Emission factors, ozone and secondary organic aerosol formation potential of volatile organic compounds emitted from industrial biomass boilers

Emission factors, ozone and secondary organic aerosol formation potential of volatile organic compounds emitted from industrial biomass boilers

论文摘要

To evaluate the potential benefits of biomass use for air pollution control, this paper identified and quantified the emissions of major reactive organic compounds anticipated from biomass-fired industrial boilers. Wood pellets(WP) and straw pellets(SP) were burned to determine the volatile organic compound emission profiles for each biomass-boiler combination. More than 100 types of volatile organic compounds(VOCs) were measured from the two biomass boilers. The measured VOC species included alkanes, alkenes and acetylenes, aromatics, halocarbons and carbonyls. A single coal-fired boiler(CB) was also studied to provide a basis for comparison. Biomass boiler 1(BB1) emitted relatively high proportions of alkanes(28.9%–38.1% by mass) and alkenes and acetylenes(23.4%–40.8%),while biomass boiler 2(BB2) emitted relatively high proportions of aromatics(27.9%–29.2%)and oxygenated VOCs(33.0%–44.8%). The total VOC(TVOC) emission factors from BB1(128.59–146.16 mg/kg) were higher than those from BB2(41.26–85.29 mg/kg). The total ozone formation potential(OFP) ranged from 6.26 to 81.75 mg/m3 with an average of 33.66 mg/m3 for the two biomass boilers. The total secondary organic aerosol potential(SOAP) ranged from 61.56 to 211.67 mg/m3 with an average of 142.27 mg/m3 for the two biomass boilers.The emission factors(EFs) of TVOCs from biomass boilers in this study were similar to those for industrial coal-fired boilers with the same thermal power. These data can supplement existing VOC emission factors for biomass combustion and thus enrich the VOC emission inventory.

论文目录

  • Introduction
  • 1. Experiments
  •   1.1. Industrial boilers
  •   1.2. Fuel
  •   1.3. Sampling system
  •   1.4. VOC analysis
  •   1.5. Estimation of OFP and SOAP
  • 2. Results and discussion
  •   2.1. VOC emission concentrations
  •   2.2. Emission factors
  •   2.3. OFP and SOAP for VOCs
  •   2.4. Diagnostic ratio
  • 3. Conclusions
  • 文章来源

    类型: 期刊论文

    作者: Chunmei Geng,Wen Yang,Xuesong Sun,Xinhu Wang,Zhipeng Bai,Xia Zhang

    来源: Journal of Environmental Sciences 2019年09期

    年度: 2019

    分类: 工程科技Ⅰ辑

    专业: 环境科学与资源利用

    单位: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences,Beijing Municipal Research Institute of Environmental Protection,China National Environmental Monitoring Centre

    基金: supported by the National Natural Science Foundation of China(No.41275135),the Chinese National Key Research and Development Plan(No.2017YFC0212503)

    分类号: X513

    页码: 64-72

    总页数: 9

    文件大小: 239K

    下载量: 35

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