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首页> 外文期刊>Environmental Pollution >Construction of a regional inventory to characterize polycyclic aromatic hydrocarbon emissions from coal-fired power plants in Anhui, China from 2010 to 2030
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Construction of a regional inventory to characterize polycyclic aromatic hydrocarbon emissions from coal-fired power plants in Anhui, China from 2010 to 2030

机译：2010年至2030年，中国安徽省安徽省燃煤发电厂的多环芳烃排放区域库存的构建

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摘要

The infrastructures of coal-fired power plants in China have changed significantly since 2010, but the magnitude and characteristics of polycyclic aromatic hydrocarbon (PAH) emissions remain to be updated. In the present study, a unit-based PAH emission inventory for coal-fired power plants between 2010 and 2017 was constructed for Anhui Province, China. Atmospheric PAH emissions from pulverized coal (PC) and circulating fluidized bed (CFB) units in 2017 were 8600 kg and 7800 kg, respectively. The emission rates and intensities for CFB units (7.2 kg ton(-1) and 2.1 kg MW-1) were significantly higher than those for PC units (1.1 kg ton(-1) and 0.19 kg MW-1), primarily because CFB boilers were operated at lower combustion temperatures and poor combustion conditions compared to PC boilers. The distribution patterns of PAH emissions across different age groups largely reflected the time periods for constructing coal-fired units in Anhui and for the transition of small units to large ones. The accomplishment of ultralow emission technologies and phase-out of outdated coal-fired units were responsible for the decreasing trend of PAH emissions between 2012 and 2017. The warmer summer in 2013 and 2017 and colder winter in 2011 compared to other years probably caused increased use of air conditioners, resulting in increased electricity consumption and PAH emissions. Future PAH emissions would decrease by 45-57% during 2017-2030, benefitting from power plant fleet optimization, i.e., phasing out outdated coal-fired units and replacing them with large ones. With the best available optimized power plant fleets and end-of-pipe control measures accomplished in Anhui's CFPPs, PAH emissions in 2030 would potentially be reduced by 56-65%. (C) 2020 Elsevier Ltd. All rights reserved.
机译：自2010年以来，中国燃煤发电厂的基础设施发生了显着变化，但多环芳烃（PAH）排放的幅度和特点仍有待更新。在本研究中，2010年至2017年间燃煤发电厂的基于单位的PAH排放清单是为安徽省安徽省的燃煤发电厂。 2017年煤粉（PC）和循环流化床（CFB）单位的大气PAH排放分别为8600千克和7800千克。 CFB单位的排放率和强度（7.2kg（-1）和2.1千克Mw-1）显着高于PC单元（1.1千克（-1）和0.19千克MW-1），主要是因为CFB与PC锅炉相比，锅炉在较低的燃烧温度和燃烧条件下进行操作。不同年龄组的PAH排放的分布模式在很大程度上反映了在安徽中构建燃煤单元的时间段，并为大单位转变为大型单位。超级排放技术的实现和淘汰过时的燃煤单位负责2012年和2017年之间的PAH排放趋势。2013年和2017年的温暖夏季和2011年寒冷的冬季与其他年份相比可能导致使用增加空调，导致电力消耗增加和PAH排放量。 2017 - 2010年30月，未来的PAH排放将减少45-57％，从发电厂舰队优化中获益，即逐步淘汰过时的燃煤机组，并用大型淘汰。拥有最佳优化的优化发电厂车队和在安徽的CFPP中完成的管道终端控制措施，2030年的PAH排放可能会降低56-65％。 （c）2020 elestvier有限公司保留所有权利。

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  • 来源
    《Environmental Pollution》 |2021年第3期|115972.1-115972.8|共8页
  • 作者

    Wang Ruwei; Cai Jiawei; Cai Feixuan; Xia Linlin; Sun Xiangfei; Zeng Eddy Y.;

  • 作者单位

    Jinan Univ Sch Environm Guangdong Key Lab Environm Pollut & Hlth Guangzhou 511443 Peoples R China;

    Jinan Univ Sch Environm Guangdong Key Lab Environm Pollut & Hlth Guangzhou 511443 Peoples R China;

    Jinan Univ Sch Environm Guangdong Key Lab Environm Pollut & Hlth Guangzhou 511443 Peoples R China;

    Guangdong Univ Technol Inst Environm & Ecol Engn Guangzhou 510006 Peoples R China;

    Jinan Univ Sch Environm Guangdong Key Lab Environm Pollut & Hlth Guangzhou 511443 Peoples R China;

    Jinan Univ Sch Environm Guangdong Key Lab Environm Pollut & Hlth Guangzhou 511443 Peoples R China|Jinan Univ Res Ctr Low Carbon Econ Guangzhou Reg Guangzhou 510632 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Coal-fired power plant; Air pollution control device; Polycyclic aromatic hydrocarbons; Emission inventory; Climate change;

    机译：燃煤电厂;空气污染控制装置;多环芳烃;排放库存;气候变化;

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