| Quantitative study on cross-linking reactions of oxygen groups during liquefaction of lignite by a new model system | |
| Wang, Zhiqing1,2; Bai, Zongqing1; Li, Wen1; Chen, Haokan1; Li, Baoqing1 | |
| 刊名 | Fuel processing technology
 |
| 2010-04-01 | |
| 卷号 | 91期号:4页码:410-413 |
| 关键词 | Oxidized coal Cross-linking reaction Liquefaction New model system |
| ISSN号 | 0378-3820 |
| DOI | 10.1016/j.fuproc.2009.05.010 |
| 通讯作者 | Bai, zongqing(baizq@sxicc.ac.cn) |
| 英文摘要 | Cross-linking reactions (clr) of oxygen groups during liquefaction of lignite were quantitatively studied by a new model system. chinese yitai lignite (yt) was first oxidized by nitric acid at 70 c and about 98% of the oxidized sample could be dissolved in tetrahydrofuran (thf) at room temperature. then benzyl alcohol, phch(2)oh (ba), as a model compound was added into the oxidized coal, also acted as solvent in the subsequent liquefaction. temperature-programmed reactions (tpr) at liquefaction conditions under hydrogen atmosphere were performed to evaluate the clr by quantitative analysis of thf-insoluble solid products (thfi) after reaction. extensive clr were observed even under high pressure of h(2) at 200-400 degrees c, and more than 51.7% and 81.2% of the thfs fraction was converted into the thfi at 300 degrees c with tetralin (tet) and ba as solvent, respectively. the thfi fraction was almost solely caused by the clr, which makes it possible to quantitatively study the clr by analyzing the amount of the cross-linked solid products (csp). the pyrolysis behaviours of csp and oxidized coal were examined by tg. other model compounds containing oxygen-functional groups (alcohol, phenol, carboxyl, carbonyl and ether groups) can also be used in this model system to study clr of oxygen groups in low-rank coals. (c) 2009 elsevier b.v. all rights reserved. |
| WOS关键词 | HYDROGEN-TRANSFER-REACTIONS ; AROMATIC CARBOXYLIC-ACIDS ; LOW-RANK COAL ; THERMOLYSIS ; PYROLYSIS ; SOLVENT ; SURFACE |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Engineering |
| WOS类目 | Chemistry, Applied ; Energy & Fuels ; Engineering, Chemical |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000276703900007 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2406389 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Bai, Zongqing |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Coal Convers, Inst Coal Chem, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhiqing,Bai, Zongqing,Li, Wen,et al. Quantitative study on cross-linking reactions of oxygen groups during liquefaction of lignite by a new model system[J]. Fuel processing technology,2010,91(4):410-413. |
| APA | Wang, Zhiqing,Bai, Zongqing,Li, Wen,Chen, Haokan,&Li, Baoqing.(2010).Quantitative study on cross-linking reactions of oxygen groups during liquefaction of lignite by a new model system.Fuel processing technology,91(4),410-413. |
| MLA | Wang, Zhiqing,et al."Quantitative study on cross-linking reactions of oxygen groups during liquefaction of lignite by a new model system".Fuel processing technology 91.4(2010):410-413. |
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