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首页> 外文期刊>Fuel >Integrated coal pyrolysis with dry reforming of low carbon alkane over Ni/La_2O_3 to improve tar yield
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Integrated coal pyrolysis with dry reforming of low carbon alkane over Ni/La_2O_3 to improve tar yield

机译：在Ni / La_2O_3上对低碳烷烃进行干重整的整体煤热解工艺可提高焦油收率

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摘要

Integrated coal pyrolysis with dry reforming of methane with addition of low carbon alkane provides an effective method for improving tar yield. One of the key issues is the development of catalysts for dry reforming of low carbon alkane (DRA). In this study, Ni/La2O3 was prepared by co-precipitation and used for DRA. A mixture of ethane and methane in molar ratio of 1:8 was reformed by CO2 and integrated with coal pyrolysis to improve tar yield. The result showed that tar yield under integrated process of coal pyrolysis with DRA over Ni/La2O3 at 600 degrees C is 1.18 times that under N-2. Ni/La2O3 shows less carbon deposition, and better performance than Ni/Al2O3, and the tar yield over Ni/La2O3 is 1.09 times that over Ni/Al2O3 at 600 degrees C. Less carbon deposition over Ni/La2O3 is mainly due to the formation of La2O2CO3 under dry reforming. The tar yield remains stable after the Ni/La(2)O(3 )was used for 6 times, indicating good regenerability of Ni/La2O3.
机译：加入低碳烷烃，干法甲烷重整的煤热解法提供了提高焦油收率的有效方法。关键问题之一是开发用于低碳烷烃（DRA）干重整的催化剂。在本研究中，通过共沉淀制备了Ni / La2O3，并将其用于DRA。乙烷和甲烷的摩尔比为1：8的混合物通过CO2进行重整，并与煤热解合并以提高焦油收率。结果表明，在600℃Ni / La2O3上DRA进行煤热解一体化过程中焦油收率是N-2的1.18倍。 Ni / La2O3表现出更少的碳沉积，并且比Ni / Al2O3表现更好，并且在600摄氏度时Ni / La2O3上的焦油产率是Ni / Al2O3的1.09倍。Ni / La2O3上的碳沉积较少主要是由于形成重整条件下制备La2O2CO3 Ni / La（2）O（3）使用6次后，焦油收率保持稳定，表明Ni / La2O3具有良好的再生性。

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  • 来源
    《Fuel》 |2020年第15期|117092.1-117092.11|共11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

    Coal pyrolysis; Dry reforming; Low carbon alkane; Ni/La2O3; Tar;

    机译：煤热解;干重整;低碳烷烃;Ni / La2O3;柏油;

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