Advertisement

Environmental Science and Pollution Research

, Volume 26, Issue 19, pp 19220–19227 | Cite as

Influence of NO2 and SO2 on the specific resistance of dust in flue gas

  • Pan Zhang
  • Yuan Yao
  • Yankun Li
  • Shaoyu Yuan
  • Liqiang QiEmail author
Research Article

Abstract

The influence of flue gas composition on the specific resistance of coal-fired fly ash is studied in this paper. We conclude that the negative electrons of NO2 and SO2 gases are strong. The probabilities of electron desorption on SO2 and NO2 negative ions are lower than that in air atmosphere at high temperature. Therefore, the introduction of SO2 causes NO2 to reduce the specific resistance value of coal-fired fly ash. When the pores on the surface of fly ash particles are filled with SO2, no change will occur in NO2, average pore size, pore volume, and specific surface area of fly ash particles, thereby resulting in fly ash that remains unchanged from the resistance value. When humidity increases, the surface conduction effect is greatly enhanced, and the specific resistance value is lowered considerably. Therefore, the specific resistance of dust can be reduced by humidification.

Keywords

Fly ash Specific resistance Sulfur dioxide Nitrogen dioxide Humidity 

Notes

Funding information

This work was supported by the National Natural Science Foundation of China (Grant No. 21376072) and the Fundamental Research Funds for the Central Universities (Grant No. 2017MS140).

References

  1. Blanchard D, Atten P (2002) Correlation between current density and layer structure for fine particle deposition in a laboratory electrostatic precipitator. IEEE Trans Ind Appl 38:832–839CrossRefGoogle Scholar
  2. Cui SP, Hao RL, Fu D (2019) Integrated method of non-thermal plasma combined with catalytical oxidation for simultaneous removal of SO2 and NO. Fuel. 246:365–374CrossRefGoogle Scholar
  3. Durga P, Lakshminarayana T, Narasimham JRK et al (1999) Automatic control and management of electrostatic precipitator. IEEE Trans Ind Appl 35:561–567CrossRefGoogle Scholar
  4. Fan SM (2003) Improvement measures of dust removal efficiency of power plant electrostatic precipitator, electric power construction, vol 09, pp 56–57Google Scholar
  5. Lanzerstorfer C, Steiner D (2016) Characterization of sintering dust collected in the various fields of the electrostatic precipitator. Environ Technol 37(12):1559–1567CrossRefGoogle Scholar
  6. Liu JR (2006) Experimental study on the influence Mechanism of Zhungel Coal Ash Properties on Electric Dust CollectionGoogle Scholar
  7. Meikap BC, Kundu G, Biswas MN (2002) Scrubbing of fly-ash laden SO2 in modified multistage bubble column scrubber. AICHE J 48:2074–2083CrossRefGoogle Scholar
  8. Qi LQ, Yuan YT (2013) Mechanism of the effect of alkali metal on the electrostatic precipitability of fly ash. Fuel. 107:848–851CrossRefGoogle Scholar
  9. Qi LQ, Xu J, Yao Y et al (2018) Effects of coal blending in electrostatic precipitation efficiency—Inner Mongolia, China. Environ Sci Pollut Res 25:31421–31426CrossRefGoogle Scholar
  10. Qi LQ, Han TY, Zhang YJ (2019a) Electrostatic precipitability of TiB2-Fe-Mo-Co ceramic-metal composites. J Alloys Compd 778:507–513CrossRefGoogle Scholar
  11. Qi LQ, Li JT, Yao Y, Zhang YJ (2019b) Heavy metal poisoned and regeneration of selective catalytic reduction catalysts. J Hazard Mater 366:492–500CrossRefGoogle Scholar
  12. Qi LQ, Yao Y, Han TY et al (2019c) Research on the electrostatic characteristic of coal-fired fly ash. Environ Sci Pollut Res 26:7123–7131CrossRefGoogle Scholar
  13. Shanthakumar S, Singh DN, Phadke RC (2008) Influence of flue gas conditioning on fly ash characteristics. Fuel. 87:3216–3222CrossRefGoogle Scholar
  14. Sretenovic I, Farkhondehkavaki M, Kortschot M et al (2014) Factors affecting the electrical resistivity of kraft recovery boiler precipitator ash. TAPPI J 13(7):31–39Google Scholar
  15. Stabik J, Chomiak M (2016) Graded epoxy–hard coal composites: surface resistivity study. J Compos Mater 50(27):3765–3777CrossRefGoogle Scholar
  16. Xie H, Wang JA, Stein E (1998) Direct fractal measurement and multifractal properties of fracture surfaces. Phys Lett A 242:41–50CrossRefGoogle Scholar
  17. Yuan YT, Zhao Y, Zhang JP (1997) Effect of coal rank for the different coalification on the electric conductivity of fly ash. China Environ Sci 17:458–461 (In Chinese)Google Scholar
  18. Zhang P, Tian XF, Fu D (2018) CO2 removal in tray tower by using AAILs activated MDEA aqueous solution. Energy. 161:1122–1132CrossRefGoogle Scholar
  19. Zheng CH, Liu XT, Yan P, Zhang Y, Wang Y, Qiu K, Gao X (2018) Measurement and prediction of fly ash resistivity over a wide range of temperature. Fuel. 216:673–680CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and EngineeringNorth China Electric Power UniversityBaodingPeople’s Republic of China
  2. 2.MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and EngineeringNorth China Electric Power UniversityBeijingPeople’s Republic of China

Personalised recommendations