State of the art in the field of emission reduction of sulphur dioxide produced during coal combustion

Pyshyev, Serhiy; Prysiazhnyi, Yuriy; Shved, Mariia; Namieśnik, Jacek; Bratychak, Michael

doi:10.1080/10643389.2018.1426968

Cited by 13 publications

(3 citation statements)

References 61 publications

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“…In addition, there was a good linear correlation between the concentrations of SO 2− 4 and NO − 3 (R 2 = 0.79, p < 0.001; figure 8) during the heating season, possibly indicating that SO 2− 4 and NO − 3 had the common source. And SO 2 , as a precursor of SO 2− 4 , has been proved to be predominantly generated from coal combustion (Xu et al 2000, Pyshyev et al 2017. Thus, it further supports that NO − 3 in the atmosphere were mostly generated by NO x from coal combustion in the heating season.…”

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confidence: 56%

Investigating atmospheric nitrate sources and formation pathways between heating and non-heating seasons in urban North China

Yan

et al. 2023

Environ. Res. Lett.

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In urban North China, nitrate (NO3-) is a primary contributor to haze formation. So far, the production processes and source apportionments of atmospheric NO3- during the heating season (i.e., the wintertime) have not yet been well understood. This study determined δ15N-NO3-, δ18O-NO3-, and Δ17O-NO3 of aerosol samples to compare the potential sources and formation pathways of atmospheric NO3- during heating (November to March) and non-heating (April to May) seasons. Combining stable isotope composition with the MixSIAR model based on Δ17O-NO3- showed that NO3 + DMS/HC pathway was the dominant process of atmospheric nitrate formation during the heating season (mean = 52.88 ± 16.11%). During the non-heating season, the contributions of NO3 + DMS/HC (mean = 37.89 ± 13.57%) and N2O5 + H2O (mean = 35.24 ± 3.75%) pathways were comparable. We found that Δ17O-NO3 was negatively correlated with wind speed and positively correlated with relative humidity during the heating season, possibly associated with the sources and production of atmospheric NO3-. In specific, in a dust storm event, the very low Δ17O-NO3 is likely associated with particles from land surface. Under the premise of considering 15N fractionation, the constraint-based on δ15N-NO3- illustrated that coal combustion was the major source of NOx emission during the heating season, and the relative contribution of coal combustion decreased rapidly from the heating season (mean = 42.56 ± 15.50%) to the non-heating season (mean = 21.86 ± 4.91%). Conversely, the proportion of NOx emitted by soil microbes rose significantly from the heating (mean = 9.67 ± 5.99%) to non-heating season (mean = 24.02 ± 11.65%). This study revealed differences in the sources and formation processes of atmospheric NO3 during the heating and non-heating seasons, which are of significance to atmospheric nitrogen oxide/nitrate pollution mitigation.

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confidence: 56%

Investigating atmospheric nitrate sources and formation pathways between heating and non-heating seasons in urban North China

Yan

et al. 2023

Environ. Res. Lett.

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“…It is known that the mining, burning, cooking, pulverized coal producing, or processes in a fluidized bed is an important part of the technological chain of the enterprise, and the method of crushing coal has a greater impact on the quality and quantity of products [ [1] , [2] , [3] , [4] , [5] , [6] ]. Therefore, at this time, coal remains a raw material that significantly affects the mechanical strength indicators of coke and the energy consumption of coal preparation plants.…”

Section: Introductionmentioning

confidence: 99%

The use of Protodiakonov and Hardgrove methods to determine the effect of coal quality on its grinding ability

Pyshyev,

Miroshnichenko,

Koval

et al. 2023

Heliyon

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“…The most common form of FGD is the wet scrubber [4][5][6][7]. The process consists of scrubbing the sulfur dioxide (SO 2 )-containing flue gas with a wet slurry of limestone (calcium carbonate, CaCO 3 ).…”

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confidence: 99%

Flue Gas Desulfurization (FGD) Wastewater Treatment Using Polybenzimidazole (PBI) Hollow Fiber (HF) Membranes

et al. 2021

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Polybenzimidazole (PBI) hollow fiber membranes were used to treat flue gas desulfurization (FGD) wastewater (WW) from a coal fired power plant. Membranes were tested using both single salt solutions and real FGD WW. The PBI membranes showed >99% rejection for single salt solutions of NaCl, MgCl2, CaSO4, and CaCl2 at approximately 2000 PPM (parts per million). The membranes also showed >97% rejection for FGD WW concentrations ranging from 6900 to 14,400 PPM total dissolved solids (TDS). The pH of the FGD WW was adjusted between 3.97–8.20, and there was an optimal pH between 5.31 and 7.80 where %rejection reached a maximum of >99%. The membranes were able to operate stably up to 50 °C, nearly doubling the water flux as compared to room temperature, and while maintaining >98% salt rejection.

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State of the art in the field of emission reduction of sulphur dioxide produced during coal combustion

Cited by 13 publications

References 61 publications

Investigating atmospheric nitrate sources and formation pathways between heating and non-heating seasons in urban North China

Investigating atmospheric nitrate sources and formation pathways between heating and non-heating seasons in urban North China

The use of Protodiakonov and Hardgrove methods to determine the effect of coal quality on its grinding ability

Flue Gas Desulfurization (FGD) Wastewater Treatment Using Polybenzimidazole (PBI) Hollow Fiber (HF) Membranes

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