Migration and distribution characteristics of organic and inorganic fractions in condensable particulate matter emitted from an ultralow emission coal-fired power plant

Song, Jianwu; Lu, Shengyong; Wu, Yujia; Zhou, Chenyang; Li, Xiaodong; Li, Jingwei

doi:10.1016/j.chemosphere.2019.125346

Cited by 50 publications

(15 citation statements)

References 19 publications

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“…The standard curves of n-alkanes and phthalates were established for quantitative analysis based on the peak area and concentration. The operating parameters of the GC/MS are consistent for the detection of these two typical organic pollutants in CPM, which are shown in previous studies (Song et al, 2020;Wu et al, 2021d, c).…”

Section: A C C E P T E D Msupporting

confidence: 84%

“…It is observed that the emission concentrations of FPM with different particle sizes 198 from different loads of the unit are close, all below 3 mg Nm -3 . Previous studies(Li et 199 al., 2017b;Li et al, 2019;Song et al, 2020) have shown that the removal efficiency 200 of LLT-ESP could reach more than 99% for FPM of various particle sizes, and WFGD201 and WESP also have certain removal effects for FPM. Results demonstrated that 202 because the APCDs in the coal-fired power plant with ultra-low emission 203 transformation have extremely high efficiency in the removal of FPM, factors such as 204 flue gas temperature and unit load have little effect on the emission concentration of 205 FPM.…”

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confidence: 99%

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Effects of the Changes of Load and Flue Gas Temperature on the Emission of Particulate Matter from the Coal-fired Unit

Liu

et al. 2022

Aerosol Air Qual. Res.

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Due to the rapid development of new energy power generation, most coal-fired power plants cannot always operate at full capacity. The changes in flue gas temperature at the inlet of low-low temperature electrostatic precipitator and unit load are the important factors affecting the emission of condensable and filterable particulate matter (CPM and FPM). CPM and FPM were sampled from a typical ultra-low emission coal-fired power unit with different operating loads (650, 850, and 1000 MW) and flue gas temperature (90 and 100 °C). The emission concentration of FPM, organic and inorganic components of CPM were obtained. The representative organic matter n-alkanes and phthalates in CPM (C-N and C-P) were quantified. The concentrations of CPM emitted from the coal-fired unit ranged from 6.66-8.93 mg Nm -3 , which was 2.4-6.2 times higher than FPM. The emission concentration of CPM was the lowest from the unit under high load and low flue gas temperature. The decrease of flue gas temperature increased of SO4 2− emission concentration, which was the soluble ion with the highest concentration in CPM. The effect of unit load and flue gas temperature changes on monocomponent C-N and C-P was limited; however, the effect on its total emission concentration was consistent with that on CPM. The concentrations of n-alkanes and phthalates in CPM accounted for more than 20% at all four stages.

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Section: A C C E P T E D Msupporting

confidence: 84%

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confidence: 99%

Effects of the Changes of Load and Flue Gas Temperature on the Emission of Particulate Matter from the Coal-fired Unit

Liu

et al. 2022

Aerosol Air Qual. Res.

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“…The CPM emission concentration investigated by Li et al at a 1030 MW ULE CFPP was 7.9 mg/Nm 3 , and organic fractions comprised 54% of CPM, which are similar to the test results obtained in this study. According to the results reported by Zheng et al, Li et al, and Song et al, organic compositions of CPM emitted from CFPPs were mainly alkanes, esters, toluene, etc. Although Song et al quantified some organic components, including n-alkanes and phthalates in CPM, those measured components accounted for less than 15% of the organic fraction of the CPM.…”

Section: Resultsmentioning

confidence: 84%

“…According to the results reported by Zheng et al, Li et al, and Song et al, organic compositions of CPM emitted from CFPPs were mainly alkanes, esters, toluene, etc. Although Song et al quantified some organic components, including n-alkanes and phthalates in CPM, those measured components accounted for less than 15% of the organic fraction of the CPM. More systematic and extensive studies are needed in the future to more accurately quantify all organic components.…”

Section: Resultsmentioning

confidence: 84%

Non-Negligible Stack Emissions of Noncriteria Air Pollutants from Coal-Fired Power Plants in China: Condensable Particulate Matter and Sulfur Trioxide

Bai

Liu

et al. 2020

Environ. Sci. Technol.

