Journal of Shandong University(Engineering Science) ›› 2021, Vol. 51 ›› Issue (1): 120-127.doi: 10.6040/j.issn.1672-3961.0.2020.513

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Emission characteristics of PM1.0-bound polycyclic aromatic hydrocarbons(PAHs)from different stoves and fuels in rural areas

DUAN Shengfei1, YANG Lingxiao1,2*, LI Jingshu1, GAO Hongliang1, ZHANG Wan1, ZHANG Xiongfei1, QI Anan1, WANG Pengcheng1, WANG Yiming1, TUO Xiong1   

  1. 1. Environmental Research Institute, Shandong University, Qingdao 266237, Shandong, China;
    2. Jiangsu Collaborative Innovation Center for Climate Change, Nanjing 210023, Jiangsu, China
  • Published:2021-03-01

Abstract: To study the emission factors and emission characteristics of PM1.0-bound PAHs from the combustion of different fuels and improve stoves in rural areas, the samples produced by 8 fuels burned in 2 improved stoves were collected using the dilution channel method, and the concentration of PAHs was analyzed. The results showed that the emission factor was in the range of 0.38~39.37 mg·kg-1. When the same fuel was burned in different improved stoves, the gasifier stoves emission factor of PAHs was lower than the decoupling stoves. The order of PAHs emission factors of various fuels burned in the gasifier stove was EFbulk coal>EFcorn straw>EFbituminous coal briquette>EFpine wood>EFoak wood>EFsemi-coal≈ EFanthracite briquette>EFcorn straw briquette. Among biomass fuels, PHE, PLA, and PYR were the main species of PAHs produced by combustion, while the dominant species in coals were PHE, FLA, PYR, and BbF. The proportion of LMW PAHs produced by the gasifier stove was higher than the decoupling stove, while the proportion of MMW PAHs and HMW PAHs produced by the gasifier stove was lower than the decoupling stove. In the case of meeting the heating demand of residents, it was estimated that the best combination was gasifier stove+semi-coke, anthracite briquette, or corn straw briquette.

Key words: PM1.0, rural solid fuels, emission factor, clean heating, reduction efficiency

CLC Number: 

  • X513
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