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首页> 外文期刊>Fuel >Co-pyrolysis of Baiyinhua lignite and pine in an infrared-heated fixed bed to improve tar yield
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Co-pyrolysis of Baiyinhua lignite and pine in an infrared-heated fixed bed to improve tar yield

机译：白银花褐煤与松木在红外固定床中共热解以提高焦油收率

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摘要

Co-pyrolysis of Baiyinhua lignite and pine was studied to reveal the synergistic effects in an infrared-heated fixed bed reactor. The effect of feeding mode, heating rate (0.5-20 degrees C/s), pyrolysis temperature (450-600 degrees C) and blending ratio on products distribution and tar compositions were investigated. The results show that the synergetic effects between lignite and pine vary with feeding modes, and the yield and compositions of the resultant tar suffer remarkable feed influence. The tar yield from feeding mode U (coal layer in upper layer) is 8.25 wt.% higher than others. Moreover, a columnar feeding mode was specifically designed and the pine was substituted by compressed pine to reveal the importance of void space among feeding particles for volatiles reaction. When the blending ratio is 1:1, the tar yield and the difference between experimental and calculated tar yield reach the maximum. The study on the effect of temperature and heating rate on co-pyrolysis show best copyrolysis behavior occurs at 550 degrees C at a heating rate of 10 degrees C/s.
机译：研究了白银花褐煤和松木的共热解，以揭示在红外加热的固定床反应器中的协同作用。研究了进料方式，加热速率（0.5-20摄氏度/秒），热解温度（450-600摄氏度）和混合比对产物分布和焦油组成的影响。结果表明，褐煤与松木的协同作用随进料方式的不同而变化，焦油的收率和组成受到进料的影响。进料方式U（上层煤层）的焦油产率比其他方法高8.25 wt。％。此外，特别设计了一种柱状进料方式，用压缩松木代替松木，以显示进料颗粒之间的空隙空间对于挥发物反应的重要性。当混合比为1：1时，焦油收率以及实验焦油收率和计算的焦油收率之间的差异达到最大。关于温度和加热速率对共热解的影响的研究表明，最佳的复分解行为在550°C且加热速率为10°C / s时发生。

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  • 来源
    《Fuel》 |2020年第jul15期|117739.1-117739.9|共9页
  • 作者

  • 作者单位

    Dalian Univ Technol Sch Chem Engn Inst Coal Chem Engn State Key Lab Fine Chem Dalian 116024 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Pine; Lignite; Fast co-pyrolysis; Feeding mode; Volatiles reaction;

    机译：松树;褐煤;快速共热解;进纸方式挥发反应;

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