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Characterization of emissions from a pilot-scale combustor operating on coal blended with woody biomass

机译：在混合了木质生物质的煤炭上运行的中试燃烧室的排放特征

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Emissions generated from the combustion of coal have been a subject of regulation by the United States Environmental Protection Agency (U.S. EPA) and State agencies for years, as they have been associated with adverse effects on human health and the environment. Over the past several decades, regulations on these facility emissions have become more stringent and have therefore caused industry to look toward new pre- and post-combustion control technologies. In more recent years, there has been a "push" toward renewable and cleaner burning alternative fuels as replacements for traditional fossil fuels. Part of this "push" has been accomplished by States and Regions offering incentives and options for renewable portfolios, which over half of the states now have in some form.The current study investigates the potential changes in both gaseous and particulate emissions from the use of a variety of woody biomass materials as a drop-in replacement for coal as compared to use of 100% bituminous coal. Four different biomass materials are blended individually with coal at 20% and 40% by mass for testing on the U.S. EPA's Multi-Pollutant Control Research Facility, a pilot-scale coal-fired facility located in Research Triangle Park, North Carolina. Emissions are calculated based on measurements from the flue gas to characterize gaseous species (CO, CO2, NOX, SO2, other acid gases, and several organic hazardous air pollutants) as well as fine and ultrafine particulate (mass, size distribution, number count, elemental carbon, organic carbon, and black carbon) and compared among each combination of fuels and 100% bituminous coal.
机译：多年来，由煤燃烧产生的排放一直是美国环境保护署（EPA）和国家机构的法规对象，因为它们与对人类健康和环境的不利影响有关。在过去的几十年中，有关这些设施排放的法规变得更加严格，因此促使工业界寻求新的燃烧前和燃烧后控制技术。近年来，人们对可再生和清洁燃烧的替代燃料进行了“推动”，以替代传统的化石燃料。这种“推动”的一部分已经由各州和地区实现，它们为可再生能源投资组合提供了激励和选择，目前超过一半的州已经以某种形式提供了这种补贴。本研究调查了使用可再生能源产生的气体和颗粒物排放的潜在变化。与使用100％烟煤相比，多种木质生物质材料可以替代煤炭。将四种不同的生物质材料分别与煤炭按质量百分比20％和40％混合，以在美国EPA的多污染物控制研究设施上进行测试，该设施是位于北卡罗来纳州研究三角公园的中试规模燃煤设施。排放是根据烟气中的测量值计算出来的，以表征气态物质（CO，CO2，NOX，SO2，其他酸性气体和几种有机有害空气污染物）以及细和超细颗粒（质量，尺寸分布，数量，元素碳，有机碳和黑碳），并在每种燃料和100％烟煤的组合中进行比较。

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