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首页> 外文期刊>Fuel >Bituminous coal deep regulated ultra-low NO_x flameless combustion with fluidized self-preheating fuel: A 2 MW_(th) experimental study
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Bituminous coal deep regulated ultra-low NO_x flameless combustion with fluidized self-preheating fuel: A 2 MW_(th) experimental study

机译：沥青煤深稳压超低NO_X无焰燃烧与流化的自我预热燃料：A 2 MW_（TH）实验研究

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摘要

Higher effective combustion with fundamental pollution ultra-low NOx emissions for pulverized coal is multi-disciplinarily sought in recent decades. In this work, a novel megawatt-class pilot-scaled experimental investigation of Shenmu bituminous coal preheated semi-gasification combustion (PSGC), non-dimensional momentum parameters and modified binary fuels combustion organization was implemented to obtain both original ultra-low NOx emissions and high combustion efficiency. Depended on the fluidization preheated physicochemical modification for raw pulverized coal and deep reducing NOx emission methods, the modified Shenmu bituminous coal was constructed to combust with preheating ultra-low NOx methodology to obtain the deep-controlled original ultra-low NOx emission with high burnout ratio. The results showed that the thermal input was 1.64 MWth and the minimum average original NOx emission was 49.6 mg/m(3) at 6%O-2. Meanwhile, the combustion efficiency was 99.4% with the momentum ratio between inner and outer secondary air (MRsa) was 0.26. The upped air-to-fuel stoichiometric ratio (Phi(A/F)(pa)) 0.22 as fluidized preheating air ratio improved the conversion ratio (CRf) of raw fuel components and further promoted the reduction conversion ratio for both hot char-N and volatiles-N in this special phyciochemical conversing process in the fluidized preheating partial gasification combustor.
机译：近几十年来较高的污染煤炭煤炭的基本污染超低NOx排放量较高的燃烧是多学科的。在这项工作中，实施了神木沥青煤预热半气化燃烧（PSGC），非维度动量参数和改进二进制燃料燃烧组织的新型兆瓦级试验试验研究，以获得原始的超低NOx排放和高燃烧效率。依赖于流化预热物理化学改性原料粉煤和深度还原NOx排放方法，构建改良的神木沥青煤由预热超低NOx方法燃烧，以获得具有高燃烧比的深控原始超低NOx排放。结果表明，热量输入为1.64兆瓦，最小平均原始NOx排放为49.6mg / m（3），在6％O-2。同时，燃烧效率为99.4％，内外二次空气（MRSA）之间的动量比为0.26。随着流化预热空气比的上升空气到燃料化学计量比（PHI（A / F）（PA））0.22改善了原料燃料分量的转化率（CRF），并进一步促进了热焦炭-N的还原转化率在这种特殊的嗜好预热部分气化燃烧器中的这种特殊的嗜好性交换过程中的挥发物-N。

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  • 来源
    《Fuel》 |2021年第15期|120549.1-120549.11|共11页
  • 作者

    Liu Jingzhang; Liu Yuhua; Zhu Jianguo; Ouyang Ziqu; Man Chengbo; Zhu Shujun; Zhang Yi; Lyu Qinggang;

  • 作者单位

    Chinese Acad Sci Inst Engn Thermophys Beijing 100190 Peoples R China|Dalian Natl Lab Clean Energy Dalian 116023 Peoples R China;

    Chinese Acad Sci Inst Engn Thermophys Beijing 100190 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Inst Engn Thermophys Beijing 100190 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China|Dalian Natl Lab Clean Energy Dalian 116023 Peoples R China;

    Chinese Acad Sci Inst Engn Thermophys Beijing 100190 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China|Dalian Natl Lab Clean Energy Dalian 116023 Peoples R China;

    Chinese Acad Sci Inst Engn Thermophys Beijing 100190 Peoples R China|Dalian Natl Lab Clean Energy Dalian 116023 Peoples R China;

    Chinese Acad Sci Inst Engn Thermophys Beijing 100190 Peoples R China|Dalian Natl Lab Clean Energy Dalian 116023 Peoples R China;

    Chinese Acad Sci Inst Engn Thermophys Beijing 100190 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Inst Engn Thermophys Beijing 100190 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China|Dalian Natl Lab Clean Energy Dalian 116023 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

    Ultra-low NOx; CFB; Bituminous coal; Gasification combustion; Preheating combustion;

    机译：超低NOx;CFB;沥青煤;气化燃烧;预热燃烧;

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