澳大利亚烟煤热解的拉曼光谱研究

柳晓飞 尤静林 王媛媛 LU Li-ming 解迎芳 余立旺 伏清

引用本文: 柳晓飞, 尤静林, 王媛媛, LU Li-ming, 解迎芳, 余立旺, 伏清. 澳大利亚烟煤热解的拉曼光谱研究[J]. 燃料化学学报, 2014, 42(3): 270-276. shu
Citation:  LIU Xiao-fei, YOU Jing-lin, WANG Yuan-yuan, LU Li-ming, XIE Ying-fang, YU Li-wang, FU Qing. Raman spectroscopic study on the pyrolysis of Australian bituminous coal[J]. Journal of Fuel Chemistry and Technology, 2014, 42(3): 270-276. shu

澳大利亚烟煤热解的拉曼光谱研究

  • 基金项目:

    国家自然科学基金重点项目(50932005) (50932005)

    国家自然科学基金(20973107,40973046) (20973107,40973046)

    上海市科委科技基金(12520709200) (12520709200)

    澳大利亚CSIRO Minerals Down Under Flagship资助。 

摘要: 采用拉曼光谱考察了澳大利亚烟煤在常压、温度为298~1 473 K条件下,不同热解气氛(Ar和N2)下的热解性能。结合AD/AallAG/AallWG以及PG-PD等表征参数分析发现,澳大利亚烟煤的热解可以分为三个阶段:298~873 K为固有小分子和大分子键能较弱处断裂分解产生的小分子化合物的析出沉积和挥发;873~1 273 K为大分子化合物裂解挥发和炭化;1 273~1 473 K为焦炭的石墨化。在N2和Ar气氛经1 473 K热处理后,焦炭的不同杂化结构的碳相对含量呈现明显差异。不同保温时间下,其煤焦碳结构演变趋势相似,但保温时间越长,越有利于小分子挥发分在较低温度的挥发。

English

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  • 收稿日期:  2013-10-27
  • 网络出版日期:  2013-12-16
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