THE EFFECT OF REPLACEMENT OF PART OF THE COAL DUST BY PYROLYSIS GASES ON THE ENVIRONMENTAL AND TECHNOLOGICAL PERFORMANCE OF THE BOILER TPP 312 DURING ITS OPERATION AT LOW LOADS


  • S.G. Kobzar Institute of Engineering Thermophysics, NAS of Ukraine
  • A.A. Khalatov Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine
Keywords: biomass, pyrolysis gas, coal combustion, nitrogen oxides

Abstract

The paper was consider the influence of the replacement of part of coal dust by pyrolysis gases on ecological and technological operational parameters of TPP 312 boiler during its operation at low loads. The following values of boiler loads 210, 190, 170 and 150 MW were taken into account. The part of biomass pyrolysis products in the heat balance of the boiler was taken in 10 and 20%.

It was found that when feeding pyrolysis products of biomass with primary air evenly through all burners in operation, there is an increase in heat flow through the bottom of the furnace and it is possible to expand the lower limit of the boiler to a load of 170 MWe.

The substitution of coal for biomass pyrolysis products does not reduce the generation of nitrogen oxides. On the contrary, there is a slight increase in the emission of nitrogen oxides with an increase in the part of pyrolysis gases for boilers loads of 210…170 MWe.

References

1. Kobzar, S., & Khalatov, A. [Use of the reburning technology with biomass pyrolysis products as a reburning fuel to reduce emissions of nitrogen oxides from TPP 312 boiler] // Thermophysics and Thermal Power Engineering, 2021, 43 (1), 82-88. https://doi.org/10.31472/ttpe.1.2021.10 (in Ukr.)
2. Kobzar SG, Khalatov A.A. [Determination of zones of increased erosion of furnace screens depending on the load mode of the boiler CCI 312 Ladyzhynska TPP] // Promyshlennaya teplotehnika [Industrial Heat Engineering]. 2011. 33, № 4. P. 55-62. (in Ukr.)
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6. Kobzar, S., & Khalatov, A. [Application of the biomass pyrolisis products as a reburning fuel for nitrogen oxides reduction: testing the chemical kinetics mechanism]. Thermophysics and Thermal Power Engineering, 2020, 42(2), 92-98. https://doi.org//10.31472/ttpe.2.2020.10 (in Ukr.)
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Abstract views: 236
PDF Downloads: 66
Published
2022-08-01
How to Cite
Kobzar, S., & Khalatov, A. (2022). THE EFFECT OF REPLACEMENT OF PART OF THE COAL DUST BY PYROLYSIS GASES ON THE ENVIRONMENTAL AND TECHNOLOGICAL PERFORMANCE OF THE BOILER TPP 312 DURING ITS OPERATION AT LOW LOADS. Thermophysics and Thermal Power Engineering, 44(2), 92-98. Retrieved from https://ihe.nas.gov.ua/index.php/journal/article/view/495

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