Accurate monitoring and accounting of methane emission in underground coal mine

被引：0
|
作者：
Xie B. [1 ]
Li X. [1 ]
Zhang J. [1 ]
Luan Z. [1 ]
Li J. [2 ]
Chen W. [2 ]
Wang Z. [3 ]
Tang X. [3 ]
机构：
[1] School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing
[2] School of Earth Science and Mapping Engineering, China University of Mining and Technology-Beijing, Beijing
[3] Huadian Electric Power Research Institute Co., Ltd., Beijing
来源：
Meitan Kexue Jishu/Coal Science and Technology (Peking) | 2024年 / 52卷 / 04期
基金：
中央高校基本科研业务费专项资金资助; 国家重点研发计划;
关键词：
accurate monitoring and accounting; emission factor; IPCC default value; methane emission; underground coal mine;
D O I：
10.12438/cst.2023-1992
中图分类号：
学科分类号：
摘要：
Methane, the second most prevalent greenhouse gas globally, is characterized by its high global warming potential and short atmospheric lifetime. It is primarily emitted from sectors such as coal mining, oil and gas production, agriculture, livestock rearing, and waste management. Active, prudent, and orderly control of methane emissions offers a multifaceted benefit: it mitigates global warming, enhances the economic value through the resource utilization of energy, provides environmental advantages by control of pollutants, and improves safety by reducing production accidents. Methane is also the principal greenhouse gas emitted in coal mine operations. Currently, monitoring and researching the distribution of methane emissions and their concentration within the three-dimensional space of coal mines have become a key focus in China’s methane emission control efforts, which is of significant importance for coal mining enterprises to align with national strategies. A study conducted on a high-gas mine in Shanxi and a low-gas mine in Shaanxi for methane emission monitoring and accounting utilized fixed monitoring, manual monitoring, drone monitoring, and post-mining activity monitoring to investigate the distribution of methane in high and low gas mines in China and to analyze their methane emissions. The results indicate that: ① The methane emission volumes for a certain high-gas mine in Shanxi and a low-gas mine in Shaanxi published by the U.S.-based Climate TRACE website for the year 2022 show a significant discrepancy from the results calculated using the ground measurement method, with the published annual methane emission volume for a certain low-gas mine being 10.92 times that of the ground measurement calculation. The top-down monitoring and accounting methods have been found to be insufficiently accurate and unable to provide reliable data support for carbon trading. ② In the monitoring and accounting of post-mining activities, the use of default values recommended by the IPCC results in methane emissions that are 3 to 5 times higher than those calculated using the ground measurement method, and there is a significant variation in the emissions calculated based on coal samples of different sizes and exposure durations. There is an urgent need for a unified and precise testing standard to ensure fair and accurate data for future carbon market transactions. © 2024 China Coal Society. All rights reserved.
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页码：119 / 130
页数：11
相关论文
共 26 条
  • [1] REN Shihua, XIE Yachen, J IAO Xiaomiao, Et al., Characteristics of carbon emissions during coal development and technical approaches for carbon neutral development[J], Advanced Engineering Sciences, 54, 1, (2022)
  • [2] LI Xin, Research on carbon emission calculation and low-carbon pathway in coal development[J], Coal Economic Research, 41, 7, (2021)
  • [3] KEITH H, VARDON M, OBST C, Et al., Evaluating nature-based solutions for climate mitigation and conservation requires comprehensive carbon accounting[J], Science of the Total Environment, 796, 1, (2022)
  • [4] SU Yinao, Understandings and thinkings of China's carbon peaking, carbon neutrality and energy development strategies[J], World oil industry, 29, 4, (2022)
  • [5] 30, 11
  • [6] LIU Wenge, XU Xin, HAN Jiaye, Et al., Trend model and key technologies of coal mine methane emission reduction aiming for the carbon neutrality[J], Journal of China Coal Society, 47, 1, (2022)
  • [7] COHEN Blake Jason, LIU Yanqiu, QIN Kai, Et al., Analysis of the characteristics of methane in the c oal mining area of southeastern Shanxi with eddy and mobile observation[J], Journal of China Coal Society, 47, 12, (2022)
  • [8] FAN Xing, LI Lu, QIN Yuanyuan, Et al., The pathway from carbon peak to carbon neutrality in major developed economies and its insights [J], Climate Change Research, 19, 1, (2023)
  • [9] LI Shuhua, Visual analysis of carbon emission trading research in CHINA based on cite space, The 2022 Annual Conference of Science and Technology of the Chinese Society of Environmental Sciences - Proceedings of the Branch of Environmental Engineering Technology Innovation and Application (III), 222, pp. 799-807
  • [10] CAI Bofeng, ZHU Songli, YU Shengmin, Et al., The ineterpretation of 2019 refinement to the 2006 IPCC guidelines for national greenhouse gas inventory[J], Environmental Engineering, 37, 8, (2019)
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