Unit-based emission inventory and uncertainty assessment of coal-fired power plants

Sun, Yichao; Wu, Xuecheng; Zhang, Yongxin; Zheng, Chenghang; Gao, Xiang; Cen, Kefa

doi:10.1016/j.atmosenv.2014.10.023

Cited by 62 publications

(44 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous studies have estimated China′s primary PM 2.5 emissions from coal-or fuel oil-fired power plants within a national inventory (Zhang et al, 2007;Cao et al, 2011;Lei et al, 2011;Zhao et al, 2013a;Chen et al, 2014) or as a part of regional inventories (Huang et al, 2011;Fu et al, 2013). Some of these studies have also reported emission trends (Lei et al, 2011;Zhao et al, 2013a).…”

Section: Introductionmentioning

confidence: 98%

Emission Characteristics and Control Prospects of Primary PM2.5 from Fossil Fuel Power Plants in China

Wang

Cheng

Tian

et al. 2016

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

In this study, a unit-based approach was used to establish an integrated emission inventory of primary PM 2.5 from fossil fuel (coal, oil, and natural gas) power plants in China. The inventory was of high spatial and temporal resolution, and composed of detailed chemical speciation. In 2014, the total emissions were estimated to be approximately 669.53 kt. The emissions of primary PM 2.5 from coal-fired power plants (CFPs) were 668.56 kt, making CFPs the largest contributor. The emissions of primary PM 2.5 from oil-fired power plants (OFPs) and natural gas-fired power plants (GFPs) were approximately 17.41 t and 945.60 t, respectively. Spatial distribution features demonstrated that the emissions in the eastern and central provinces of China were much higher than those in the west, except for provinces involved in the "west-to-east power transmission" project. For CFPs, crustal elements and water-soluble inorganic ions were the primary species of PM 2.5 . By contrast, for OFPs and GFPs, carbonaceous components were the predominant species of PM 2.5 . Moreover, this study conducted a scenario analysis of changes in PM 2.5 emissions resulting from technical advancement, penetration, and substitution of CFPs by GFPs for the target years.

show abstract

Section: Introductionmentioning

confidence: 98%

Emission Characteristics and Control Prospects of Primary PM2.5 from Fossil Fuel Power Plants in China

Wang

Cheng

Tian

et al. 2016

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

show abstract

“…For example, coalfired power plants have been forced to install flue gas desulfurization and denitration (Zhang et al, 2012;Chen et al, 2014), coal has been replaced with natural gas and electricity in megacities (Wang et al, 2009;Duan et al, 2012;Zhao et al, 2013a;, stricter emission standards have been implemented for vehicles and industrial boilers (Zhang et al, 2012;Tang et al, 2016) and so on, resulting in a decreasing trend of primary pollutants including PM 2.5 in recent years Wen et al, 2016;Zhang et al, 2016). However, the PM 2.5 levels were still larger than 1000 µg m −3 in some areas of the Beijing-Tianjin-Hebei (BTH) region during the period of the red alert for haze in December 2016 (http://english.mep.gov.cn/News_service/ media_news/201612/t20161220_369317.shtml).…”

Section: Introductionmentioning

confidence: 99%

The contribution of residential coal combustion to atmospheric PM<sub>2. 5</sub> in northern China during winter

et al. 2017

View full text Add to dashboard Cite

Abstract. A vast area in northern China, especially during wintertime, is currently suffering from severe haze events due to the high levels of atmospheric PM 2.5 . To recognize the reasons for the high levels of PM 2.5 , daily samples of PM 2.5 were simultaneously collected at the four sampling sites of Beijing city (BJ), Baoding city (BD), Wangdu county (WD) and Dongbaituo (DBT) during the winter and spring of [2014][2015] at DBT than at WD, BD and BJ during the winter of 2015 indicated that the pollutants in the rural area were not due to transportation from neighbouring cities but dominated by local emissions. As the distinct source of atmospheric OC and EC in the rural area, the residential coal combustion also made a contribution to secondary inorganic ions through the emissions of their precursors (NO x , SO 2 , NH 3 and HCl) as well as heterogeneous or multiphase reactions on the surface of OC and EC. The average mass proportions of OC, EC, NO − 3 and SO 2− 4 at BD and WD were found to be very close to those at DBT, but were evidently different from those at BJ, implying that the pollutants in the cities of WD and BD, which are fully surrounded by the countryside, were strongly affected by the residential coal combustion. The OC / EC ratios at the four sampling sites were almost the same value (4.8) when the concentrations of PM 2.5 were greater than 150 µg m −3 , suggesting that the residential coal combustion could also make a dominant contribution to atmospheric PM 2.5 at BJ during the severe pollution period when the air parcels were usually from southwest-south regions, where a high density of farmers reside. The evident increase in the number of the species involved in significant correlations (p < 0.05) from the countryside to the cities further confirmed that residential coal combustion was the dominant source of key species in the rural area. However, the complex sources including local emissions and regional transportation were responsible for the atmospheric species in the cities. Strong correlations among OC, EC, Cl − , NO − . Based on the chemical mass closure (CMC) method, the contributions of the primary particle emission from residential coal combustion to atmospheric PM 2.5 at BJ, BD, WD and DBT were estimated to be 32, 49, 43 and 58 %, respectively.

