Study on Characteristics and Model Prediction of Methane Emissions in Coal Mines: A Case Study of Shanxi Province, China
The venting of methane from coal mining is China’s main source of methane emissions. Accurate and up-to-date methane emission factors for coal mines are significant for reporting and controlling methane emissions in China. This study takes a typical coal mine in Shanxi Province as the research objec...
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| Format: | Article |
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MDPI AG
2023-09-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/14/9/1422 |
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| author | Xueli Zhang Tao Zhu Nengjing Yi Bo Yuan Chen Li Zefu Ye Zhujun Zhu Xing Zhang |
| author_facet | Xueli Zhang Tao Zhu Nengjing Yi Bo Yuan Chen Li Zefu Ye Zhujun Zhu Xing Zhang |
| author_sort | Xueli Zhang |
| collection | DOAJ |
| description | The venting of methane from coal mining is China’s main source of methane emissions. Accurate and up-to-date methane emission factors for coal mines are significant for reporting and controlling methane emissions in China. This study takes a typical coal mine in Shanxi Province as the research object and divides the coal mine into different zones based on the occurrence structure of methane in Shanxi Province. The methane emission characteristics of underground coal mine types and monitoring modes were studied. The emissions of methane from coal seams and ventilation methane of six typical coal mine groups in Shanxi Province were monitored. The measured methane concentration data were corrected by substituting them into the methane emission formula, and the future methane emissions were predicted by the coal production and methane emission factors. The results show that the number of methane mines and predicted reserves in Zone I of Shanxi Province are the highest. The average methane concentration emitted from coal and gas outburst mines is about 22.52%, and the average methane concentration emitted from high-gas mines is about 10.68%. The methane emissions from coal and gas outburst mines to the atmosphere account for about 64% of the total net methane emissions. The predicted methane emission factor for Shanxi coal mines is expected to increase from 8.859 m<sup>3</sup>/t in 2016 to 9.136 m<sup>3</sup>/t in 2025, and the methane emissions from Shanxi coal mines will reach 8.43 Tg in 2025. |
| first_indexed | 2024-03-10T23:03:37Z |
| format | Article |
| id | doaj.art-71ba58df653145e9abd4a47fda2f653d |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T23:03:37Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-71ba58df653145e9abd4a47fda2f653d2023-11-19T09:31:04ZengMDPI AGAtmosphere2073-44332023-09-01149142210.3390/atmos14091422Study on Characteristics and Model Prediction of Methane Emissions in Coal Mines: A Case Study of Shanxi Province, ChinaXueli Zhang0Tao Zhu1Nengjing Yi2Bo Yuan3Chen Li4Zefu Ye5Zhujun Zhu6Xing Zhang7School of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaSchool of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaSchool of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaSchool of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaSchool of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, ChinaGemeng International Co., Ltd., Taiyuan 030002, ChinaGemeng International Co., Ltd., Taiyuan 030002, ChinaSchool of Environmental Science and Engineering, Suzhou University of Science and Technology, No. 1 Kerui Road, Suzhou 215009, ChinaThe venting of methane from coal mining is China’s main source of methane emissions. Accurate and up-to-date methane emission factors for coal mines are significant for reporting and controlling methane emissions in China. This study takes a typical coal mine in Shanxi Province as the research object and divides the coal mine into different zones based on the occurrence structure of methane in Shanxi Province. The methane emission characteristics of underground coal mine types and monitoring modes were studied. The emissions of methane from coal seams and ventilation methane of six typical coal mine groups in Shanxi Province were monitored. The measured methane concentration data were corrected by substituting them into the methane emission formula, and the future methane emissions were predicted by the coal production and methane emission factors. The results show that the number of methane mines and predicted reserves in Zone I of Shanxi Province are the highest. The average methane concentration emitted from coal and gas outburst mines is about 22.52%, and the average methane concentration emitted from high-gas mines is about 10.68%. The methane emissions from coal and gas outburst mines to the atmosphere account for about 64% of the total net methane emissions. The predicted methane emission factor for Shanxi coal mines is expected to increase from 8.859 m<sup>3</sup>/t in 2016 to 9.136 m<sup>3</sup>/t in 2025, and the methane emissions from Shanxi coal mines will reach 8.43 Tg in 2025.https://www.mdpi.com/2073-4433/14/9/1422coal mine methaneemission characteristicsmethane emission factorsemission forecast |
| spellingShingle | Xueli Zhang Tao Zhu Nengjing Yi Bo Yuan Chen Li Zefu Ye Zhujun Zhu Xing Zhang Study on Characteristics and Model Prediction of Methane Emissions in Coal Mines: A Case Study of Shanxi Province, China Atmosphere coal mine methane emission characteristics methane emission factors emission forecast |
| title | Study on Characteristics and Model Prediction of Methane Emissions in Coal Mines: A Case Study of Shanxi Province, China |
| title_full | Study on Characteristics and Model Prediction of Methane Emissions in Coal Mines: A Case Study of Shanxi Province, China |
| title_fullStr | Study on Characteristics and Model Prediction of Methane Emissions in Coal Mines: A Case Study of Shanxi Province, China |
| title_full_unstemmed | Study on Characteristics and Model Prediction of Methane Emissions in Coal Mines: A Case Study of Shanxi Province, China |
| title_short | Study on Characteristics and Model Prediction of Methane Emissions in Coal Mines: A Case Study of Shanxi Province, China |
| title_sort | study on characteristics and model prediction of methane emissions in coal mines a case study of shanxi province china |
| topic | coal mine methane emission characteristics methane emission factors emission forecast |
| url | https://www.mdpi.com/2073-4433/14/9/1422 |
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