| The radical and bond cleavage behaviors of 14 coals during pyrolysis with 9,10-dihydrophenanthrene | |
| Liu, Muxin1,2,3; Yang, Jianli1,3; Yang, Yong1,3; Liu, Zhenyu4; Shi, Lei4; He, Wenjing4; Liu, Qingya4 | |
| 刊名 | Fuel
 |
| 2016-10-15 | |
| 卷号 | 182页码:480-486 |
| 关键词 | Coal pyrolysis Covalent bond Free radicals Kinetics Hydrogen donation |
| ISSN号 | 0016-2361 |
| DOI | 10.1016/j.fuel.2016.06.006 |
| 通讯作者 | Liu, zhenyu(liuzy@mail.buct.edu.cn) |
| 英文摘要 | The pyrolysis of 14 coals with carbon contents (c%) of 67.5-94.9% are studied in the presence of 9,10-dihydrophenanthrene (dhp) at 440 degrees c. the amounts of stable radicals in the coals and that generated in the pyrolysis are quantified by electron spin resonance (esr). the amounts of active radicals generated in the pyrolysis are quantified by the amounts of hydrogen donated by dhp. the changes in quantity of these radicals during the pyrolysis are correlated with the parameters representing the coal rank (c%, the amounts of aromatic and aliphatic carbon). it is found that the quantity of stable radicals of the coals in the pyrolysis increases with an increase in c%. the lignites and bituminous coals break up significantly in the first 2 min in the pyrolysis. all the coals contain some rigid structures that do not break at 440 degrees c and the structure can be categorized to fusinite. the quantities of active radicals generated in the pyrolysis are approximately 3 orders of magnitude higher than that of the stable radicals in the coals. the total amounts of cleavable bonds in the coals and the rate constants of the bond cleavage are determined by the first order kinetics. (c) 2016 elsevier ltd. all rights reserved. |
| WOS关键词 | ELECTRON-SPIN-RESONANCE ; AMERICAN COALS ; LIQUEFACTION ; CONVERSIONS ; KINETICS ; TIME |
| WOS研究方向 | Energy & Fuels ; Engineering |
| WOS类目 | Energy & Fuels ; Engineering, Chemical |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000379102600051 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2374693 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Liu, Zhenyu |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi Province, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Synfuels China Co Ltd, Natl Energy Ctr Coal Liquids, Beijing 101400, Peoples R China 4.Beijing Univ Chem Technol, State Key Lab Chem Recourse Engn, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Muxin,Yang, Jianli,Yang, Yong,et al. The radical and bond cleavage behaviors of 14 coals during pyrolysis with 9,10-dihydrophenanthrene[J]. Fuel,2016,182:480-486. |
| APA | Liu, Muxin.,Yang, Jianli.,Yang, Yong.,Liu, Zhenyu.,Shi, Lei.,...&Liu, Qingya.(2016).The radical and bond cleavage behaviors of 14 coals during pyrolysis with 9,10-dihydrophenanthrene.Fuel,182,480-486. |
| MLA | Liu, Muxin,et al."The radical and bond cleavage behaviors of 14 coals during pyrolysis with 9,10-dihydrophenanthrene".Fuel 182(2016):480-486. |
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