| 三种高变质程度煤热解过程中H2的逸出特征研究 |
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| 引用本文： | 李美芬,曾凡桂,贾建波,谢克昌.三种高变质程度煤热解过程中H2的逸出特征研究[J].燃料化学学报,2007,35(2):237-240. |
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| 作者姓名： | 李美芬 曾凡桂 贾建波 谢克昌 |
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| 作者单位： | Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China |
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| 基金项目： | 国家自然科学基金;教育部长江学者奖励计划;山西省青年学术带头人项目 |
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| 摘 要： | 氢气是煤热解的主要气体产物之一。近年来,随着氢能源研究热潮的兴起,煤制氢成为煤转化技术新的研究热点。由于煤的热解是煤热转化过程的初次阶段,深入分析煤热解过程中氢的析出特征不仅可以深入理解煤的热解机理,而且也可以为煤热转化的后续工艺设计提供基础。同时,也是理解地
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| 关 键 词： | 煤热解 H2 逸出特征 |
| 文章编号： | 0253-2409(2007)02-0237-04 |
| 收稿时间： | 2006-06-18 |
| 修稿时间： | 2006年6月18日 |
TG/MS study on evolution characteristics of hydrogen from pyrolysis of three high rank coals |
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| LI Mei-fen,ZENG Fan-gui,JIA Jian-bo,XIE Ke-chang.TG/MS study on evolution characteristics of hydrogen from pyrolysis of three high rank coals[J].Journal of Fuel Chemistry and Technology,2007,35(2):237-240. |
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| Authors: | LI Mei-fen ZENG Fan-gui JIA Jian-bo XIE Ke-chang |
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| Abstract: | Pyrolysis of three high rank coals,Changcun,Rujigou and Jincheng,were investigated by TG,and the evolved hydrogen was on-line analyzed by mass spectroscopy.The results show that Rujigou and Jincheng coals have higher initial pyrolysis temperature,higher temperature of maximum weight loss rate and lower maximum weight loss rate.This indicates that the macromolecular structure tends to be stable with the increase of coal rank.Analysis of the evolution characteristics of hydrogen indicates that the initial temperatures(t0) of hydrogen evolution increases with the increase of carbon content.The maximum rate temperature(tmax) is the highest for Changcun coal.This maybe relates to the low aromaticity of Changcun coal.The condensation between the aromatic hydrocarbons will occur up to higher temperature.The evolution intensity of hydrogen from Changcun coal is obviously higher than that for Rujigou and Jincheng coal. |
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| Keywords: | H2 |
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