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In this study, we investigated the emission characteristics of condensable particulate matter (CPM) and sulfur trioxide (SO3) simultaneously through ammonia-based/limestone-based wet flue gas desulfurization (WFGD) from four typical coal-fired power plants (CFPPs) by conducting field measurements. Stack emissions of filterable particulate matter (FPM) all meet the Chinese ultralow emission (ULE) standards, whereas CPM concentrations are prominent (even exceed 10 mg/Nm3 from two CFPPs). We find that NH4 + and Cl– increase markedly through the ammonia-based WFGD, and SO4 2– is generally the main ionic component, both in CPM and FPM. Notably, the occurrence of elemental Se in FPM and CPM is significantly affected by WFGD. Furthermore, the established chemical profiles in FPM and CPM show a distinct discrepancy. In CPM, the elemental S mainly exists as a sulfate, and the metallic elements of Na, K, Mg, and Ca mainly exist as ionic species. Our results may indicate that not all SO3 are included in CPM and they co-exist in stack plume. With the substantial reduction of sulfur dioxide (SO2), S distributed in SO3, CPM, and FPM becomes non-negligible. Finally, the emission factors of CPM and SO3 under typical ULE technical routes fall in the ranges of 74.33–167.83 and 48.76–86.30 g/(t of coal) accordingly.

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“…However, according to the three dimensions of sustainable development, achieving the sustainability of energy systems, the way that must be passed is minimizing the environmental impact. To the best of our knowledge, although certain contributions have been obtained in the elds of pollutant emissions linking with clean coal technologies, the related studies mainly focus on the sources and concentrations of airborne pollutants (Song et al, 2020;, health impacts of pollutant emissions have not been explained comprehensively. On the other hand, the propose of clean coal technologies is applying coal resources in a more e cient and environmental-friendly way.…”

Section: Introductionmentioning

confidence: 99%

Health Impacts of Air Pollution in Chinese Coal-Based Clean Energy Industry: LCA-Based and WTP-Oriented Modeling

Zhang

Yang

Tong

2021

Preprint

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The evolution of energy system occupies an important position in economic development and quality of life. Influenced by the energy endowment in China, developing the coal-based clean energy industry has been regarded as a guaranteed path to realizing the clean and efficient use of coal resources. However, an evaluation paradigm could systematically assess the health impacts of airborne pollution in this industry is still lack, which is our concern. Combining with life cycle analysis, probabilistic risk models, and health impacts models, this study proposes a series of models which are consistent enough to unite pollutant concentration, health risk, and health impact, and equip assessment results with more intuitive significance using life and economic loss. Further, case studies for three typical coal-based clean energy processing, namely, coal mining, coal-fired power generation, and coal liquefaction are presented to verify the reliability of these models. It is proved that this evaluation paradigm can help to find out the worksite, substage, and airborne pollutant with the most severe impact, and more importantly, the application of evaluation indicators with life and economic meaning is more profitable to provide references for minimizing or eliminating the health impacts, moreover, explicit the developing directions of the national energy industry.

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Migration and distribution characteristics of organic and inorganic fractions in condensable particulate matter emitted from an ultralow emission coal-fired power plant

Cited by 50 publications

References 19 publications

Effects of the Changes of Load and Flue Gas Temperature on the Emission of Particulate Matter from the Coal-fired Unit

Effects of the Changes of Load and Flue Gas Temperature on the Emission of Particulate Matter from the Coal-fired Unit

Non-Negligible Stack Emissions of Noncriteria Air Pollutants from Coal-Fired Power Plants in China: Condensable Particulate Matter and Sulfur Trioxide

Health Impacts of Air Pollution in Chinese Coal-Based Clean Energy Industry: LCA-Based and WTP-Oriented Modeling

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