereas s lignin is the most recalcitrant. moreover, under the thermal effect and the dissolution of the subcritical water, the basic structure of lignin was first collapsed and then further decomposed into low-molecular weight products by the fracture of ether bonds, accompanied by char formation after repolymerization and dehydration. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | materials science, paper & wood |
| 研究领域[WOS] | materials science |
| 关键词[WOS] | ionic liquid pairs ; catalytic depolymerization ; sugarcane bagasse ; kraft lignin ; hot-water ; conversion ; chemicals ; cellulose ; biomass ; delignification |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000345396900110 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/10656]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Long, Jinxing,Xu, Ying,Wang, Tiejun,et al. Hydrothermal Depolymerization of Lignin: Understanding the Structural Evolution[J]. bioresources,2014,9(4):7162-7175. |
| APA | Long, Jinxing.,Xu, Ying.,Wang, Tiejun.,Shu, Riyang.,Zhang, Qi.,...&Ma, Longlong.(2014).Hydrothermal Depolymerization of Lignin: Understanding the Structural Evolution.bioresources,9(4),7162-7175. |
| MLA | Long, Jinxing,et al."Hydrothermal Depolymerization of Lignin: Understanding the Structural Evolution".bioresources 9.4(2014):7162-7175. |
入库方式： OAI收割
来源：广州能源研究所
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