High Spatial Resolution Emission Inventory of Air Pollutants and Carbon in China’s Independent Coking Industry

China is the largest producer and exporter of coke globally, which means that it is very important to understand the characteristics of air pollutants and carbon emissions from China’s independent coking industry. This study was the first to establish a bottom-up inventory of the air pollutants and...

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Main Authors: Xiaochun Chen, Jianhui Li, Min Jia, Shaobo Chen, Shangxuan Zhang, Xin Bo, Xue Feng, Guangxia Dong
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Atmosphere
Subjects:
Online Access:https://www.mdpi.com/2073-4433/14/2/348
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author Xiaochun Chen
Jianhui Li
Min Jia
Shaobo Chen
Shangxuan Zhang
Xin Bo
Xue Feng
Guangxia Dong
author_facet Xiaochun Chen
Jianhui Li
Min Jia
Shaobo Chen
Shangxuan Zhang
Xin Bo
Xue Feng
Guangxia Dong
author_sort Xiaochun Chen
collection DOAJ
description China is the largest producer and exporter of coke globally, which means that it is very important to understand the characteristics of air pollutants and carbon emissions from China’s independent coking industry. This study was the first to establish a bottom-up inventory of the air pollutants and carbon emissions of China’s independent coking industry during 2001–2018 based on continuous emission monitoring system online monitoring data and unit-based corporate information. Based on the developed emission inventory, four scenarios were established to analyze potential emissions reduction of air pollutants and carbon dioxide (CO<sub>2</sub>) in future. The emissions of particulate matter (PM<sub>10</sub> and PM<sub>2.5</sub>), sulfur dioxide (SO<sub>2</sub>), black carbon (BC) and organic carbon (OC) decreased by 62.11%, 63.41%, 72.85%, 63.41% and 63.41%, respectively. CO<sub>2</sub>, carbon monoxide (CO), volatile organic compounds (VOCs) and nitrogen oxides (NO<sub>X</sub>) emissions increased by 355.51%, 355.51%, 355.51% and 99.74%, respectively. In 2018, PM<sub>10</sub>, PM<sub>2.5</sub>, SO<sub>2</sub>, NOx, BC, OC, CO, VOCs and CO<sub>2</sub> emissions were, respectively. 45.20, 16.91, 63.84, 117.71, 5.07, 5.92, 554.91, 1026.58 Gg, and 176.88 Tg. Shanxi province made the greatest contributions to the total emissions of air pollutants and CO<sub>2</sub> from this industry by 25.01%. The emission source that contributed most to PM<sub>2.5</sub> (SO<sub>2</sub> and NO<sub>X</sub>) emissions was coke pushing (quenching and the coke oven chimney respectively) in 2018. Under the ULE scenario (2018–2035), PM<sub>2.5</sub> and SO<sub>2</sub> emissions will reduce by more than 30%. Under the PCP scenario, PM<sub>2.5</sub> and SO<sub>2</sub> emissions will reduce by more than 55%. Under the CBP scenario, CO<sub>2</sub> emissions will peak at 197.99 Tg in 2025 and decrease to 70% of the peak in 2035. The results showed the emission characteristics of air pollutants and CO<sub>2</sub>, future emission with several scenarios and cooperative reduction potential in China’s independent coking industry, which provides scientific support for the development of pollution control strategies.
