...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Plasma-assisted decomposition of a biomass gasification tar analogue into lower hydrocarbons in a synthetic product gas using a dielectric barrier discharge reactor
【24h】

Plasma-assisted decomposition of a biomass gasification tar analogue into lower hydrocarbons in a synthetic product gas using a dielectric barrier discharge reactor

机译：使用介电势垒放电反应器将生物质气化焦油类似物等离子体辅助分解为合成气中的低级烃

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cleaning product gas from biomass gasification is one of the major challenges for the application of biomass as a renewable energy source for power generation and value-added chemical synthesis. Non-thermal plasmas are a novel alternative technology for decomposing such tar compounds. In this research, the use of a dielectric barrier discharge (DBD) reactor was investigated for the decomposition of toluene (a tar surrogate) in a synthetic product gas containing H-2, CO and CO2. The effect of residence time (0.95-2.82 s), plasma power (5-40 W), concentration (20-82 g/N m(3)), and temperature (ambient - 400 degrees C) were investigated. It was demonstrated that the percentage removal of tar increased with increasing plasma power and residence time. 99%+ removal of toluene was observed at a plasma power of 40 W (the highest power used) and a residence time of 2.82 s (the highest residence time used). At ambient temperature, the toluene decomposition products include CO, lighter hydrocarbons, and solid residue. Unfortunately, at low temperatures, there was substantial solid residue formation. The synergetic effect of temperature and plasma was investigated to determine whether it could decrease residue formation. It was found that the solid residue completely disappeared at 400 degrees C. Furthermore, the selectivity and the yield of lower hydrocarbons increased with operating temperature. However, the yield of CO decreased due to the termination of radicals through the combination of CO and O at higher temperatures. Overall, this work demonstrates that toluene can be almost completely converted to smaller molecules by a DBD non-thermal plasma, and that a degree of control can be established by varying power, residence time and temperature, including eliminating the problem of solid residue formation.
机译：从生物质气化中清洁产物气是将生物质用作发电和增值化学合成的可再生能源的主要挑战之一。非热等离子体是用于分解此类焦油化合物的新颖替代技术。在这项研究中，研究了使用介质阻挡放电（DBD）反应器分解含H-2，CO和CO2的合成气中的甲苯（焦油替代物）。研究了停留时间（0.95-2.82 s），等离子体功率（5-40 W），浓度（20-82 g / N m（3））和温度（环境温度-400摄氏度）的影响。结果表明，焦油的去除百分率随等离子体功率和停留时间的增加而增加。在40 W（使用的最高功率）的等离子体功率和2.82 s（使用的最高停留时间）的停留时间下，甲苯去除率达到99％以上。在环境温度下，甲苯分解产物包括一氧化碳，轻烃和固体残留物。不幸的是，在低温下，会形成大量的固体残留物。研究了温度和等离子体的协同作用，以确定其是否可以减少残留物的形成。发现固体残余物在400℃下完全消失。此外，随着操作温度，低级烃的选择性和产率增加。然而，由于在较高温度下通过CO和O的组合而使自由基终止，因此CO的产率降低。总的来说，这项工作表明，DBD非热等离子体可以将甲苯几乎完全转化为较小的分子，并且可以通过改变功率，停留时间和温度来建立一定程度的控制，包括消除固体残留物形成的问题。

著录项

  • 来源
    《Fuel》 |2019年第1期|1412-1419|共8页
  • 作者

    Saleem Faisal; Zhang Kui; Harvey Adam;

  • 作者单位

    Newcastle Univ, Sch Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England;

    Newcastle Univ, Sch Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England;

    Newcastle Univ, Sch Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England;

  • 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

    Gasification; Tar; Non-thermal plasma; Dielectric barrier discharge;

    机译：气化;焦油;非热等离子体;介电势垒放电;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号