首页> 外文学位 >EFFECTS OF STOICHIOMETRIC RATIO, SWIRL AND COAL TYPE ON SULFUR POLLUTANT FORMATION IN A COAL COMBUSTOR.
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EFFECTS OF STOICHIOMETRIC RATIO, SWIRL AND COAL TYPE ON SULFUR POLLUTANT FORMATION IN A COAL COMBUSTOR.

机译:化学计量比,旋流度和煤类型对煤燃烧器中硫污染物形成的影响。

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摘要

A laboratory-scale entrained-coal combustor was used to determine the effects of secondary swirl, stoichiometric ratio, coal type and moisture content on the formation of sulfur pollutants (SO(,2), H(,2)S, COS, and CS(,2)). Detailed local measurements within the reactor were obtained by analyzing solid-liquid-gas samples collected with a water-quenched probe. Increasing the O(,2)/coal ratio increased sulfur conversion and SO(,2) levels while H(,2)S, COS and CS(,2) levels decreased. Secondary swirl controlled the flame location and had a pronounced effect on the distribution of sulfur species formed at a stoichiometric ratio of 0.87. Decreasing coal moisture resulted in increased coal reactivity and sulfur conversion. Comparison of coal types was accomplished using a subbituminous coal containing a greater amount of pyritic sulfur and less organic sulfur than a bituminous coal. Because of differences in the relative conversion rates of organic and inorganic sulfur, the bituminous coal produced more SO(,2) and less H(,2)S, COS, and CS(,2) than the subbituminous coal.
机译:使用实验室规模的夹带煤燃烧器确定二次旋流,化学计量比,煤类型和水分含量对硫污染物(SO(,2),H(,2)S,COS和CS的形成的影响(,2))。通过分析使用水淬探针收集的固液气样品,可以获得反应器内的详细局部测量值。增加O(,2)/煤比可提高硫转化率和SO(,2)含量,而H(,2)S,COS和CS(,2)含量则降低。二次旋流控制了火焰的位置,并对以化学计量比为0.87形成的硫种类的分布具有显着影响。降低煤的水分导致提高的煤反应性和硫转化率。煤类型的比较是通过使用一种次烟煤来实现的,该次烟煤比烟煤含有更多的黄铁矿硫和更少的有机硫。由于有机硫和无机硫的相对转化率不同,烟煤比次烟煤产生更多的SO(,2)和更少的H(,2)S,COS和CS(,2)。

著录项

  • 作者

    ZAUGG, STEVEN DALE.;

  • 作者单位

    Brigham Young University.;

  • 授予单位 Brigham Young University.;
  • 学科 Chemical engineering.
  • 学位 Ph.D.
  • 年度 1984
  • 页码 263 p.
  • 总页数 263
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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