In-Stack Condensible Particulate Matter Measurements and Issues
In-Stack Condensible Particulate Matter Measurements and Issues
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DOI：
10.1080/10473289.2000.10464002
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发表时间：
2000-02
影响因子：
2.7
通讯作者：
L. Corio;J. Sherwell
中科院分区：
文献类型：
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作者：
L. Corio;J. Sherwell
摘要化石燃料机组排放的颗粒物可分为可过滤颗粒物和可浓缩颗粒物。可压缩PM通常不被测量，因为联邦和大多数州的法规不要求来源这样做。为了确定可压缩PM排放相对于可过滤PM排放的大小，并更好地了解可压缩PM测量问题，对实际的美国环境保护局(EPA)方法202(针对堆叠内可压缩PM10)和EPA方法201/201A(针对堆内可过滤PM10)的结果进行了审查和分析。方法202和201/201A对几个燃煤锅炉的结果表明，可冷凝PM平均约占PM10烟囱排放总量的四分之三(76%)。方法对燃油和天然气锅炉的202和201/201A结果表明，平均而言，可冷凝PM占PM10烟囱排放总量的50%。方法对燃用石油、天然气和煤油的燃气轮机的202和201/201A结果表明，平均而言，可冷凝PM占PM10烟囱排放总量的69%。根据这些有限的测量，可压缩PM可以对化石燃料机组的PM10总排放量做出重大贡献。由于在采样过程中溶解的二氧化硫转化为硫酸盐化合物，测量数据中可能存在正偏差(表明可凝聚的PM比实际排放的更多)。此外，这些方法202的结果证实，无论燃烧的燃料类型如何，平均而言，可压缩PM主要由无机物组成。
ABSTRACT Particulate matter (PM) emitted from fossil fuel-fired units can be classified as either filterable or condensible PM. Condensible PM typically is not measured because federal and most state regulations do not require sources to do so. To determine the magnitude of condensible PM emissions relative to filterable PM emissions and to better understand condensible PM measurement issues, a review and analysis of actual U.S. Environmental Protection Agency (EPA) Method 202 (for in-stack condensible PM10) and EPA Method 201/201A (for in-stack filterable PM10) results were conducted. Methods 202 and 201/201A results for several coal-burning boilers showed that the condensible PM, on average, comprises approximately three-fourths (76%) of the total PM10 stack emissions. Methods 202 and 201/201A results for oil- and natural gas-fired boilers showed that the condensible PM, on average, comprises 50% of the total PM10 stack emissions. Methods 202 and 201/201A results for oil-, natural gas-, and kerosene-fired combustion turbines showed that the condensible PM, on average, comprises 69% of the total PM10 stack emissions. Based on these limited measurements, condensible PM can make a significant contribution to total PM10 emissions for fossil fuel-fired units. A positive bias (indicating more condensible PM than is actually emitted) may exist in the measured data due to the conversion of dissolved sulfur dioxide to sulfate compounds in the sampling procedure. In addition, these Method 202 results confirm that condensible PM, on average, is composed mostly of inorganic matter, regardless of the type of fuel burned.