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首页> 外文会议>Energy technology 2018: Carbon dioxide management and other technologies >Extraction and Thermal Dissolution of Low-Rank Coal by N-Methyl-2-Pyrrolidinone
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Extraction and Thermal Dissolution of Low-Rank Coal by N-Methyl-2-Pyrrolidinone

机译：N-甲基-2-吡咯烷酮对低阶煤的萃取和热溶解

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摘要

In order to effectively use of low rank coal, the thermally dissolve coal (TDC) was extracted from four kinds of low-rank coals by N-2-methyl-2-purrolidinone(NMP) at high temperature and high pressure. The structures of thermally dissolve coal and residues were characterized by element analysis, FT-IR spectra. The effects of temperatures, coal rank, solid-liquid ratio and extraction time on the extraction yields of TDC were studied, respectively. Moreover, the extraction mechanism of TDC at mild conditions is proposed. The results show that the ash contents of TDCs from four raw coals are significantly lower than that of raw coals, and the volatile contents and H/C are significantly improved. For KL coal, with the increase of temperature, the extraction yield of KL-TDC is improved evidently from 33.75% to 56.25% and the ash content is decreased from 0.57% to 0.49% at 350 °C.
机译：为了有效利用低阶煤，在高温高压下用N-2-甲基-2-嘌呤环酮（NMP）从四种低阶煤中提取了热溶煤（TDC）。通过元素分析，FT-IR光谱对热溶煤和残渣的结构进行了表征。研究了温度，煤级，固液比和萃取时间对TDC萃取率的影响。此外，提出了温和条件下TDC的提取机理。结果表明，四种原煤中TDCs的灰分含量均显着低于原煤，其挥发分和H / C显着提高。对于KL煤，随着温度的升高，在350°C时KL-TDC的提取率从33.75％显着提高到56.25％，灰分从0.57％降低到0.49％。

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  • 来源
  • 会议地点 Phoenix(US)
  • 作者

    Jun Zhao; Haibin Zuo; Siyang Long; Jingsong Wang; Qingguo Xue;

  • 作者单位

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beiiing 100083, People's Republic of China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beiiing 100083, People's Republic of China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beiiing 100083, People's Republic of China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beiiing 100083, People's Republic of China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beiiing 100083, People's Republic of China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Low-rank coal; Extraction yield; Reaction mechanism;

    机译：低阶煤提取得率；反应机理;

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