show abstract

“…Data from several highly polluting industries in China that are the target industries for national pollution control (i.e., the thermal power, ceramics manufacturing, steel smelting, and coking industries) were collected and their air pollutant emissions compared (Table 3) (Chen et al, 2014;Wu et al, 2015a, b;Wang et al, 2016;Hua et al, 2016). Of these industries, the coking industry emitted the highest amount of VOCs.…”

Section: Emission Comparison Of Heavy Polluting Industries and Uncertmentioning

confidence: 99%

“…Because coke production involves multiple pollutionproducing steps and its air pollutant emissions are severe, highly economical technologies must be employed for all potential pollution-producing steps. Chen et al, 2014;Wu et al, 2015bHua et al, 2016Wu et al, 2015a This study A number of pollution control technologies and methods can be used in the coking industry (MEP, 2010;CCIA, 2016d). The specific control technologies for different coking procedures and their corresponding air pollution control effects are illustrated in SI Table S7.…”

Section: Emission Reduction Potential Analysis and Relevant Pollutionmentioning

confidence: 99%

Analysis of Reduction Potential of Primary Air Pollutant Emissions from Coking Industry in China

Wang

Cheng

Tian

et al. 2018

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

Air pollutant emissions from the coking industry in China, the world's largest coke producer, are a major societal concern. This study employed a bottom-up emission-factor methodology to estimate the country's coking-industry airpollutant emissions. Total suspended particulate matter (TSP), particulate matter with an aerodynamic diameter less than or equal to 2.5 µm (PM 2.5 ), sulfur dioxide (SO 2 ), nitrogen oxides (NO x ), volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), carbon monoxide (CO), and methane (CH 4 ) were considered. The emissions in 2015 were estimated to be 368. 36, 23.28, 402.54, 174.43, 1325.42, 28.24, 2036.43, and 71.68 kt for TSP, PM 2.5 , SO 2 , NO x , VOCs, PAHs, CO, and CH 4 , respectively, with an annual average growth rate of 1.1% during the 12th five-year-plan (2011)(2012)(2013)(2014)(2015). A comparative analysis was performed on emission contributions from air pollutants produced by various types of coke ovens and using various coking procedures. The objectives of the 13th five-year-plan (2016-2020) were used to predict China's production of coke and methods of control in 2020 and to analyze the potential reduction in typical air pollutants. The results show that emissions of TSP, SO 2 , and NO x will be reduced by 82.9%, 94.4%, and 6.9%, respectively. Moreover, this study proposes a series of feasible control measures for air-pollutant emissions from the coking industry in China.

show abstract

Unit-based emission inventory and uncertainty assessment of coal-fired power plants

Cited by 62 publications

References 27 publications

Emission Characteristics and Control Prospects of Primary PM2.5 from Fossil Fuel Power Plants in China

Emission Characteristics and Control Prospects of Primary PM2.5 from Fossil Fuel Power Plants in China

The contribution of residential coal combustion to atmospheric PM<sub>2. 5</sub> in northern China during winter

Analysis of Reduction Potential of Primary Air Pollutant Emissions from Coking Industry in China

Contact Info

Product

Resources

About

Unit-based emission inventory and uncertainty assessment of coal-fired power plants

Cited by 62 publications

References 27 publications

Emission Characteristics and Control Prospects of Primary PM2.5 from Fossil Fuel Power Plants in China

Emission Characteristics and Control Prospects of Primary PM2.5 from Fossil Fuel Power Plants in China

The contribution of residential coal combustion to atmospheric PM&lt;sub&gt;2. 5&lt;/sub&gt; in northern China during winter

Analysis of Reduction Potential of Primary Air Pollutant Emissions from Coking Industry in China

Contact Info

Product

Resources

About

The contribution of residential coal combustion to atmospheric PM<sub>2. 5</sub> in northern China during winter