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- Title
地下矿井煤炭碳排放量估算方法研究-以阜康矿区西部为例.
- Authors
彭仁东; 韦 波; 李 鑫; 张 冀; 张紫昭; 王 博; 张 娜; 崔德广
- Abstract
Carbon emissions have come into sharp focus of human society. The carbon emissions from coals rank as the most predominant part of China’s total carbon emissions. Presently, there is no available study on the accurate calculation of carbon emissions from coals in typical underground mines in Xinjiang, with the CH4 emission even overlooked. This study centers on the carbon emissions from coals in underground mines in the western Fukang mining area. As per the occurrence laws of CH4 and CO2 in coal seams, as well as coal mining plans, this study classified the sources of carbon emissions from coals (excluding the emissions from fossil combustion, power generation, and thermal supply) into four parts: carbon emissions from coals mined, planned coals to be mined, unrecovered coals, and underground coal pillars. Based on this, the total carbon emissions from coals were calculated. The findings include: (1) based on the average mining years of underground mines, the carbon emissions from coals mined, planned coals to be mined, unrecovered coals, and underground coal pillars were calculated at 21 700 t/a, 53 500 t/a, 4 000 t/a, and 7 400 t/a, respectively, totaling 86 600 t/a. (2) Given that the four types of carbon emission sources are in the order of planned coals to be mined > coals mined > underground coal pillars > unmined coals, this study suggested conducting gas extraction before coal mining, strengthening filling to inhibit emissions from unmined resources and coal pillars, performing comprehensive recycling and utilization of gas of different concentrations to reduce carbon emissions in the process of coal mining. (3) The carbon emissions from coals in the underground mines are primarily influenced by the total coal production (sum of coals mined and planned coals to be mined), the CH4 and CO2 content in coal seams, desorption rate, and the metamorphic degree of coals. These carbon emissions increase with the values of these four factors. The results of this study will provide suggestions for controlling carbon emissions from coals and determining measures for carbon emission reduction in the western Fukang mining area.
- Subjects
XINJIANG Uygur Zizhiqu (China); CHINA; MINES &; mineral resources; COAL mining; CARBON emissions; GAS extraction; GAS well drilling; COAL; EMISSION standards; MINE safety
- Publication
Coal Geology & Exploration, 2023, Vol 51, Issue 10, p9
- ISSN
1001-1986
- Publication type
Article
- DOI
10.12363/issn.1001-1986.23.03.0127