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spelling doaj.art-341a3ee32f944e9abc02d931def47c802023-11-16T19:03:35ZengMDPI AGAtmosphere2073-44332023-02-0114234810.3390/atmos14020348High Spatial Resolution Emission Inventory of Air Pollutants and Carbon in China’s Independent Coking IndustryXiaochun Chen0Jianhui Li1Min Jia2Shaobo Chen3Shangxuan Zhang4Xin Bo5Xue Feng6Guangxia Dong7College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, ChinaCollege of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, ChinaSchool of Economics and Management, Beihang University, Beijing 100191, ChinaCollege of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, ChinaCISDI Engineering Co., Ltd., Chongqing 400013, ChinaCollege of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, ChinaChina National Environmental Monitoring Centre, Beijing 100012, ChinaChina National Environmental Monitoring Centre, Beijing 100012, ChinaChina is the largest producer and exporter of coke globally, which means that it is very important to understand the characteristics of air pollutants and carbon emissions from China’s independent coking industry. This study was the first to establish a bottom-up inventory of the air pollutants and carbon emissions of China’s independent coking industry during 2001–2018 based on continuous emission monitoring system online monitoring data and unit-based corporate information. Based on the developed emission inventory, four scenarios were established to analyze potential emissions reduction of air pollutants and carbon dioxide (CO<sub>2</sub>) in future. The emissions of particulate matter (PM<sub>10</sub> and PM<sub>2.5</sub>), sulfur dioxide (SO<sub>2</sub>), black carbon (BC) and organic carbon (OC) decreased by 62.11%, 63.41%, 72.85%, 63.41% and 63.41%, respectively. CO<sub>2</sub>, carbon monoxide (CO), volatile organic compounds (VOCs) and nitrogen oxides (NO<sub>X</sub>) emissions increased by 355.51%, 355.51%, 355.51% and 99.74%, respectively. In 2018, PM<sub>10</sub>, PM<sub>2.5</sub>, SO<sub>2</sub>, NOx, BC, OC, CO, VOCs and CO<sub>2</sub> emissions were, respectively. 45.20, 16.91, 63.84, 117.71, 5.07, 5.92, 554.91, 1026.58 Gg, and 176.88 Tg. Shanxi province made the greatest contributions to the total emissions of air pollutants and CO<sub>2</sub> from this industry by 25.01%. The emission source that contributed most to PM<sub>2.5</sub> (SO<sub>2</sub> and NO<sub>X</sub>) emissions was coke pushing (quenching and the coke oven chimney respectively) in 2018. Under the ULE scenario (2018–2035), PM<sub>2.5</sub> and SO<sub>2</sub> emissions will reduce by more than 30%. Under the PCP scenario, PM<sub>2.5</sub> and SO<sub>2</sub> emissions will reduce by more than 55%. Under the CBP scenario, CO<sub>2</sub> emissions will peak at 197.99 Tg in 2025 and decrease to 70% of the peak in 2035. The results showed the emission characteristics of air pollutants and CO<sub>2</sub>, future emission with several scenarios and cooperative reduction potential in China’s independent coking industry, which provides scientific support for the development of pollution control strategies.https://www.mdpi.com/2073-4433/14/2/348characteristics of air pollutantscoking industrycontinuous emission monitoring systemcarbon emissionscenario analysis
spellingShingle Xiaochun Chen
Jianhui Li
Min Jia
Shaobo Chen
Shangxuan Zhang
Xin Bo
Xue Feng
Guangxia Dong
High Spatial Resolution Emission Inventory of Air Pollutants and Carbon in China’s Independent Coking Industry
Atmosphere
characteristics of air pollutants
coking industry
continuous emission monitoring system
carbon emission
scenario analysis
title High Spatial Resolution Emission Inventory of Air Pollutants and Carbon in China’s Independent Coking Industry
title_full High Spatial Resolution Emission Inventory of Air Pollutants and Carbon in China’s Independent Coking Industry
title_fullStr High Spatial Resolution Emission Inventory of Air Pollutants and Carbon in China’s Independent Coking Industry
title_full_unstemmed High Spatial Resolution Emission Inventory of Air Pollutants and Carbon in China’s Independent Coking Industry
title_short High Spatial Resolution Emission Inventory of Air Pollutants and Carbon in China’s Independent Coking Industry
title_sort high spatial resolution emission inventory of air pollutants and carbon in china s independent coking industry
topic characteristics of air pollutants
coking industry
continuous emission monitoring system
carbon emission
scenario analysis
url https://www.mdpi.com/2073-4433/14/2/348
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