| 两种不同还原性次烟煤可溶有机质分子组成差异 |
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| 引用本文： | 两种不同还原性次烟煤可溶有机质分子组成差异.两种不同还原性次烟煤可溶有机质分子组成差异[J].燃料化学学报,2018,46(7):769-777. |
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| 作者姓名： | 两种不同还原性次烟煤可溶有机质分子组成差异 |
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| 作者单位： | 1. Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China;
2. State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and Ministry Education, Taiyuan University of Technology, Taiyuan 030024, China;
3. Low Carbon Energy Institute, China University of Mining & Technology, Xuzhou 221008, China |
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| 基金项目： | The project was supported by the National Natural Science Foundation of China (21206188), Open Foundation from State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and Ministry Education (MKX201502), and National Undergraduate Training Programs for Innovation of China University of Mining and Technology (201610290036). |
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| 摘 要： | 本研究首先利用等体积二硫化碳/丙酮溶剂对弱还原性淖毛湖次烟煤（NS）和强还原性不连沟次烟煤（BS）进行萃取得到萃取物和萃余物（ERs），再利用环己烷和甲醇对ERs进行连续热溶得到热溶物（SPs）。NS和BS的萃取物产率分别为10.6%和8.0%，在300℃下NS和BS热溶物的总收率分别为36.3%和11.5%，这说明NS中存在更多可溶有机质。NS和BS萃取物中化合物均以芳烃为主。与BS相比，NS热溶物中脂肪烃和酚类的相对含量明显较高，萃取物中化合物的相对分子量分布范围较宽，而热溶物中化合物的相对分子量分布范围较窄。
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| 关 键 词： | 次烟煤 可溶有机质 分子组成 热溶 |
| 收稿时间： | 29 March 2018 |
Differences in molecular composition of soluble organic species in two Chinese sub-bituminous coals with different reducibility |
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| Fa-peng WU,Hao LU,Jie YAN,Rui-yu WANG,Yun-peng ZHAO,Xian-yong WEI.Differences in molecular composition of soluble organic species in two Chinese sub-bituminous coals with different reducibility[J].Journal of Fuel Chemistry and Technology,2018,46(7):769-777. |
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| Authors: | Fa-peng WU Hao LU Jie YAN Rui-yu WANG Yun-peng ZHAO Xian-yong WEI |
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| Institution: | 1. Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China;2. State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and Ministry Education, Taiyuan University of Technology, Taiyuan 030024, China;3. Low Carbon Energy Institute, China University of Mining & Technology, Xuzhou 221008, China |
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| Abstract: | Naomaohu sub-bituminous (NS) with weak reducibility and Buliangou sub-bituminous (BS) with strong reducibility were extracted in isometric carbon disulfide/acetone mixed solvent to get extracts and extraction residues (ERs). The ERs were thermal dissolved in cyclohexane and methanol to get soluble portions (SPs). The yields of the extracts from NS (ENS) and BS (EBS) are 10.6% and 8.0%, respectively, and the total yields of the SPs from NS and BS at 300°C are 36.3% and 11.5%, respectively, indicating the solubility of the organic species in NS are better than that in BS. Arenes are the dominated compounds both in ENS and EBS. The relative contents of aliphatic hydrocarbons and phenols in the SPs of NS are obvious higher than those of BS. The molecular weight distribution of the compounds in ENS is wider than that in EBS, while the molecular weight distribution of the compounds in the SPs from NS is narrower than that from BS. |
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| Keywords: | sub-bituminous coals soluble organic species molecular composition thermal dissolution |
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