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An effect of tar model compound toluene treatment with high-temperature flames

机译：焦油模型复合甲苯的高温火焰处理效果

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摘要

A major drawback of renewable gasification technologies is contamination of the syngas produced with "tar", which can induce fouling in downstream equipment. The effect of continuous injection of acetylene and hydrogen high-temperature flames into the blend of gases containing a tar model compound toluene in order to decompose the latter has been studied. The experimental results indicate that treatment of the reaction mixture with the acetylene and hydrogen oxy-flames promotes reforming of toluene into H_2 and CO. The same heating values of the flames result in different ratios between H_2 and CO; this points out on a difference in mechanism of that reforming implying an interaction between toluene and combustion products which include a large specter of intermediate species (radicals). A better understanding of these mechanisms will help to obtain an optimal ratio between external oxy-flame and internal combustion regularly employed to increase the temperature of the producer gas in order to decompose volatile organics and tars in it. Utilization of oxy-flames for high-temperature clean-up of producer gas (gasification products) is very similar to the application of plasma steam tested with positive results in semi-industrial gasification units.
机译：可再生气化技术的主要缺点是“焦油”对合成气的污染，这会导致下游设备结垢。已经研究了将乙炔和氢高温火焰连续喷射到含有焦油模型化合物甲苯的气体混合物中以分解后者的效果。实验结果表明，用乙炔和氢氧焰处理反应混合物可促进甲苯重整为H_2和CO。相同的火焰热值导致H_2与CO的比例不同；这指出了重整机理的不同，即重整意味着甲苯和燃烧产物之间的相互作用，其中包括大量的中间物种（自由基）。更好地理解这些机理将有助于在外部氧气火焰和内部燃烧之间获得最佳比率，该燃烧通常用于增加生产气体的温度，以分解其中的挥发性有机物和焦油。氧化火焰用于高温净化生产气（气化产品）的过程与等离子蒸汽的应用非常相似，在半工业化气化单元中的测试结果令人满意。

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  • 来源
    《Fuel》 |2012年第1期|p.369-372|共4页
  • 作者

    Mikhail Granovskii; Regan Gerspacher; Todd Pugsley; Francisco Sanchez;

  • 作者单位

    Chemical Engineering Department, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK, Canada S7N5A9;

    Chemical Engineering Department, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK, Canada S7N5A9;

    Chemical Engineering Department, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK, Canada S7N5A9;

    Chemical Engineering Department, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK, Canada S7N5A9;

  • 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

    combustion; gasification; biomass tar; steam reforming; toluene;

    机译：燃烧;气化;生物质焦油蒸汽重整;甲苯;

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